[Help] Changing Service Provider SW - Samsung Galaxy S8+ Questions & Answers

Hey guys, I bought my s8+ 955FD in Thailand, and no matter what I flash the initial language is always Thai, the Google Playstore is always set to Thailand, what I realised is that the Service provider SW ver in software information is always set TH/TH/TH, is there any way to change this?

Yes there is. Find a CSC package which contains the country language you wish. Make sure the CSC package is for the same version of your overall phone, which if stock may be a 950F, or what ever. flash the CSC with Odin. Do not use the Home CSC from the package, as what will leave your CSC as TH. Some folks have talked about with new phones you need to get a SIM card from the local where the phone was 'meant' to be used, and use if for 5 minutes, so that will effect the 'unlock' ability to be used for other regions. Check into that, as well.
If you decide to change the overall software on the phone, 'F' packages seem to work pretty well. If you do decide to flash an F ROM, you also need to flash an 'F' CSC (multi) package, where you can select the country you wish and the carrier from the install dialogue.
Often the preferred installer for custom ROMS seems to be Aroma, as it is a very flexible installer for ROMs and about anything you can think of to add onto or into a ROM can be incorporated into the Aroma installer.
If you are not going to use a custom ROM, then you will flash a CSC package from Odin, but again, first check to see if you must use your phone for 5 minutes from the SIM local.

JeffDC said:
Yes there is. Find a CSC package which contains the country language you wish. Make sure the CSC package is for the same version of your overall phone, which if stock may be a 950F, or what ever. flash the CSC with Odin. Do not use the Home CSC from the package, as what will leave your CSC as TH. Some folks have talked about with new phones you need to get a SIM card from the local where the phone was 'meant' to be used, and use if for 5 minutes, so that will effect the 'unlock' ability to be used for other regions. Check into that, as well.
If you decide to change the overall software on the phone, 'F' packages seem to work pretty well. If you do decide to flash an F ROM, you also need to flash an 'F' CSC (multi) package, where you can select the country you wish and the carrier from the install dialogue.
Often the preferred installer for custom ROMS seems to be Aroma, as it is a very flexible installer for ROMs and about anything you can think of to add onto or into a ROM can be incorporated into the Aroma installer.
If you are not going to use a custom ROM, then you will flash a CSC package from Odin, but again, first check to see if you must use your phone for 5 minutes from the SIM local.
Click to expand...
Click to collapse
I have flashed multiple stock roms with their respective CSC and it does not work that was my question

Have you used the phone for 5 minutes within the originating region?
"Some folks have talked about with new phones you need to get a SIM card from the local where the phone was 'meant' to be used, and use if for 5 minutes" . . . in order to functionally unlock it for out of the region use. Is your software that version?
When you flash the phone, what SIM is inside the phone before the reboot?
Are you rooted? If so flash via TWRP and a CSC which has an Aroma installer.
What else can you tell us about the specifics of your phone?
If you re-flash the OEM firmware, or when your first setup new, do you get any language options on the start setup page, besides Thai?

JeffDC said:
Have you used the phone for 5 minutes within the originating region?
"Some folks have talked about with new phones you need to get a SIM card from the local where the phone was 'meant' to be used, and use if for 5 minutes" . . . in order to functionally unlock it for out of the region use. Is your software that version?
When you flash the phone, what SIM is inside the phone before the reboot?
Are you rooted? If so flash via TWRP and a CSC which has an Aroma installer.
What else can you tell us about the specifics of your phone?
If you re-flash the OEM firmware, or when your first setup new, do you get any language options on the start setup page, besides Thai?
Click to expand...
Click to collapse
Dear Jeff, thank you for the help and the follow-up. I have managed to change it partially by inserting a new SIM from the new country(Brazil) and when I did so, it asked me for a reset and I went through with it, now it's ZTO/ZTO/THL ---- so the first two changed to Brazilian CSC but the third one is still THL, any thoughts? what's the difference between the 3? And yes I had used it for a lot longer than 5 minutes when I was in Thailand. I just want to get a clean install without any remnants from THL - I am currently on CRAP/CRB7 - Waiting the 7 needed days to get OEM unlock and be able to flash TWRP(from what I understood), please tell me what to do to get rid of the THL from my phone completely. Thank you So much

Once rooted, find a multi-CSC package with your country and flash it (again). You might need to flash the baseband, so I'd look into that, as well.
On an S7 from with a Chinese CSC, once I found a custom ROM, , I flashed TWRP in Odin, booted into TWRP/recovery, flashed the custom ROM, verity and SU, and then flashed a multi-CSC package Aroma package, mine lost all the Chinese info.
Sure would be great if these phone companies would just give us unlocked phones, with straight forward methods to make these simple changes. I think most folks would pay a little extra for the ability.

Hi Louayd. Did you fix this issue?
I'm passing the same problem with S9+. I bought in Portugal and trying to use in Brazil. I can't root phone because my intention is use the Samsung Pay and it with rooted phone it doesn't work.

I am facing the same issue. I bought Note9 from Singapore from M1 Operator. I have flashed different countries ROMs but my phone always keep some bloatware from M1 Singapore and the "Service Provider SW Ver" always show MM1/MM1,MM1/XSP despite whatever country/region Stock ROM I flashed. My phone is already OEM Unlocked.
Need support if anyone has managed to change it.
I do not have Original Country SIM to test as mentioned above. I bought it from Singapore and wanted to use it in Cambodia. Right now VoLTE functionality is not working.
I tried to use ShortcutMaster app also but it is also not able to show anything under IMS Service and Settings.
Regards,

Can i flash csc of samsung a750f on a750gn??
Basically i need call recording which is not supported in 750gn , but available in 750f..

Galaxy A51 2020
JeffDC said:
Yes there is. Find a CSC package which contains the country language you wish. Make sure the CSC package is for the same version of your overall phone, which if stock may be a 950F, or what ever. flash the CSC with Odin. Do not use the Home CSC from the package, as what will leave your CSC as TH. Some folks have talked about with new phones you need to get a SIM card from the local where the phone was 'meant' to be used, and use if for 5 minutes, so that will effect the 'unlock' ability to be used for other regions. Check into that, as well.
If you decide to change the overall software on the phone, 'F' packages seem to work pretty well. If you do decide to flash an F ROM, you also need to flash an 'F' CSC (multi) package, where you can select the country you wish and the carrier from the install dialogue.
Often the preferred installer for custom ROMS seems to be Aroma, as it is a very flexible installer for ROMs and about anything you can think of to add onto or into a ROM can be incorporated into the Aroma installer.
If you are not going to use a custom ROM, then you will flash a CSC package from Odin, but again, first check to see if you must use your phone for 5 minutes from the SIM local.
Click to expand...
Click to collapse
I have this issue i installed firmware SM-A515F Greece EUR from sammobile but is still Service provider ver. in SER but of Greece EUR firmware has been installed normally but in the Service provider ver. not change to Greece EUR
how to fix this?

JeffDC said:
Yes there is. Find a CSC package which contains the country language you wish. Make sure the CSC package is for the same version of your overall phone, which if stock may be a 950F, or what ever. flash the CSC with Odin. Do not use the Home CSC from the package, as what will leave your CSC as TH. Some folks have talked about with new phones you need to get a SIM card from the local where the phone was 'meant' to be used, and use if for 5 minutes, so that will effect the 'unlock' ability to be used for other regions. Check into that, as well.
If you decide to change the overall software on the phone, 'F' packages seem to work pretty well. If you do decide to flash an F ROM, you also need to flash an 'F' CSC (multi) package, where you can select the country you wish and the carrier from the install dialogue.
Often the preferred installer for custom ROMS seems to be Aroma, as it is a very flexible installer for ROMs and about anything you can think of to add onto or into a ROM can be incorporated into the Aroma installer.
If you are not going to use a custom ROM, then you will flash a CSC package from Odin, but again, first check to see if you must use your phone for 5 minutes from the SIM local.
Click to expand...
Click to collapse
I installed firmware SM-A515F EUR from sammobile but is still Service provider ver. in SER but Of Greece EUR CSC has been installed but in the Service provider ver. not change to Greece EUR
how to fix this?
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Related

