VoLTE in Vodafone UK network not working - Samsung Galaxy S7 Questions and Answers

Dear Folks,
I have one European S7 SM-G930F. I am in UK and VoLTE is not working with Vodafone. I think it has to do something with the fact that I flashed the Indian ROM in this phone, as VoLTE was not working when I was in India. Now that I am back in UK, I want to enable VoLTE.
I have few questions, need help guys :
1) Can I do this without erasing data?
2) If I only flash the HOME_CSC will it work? Link:https://www.sammobile.com/firmwares/galaxy-s7/SM-G930F/VOD/download/G930FXXU2ERG2/229367/
Currently:
AP: G930FXXU2EREM
CP: G930FXXU2ERD6
CSC: G930FODD2ERE2
Cheeeers

If you flash home_csc it won't wipe and should give you the functionality.
Otherwise there is a flashable CSC tool that you use with TWRP, but I dont think it has Oreo support yet.

Back to Square one
Thanks, I ended up flashing TWRP, which resulted in boot-loop as I did not wiped the data partition and somehow TWRP messed up with my current installation. With boot loop in action and no option I flashed the Vodafone UK ROM, which was a German ROM ( I Don't know why SAM MOBILE would do this) like a spy in British Army. Anyways so all that did not enable VoLTE still and Samsung Pay stopped working. After googling turned out Vodafone UK is very specific to enable VoLTE only on their supplied handsets only. After wasting lot of time, I finally decided to go back to original ROM, now it will take at least a week to set it up with all my apps. What an epic waste of time mate ! Thanks for reading if yer did
Beanvee7 said:
If you flash home_csc it won't wipe and should give you the functionality.
Otherwise there is a flashable CSC tool that you use with TWRP, but I dont think it has Oreo support yet.
Click to expand...
Click to collapse

Yikes, I mentioned the TWRP method second, because it was an option, but it's not something you rush into. Always backup first, always read the full instructions.
TWRP trips Knox, which Samsung Pay uses, so you won't be able to use it again.

Related

[Q] Possible to change region completely in SM-G920i?

