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Galaxy S6 root > change csc > unroot possible?

Hi everyone
What's the best way to change my CSC to BTU (from EVR)?
I've done a little research and found the following:
1. Root using PingPong to prevent KNOX trip
2. change CSC using an app (is this available for S6 in the app store?)
3. flash with BTU firmware and unroot
Is any of this possible, is there a better way?
thank you.

Yes, its possible while your still on 5.0.2.

roydok said:
Yes, its possible while your still on 5.0.2.
Click to expand...
Click to collapse
Thanks roydok, whats the best app in the store to make the change as there are so many to choose from?
Also is there a simpler way, or is the way i described it the only option, esp for KNOX trip?
I've seen some other tutorials use the auto cf root way, is that ok to use or does that trip KNOX?
Lastly, if i move to BTU and update to 5.1.1 will i continue to get OTA updates direct from Samsung rather than my carrier?
thank you.

sohail_ahmad said:
Thanks roydok, whats the best app in the store to make the change as there are so many to choose from?
Also is there a simpler way, or is the way i described it the only option, esp for KNOX trip?
I've seen some other tutorials use the auto cf root way, is that ok to use or does that trip KNOX?
Lastly, if i move to BTU and update to 5.1.1 will i continue to get OTA updates direct from Samsung rather than my carrier?
thank you.
Click to expand...
Click to collapse
As far as I am aware.. your csc will change by flashing btu... your root obviously be gone too. If you flash 5
1.1 you loose root but you'll gain ota from samsung rather than your carrier. Hope that helps

Skip the rooting and just flash the btu firmware from Odin. That will change your CSC anyway.
I was on vau firmware but changed to xsa using this method.
Just be sure the btu firmware us for the same variant of fallacy s6 as your device (I.e both 920F or whatever you're rocking)
EDIT
To get btu system updates going forward you WILL need to factory reset after flashing the btu firmware as your device needs to re-register with that CSC. There might be a way to force it to do that without a factory reset but I dunno how. So perhaps use smart switch or Helium (from app store) to backup whatever is important to you first
Sent from my SM-G925I using Tapatalk

dlotters said:
Skip the rooting and just flash the btu firmware from Odin. That will change your CSC anyway.
I was on vau firmware but changed to xsa using this method.
Just be sure the btu firmware us for the same variant of fallacy s6 as your device (I.e both 920F or whatever you're rocking)
EDIT
To get btu system updates going forward you WILL need to factory reset after flashing the btu firmware as your device needs to re-register with that CSC. There might be a way to force it to do that without a factory reset but I dunno how. So perhaps use smart switch or Helium (from app store) to backup whatever is important to you first
Sent from my SM-G925I using Tapatalk
Click to expand...
Click to collapse
Thanks dlotters, is this safe and won't trip KNOX? and no way of doing it without reset? I'll have to do a Kies and Helium backup before i start.
Which version of Odin should i use?

dlotters said:
Skip the rooting and just flash the btu firmware from Odin. That will change your CSC anyway.
I was on vau firmware but changed to xsa using this method.
Just be sure the btu firmware us for the same variant of fallacy s6 as your device (I.e both 920F or whatever you're rocking)
EDIT
To get btu system updates going forward you WILL need to factory reset after flashing the btu firmware as your device needs to re-register with that CSC. There might be a way to force it to do that without a factory reset but I dunno how. So perhaps use smart switch or Helium (from app store) to backup whatever is important to you first
Sent from my SM-G925I using Tapatalk
Click to expand...
Click to collapse
SSTIWARI's reply in the following post scared me http://forum.xda-developers.com/gal...ock-rom-via-odin-affect-t3138019#post61992036
His Knox tripped when using a standard BTU ROM from sammobile and flashing via Odin 3.10.6, it sounds risky.
So going back to my original post, would that order of doing seem the safest? Would it even work? Still not sure which app to use to change the CSC.
thanks.

sohail_ahmad said:
SSTIWARI's reply in the following post scared me http://forum.xda-developers.com/gal...ock-rom-via-odin-affect-t3138019#post61992036
His Knox tripped when using a standard BTU ROM from sammobile and flashing via Odin 3.10.6, it sounds risky.
So going back to my original post, would that order of doing seem the safest? Would it even work? Still not sure which app to use to change the CSC.
thanks.
Click to expand...
Click to collapse
Strange. Everything else I've seen on here and other for UK mobile s suggest that flashing stock roms with Odin is safe and doesn't trip Knox. My own experience confirms that also. But I used the xsa firmware as I've the 925I variant so maybe it's different. Seems odd though. What about other people who have flashed btu firmware? Is his an isolated incident?
Sent from my SM-G925I using Tapatalk

dlotters said:
Strange. Everything else I've seen on here and other for UK mobile s suggest that flashing stock roms with Odin is safe and doesn't trip Knox. My own experience confirms that also. But I used the xsa firmware as I've the 925I variant so maybe it's different. Seems odd though. What about other people who have flashed btu firmware? Is his an isolated incident?
Sent from my SM-G925I using Tapatalk
Click to expand...
Click to collapse
After adding my post, i did a little more research, even watched a few videos of the process from beginning to end and i'm a little more confident. Maybe it was an isolated incident, well hoping so.
Going to run more backups and try it tonight.
Did you still have to use the wipe option? if so what was your method or restore?
I've created another post but haven't had any answers yet.
http://forum.xda-developers.com/galaxy-s6/help/correct-to-restore-s6-types-backups-t3163101
thanks.