Upgrading 6.0.1 to 7.0.1 with Odin - Question

Hi guys,
just bought a new Samsung Galaxy S7 (SM-G930F).
Of course I got it with the Android 6.0.1 but I want to upgrade it to 7.
As for now, my build has no OTA updates to 7, but I saw that there's a UK build for Android 7.
Question is... if my build number is G930FXXU1BPLB, can I upgrade it to other build number, as for example to: G930FXXU1DPLT ?
And.. if I can do that... Will I get OTA updates of the future releases? It's important to note that I live in Israel, so what happens if I Install an UK build?
Will it block me to get OTA updates because I'm not from the region?
Thanks!
Everything works, except WifiCalling and VoLTE, if you switch to a british firmware.
So OTA's and the like won't be a problem. It's the same experience as if you were using your current german firmware in Israel.
For OTA's be sure to use the correct CSC file, so it get's changed aswell. DBT/BTU mix stuff won't get you OTA's
Given that i had a problem with restoring WhatsApp's chatlog when switching from 6.0 to 7.0 (which according to google and a post here, i'm the only one to have it), it's still advised to read up on app compatibility.
Also it's advised to do a factory reset after flashing, so everything is reset.
Tekkpriest said:
Everything works, except WifiCalling and VoLTE, if you switch to a british firmware.
So OTA's and the like won't be a problem. It's the same experience as if you were using your current german firmware in Israel.
For OTA's be sure to use the correct CSC file, so it get's changed aswell. DBT/BTU mix stuff won't get you OTA's
Given that i had a problem with restoring WhatsApp's chatlog when switching from 6.0 to 7.0 (which according to google and a post here, i'm the only one to have it), it's still advised to read up on app compatibility.
Also it's advised to do a factory reset after flashing, so everything is reset.
Click to expand...
Click to collapse
Thanks,
So I understand you won't any problems. And I don't really need the WiFi calling.
But about the VoLTE, do you mean that I'll loose the 4G ? Or do you something else?
About the CSC, I have to admit that I don't really know what it is. Is it a file that comes with the files that I should flash?
About the build number, I've just saw that there's a newer build of UK according to sammobile website: G930FXXU1DQB3 (released on the 06/02/2017), and the G930FXXU1DPLT (released on 16/01/2017) that I've stated in the original topic.
Is there a difference between them, should I go with the G930FXXU1DQB3 ?
Thanks again.
Semek said:
Thanks,
So I understand you won't any problems. And I don't really need the WiFi calling.
But about the VoLTE, do you mean that I'll loose the 4G ? Or do you something else?
About the CSC, I have to admit that I don't really know what it is. Is it a file that comes with the files that I should flash?
About the build number, I've just saw that there's a newer build of UK according to sammobile website: G930FXXU1DQB3 (released on the 06/02/2017), and the G930FXXU1DPLT (released on 16/01/2017) that I've stated in the original topic.
Is there a difference between them, should I go with the G930FXXU1DQB3 ?
Thanks again.
Click to expand...
Click to collapse
VoLTE is the "new" standard for calling.
Normally, when you call someone and don't use VoLTE, you fall back to the local 2G/3G network, which is slower and has lesser quality. Since many providers, atleast in my country, haven't completely switched over (for example prepaid customers still have the outdated 2G/3G calling), you should not notice much of a difference, since it's the same call quality as in 2013 for example. You will still understand people, as they will understand you.
4G / LTE data connectivity is unaffected by it and works without any problems, regardless of country etc. , unless you travel to america and use a local providers sim card there, where you might need the Snapdragon variant of the S7.
That being said, i flashed the newest firmware (DQB3) and it works flawlessly, except afromentioned WhatsApp problem. The only difference is, the update dated to the end of january is included, which fixes some stuff.
A CSC file contains country specific settings, like frequencies used, APN's and even carrier brandings are found in this file, which is why they might differ in size for different regions/carriers.
Because of that, VoLTE and wifi calling might not work, since, in this case, they use the BTU networks standard and you are not in the UK but Israel, aswell as probably not using a british provider.
Anyways back to your question:
There are 2 CSC files, the ROM`s CSC one and a HOME_CSC.
To receive OTA's, you will need to flash the normal CSC and not the HOME one. This will reset and wipe your device (backup all important stuff beforehand) and you get a device "fresh out of the box" bought in the UK.
The HOME CSC does not wipe your memory, but you won't receive OTA updates aswell, since your device hasn't changed it CSC and thus "is not an original BTU device".
So if you go down that route, which is perfectly acceptable and should not make any problems, you will have to flash updates manually via Odin.
Tekkpriest said:
VoLTE is the "new" standard for calling.
Normally, when you call someone and don't use VoLTE, you fall back to the local 2G/3G network, which is slower and has lesser quality. Since many providers, atleast in my country, haven't completely switched over (for example prepaid customers still have the outdated 2G/3G calling), you should not notice much of a difference, since it's the same call quality as in 2013 for example. You will still understand people, as they will understand you.
4G / LTE data connectivity is unaffected by it and works without any problems, regardless of country etc. , unless you travel to america and use a local providers sim card there, where you might need the Snapdragon variant of the S7.
That being said, i flashed the newest firmware (DQB3) and it works flawlessly, except afromentioned WhatsApp problem. The only difference is, the update dated to the end of january is included, which fixes some stuff.
A CSC file contains country specific settings, like frequencies used, APN's and even carrier brandings are found in this file, which is why they might differ in size for different regions/carriers.
Because of that, VoLTE and wifi calling might not work, since, in this case, they use the BTU networks standard and you are not in the UK but Israel, aswell as probably not using a british provider.
Anyways back to your question:
There are 2 CSC files, the ROM`s CSC one and a HOME_CSC.
To receive OTA's, you will need to flash the normal CSC and not the HOME one. This will reset and wipe your device (backup all important stuff beforehand) and you get a device "fresh out of the box" bought in the UK.
The HOME CSC does not wipe your memory, but you won't receive OTA updates aswell, since your device hasn't changed it CSC and thus "is not an original BTU device".
So if you go down that route, which is perfectly acceptable and should not make any problems, you will have to flash updates manually via Odin.
Click to expand...
Click to collapse
Wow, thanks for the reply!
I just want to be sure before I do it...
Are those the only options I need to check & load in Odin for flashing the new ROM?
Because I have few more files in the folder like BL and CP.
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So are AP and CSC enough?
Thanks!
Semek said:
Wow, thanks for the reply!
I just want to be sure before I do it...
Are those the only options I need to check & load in Odin for flashing the new ROM?
Because I have few more files in the folder like BL and CP.
So are AP and CSC enough?
Thanks!
Click to expand...
Click to collapse
Hi ahi,
I live in Israel too and flashed the UK firmware on my s7.
I install everything that was packed in the rar you download.
Nougat is awesome for our phone.
OrenGazala said:
Hi ahi,
I live in Israel too and flashed the UK firmware on my s7.
I install everything that was packed in the rar you download.
Nougat is awesome for our phone.
Click to expand...
Click to collapse
Hi Oren,
It's great to hear that everything works smoothly from someone from my country!
So, just to make sure, before I do anything stupid (or not, heh)... in Odin you selected & loaded the: BL, AP, CP and CSC?
Toda
Semek said:
Hi Oren,
It's great to hear that everything works smoothly from someone from my country!
So, just to make sure, before I do anything stupid (or not, heh)... in Odin you selected & loaded the: BL, AP, CP and CSC?
Toda
Click to expand...
Click to collapse
Select everything. Bootloader is very important for example. Otherwise you most likely will brick your phone
Anyways enjoy Nougat, i'm actually doing the same process again now, to see if i can get my WA Backup to work somehow.
Tekkpriest said:
Select everything. Bootloader is very important for example. Otherwise you most likely will brick your phone
Anyways enjoy Nougat, i'm actually doing the same process again now, to see if i can get my WA Backup to work somehow.
Click to expand...
Click to collapse
Just finished successfully the process and I'm on 7.0 now
Thank you, you've been very helpful. About the Whatsapp, looks like it restoring fine for me, or at least in the process (it's still downloading the media, the conversation were ok).
Semek said:
Just finished successfully the process and I'm on 7.0 now
Thank you, you've been very helpful. About the Whatsapp, looks like it restoring fine for me, or at least in the process (it's still downloading the media, the conversation were ok).
Click to expand...
Click to collapse
Very nice, good to know that it works for you.
Currently doing a downgrade with full wipe to 6.0.1 and then update via OTA. Let's see if that fixes it. Otherwise i have to start clean
Anyways, again enjoy Nougat. Should run very good out of the box
Semek said:
Just finished successfully the process and I'm on 7.0 now
Thank you, you've been very helpful. About the Whatsapp, looks like it restoring fine for me, or at least in the process (it's still downloading the media, the conversation were ok).
Click to expand...
Click to collapse
Hey,
I'm happy to know that everything works fine.
Enjoy!
Guys, what about Samsung Pay and Android Pay? Are they working fine? I am on XSA. Australia has Samsung pay and Android Pay working.
Sent from my SGP521 using XDA-Developers Legacy app
I was on vodafone phone with there bloatware so I flashed btu with csc not home csc once I flashes it wiped cache and reset phone then when it loaded up I got the new ota patch for nougat plus I've also got wifi calling.
---------- Post added at 07:07 PM ---------- Previous post was at 07:03 PM ----------
Just a question can some confirm if using stock Samsung browser when keyboard comes up but prodictive text don't work. But when using chrome it works?
I've got a question too. I would like to change my 6.0.1 on 7.0, also British stuff but I'm a little bit concerned about mixing XEO and BTU. Is it possible to mix 6.0.1 HOME_CSC XEO (latest) with 7.0 British BTU + PIT file from the 7.0 BTU Home (I would like to make factory reset and have my native CSC file)? Does it make difference to take PIT file from 6.0.1 or 7.0 Home file either?