First of all, sorry if this has been answered here, I simply can't find a definitive answer for our S6, let me explain better.
As you may know, I'm not a newbie here or in other forums, I've rooted most of my phones (Not this one) and have installed custom roms dozens of times to all of them, BUT, I'm definitely a newbie about what I need here, I'm trying to see if I can change my SM-G920i region from XSA (Australia) to any other one, India in this case. I have read tons of threads and posts and that's what is confusing me, in some threads there are people saying that they did it and is working great, in that same threads there are people saying that they did it but Knox got tripped, there are others that say that the device is soft bricked and others are saying that they have read somewhere that changing the CSC from it's original one may brake future Samsung pay.
So, this phone is paid by my office, they allow me to do what I want to it while I'm able to just put it back as it came from factory, so that means that I can root it if it doesn't trip Knox, that I can install anything while I can simply go back anytime they need me to, and obviously, Samsung pay works when it finally comes. With this in mind, can somebody answer me a couple of questions?
1-) I know it's possible to do it, but is it true that by doing this I'll have Samsung pay issues? I doubt that knox will be tripped if I do it with odin, but besides knox, is there any possibility that Samsung Pay will not work in certain regions (India in this case) and that's why some are saying that it will break it?
2-) If I download the firmware and flash it via Odin, I'm reading that it won't brick the phone is done via Odin, but in worst case scenario I assume that I can always go back to original one and it gets factory reset, am I right?
3-) If I flash it correctly as I expect an it doesn't brick, does this means that it will change PDA and CSC versions all together, that it will basically become a device from the new flashed region? So if I flash the India one to my XSA (Australia) now it will work completely as an India device and should get future OTA like the rest?
Again, sorry if this has been asked and answered but going back a lot of pages here can't give me definitive answer, thanks in advance for those of you kind enough to answer to this.
Flash a G920i ROM via odin other than your own region/country:
http://www.sammobile.com/firmwares/database/SM-G920I/
roydok said:
Flash a G920i ROM via odin other than your own region/country:
http://www.sammobile.com/firmwares/database/SM-G920I/
Click to expand...
Click to collapse
Thanks.
In another thread that I have posted (Brazilian one) I was replied to, so because of that I decided to do it, so far everything is working great as expected. Mine was an Australian baseband (XSA), only thing you I noticed is that when I connect it to Smart Switch app for PC or MAC it will still detects the Original CSC, I was curious about it and installed Phone info apk and it shows correctly the information, both PDA and CSC are now from India but it shows that the Original CSC was XSA (In my case), Firmware's CSC code is INU (India) and Active CSC code it says XSA/INU, so I'm assuming that it's showing multiple CSC.
Does somebody know if having the Active CSC showing XSA/INU causes future OTA issues?
After flashing a ROM its good practice to go to recovery mode and do a full wipe of cache and full reset to change CSC to the default of the ROM you flashed.
roydok said:
After flashing a ROM its good practice to go to recovery mode and do a full wipe of cache and full reset to change CSC to the default of the ROM you flashed.
Click to expand...
Click to collapse
Well, in that case I think I will pass for now, as I did a Full wipe cache and Full reset before the Flash but just did a Wipe cache after I flashed it.
The issue is that I basically just finish setting everything back as it was before (about 3 hours and I still haven't set my Contacts Ringtones and Accounts links) so begin again it's a PITA. Once I finish this I'll do a full nandroid backup to have everything as I want, but if I do the Wipe Data/Full Reset and then restore from the Full backup, does this put everything as it was including CSC again? I've been always confused about how deep this restore goes in the system files. Do you know about it?
Thanks.
Try restoring from your backup after the full wipe from recovery. If everything works then you should be ok. Otherwise start from scratch and reinstall everything one by one.
Will try that later today, thanks.
Goodluck.
roydok said:
Goodluck.
Click to expand...
Click to collapse
I tried that and nothing, still the same, then I decided to remove the Re-activation Lock in Find My Mobile settings, and after that and enter to recovery mode, it changed the CSC to India, so for those of you with same issues, remember about Re-activation lock.
Thanks for your help.
Did you have a SIM card inserted when you flashed your ROM with removed reactivation lock?
I had the SIM card on the phone today all the time as I forgot to bring with me the SIM removal tool and didn't have anything to open the Sim card tray, but last night I didn't have the Sim card installed when I flashed the ROM.
So today after I did the Wipe cache Partition and Data and saw that it still had the same issue, I flashed a UK ROM into a SM-G925f that had some African country ROM (have never heard of it before in my life but for the name it sounded like an African country), anyways I did that and everything went great, so that's when I thought what was different between the devices and then I remember that I had turned on the Reactivation lock in my S6 and not in the S6 Edge, so I turned it off, then went to Recovery mode and for my surprise the CSC was already changed without any other reset or anything.
erasat said:
I had the SIM card on the phone today all the time as I forgot to bring with me the SIM removal tool and didn't have anything to open the Sim card tray, but last night I didn't have the Sim card installed when I flashed the ROM.
So today after I did the Wipe cache Partition and Data and saw that it still had the same issue, I flashed a UK ROM into a SM-G925f that had some African country ROM (have never heard of it before in my life but for the name it sounded like an African country), anyways I did that and everything went great, so that's when I thought what was different between the devices and then I remember that I had turned on the Reactivation lock in my S6 and not in the S6 Edge, so I turned it off, then went to Recovery mode and for my surprise the CSC was already changed without any other reset or anything.
Click to expand...
Click to collapse
can you post a screen of CSC page of Phone ** info ** just for reference?
I see you said that CSC changed to India, but Active CSC or also Original CSC?
What I mean is that, now I have a S6 which has Original, Active CSC as MRU...I'd like to put a European fw on it since I'm based in Europe (got this Middle East / Africa phone just because Dual sim it's not available in europe) but I'm in doubt if putting an european fw will still show that CSC has changed from original one and maybe OTA updates won't work.
thanks
Changing csc!!!
I succesfully installed a G920I indian INU rom in my device which had a XSA rom but when i go to recovery it still shows as XSA ....How do i change that to INU?
Hi i am using a galaxy s6edge+ and i am really struggling with the region lock. I have tried a few options of the factory full reset changing the Apn's to the ones needed and using different sim cards.when it used to go into emergency mode "h+" now it won't connect to any internet at all. Can i possibly have any basic assistance with the rom and resetting options to change the csc when i do a hard reset the csc says it's 'multi'. what does that mean? Any region unlocking help would be appreciated so much!
Thanks guys

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.
{
"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"
}
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)?