venki5star said:
Guys, what about Samsung Pay and Android Pay? Are they working fine? I am on XSA. Australia has Samsung pay and Android Pay working.
Sent from my SGP521 using XDA-Developers Legacy app
Click to expand...
Click to collapse
For Samsung Pay, i can't confirm, but since Android Pay definitely works, Samsung Pay should work aswell, if you did not trigger Knox etc.
mimo2008 said:
I was on vodafone phone with there bloatware so I flashed btu with csc not home csc once I flashes it wiped cache and reset phone then when it loaded up I got the new ota patch for nougat plus I've also got wifi calling.
---------- Post added at 07:07 PM ---------- Previous post was at 07:03 PM ----------
Just a question can some confirm if using stock Samsung browser when keyboard comes up but prodictive text don't work. But when using chrome it works?
Click to expand...
Click to collapse
Just tested it, i have predictive text in either browser, or anywhere i do have a keyboard.
MalfiRaggraClan said:
I've got a question too. I would like to change my 6.0.1 on 7.0, also British stuff but I'm a little bit concerned about mixing XEO and BTU. Is it possible to mix 6.0.1 HOME_CSC XEO (latest) with 7.0 British BTU + PIT file from the 7.0 BTU Home (I would like to make factory reset and have my native CSC file)? Does it make difference to take PIT file from 6.0.1 or 7.0 Home file either?
Click to expand...
Click to collapse
You can mix it, but personally, i advice against it. Might reduce battery life, you will have to flash every update manually, since OTA does not work with a mix of XEO/BTU.
Also, since XEO and BTU share a common CSC file (they are OXA's, multipurpose CSC's) in most nougat roms around, you might need to root anyway to completely switch over, if a repartition + factory / cache reset won't work.
So to summarize, yes it's possible to use the HOME_CSC to avoid switching your CSC and wiping your phone. It's also possible to stay on a 6.0.1 CSC, but! there might be problems later.
If possible always do a fresh install and if your phone runs well currently, why not stay on Marshmallow? Depending on the current OTA release, which you might have to look up for your country, it might be better to wait a bit. Personally for me, it'd be a complete switch over, since i am too lazy to flash every update manually.
That being said, you won't need a PIT file going from 6.0.1 to 7.0, since it is included in the CSC. Pit files might be useful, if you want to downgrade and in some other cases, but not if you just want to upgrade. They include repartition infos, which are important, if you don't have a "4 file flash" (yucks, my english for explaining it better, sorry).
Personally for me, it'd be a complete switch over, since i am too lazy to flash every update manually.
Click to expand...
Click to collapse
Yeah, but that wouldn't be a problem for me, cuz I've been using custom ROMs manual flashing on my old fellow Galaxy S4, whenever update was avaiable but anyway, who doesn't want to make things easier?
So to summarize, yes it's possible to use the HOME_CSC to avoid switching your CSC and wiping your phone. It's also possible to stay on a 6.0.1 CSC, but! there might be problems later.
Click to expand...
Click to collapse
So what are the main drawbacks using BTU CSC that the XEO? Will it, paradoxically, drain more battery because of incompatibility of GSM frequencies?
If possible always do a fresh install and if your phone runs well currently, why not stay on Marshmallow?
Click to expand...
Click to collapse
Marshmallow works perfectly for my phone, especially for battery and performance but obviously, I'm curious whether Nougat would it make more perfect
Depending on the current OTA release, which you might have to look up for your country, it might be better to wait a bit.
Click to expand...
Click to collapse
Samsung consultant said to me that they EVEN DON'T KNOW when 7.0 will be relased for our country. That made me angry and I said to myself that I will take the matters into one’s own hands.
Pit files might be useful, if you want to downgrade and in some other cases, but not if you just want to upgrade. They include repartition infos, which are important, if you don't have a "4 file flash" (yucks, my english for explaining it better, sorry).
Click to expand...
Click to collapse
So, If I have only AP file, I will need to use PIT file for downgrading also, right?
And very well explained issue, it really helps me a lot in a certain level of understanding the given topic
MalfiRaggraClan said:
Yeah, but that wouldn't be a problem for me, cuz I've been using custom ROMs manual flashing on my old fellow Galaxy S4, whenever update was avaiable but anyway, who doesn't want to make things easier?
So what are the main drawbacks using BTU CSC that the XEO? Will it, paradoxically, drain more battery because of incompatibility of GSM frequencies?
Marshmallow works perfectly for my phone, especially for battery and performance but obviously, I'm curious whether Nougat would it make more perfect
Samsung consultant said to me that they EVEN DON'T KNOW when 7.0 will be relased for our country. That made me angry and I said to myself that I will take the matters into one’s own hands.
So, If I have only AP file, I will need to use PIT file for downgrading also, right?
And very well explained issue, it really helps me a lot in a certain level of understanding the given topic
Click to expand...
Click to collapse
Sorry for the late reply, work called.
Usually a BTU won't draw more battery or anything, since frequencies mostly are standard in every country. It's more like saved APN's etc. (which you can change manually via your phone's settings menu anyways). But as previously mentioned to the original poster, you can depending on where you live, loose out on VoLTE and Wifi-Calling, since those a carrier specific and usually not included in an unbranded ROM. If those are important to you, you probably want to stick with your current ROM, even if i do understand that new things are always fun. Even i did not wait for my carrier..
But having OTA updates and stuff like that is convenient, otherwise you'd have to flash every update like this one, which is why i recommend using a full BTU firmware, if you really wanna do it. Well, you don't have to flash it manually.. but it won't change since OTA updates are CSC based. So for example if Android 7.1 or another security patch will come out, you will need to wait until your XEO (Poland, i presume?) firmware get's the corresponding update, which according to you might take ages, since the original Nougat is not even out yet.
If you only have an AP file, i recommend using updato.com / samfirmware to download the current image of the BTU. Since you will need Bootloader and Modem files aswell (BL, CP respectively), aswell as the CSC file. I have checked though, your current CSC is included in the OXA (multipurpose CSC) of the BTU. So you might wanna flash a non BTU image first to change the CSC to something not included in the BTU one. Otherwise you will need root access to change it manually and this triggers Knox as we all know and thus your warranty is gone. And if you flash a non BTU image, be sure to factory reset / clear cache via recovery mode after installing and then let it boot normally, so the CSC change will take effect, afterwards flash the BTU image will all files and do the same. Be sure to backup your data beforehand, since they will get lost and do NOT use the HOME_CSC file. This one is for not changing the CSC at all and will retain your data. Use the ROM's CSC. Also always check the rom for your model, i have seen people who used a 935F (which is the edge) ROM on a flat S7 (which is 930F in europe mostly). But that's why i highlight it.
If you have further questions, i'll answer them to the best of my abilities
Oh and i almost forgot, you don't need a pit file . It's really just for more engineerical purposes as explained in ODIN. Current Marshmallow and Nougat Roms consist of 4 parts, which include the corresponding PIT.
I highly recommend not using the PIT file, if you don't know what it entails (you will need to look on the internet for it, since it will be quite lengthy if i explain). In short, as long as an update does not use a different partition layout and / or you mess up your partitions by yourself, you just don't need it. And doing afromentioned, would require extensive knowledge about Android anyways. As long as you don't root and modify your system yourself, you most likely will always be fine. And since rooting does have it's drawback (like some Apps not working due to security, Samsung warranty void etc), i'd not recommend it anyways, unless you are experienced
Sorry for the late reply, work called.
But as previously mentioned to the original poster, you can depending on where you live, loose out on VoLTE and Wifi-Calling, since those a carrier specific and usually not included in an unbranded ROM.
Click to expand...
Click to collapse
Np
Doesn't matter for me, I don't use them either, because I am on unbranded one from the very beginning
XEO (Poland, i presume?)
Click to expand...
Click to collapse
Yes, exactly.
If you only have an AP file, i recommend using updato.com / samfirmware to download the current image of the BTU.
Click to expand...
Click to collapse
No, I have 4 file package from Sammobile, but the previous question was about what could I do when I have only AP file. But I know this now
Since you will need Bootloader and Modem files aswell (BL, CP respectively), aswell as the CSC file. I have checked though, your current CSC is included in the OXA (multipurpose CSC) of the BTU. So you might wanna flash a non BTU image first to change the CSC to something not included in the BTU one.
Click to expand...
Click to collapse
For Example?? And If I want to make full switch over towards BTU, should I really need to flash something non - BTU or just pure BTU (with BTU CSC file)? And what if my carrier will release XEO 7.0 stuff... then would I need to flash the same non BTU/XEO stuff to change CSC again?
Oh and i almost forgot, you don't need a pit file . It's really just for more engineerical purposes as explained in ODIN.
Click to expand...
Click to collapse
I have used the PIT file when I was debranding, that is why I was asking about extended purposes Obviously, I haven't got extensive knowledge about android but I know just the basics (the reason why it looks like that is I am not programming anything, otherwise I would know more, much more).
And, using occasion... Since S7 ownership I was wondering how root would affect function "safe start". Would it be possible to bypass this function COMPLETELY after launch, on the rooted phone (For example: if someone could steal it and unluckily, had extensive android knowledge could bypass launch/start password, and, the worst, security lock, when my phone is fully rooted)?

Changing CSC without root

Is it possible to change CSC with the end result being unrooted? By this I mean if it requires me to root in order to change CSC that is okay, but then can I unroot while keeping the CSC I changed to? The reason I ask is because I want to be able to use banking and other apps (I've read that root prevents these apps from working) but at the same time I want to have wifi calling and voLTE for my carrier.
the_OZONE said:
Is it possible to change CSC without root? The reason I ask is because I want to be able to use banking and other apps (I've read that root prevents these apps from working) but at the same time I want to have wifi calling and voLTE for my carrier.
Click to expand...
Click to collapse
Right, without root, all you need to do, visit sammobile and download then flash the compatible image from the carrier you want to switch to. However, be aware, of hardware limitations i.e.) you cannot flash a snapdgragon fw on a exynos phone for example.
Now if you had root on the other hand, you can do this in a matter of mins and not loose any files.
cantenna said:
Right, without root, all you need to do, visit sammobile and download then flash the compatible image from the carrier you want to switch to. However, be aware, of hardware limitations i.e.) you cannot flash a snapdgragon fw on a exynos phone for example.
Now if you had root on the other hand, you can do this in a matter of mins and not loose any files.
Click to expand...
Click to collapse
I wanted to use a CSC that allows AT&T wifi calling and voLTE. This thread https://forum.xda-developers.com/ga...ility-flashable-csc-selection-v1-0-0-t3605264 shows that it is possible to flash USA Multi-CSC using TWRP and root, which includes AT&T. So is it possible to have this CSC on the G955F while being unrooted? If it requires me to root and then unroot in order to change the CSC, I would be okay with that too as long as the CSC stays.
Based on what you said, I'm assuming the answer is no because the AT&T variant is the snapdragon variant, so I'm guessing that means the CSC wouldn't be supported in exynos unless flashed via root and then remaining rooted. Correct?
if you have Exynos phone you got root as an option
Sent from my SM-G955F using Tapatalk
cantenna said:
if you have Exynos phone you got root as an option
Click to expand...
Click to collapse
Right, but the problem is that with root I won't have access to banking and other apps. So I was hoping maybe I'd be able to root, flash the CSC, then unroot and find a way to keep the CSC. Basically, on exynos, I want to be able to have the AT&T CSC and banking apps at the same time.
the_OZONE said:
Right, but the problem is that with root I won't have access to banking and other apps. So I was hoping maybe I'd be able to root, flash the CSC, then unroot and find a way to keep the CSC. Basically, on exynos, I want to be able to have the AT&T CSC and banking apps at the same time.
Click to expand...
Click to collapse
i have the 955FD with an ATT CSC and Wifi calling isn't working and i can't visually tell if VoLTE is working. next step is to get an ATT imei assigned to my number to see if that fixes it. bottom line, changing to ATT CSC is not guaranteed to get the aforementioned services working on your 955F.
Root it , fix it and get voLTE then use hideroot to hide root on that banking apps .
Hello !
You can change CSC for S8/S8+
1. Download combination rom for your S8/S8+
2. Download S8/S8+ rom with 4 file
3. Open Odin and Flash with combination ROM (AP) + CSC (rom file HOME_CSC.........) (*don't use CSC_................)
4. Wait for phone boot up, in Factory Imei input *#243203855#, anh chose you need csc --> install, phone will reset.......
5. Now Flash your phone with your coutry rom.
Done !
p/s: I buy S8+ in cambodia with CAM csc, use this method successful change to XXV csc.
Seach with Google:
COMBINATION_FA70_G955FDXU1AQD1_CL11075180_QB130870 97_REV00_user_mid_noship.tar
COMBINATION_FA70_G950FDXU1AQD1_CL11075180_QB130870 97_REV00_user_mid_noship.tar
ngominh said:
Hello !
You can change CSC for S8/S8+
1. Download combination rom for your S8/S8+
2. Download S8/S8+ rom with 4 file
3. Open Odin and Flash with combination ROM (AP) + CSC (rom file HOME_CSC.........) (*don't use CSC_................)
4. Wait for phone boot up, in Factory Imei input *#243203855#, anh chose you need csc --> install, phone will reset.......
5. Now Flash your phone with your coutry rom.
Done !
p/s: I buy S8+ in cambodia with CAM csc, use this method successful change to XXV csc.
Seach with Google:
COMBINATION_FA70_G955FDXU1AQD1_CL11075180_QB130870 97_REV00_user_mid_noship.tar
COMBINATION_FA70_G950FDXU1AQD1_CL11075180_QB130870 97_REV00_user_mid_noship.tar
Click to expand...
Click to collapse
What do you mean with "Factory Imei"? It's a menu or something? In phone dialer that code doesn't work...
Same question here what does "Factory Imei"? It's a menu or something?
Also in step 3 assuming you have to put the CSC of the new CSC area you want. Also usually you flash CSC and not HOME_CSC. In this case it is reverse, any reason why ?
i have same objective as yours, i have SM-G9550 which is hongkong variant (non-root) and it is snap with 6gb pf ram and 128gb of rom. I want to change CSC to Thailand (THL) to use VOLTE and VOWIFI. But problem is Thai variant is EXYNOS paired with 4gb of ram and 64gb of rom. So is there anyway to work this without root as i need to use Knox and samsung pay so root will deatroy it correct?
ngominh said:
Hello !
You can change CSC for S8/S8+
1. Download combination rom for your S8/S8+
2. Download S8/S8+ rom with 4 file
3. Open Odin and Flash with combination ROM (AP) + CSC (rom file HOME_CSC.........) (*don't use CSC_................)
4. Wait for phone boot up, in Factory Imei input *#243203855#, anh chose you need csc --> install, phone will reset.......
5. Now Flash your phone with your coutry rom.
Done !
p/s: I buy S8+ in cambodia with CAM csc, use this method successful change to XXV csc.
Seach with Google:
COMBINATION_FA70_G955FDXU1AQD1_CL11075180_QB130870 97_REV00_user_mid_noship.tar
COMBINATION_FA70_G950FDXU1AQD1_CL11075180_QB130870 97_REV00_user_mid_noship.tar
Click to expand...
Click to collapse
Don't talk RUBBISH!!!
This is NOT possible without root!
henklbr said:
Don't talk RUBBISH!!!
This is NOT possible without root!
Click to expand...
Click to collapse
No it's all possible check out the carrier switch thread in the s8 forums
Sent from my SM-G955U using XDA-Developers Legacy app
You could try from the phone dialer: *#243203855# that's to change CSC, keep in mind it will reset your phone so make a backup first. The screenshot shows CSC for Canada since I'm in Canada.
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Sent from my SM-G955W using XDA-Developers Legacy app
Cyclops1055 said:
You could try from the phone dialer: *#243203855# that's to change CSC, keep in mind it will reset your phone so make a backup first. The screenshot shows CSC for Canada since I'm in Canada.
Click to expand...
Click to collapse
This code doesn't work on my Exynos, Can you help me please I want to change it.
the_OZONE said:
Is it possible to change CSC with the end result being unrooted? By this I mean if it requires me to root in order to change CSC that is okay, but then can I unroot while keeping the CSC I changed to? The reason I ask is because I want to be able to use banking and other apps (I've read that root prevents these apps from working) but at the same time I want to have wifi calling and voLTE for my carrier.
Click to expand...
Click to collapse
You can change the CSC region successfully using @ngominh's method.
But you have to find "The Combination" file for your phone to do it and that
is usually a "Paid" firmware which is different than your normal stock firmware!
You find that and you can change the CSC successfully!
To change csc if you are on multi firmware
Type *#272*IMEI#
It will show list of available csc
Then choose the csc you want
It will factory reset device
Back up all files and try
yash92duster said:
To change csc if you are on multi firmware
Type *#272*IMEI#
It will show list of available csc
Then choose the csc you want
It will factory reset device
Back up all files and try
Click to expand...
Click to collapse
I'm on multi csc but this code does nothing on my Exynos S8+.
samcex said:
I'm on multi csc but this code does nothing on my Exynos S8+.
Click to expand...
Click to collapse
Type *#272*IMEI#
in IMEI type your imei code 12445765xxxxxx934934
it works fine for me
it will show a list and after selecting any csc it will factory reset
i tried and only gave a way to change csc
you try again
i dont know what you typed
yash92duster said:
Type *#272*IMEI#
in IMEI type your imei code 12445765xxxxxx934934
it works fine for me
it will show a list and after selecting any csc it will factory reset
i tried and only gave a way to change csc
you try again
i dont know what you typed
Click to expand...
Click to collapse
First of all how can I confirm I'm on multi csc, would you help me troubleshoot this ?