How to enable VoLTE/WIFI calling on S7-930F [No Root]

Anyone who owns G930F and didn't have VoLTE or WiFi calling enabled on Nougat firmware BUT managed to get it working afterdoing "x" please share how to do it.
I'm tired of waiting for my Network to release the firmware...
Step by step guide would be welcome
My service provider supports both techs.
thundastruck said:
Anyone who owns G930F and didn't have VoLTE or WiFi calling enabled BUT managed to get it working afterdoing "x" please share how to do it.
I'm tired of waiting for my Network to release the firmware...
Click to expand...
Click to collapse
First and most important ....does your carrier offer those options?
MAX 404 said:
First and most important ....does your carrier offer those options?
Click to expand...
Click to collapse
Of course they do! :good:
Basically just want to know what would happen if I flashed carrier branded csc only with Odin.
E.g. would my phone refuse to boot, would my phone be carrier branded if it succesfully boots, trip Knox, etc...
Any info welcome - tired of googling the answers or searching XDA forum for answers.
thundastruck said:
Basically just want to know what would happen if I flashed carrier branded csc only with Odin.
E.g. would my phone refuse to boot, would my phone be carrier branded if it succesfully boots, trip Knox, etc...
Any info welcome - tired of googling the answers or searching XDA forum for answers.
Click to expand...
Click to collapse
Might have some carrier preinstalled crap but it won't trip KNOX nor prevent the phone from booting
thundastruck said:
Basically just want to know what would happen if I flashed carrier branded csc only with Odin.
E.g. would my phone refuse to boot, would my phone be carrier branded if it succesfully boots, trip Knox, etc...
Any info welcome - tired of googling the answers or searching XDA forum for answers.
Click to expand...
Click to collapse
Hi mate,,,,
Some more info would help , like what firmware /CSC you have now and what firmware carriers CSC you need....
Anyhow you may find this interesting, check here
MAX 404 said:
First and most important ....does your carrier offer those options?
Click to expand...
Click to collapse
MAX 404 said:
Hi mate,,,,
Some more info would help , like what firmware /CSC you have now and what firmware carriers CSC you need....
Anyhow you may find this interesting, check here
Click to expand...
Click to collapse
That answered some of my questions, thanks.
Please see screenshot for my mutiCSC firmware. I am running Android 7 but haven't changed CSC since I got the phone in December 2016. I got it with Marshmallow on it. Everytime I upgrade firmware with Odin I select Home CSC so my CSC never changes.
Since the solution is in the CSC (afaik), which CSC do you recommend I flash with Odin? I understand how to flash with Odin if CSC not in my multiCSC firmware (tick re-partition, etc...)
My home network is Vodafone (CSC is XVF which is not part of my CSC).
thundastruck said:
That answered some of my questions, thanks.
Please see screenshot for my mutiCSC firmware. I am running Android 7 but haven't changed CSC since I got the phone in December 2016. I got it with Marshmallow on it. Everytime I upgrade firmware with Odin I select Home CSC so my CSC never changes.
Since the solution is in the CSC (afaik), which CSC do you recommend I flash with Odin? I understand how to flash with Odin if CSC not in my multiCSC firmware (tick re-partition, etc...)
My home network is Vodafone (CSC is XVF which is not part of my CSC).
Click to expand...
Click to collapse
If i got it right you are not root, right? if you are root there are other ways....
Yes you need the right CSC to make it work , in this case Vodafone XFV.
When you change to a different CSC is recommended to check re partition to adjust to the possible change in partitions
https://www.sammobile.com/firmwares/galaxy-s7/SM-G930F/XFV/download/G930FXXU1DQD2/131635/
Download the firmware and extract the correct CSC from it , if you do not want all the vodafone stuff you could download and unbranded firmware and use the BL ,CP , AP from it and the CSC (XFV) from Vodafone and flash it all together
BACK UP FIRST .......
MAX 404 said:
If i got it right you are not root, right? if you are root there are other ways....
Yes you need the right CSC to make it work , in this case Vodafone XFV.
When you change to a different CSC is recommended to check re partition to adjust to the possible change in partitions
https://www.sammobile.com/firmwares/galaxy-s7/SM-G930F/XFV/download/G930FXXU1DQD2/131635/
Download the firmware and extract the correct CSC from it , if you do not want all the vodafone stuff you could download and unbranded firmware and use the BL ,CP , AP from it and the CSC (XFV) from Vodafone and flash it all together
BACK UP FIRST .......
Click to expand...
Click to collapse
Yes, no root (for now). Will only root in a year when I get my upgrade on my contract.
Thanks, you basically confirmed what I suspected. Just needed a Jedi to point that out so I have peace of mind. I shall report back... :highfive: :good:
thundastruck said:
Yes, no root (for now). Will only root in a year when I get my upgrade on my contract.
Thanks, you basically confirmed what I suspected. Just needed a Jedi to point that out so I have peace of mind. I shall report back... :highfive: :good:
Click to expand...
Click to collapse
No problem mate.
Let us know how it goes