Samsung SM-G930S... all the same as

I have a Samsung SM-G930S... which is Exynos 8890.
Can I then put on any ROM from any other Exynos 8890 based phone? And all will be well?
All will be well if you enjoy a brick
Only flash stock ROMs for your model S7 (G930S)
Bootloaders etc are different between models, it doesn't just depend on the chipset
JeffDC said:
I have a Samsung SM-G930S... which is Exynos 8890.
Can I then put on any ROM from any other Exynos 8890 based phone? And all will be well?
Click to expand...
Click to collapse
If custom roms, then yes. I have a G930L. Same korean variant as S & K.
012512 said:
If custom roms, then yes. I have a G930L. Same korean variant as S & K.
Click to expand...
Click to collapse
So then you stick to L, S and K supported custom ROMS? ...
I see quite a few custom ROMs for the G930F version but that would unsupported/dangerous?
JeffDC said:
I have a Samsung SM-G930S... which is Exynos 8890.
Can I then put on any ROM from any other Exynos 8890 based phone? And all will be well?
Click to expand...
Click to collapse
JeffDC said:
So then you stick to L, S and K supported custom ROMS? ...
I see quite a few custom ROMs for the G930F version but that would unsupported/dangerous?
Click to expand...
Click to collapse
That would be fine. Example custom rom for korean variants are superman rom, superstock rom. I'm currently using superman rom
012512 said:
That would be fine. Example custom rom for korean variants are superman rom, superstock rom. I'm currently using superman rom
Click to expand...
Click to collapse
012512, thank you for your answer. I will look up those two ROMS. This rooting of the Samsung phones seems a bit more complicated than the last time I was rooting, the LG-G3 and the OnePlus One, or is it my imagination.... or just getting more-forgetful?
When you look for ROM's compatible for your phone, are you looking specifically that they are for the SM-G930S, or exactly what are you looking for? Other non-Korean variants that will work?
Thanks again.
JeffDC said:
012512, thank you for your answer. I will look up those two ROMS. This rooting of the Samsung phones seems a bit more complicated than the last time I was rooting, the LG-G3 and the OnePlus One, or is it my imagination.... or just getting more-forgetful?
When you look for ROM's compatible for your phone, are you looking specifically that they are for the SM-G930S, or exactly what are you looking for? Other non-Korean variants that will work?
Thanks again.
Click to expand...
Click to collapse
Any custom tw roms will be fine. Take note that aosp roms are no longer supported for korean variants.
S7 korean variants are g93xK/L/S
So if you install a g930/5F custom tw rom, you can install it on your phone as long as you don't install the stock g93xF/FD roms.
Also, there is a separate twrp for korean variants in order to install a custom tw roms. Please refer "heroltekor" twrp.
---------- Post added at 08:27 PM ---------- Previous post was at 08:21 PM ----------
Example supported rom for korean variants:
[ROM][STABLE][N][7.0][DQIC][03.10.17][SM-G930F/FD/K/L/S/W8] SuperMan-Rom V2.7.0
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Excellent information, thank you. By trial and error, before picking up your post, I put on an Exynos Infinity 8+ from v8. It seemed to flash fine using the default Bixby CSC indicated in the setup. I did this last night so have not had time to chck out all things, however, cell phone, messaging, bluetooth all work just fine. I'm about to clean install the v17 of the Infinity in a few minutes. TWRP is a a** saver and my friend.
Thank you, again.
Jeff
JeffDC said:
Excellent information, thank you. By trial and error, before picking up your post, I put on an Exynos Infinity 8+ from v8. It seemed to flash fine using the default Bixby CSC indicated in the setup. I did this last night so have not had time to chck out all things, however, cell phone, messaging, bluetooth all work just fine. I'm about to clean install the v17 of the Infinity in a few minutes. TWRP is a a** saver and my friend.
Thank you, again.
Jeff
Click to expand...
Click to collapse
Hi,
I bought Samsung Galaxy S7 SM-G930S from the store which was converted into SM-G930FD as I was not having Korean sick apps installed in my mobile and there was no Korean logo of "BANDLTE" while switching off and switching on, when I saw my phone model name it was SM-G930FD and was supporting dual sim both had a same IMEI. But when I restarted my mobile after getting home phone got locked with this message "Custom Binary Blocked By FRP Lock" so decided to got into boot menu there I saw SMG930S written so i flashed mobile with SKT Korean firmware of smg930s but when I installed it I got tons of Korean apps and getting "BANDLTE" logo while switching off and on my phone I lost that Samsung Original logo which I had when my phone was converted into smg930fd. Now I want to switch back to Smg930fd settings/firmware so get rid of these Korean apps and Model to be appear as SMG930FD as the back of my Samsung Galaxy s7 glass has a phone model SMG930FD. I don't know Shopkeeper scammed me or what I told him I wanted to buy SMG930FD but he gave me this converted phone Kindly help me to get back to SMG930FD firmware/settings
shazmobile said:
Hi,
I bought Samsung Galaxy S7 SM-G930S from the store which was converted into SM-G930FD as I was not having Korean sick apps installed in my mobile and there was no Korean logo of "BANDLTE" while switching off and switching on, when I saw my phone model name it was SM-G930FD and was supporting dual sim both had a same IMEI. But when I restarted my mobile after getting home phone got locked with this message "Custom Binary Blocked By FRP Lock" so decided to got into boot menu there I saw SMG930S written so i flashed mobile with SKT Korean firmware of smg930s but when I installed it I got tons of Korean apps and getting "BANDLTE" logo while switching off and on my phone I lost that Samsung Original logo which I had when my phone was converted into smg930fd. Now I want to switch back to Smg930fd settings/firmware so get rid of these Korean apps and Model to be appear as SMG930FD as the back of my Samsung Galaxy s7 glass has a phone model SMG930FD. I don't know Shopkeeper scammed me or what I told him I wanted to buy SMG930FD but he gave me this converted phone Kindly help me to get back to SMG930FD firmware/settings
Click to expand...
Click to collapse
Same case for me, one thing different is that i bought the phone used from some random guy on the internet, i tried OTA to get Oreo as the phone had Nougat but it says no update available for me, 4G didn't work on my netword too, then when i saw samsung health not working i thought knox probably is voided when i checked odin i found its a 930S instead of the FD.
I do believe there is ways to convert to the 930F/FD by flashing select flash, using a box/dongle or some paid tool like R3 or Chimera or whatever you can get your hands on. I work on a repair workshop, have those i mentioned above and i saw this feature where you can actually select which part you wanna flash from a specified md5 file, i didn't test it on any phone yet, but i think they flash the bootloader of the real variant 930X but they put the AP of the international version 930F/FD, from the AP file you can also select what to flash and what to not, so you can actually only flash system.img of the XXXF version and the rest can be from the original variant. Never tested it but i think that's how it works.
My advice is to return the phone, that's what i'm going to do as i just bought it today (i was a happy dumbea** already bought few cases and whatnot...) the phone is still good and all functions perfectly, 4G might not work on some networks due to the different bands but everything else is the same! there is a big chance you can get the international firmware on it and be happy with it, but there is always a chance of breaking it too! or getting a network lock which i guarantee you, you're not going to like...
I don't know if this type of phones is refurbished, but i really hate that Samsung actually does that or allow this to be possible (happened before with an S6), same goes for LG too (Had a v10 korean model with Tmobile firmware).
Again, my advice, return it!!
Okay so here is an update on my case, might help anyone. if you did read my previous reply you'll know that i bought the phone from someone online, contacted him back he didn't block me nor ignore me, he even called me himself, but he bought a ps4 with my money and can't go back. Still waiting to see if he can get the money back, but what i was thinking is to ask for few dollars back just cause 4g network and dual sim functionality doesn't work on the phone, again its a 930S with 930FD firmware, after confirming and playing around its actually 930F not FD so i think i can get back the dual sim function. I'll be flashing the phone if i got no money back, try to get FD or 4G working on it and sell it for maximum price, then use the extra money i'll take from him to sorta re-gain my money and try to find a better one.
If i ended up flashing this 930S to a 930F or FD i'll post the method and the result and link it in another reply for anyone interested.
Wish me luck.
Salazar33 said:
Okay so here is an update on my case, might help anyone. if you did read my previous reply you'll know that i bought the phone from someone online, contacted him back he didn't block me nor ignore me, he even called me himself, but he bought a ps4 with my money and can't go back. Still waiting to see if he can get the money back, but what i was thinking is to ask for few dollars back just cause 4g network and dual sim functionality doesn't work on the phone, again its a 930S with 930FD firmware, after confirming and playing around its actually 930F not FD so i think i can get back the dual sim function. I'll be flashing the phone if i got no money back, try to get FD or 4G working on it and sell it for maximum price, then use the extra money i'll take from him to sorta re-gain my money and try to find a better one.
If i ended up flashing this 930S to a 930F or FD i'll post the method and the result and link it in another reply for anyone interested.
Wish me luck.
Click to expand...
Click to collapse
Bro I found a way you can download custom rom of smg930fd by installing TWRP or CF auto root method in this way your model will I guess automatically turn into dual sim supported and model will be shown as smg930fd.
I also have a 930S. How to >Bro I found a way you can download custom rom of smg930fd by installing TWRP or CF auto root method in this way your model will I guess automatically turn into dual sim supported and model will be shown as smg930fd.<
shazmobile said:
Bro I found a way you can download custom rom of smg930fd by installing TWRP or CF auto root method in this way your model will I guess automatically turn into dual sim supported and model will be shown as smg930fd.
Click to expand...
Click to collapse
Hi,
I'm facing the same situation. I bought G930FD dual sim but later I found that it's actually G930S.
Now I want to install its stock firmware which is Android 8.0 by SK Telecom, Korea
Can you please tell me:
1. Changing the ROM will covert the phone into Single SIM version?
2. The phone will lock to Korean network only?
3. This will change everything into Korean?
Cheers
[email protected] said:
Hi,
I'm facing the same situation. I bought G930FD dual sim but later I found that it's actually G930S.
Now I want to install its stock firmware which is Android 8.0 by SK Telecom, Korea
Can you please tell me:
1. Changing the ROM will covert the phone into Single SIM version?
2. The phone will lock to Korean network only?
3. This will change everything into Korean?
Cheers
Click to expand...
Click to collapse
1. Yes it will!
2. This one depends if your phone is unlocked or not, most of the time it is unlocked.
3. The firmware is all the same Korean, US, Canada or international the biggest difference will be in bloatwares, as I had that phone before I can tell you, you'll have many SK telecom apps.
4. (this one I added) If you flash your phone with the original Korean firmware which is by downloading the firmware for the S7 SM-G930s from Sammobile and flashing it using ODIN, going back is quite hard! So if you're network locked or you want the dual sim functionality back, you'll need a special tool/dungle called Z3x to make the thing work!
5. (I also added this) To unlock the phone and make it work on all networks there is a process called "Patching the certificate" and it requires an unlocked bootloader which probably you already have, and root! and most importantly! it only works on Android Nougat. Basically what Im saying you can only have dual sim function in Android Nougat with the 930FD firmware, also if you flash the original firmware and its network locked, if you wanna go back you'll need that tool I mentioned and again, only Android Nougat.
Had that phone before, still have the firmware backup for the 930StoFD also. I can help if needed.
Salazar33 said:
1. Yes it will!
2. This one depends if your phone is unlocked or not, most of the time it is unlocked.
3. The firmware is all the same Korean, US, Canada or international the biggest difference will be in bloatwares, as I had that phone before I can tell you, you'll have many SK telecom apps.
4. (this one I added) If you flash your phone with the original Korean firmware which is by downloading the firmware for the S7 SM-G930s from Sammobile and flashing it using ODIN, going back is quite hard! So if you're network locked or you want the dual sim functionality back, you'll need a special tool/dungle called Z3x to make the thing work!
5. (I also added this) To unlock the phone and make it work on all networks there is a process called "Patching the certificate" and it requires an unlocked bootloader which probably you already have, and root! and most importantly! it only works on Android Nougat. Basically what Im saying you can only have dual sim function in Android Nougat with the 930FD firmware, also if you flash the original firmware and its network locked, if you wanna go back you'll need that tool I mentioned and again, only Android Nougat.
Had that phone before, still have the firmware backup for the 930StoFD also. I can help if needed.
Click to expand...
Click to collapse
Thanks a lot mate for such a detailed reply
---------- Post added at 07:02 PM ---------- Previous post was at 06:29 PM ----------
Salazar33 said:
1. Yes it will!
2. This one depends if your phone is unlocked or not, most of the time it is unlocked.
3. The firmware is all the same Korean, US, Canada or international the biggest difference will be in bloatwares, as I had that phone before I can tell you, you'll have many SK telecom apps.
4. (this one I added) If you flash your phone with the original Korean firmware which is by downloading the firmware for the S7 SM-G930s from Sammobile and flashing it using ODIN, going back is quite hard! So if you're network locked or you want the dual sim functionality back, you'll need a special tool/dungle called Z3x to make the thing work!
5. (I also added this) To unlock the phone and make it work on all networks there is a process called "Patching the certificate" and it requires an unlocked bootloader which probably you already have, and root! and most importantly! it only works on Android Nougat. Basically what Im saying you can only have dual sim function in Android Nougat with the 930FD firmware, also if you flash the original firmware and its network locked, if you wanna go back you'll need that tool I mentioned and again, only Android Nougat.
Had that phone before, still have the firmware backup for the 930StoFD also. I can help if needed.
Click to expand...
Click to collapse
Thank you for such a detailed answer.
Now I'm confused to select a blue pill or red one
At one hand the current OS is outdated and have a very annoying and UN-stopable adware buit-in; but it's dual SIM
and on the other hand I may have an updated and ad-free OS by sacrificing dual SIM functionality
[email protected] said:
Thanks a lot mate for such a detailed reply
---------- Post added at 07:02 PM ---------- Previous post was at 06:29 PM ----------
Thank you for such a detailed answer.
Now I'm confused to select a blue pill or red one
At one hand the current OS is outdated and have a very annoying and UN-stopable adware buit-in; but it's dual SIM
and on the other hand I may have an updated and ad-free OS by sacrificing dual SIM functionality
Click to expand...
Click to collapse
What you can do is install TWRP recovery, you can download it from "twrp.me/Devices" and look for your specific device, backup everything and transfer it to a PC or a memory card, just in case you'd like to go back later, then you can flash the original firmware with Android Oreo and see if you like it more and if its worth dropping the dual sim for! if you don't like it, you just reFlash TWRP as it will be erased, format the partitions and restore the backup, You'll be back with Nougat and dual sim function but the network won't work till you patch the certificate (used to be called repair network), and for that you'll need root, debug enabled, and the z3x. Your issue will probably be that last one, z3x, cause as far as I know you'll need this tool or a similar one to get the network to work again! and just to mention, for some reason, if you erase the dalvik cache or reset the phone, you'll have to patch the certificate again.
Just think it through carefully, I work in a repair shop so I got access to lots of tools, but in your case if you don't, it might be quite hard to get things working again if they break.
Salazar33 said:
What you can do is install TWRP recovery, you can download it from "twrp.me/Devices" and look for your specific device, backup everything and transfer it to a PC or a memory card, just in case you'd like to go back later, then you can flash the original firmware with Android Oreo and see if you like it more and if its worth dropping the dual sim for! if you don't like it, you just reFlash TWRP as it will be erased, format the partitions and restore the backup, You'll be back with Nougat and dual sim function but the network won't work till you patch the certificate (used to be called repair network), and for that you'll need root, debug enabled, and the z3x. Your issue will probably be that last one, z3x, cause as far as I know you'll need this tool or a similar one to get the network to work again! and just to mention, for some reason, if you erase the dalvik cache or reset the phone, you'll have to patch the certificate again.
Just think it through carefully, I work in a repair shop so I got access to lots of tools, but in your case if you don't, it might be quite hard to get things working again if they break.
Click to expand...
Click to collapse
I simply flashed my device using Odin.
These is no more dual SIM functionality but I'm happy to have a latest firmware for S7 and I'm fee from the ads now.
[email protected] said:
I simply flashed my device using Odin.
These is no more dual SIM functionality but I'm happy to have a latest firmware for S7 and I'm fee from the ads now.
Click to expand...
Click to collapse
Happy to hear the issue is solved.
Couple of things you can try for a better experience if you like modding and tweaking.
If you have root and magisk, you can install a module that enhance your camera, it will increase the quality and add some extra features (I just installed it three days ago on my S8+, and the S7 is also supported, love it)
You can install a sound mod that gives you stereo like sound by using the earpeace and the bottom speak together.
Also with root you can patch your host file (Luckypatcher can do that) to block like 99% of the ads within the apps (I can't live without this one, life saver)
And can find tons more withing the forums, these are the ones I tried myself.