VoLTE on SM-G930F

Hi there !
Here is the thing : my wife got a S7 from Amazon Italy.
CSC used is : G930FITV3ERKF
Phone state : Full stock Oreo, no root, no custom recovery, nothing changed.
Is there a way to enable VoLTE/VoWIFI on this ? Ideally without rooting or needing to wipe.
No one ?
repulse said:
No one ?
Click to expand...
Click to collapse
The issue is not the CSC *version*, but rather the 3-letter CSC code. You must install a ROM (using Odin) with the CSC code that is used by your carrier (who must support VoLTE, of course).
If your carrier doesn't support VoLTE, there is nothing you can do. If you aren't using a carrier-compatible ROM, VoLTE won't work even if the carrier supports VoLTE.
Droiderat said:
The issue is not the CSC *version*, but rather the 3-letter CSC code. You must install a ROM (using Odin) with the CSC code that is used by your carrier (who must support VoLTE, of course).
If your carrier doesn't support VoLTE, there is nothing you can do. If you aren't using a carrier-compatible ROM, VoLTE won't work even if the carrier supports VoLTE.
Click to expand...
Click to collapse
Flashing with Odin will wipe all data, right ?
repulse said:
Flashing with Odin will wipe all data, right ?
Click to expand...
Click to collapse
If you flash with "CSC", it will wipe all data; if you flash with "Home_CSC", it won't.
If you are changing the CSC of your phone (a process you should research before flashing anything), you will likely need to wipe all data.
Droiderat said:
If you flash with "CSC", it will wipe all data; if you flash with "Home_CSC", it won't.
If you are changing the CSC of your phone (a process you should research before flashing anything), you will likely need to wipe all data.
Click to expand...
Click to collapse
Hum, OK. Still better no need to wipe, but not a big deal though. Thanks dude !
If you want to root, you may be able to avoid wiping data by using the Alexndr ROM (which is, for the most part, a stripped version of a stock ROM). See https://forum.xda-developers.com/galaxy-s7/development/rom-dqd2-devbase-v4-1-multi-csc-safe-t3592914 The installation process allows you to specify the CSC, but I can't give you the nuances of doing that as I have never done it.
Note that if you root, it is my understanding that you won't be able to use Samsung Pay (ever; once the switch is tripped, you can't go back). You can, of course, reinstall purely stock ROMs (w/o root), but Samsung Pay will never work. This isn't important to me; it may be to you.
Samsung Pay isn't important to me, same as knox. Alexndr ROM seems good, will give it a look.

Question One UI 5 is out. Flashing INU on EUX phone. What about OTA updates ?