Galaxy S7 Verizon phone unlocked

I bought a refurbished phone off ebay with the Verizon logo on it but unlocked version of android without Verizon software and wifi calling. Was phones sold new with the Verizon logo and unlocked version of android? Does the GS7 have wifi calling for Verizon? I can't find the option in the settings. My G6 has wifi calling.
To my best knowledge only the G930U (non carrier) comes from the factory unlocked, if yours is Verizon (G930V) it would have sold new as locked on Verizons firmware, and someone has unlocked it afterwards.
They should have VoLTE and VoWIFI, you just need to make sure your carriers CSC is flashed on the device. If it's refurbished unlocked it's probably on unlocked CSC so won't have any carrier features.
Try getting the latest firmware package for your carrier from sammobile.com or updato.com, and flash ONLY the home_csc via Odin.
All US models are the same SoC, so even if your phone is the Verizon version, you can flash any other carriers firmware.
Beanvee7 said:
To my best knowledge only the G930U (non carrier) comes from the factory unlocked, if yours is Verizon (G930V) it would have sold new as locked on Verizons firmware, and someone has unlocked it afterwards.
They should have VoLTE and VoWIFI, you just need to make sure your carriers CSC is flashed on the device. If it's refurbished unlocked it's probably on unlocked CSC so won't have any carrier features.
Try getting the latest firmware package for your carrier from sammobile.com or updato.com, and flash ONLY the home_csc via Odin.
All US models are the same SoC, so even if your phone is the Verizon version, you can flash any other carriers firmware.
Click to expand...
Click to collapse
Thanks. I have another question. Will the unlocked version be better to have and will it get Oreo sooner then the Verizon version?
I haven't flashed a firmware before. have some links bookmarked for doing this to this phone. I guess i would have to reset my phone and reinstall everything.
I would expect the unlocked version to release first since the firmware doesn't have to go through carriers own changes and verification, but that's only a guess.
But since the SoC is the same, you could technically flash the Oreo firmware from whichever phone gets it first, you'd just have to put up with the carriers bloatware.
There's a good flash guide on updato.com for Odin, from memory if you flash all files using home_csc and it's the same version or newer it doesn't wipe. But I've never tried it that way myself.
here's what my about phone screen shows. Would that be stock or flashed by the seller or whomever? It shows my phone its the U version instead out the V version.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Sent from my SM-G930U using Tapatalk
Boot into download mode and check, the phone information page will be wrong if the phone is flashed with firmware that's different to its stock.
Beanvee7 said:
I would expect the unlocked version to release first since the firmware doesn't have to go through carriers own changes and verification, but that's only a guess.
But since the SoC is the same, you could technically flash the Oreo firmware from whichever phone gets it first, you'd just have to put up with the carriers bloatware.
There's a good flash guide on updato.com for Odin, from memory if you flash all files using home_csc and it's the same version or newer it doesn't wipe. But I've never tried it that way myself.
Click to expand...
Click to collapse
I finally tried to flash the files and using home_csc but it still says 930U and the software is still the BRC1 not the BRC3 and the settings menu isn't the verizon style. I'm not sure what changed. the flash was successful though.
You might find the stock CSC needs to be flashed for those changes, since it triggers a full wipe. I'm not sure the model would change either way.
So long as you get the functionality you want you should be fine.
Beanvee7 said:
You might find the stock CSC needs to be flashed for those changes, since it triggers a full wipe. I'm not sure the model would change either way.
So long as you get the functionality you want you should be fine.
Click to expand...
Click to collapse
It has VOLTE enabled in the settings. is that HD Voice for Verizon?
Yep, from their faq:
"HD Voice is a suite of services enabled by VoLTE (Voice over LTE) technology. VoLTE delivers voice calls over the 4G LTE network instead of the traditional voice network, providing clearer, more natural sounding audio when both parties are using HD Voice-enabled phones that are connected to our 4G LTE network."
Beanvee7 said:
Yep, from their faq:
"HD Voice is a suite of services enabled by VoLTE (Voice over LTE) technology. VoLTE delivers voice calls over the 4G LTE network instead of the traditional voice network, providing clearer, more natural sounding audio when both parties are using HD Voice-enabled phones that are connected to our 4G LTE network."
Click to expand...
Click to collapse
I can't remember if the setting was there before. Does all the unlocked versions have that feature? I don't think i had it before because my phone signal is weak and mom says I cut out when i move around.
I believe it's only there if you have the CSC of a carrier that has it enabled, it's not there on mine at all for example. But I have a G930F which is international, different SoC and firmware.
Beanvee7 said:
I believe it's only there if you have the CSC of a carrier that has it enabled, it's not there on mine at all for example. But I have a G930F which is international, different SoC and firmware.
Click to expand...
Click to collapse
Wait I got confused. I was thinking of wifi calling when i was posting last night. I made a phone call today and it was waiting for a good signal before dialing. Any ideas? I was hoping to use wifi calling since i get a weak signal with this phone. my LG G6 got a stronger signal in the same spot at the computer desk then this GS7. The G6 has wifi calling in the settings but not this phone.
https://devices.vodafone.com.au/web...ons/making-calls/turn-wi-fi-calling-on-or-off
https://www.verizonwireless.com/support/knowledge-base-203686/
Since I don't have the option myself I can't tell you where the setting should be, but these might help. They're technically different services, so are enabled separately.
Beanvee7 said:
https://devices.vodafone.com.au/web...ons/making-calls/turn-wi-fi-calling-on-or-off
https://www.verizonwireless.com/support/knowledge-base-203686/
Since I don't have the option myself I can't tell you where the setting should be, but these might help. They're technically different services, so are enabled separately.
Click to expand...
Click to collapse
Since I'm on the unlocked version I don't have the Verizon style setup menu so I can't find it. I don't see Wifi calling in the settings at all. I do find a Smart Network Switch in the advanced settings for the Wifi. is that the same as Wifi calling?
(fixed S7 typo)
railfan-eric said:
Since I'm on the unlocked version I don't have the Verizon style setup menu so I can't find it. I don't see Wifi calling in the settings at all. I do find a Smart Network Switch in the advanced settings for the Wifi. is that the same as Wifi calling?
Click to expand...
Click to collapse
You will need to flash the Verizon version of the stock firmware (SM-G930V) in order to get VoLTE and WiFi calling on Verizon's network. Every carrier is different, and this is usually one of those features that require their own firmware build in order to get it to work. If you have the Unlocked version (SM-G930U) then Wifi call may work on other carrier's networks, but it won't work on Verizon.
I'm currently using a Verizon purchased S7, that I flashed to the Unlocked version SM-G930U. Wifi calling works for me because I'm on T-Mobile's network (with Mint Mobile). If I inserted a Verizon SIM then I wouldn't be able to use their Wifi calling without flashing the firmware back.
quasihellfish said:
You will need to flash the Verizon version of the stock firmware (SM-G930V) in order to get VoLTE and WiFi calling on Verizon's network. Every carrier is different, and this is usually one of those features that require their own firmware build in order to get it to work. If you have the Unlocked version (SM-G930U) then Wifi call may work on other carrier's networks, but it won't work on Verizon.
I'm currently using a Verizon purchased G7, that I flashed to the Unlocked version SM-G930U. Wifi calling works for me because I'm on T-Mobile's network (with Mint Mobile). If I inserted a Verizon SIM then I wouldn't be able to use their Wifi calling without flashing the firmware back.
Click to expand...
Click to collapse
I just flashed it with the verizon firmware using the CSC instead of the home_csc and it erased everything installed everything but it's still the 930U and nothing in the settings looks like the verizon model. what did i do wrong? looks like i unzipped the wrong one. dang it i have to do it again. rats. i unzipped the u version by accident.
railfan-eric said:
I just flashed it with the verizon firmware using the CSC instead of the home_csc and it erased everything installed everything but it's still the 930U and nothing in the settings looks like the verizon model. what did i do wrong? looks like i unzipped the wrong one. dang it i have to do it again. rats. i unzipped the u version by accident.
Click to expand...
Click to collapse
trying to flash it with the verizon rom and i get a ext4 failed each time i try. i am using the home_csc. what am i doing wrong?
update: i tried again with the CSC and that worked. just booted up with the verizon logo so i got it!!! this is my first time to flash roms. i never done it before. too scared and not enough need. but now i know how. can't wait to flash with oreo if it comes sooner then the OTA.
railfan-eric said:
trying to flash it with the verizon rom and i get a ext4 failed each time i try. i am using the home_csc. what am i doing wrong?
update: i tried again with the CSC and that worked. just booted up with the verizon logo so i got it!!! this is my first time to flash roms. i never done it before. too scared and not enough need. but now i know how. can't wait to flash with oreo if it comes sooner then the OTA.
Click to expand...
Click to collapse
Congrats. But FYI, the only reason you were able to do it so easily is because you were flashing a "Stock" firmware, direct from Samsung and signed by them. You can flash any US stock firmware on any other US model of the Galaxy S7 (the Qualcomm version). So it's really hard to mess up. Flashing any of the "custom" roms in the other threads is an entirely different animal, and not something I personally recommend unless you are truly motivated and know what you are looking for. Lots of opportunity for error, and requires workarounds.
The point I'm getting at is you'll likely get the official OTA update around the same time you would find a version that you would flash, because they come from the same source, and are the exact same files.
Beanvee7 said:
I would expect the unlocked version to release first since the firmware doesn't have to go through carriers own changes and verification, but that's only a guess.
But since the SoC is the same, you could technically flash the Oreo firmware from whichever phone gets it first, you'd just have to put up with the carriers bloatware.
There's a good flash guide on updato.com for Odin, from memory if you flash all files using home_csc and it's the same version or newer it doesn't wipe. But I've never tried it that way myself.
Click to expand...
Click to collapse
Greetings Sir. Can I root My SM-G930V?? Baseband G930VVRSBCTC1??

Question CSC change S21 Plus

I just upgraded from a S10 Plus to a new S21 Plus , Sdcard fiasco apart is a great phone..
My question is regarding changing the csc on the phone , with my old phone if you flashed a rom ( with CSC not home_csc) or factory reset and introduced a SIM card it will take the CSC according the SIM card and network... for example if the phone was TPA/TPA/PCW and i flashed a rom or do a factory reset with a spanish ( Spain) SIM i would get a PHE/PHE/PCW , it was like that every time
Is not like that with my S21 plus , the CSC on my phone is GTO/GTO,GTO/GTO (dual SIM) I flashed an OXM firmware ( latest march) and introduced a Panama SIM (TPA) i was expecting a change to TPA/TPA,TPA/GTO but it did not change stayed with GTO/GTO,GTO/GTO , tried couple times , factory reset from Android , from recovery , no luck.
What changed?? I am doing something wrong
MAX 404 said:
I just upgraded from a S10 Plus to a new S21 Plus , Sdcard fiasco apart is a great phone..
My question is regarding changing the csc on the phone , with my old phone if you flashed a rom ( with CSC not home_csc) or factory reset and introduced a SIM card it will take the CSC according the SIM card and network... for example if the phone was TPA/TPA/PCW and i flashed a rom or do a factory reset with a spanish ( Spain) SIM i would get a PHE/PHE/PCW , it was like that every time
Is not like that with my S21 plus , the CSC on my phone is GTO/GTO,GTO/GTO (dual SIM) I flashed an OXM firmware ( latest march) and introduced a Panama SIM (TPA) i was expecting a change to TPA/TPA,TPA/GTO but it did not change stayed with GTO/GTO,GTO/GTO , tried couple times , factory reset from Android , from recovery , no luck.
What changed?? I am doing something wrong
Click to expand...
Click to collapse
First of all root phone, download root Explorer then open it change to r/w and go to efs/imei then change these 3 files to ur desired code. Then download latest firmware using frija meanwhile go to dev settings and Lock OEM. Flash downloaded firmware are yep that OXM with CSC file to wipe all data. Voila ur s21+ my dear friend is debranded permamently. After that start using magisk and be happy with ur phone.
My s21+ was TPL/TPL/TPL/EUX/TPL
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Last line of CSC cannot change its on mobo but its not a problem i was able to register and download latest UBB patch via ota after clean flash. Still always patch AP with magisk app when new firmware came out then use all files with home_csc in odin. In case of new firmware comes out and u want upgrade already magsked phone.
Hi @Ziomus
Thanks for the help , I should had been more specific , I know is possible when you are rooted , I just wonder if is still possible when you are not , before was possible...
Ziomus said:
First of all root phone, download root Explorer then open it change to r/w and go to efs/imei then change these 3 files to ur desired code. Then download latest firmware using frija meanwhile go to dev settings and Lock OEM. Flash downloaded firmware are yep that OXM with CSC file to wipe all data. Voila ur s21+ my dear friend is debranded permamently. After that start using magisk and be happy with ur phone.
My s21+ was TPL/TPL/TPL/EUX/TPL
View attachment 5246233
Last line of CSC cannot change its on mobo but its not a problem i was able to register and download latest UBB patch via ota after clean flash. Still always patch AP with magisk app when new firmware came out then use all files with home_csc in odin. In case of new firmware comes out and u want upgrade already magsked phone
Click to expand...
Click to collapse
Hello. is that a mistake ?Lock oem ? or you meant unlock oem ? I am trying to unlock my S21plus SM-G9960 ):
Yes Just Lock OEM for first clean flash after changing code in these files. Then after u skip init setup (data on by whole proces dont need add Google or samsung account) ur phone will be registered with new CSC in ota updates. Then no matter what u do and what you flash in odin new CSC stay
P.S There is no problem with OEM Lock after rootimg phone ive locked OEM for daily use.
Ziomus said:
Yes Just Lock OEM for first clean flash after changing code in these files. Then after u skip init setup (data on by whole proces dont need add Google or samsung account) ur phone will be registered with new CSC in ota updates. Then no matter what u do and what you flash in odin new CSC stay
P.S There is no problem with OEM Lock after rootimg phone ive locked OEM for daily use.
Click to expand...
Click to collapse
Thanks . Please help with following
Q1) I have S21 Plus SM-G9960/DS, Snapdragon variant. I rooted it and installed magisk. Also changed mps_code.dat, omcnw_code.dat and omcnw_code2.dat to ILO . or should I set to some other CSC ?
Q2) after that i should lock the oem . thats mean shutdow, and go to DOwnload mode, long press volume up and lock the OEM from there ? because in dev I cannot see any way to lock the oem.
Please advise
Thanks
shayan101 said:
Thanks . Please help with following
Q1) I have S21 Plus SM-G9960/DS, Snapdragon variant. I rooted it and installed magisk. Also changed mps_code.dat, omcnw_code.dat and omcnw_code2.dat to ILO . or should I set to some other CSC ?
Q2) after that i should lock the oem . thats mean shutdow, and go to DOwnload mode, long press volume up and lock the OEM from there ? because in dev I cannot see any way to lock the oem.
Please advise
Thanks
Click to expand...
Click to collapse
Sorry mate, Just add ur Google account and samsung install Google. Play updates reboot then OEM Lock should be get rid of Grey. You need add account to made frp Lock on.
Meanwhile check ur kg state in odin should be checking. Not broken!! If broken wipe phone without any account on it and flash Stock firmware check kg state shoud be checking. Kg state checking means that you can Lock OEM magisked phone. Dont worry u can always fix broken state if u see it
Ah if u see Grey OEM Lock that means u need add Google account and samsung for sure and your OEM Lock is checking So its fine i suppose . If kg state is broken u should not see OEM Lock option am i right XD? Kg state can be broken when u wipe data via recovery while Google account is addedo. So i bet ur kg state is checking now u need only add accounts and try reboot maybe a while too. Sorry i smoke a lot of weed xddd
Conider that you do e everything ok when your Phone is rooted with magisk safety net looks like this, and you Lock your OEM So half baked protection of frp still working. You can do this all with kg state
Ziomus said:
Sorry mate, Just add ur Google account and samsung install Google. Play updates reboot then OEM Lock should be get rid of Grey. You need add account to made frp Lock on.
Meanwhile check ur kg state in odin should be checking. Not broken!! If broken wipe phone without any account on it and flash Stock firmware check kg state shoud be checking. Kg state checking means that you can Lock OEM magisked phone. Dont worry u can always fix broken state if u see it
Ah if u see Grey OEM Lock that means u need add Google account and samsung for sure and your OEM Lock is checking So its fine i suppose . If kg state is broken u should not see OEM Lock option am i right XD? Kg state can be broken when u wipe data via recovery while Google account is addedo. So i bet ur kg state is checking now u need only add accounts and try reboot maybe a while too. Sorry i smoke a lot of weed xddd
Conider that you do e everything ok when your Phone is rooted with magisk safety net looks like this, and you Lock your OEM So half baked protection of frp still working. You can do this all with kg state
Click to expand...
Click to collapse
Thanks.
WHat CSC should I pick for call recording ? ILO ? or XID ?
i can add call recorder
Ziomus said:
First of all root phone, download root Explorer then open it change to r/w and go to efs/imei then change these 3 files to ur desired code. Then download latest firmware using frija meanwhile go to dev settings and Lock OEM. Flash downloaded firmware are yep that OXM with CSC file to wipe all data. Voila ur s21+ my dear friend is debranded permamently. After that start using magisk and be happy with ur phone.
My s21+ was TPL/TPL/TPL/EUX/TPL
View attachment 5246233
Last line of CSC cannot change its on mobo but its not a problem i was able to register and download latest UBB patch via ota after clean flash. Still always patch AP with magisk app when new firmware came out then use all files with home_csc in odin. In case of new firmware comes out and u want upgrade already magsked phone.
Click to expand...
Click to collapse
Hi, i don't know if you are still active, but do you know if there is a way to UnRoot after all of that ?
Because i want to keep the warranty etc, so i juste want to change the CSC to unlock my phone from the operator.
Thanks in advance
Shayzer said:
Hi, i don't know if you are still active, but do you know if there is a way to UnRoot after all of that ?
Because i want to keep the warranty etc, so i juste want to change the CSC to unlock my phone from the operator.
Thanks in advance
Click to expand...
Click to collapse
Hi
Once you root there is no way back....
Samkey offer a pay service to change your csc... no need to root but there is the need to pay
Just re read your post.....changing your CSC will not unlock ( carrier lock , sim lock) from the operator....

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