Hello, I've been waiting a really long time for One UI 5 and I couldn't wait anymore once I heard the stable is out in India. I downloaded the INU firmware using Frija then I changed my CSC to INU using SamFwRP tool and flashed the INU firmware using patched Odin. Then I reverted back my CSC to EUX again with SamFwRP.
After all of this, finally did a wipe cache and factory reset. Now I'm wondering...since my CSC is back to EUX...will I still receive OTAs ? For example One UI 5.1 OTA or December security patch whenever that releases
EDIT: Weirdest thing is when I flashed INU HOME_CSC on my phone there was no data that was reset. Is it because they're both OXM ?
EDIT2: DISCLAIMER - I'm not an Android dev, I'm not knowledgeable on anything technical or otherwise. Please take advice from anyone else but me!
Thanks for the tip about Frija, I had forgotten all about that one (been checking sammobile and galaxyfirmware daily for weeks now) I'm downloading now and will edit this post with success or failure! (I'm EUY)
As for your question about still receiving OTAs or not, I honestly don't know because I've rooted every phone I've ever had in 17 years! but I can't see why it would be a problem if you didn't receive them as you can always download them from Frija surly not?
Okay download complete, I'm going in.. wish me luck!
beanbean50 said:
Thanks for the tip about Frija, I had forgotten all about that one (been checking sammobile and galaxyfirmware daily for weeks now) I'm downloading now and will edit this post with success or failure! (I'm EUY)
As for your question about still receiving OTAs or not, I honestly don't know because I've rooted every phone I've ever had in 17 years! but I can't see why it would be a problem if you didn't receive them as you can always download them from Frija surly not?
Okay download complete, I'm going in.. wish me luck!
Click to expand...
Click to collapse
Well yeah, you can. But I don't wanna lol. I'm not a ROM hax0r. I'm just a power user. I don't even have a Windows laptop around most of the time and Heimdall looks scary .
Is EUY the same as EUX ? I saw it on the firmware websites...but I never heard about it. Is it for France or something ? Rest of the EU uses EUX as far as I know.
I think EUX, EUY, INU are just the same ****, not sure. They all have OXM Multi CSC and they kinda look identical tbh as far as numbers go. So if you revert your CSC back to EUY...updates should work, no ?
Success!
I just flashed the Magisk patched AP file the CP file and HOME CSC file and all up and running Android 13/One UI 5... (also rooted) thanks bro..
I think if you revert your CSC back to EUY then yes I can't see any reason why you shouldn't receive OTAs
thought it was too good to be true, keep getting a service provider update required (but it won't update) and access denied here and there. can't even odin flash back to Android 12 for some strange reason hmm
It's working perfectly for me. Have you reverted CSC ? And deleted cache and factory reset after flashing. I have literally 0 errors and 5G works. But I deleted did a wipe cache and factory reset and reverted CSC as well
beanbean50 said:
thought it was too good to be true, keep getting a service provider update required (but it won't update) and access denied here and there. can't even odin flash back to Android 12 for some strange reason hmm
Click to expand...
Click to collapse
Wrote a comment
What Odin version too ? I used the latest PatcheD version from here: https://forum.xda-developers.com/t/patched-odin-3-13-1.3762572/
XME - Malaysia released OneUI 5 Android 13 for Z Flip 3
This is how my INU firmware with EUX CSC looks.
case81 said:
What Odin version too ? I used the latest PatcheD version from here: https://forum.xda-developers.com/t/patched-odin-3-13-1.3762572/
Click to expand...
Click to collapse
tried that one as well, it flashed and booted okay but with tons of errors, luckily I managed to get back to Android 12 and will stay there till the EUY update comes along.
beanbean50 said:
tried that one as well, it flashed and booted okay but with tons of errors, luckily I managed to get back to Android 12 and will stay there till the EUY update comes along.
Click to expand...
Click to collapse
Tons of errors ? Where ? Just curious if I have them as well
case81 said:
Tons of errors ? Where ? Just curious if I have them as well
Click to expand...
Click to collapse
I think it's to do with trying to root it. It detects root and denies access to the PC, to update the service provider and many more things something like 'we have detected a tampered device, please contact your customer service'
beanbean50 said:
I think it's to do with trying to root it. It detects root and denies access to the PC, to update the service provider and many more things something like 'we have detected a tampered device, please contact your customer service'
Click to expand...
Click to collapse
So...this happens when changing CSC ?
case81 said:
So...this happens when changing CSC ?
Click to expand...
Click to collapse
All okay now must have been gremlins .. I think it detects your CSC when installing, it reads your simcard.
Thanks for this thread!
It worked very well for me. Factory reset is a chore after, but everything works and I haven't had any issues so far. I do not root, so nothing to report about that.
Installed the firmware on my BTU phone
Works wonder 0 errors or issues
did Samsung and google cloud backups before flashing during setup restored both and its as if I never did a thing everything was put in its place and it was the most effortless phone setup I ever did
Now I'm just enjoying my android 13
case81 said:
Hello, I've been waiting a really long time for One UI 5 and I couldn't wait anymore once I heard the stable is out in India. I downloaded the INU firmware using Frija then I changed my CSC to INU using SamFwRP tool and flashed the INU firmware using patched Odin. Then I reverted back my CSC to EUX again with SamFwRP.
After all of this, finally did a wipe cache and factory reset. Now I'm wondering...since my CSC is back to EUX...will I still receive OTAs ? For example One UI 5.1 OTA or December security patch whenever that releases
EDIT: Weirdest thing is when I flashed INU HOME_CSC on my phone there was no data that was reset. Is it because they're both OXM ?
Click to expand...
Click to collapse
Hi, flashing the home-csc does not restore the phone to factory settings ( wipe data etc ) If you flash the csc, then your phone will be wiped and restored as it was out of the box. Also you dont have to change CSC, i'm on XSA and I flashed the IDU firmware.... This does not chage the CSC of the phone anyway. A lot of the Samsung firmware are multi - CSC these days.
noel_leon said:
Thanks for this thread!
It worked very well for me. Factory reset is a chore after, but everything works and I haven't had any issues so far. I do not root, so nothing to report about that.
Click to expand...
Click to collapse
I'm not sure you actually have to do it. I'm just a big giant noob with no knowledge in Android, this is why I did all that
slysurfer said:
Hi, flashing the home-csc does not restore the phone to factory settings ( wipe data etc ) If you flash the csc, then your phone will be wiped and restored as it was out of the box. Also you dont have to change CSC, i'm on XSA and I flashed the IDU firmware.... This does not chage the CSC of the phone anyway. A lot of the Samsung firmware are multi - CSC these days.
Click to expand...
Click to collapse
So I could actually just have stayed on EUX without changing my CSC while flashing and everything would have worked fine ? Thanks, that's really good to know!

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