sohail_ahmad said:
After adding my post, i did a little more research, even watched a few videos of the process from beginning to end and i'm a little more confident. Maybe it was an isolated incident, well hoping so.
Going to run more backups and try it tonight.
Did you still have to use the wipe option? if so what was your method or restore?
I've created another post but haven't had any answers yet.
http://forum.xda-developers.com/galaxy-s6/help/correct-to-restore-s6-types-backups-t3163101
thanks.
Click to expand...
Click to collapse
The reason you have to wipe/factory reset is so that your device registers with Samsung for updates against the new CSC. It was previously registered against the old CSC so won't get update notifications for the new one unless you do. At least, that's what I had to do to get XSA updates pushed to my (previously VAU CSC) phone. It's been confirmed by a number of other users over on whirlpool forums (Australian tech forum).
If there's another way to register the device then I don't know what it is
How did I restore? Well, I used Helium to do the back up of app data and sms's etc, so just restored via helium. Discovered Smart Switch backups afterwards but I've never used it myself so can't comment.

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)?

Convert SM-G930T to SM-G930A so I can use AT&T LTE bands.

Hi All, I want to continue using my AT&T prepaid plan but I recently bought a locked T-Mobile Galaxy S7 SM-G930T (I'm going to try to unlock it - if that doesn't work this is all moot). I would like to flash AT&T firmware so I can use the AT&T LTE bands. Can I follow the instructions in the link below once I've unlocked a T-Mobile SM-G930T and turn it into a SM-G930A?
http://www.droidviews.com/nougat-firmware-on-att-galaxy-s7s7-edge-sm-g930a-g935a/
I've read the link below... but it seems to be only if you want to continue using T-Mobile service which I don't.
https://forum.xda-developers.com/tm...w-to-flash-att-nougat-to-t-mobile-s7-t3553610

Changing firmware doesn't have anything to do with what bands the hardware supports. Unlock it and throw the ATT SIM in. Only difference is carrier supported features and software (wifi calling, etc). Flashing ATT modem might improve coverage but all S7 support the same bands.

Thanks buddy for the reply. I'm used to using a custom ROM on my Android phones so this is new. Mostly CyanogenMod.
That's good to know I don't need to flash in order to get the bands but I understand I need to if I want OTA updates from at&t. It seems relatively simple that you just flash the AT&T ROM over the T-Mobile with Odin and then use some update file. It doesn't even effect Samsung pay and Knox which is great.
Stupid question: is the AT&T modem included with the AT&T rom? Also, with regards to the 2nd link in the OP what is the update file that you put on the sdcard to use in recovery - is that an OTA update because your ROM is different from your carrier?

madadhd said:
Thanks buddy for the reply. I'm used to using a custom ROM on my Android phones so this is new. Mostly CyanogenMod.
That's good to know I don't need to flash in order to get the bands but I understand I need to if I want OTA updates from at&t. It seems relatively simple that you just flash the AT&T ROM over the T-Mobile with Odin and then use some update file. It doesn't even effect Samsung pay and Knox which is great.
Stupid question: is the AT&T modem included with the AT&T rom? Also, with regards to the 2nd link in the OP what is the update file that you put on the sdcard to use in recovery - is that an OTA update because your ROM is different from your carrier?
Click to expand...
Click to collapse
The following is the latest G930A Android 7.0 firmware file. All you need to do is flash it with Odin's AP slot to completely convert your G930T to a G930A. No other steps or files are required: G930AUCS4BQC2_CL10280464_QB12904132_REV02_user_low_ship_MULTI_CERT_meta.tar.rar
EDIT: Corrected the linked file

muniz_ri said:
The following is the latest G930A Android 7.0 firmware file. All you need to do is flash it with Odin's AP slot to completely convert your G930T to a G930A. No other steps or files are required: G930AUCS4BQC2_CL10280464_QB12904132_REV02_user_low_ship_MULTI_CERT_meta.tar.rar
EDIT: Corrected the linked file
Click to expand...
Click to collapse
i have METROPCS Phone SM-G930T1 Nougat, already unlocked since i live in mexico...is there a international rom to flash?? i wanna convert my s7 to a non carrier rom IN ADVANCE THANKS 4 YOUR HELP!

muniz_ri said:
The following is the latest G930A Android 7.0 firmware file. All you need to do is flash it with Odin's AP slot to completely convert your G930T to a G930A. No other steps or files are required: G930AUCS4BQC2_CL10280464_QB12904132_REV02_user_low_ship_MULTI_CERT_meta.tar.rar
EDIT: Corrected the linked file
Click to expand...
Click to collapse
I don't get why you would do this other than to have ATT bloat over TMO bloat (IMHO TMO has less bloat than ATT). There's no technical advantage. Am I missing something?

A0425A said:
I don't get why you would do this other than to have ATT bloat over TMO bloat (IMHO TMO has less bloat than ATT). There's no technical advantage. Am I missing something?
Click to expand...
Click to collapse
The amount of bloatware is irrelevant since you can freeze all bloatware on either build. I experienced many issues on the TMo version including issues with Android Auto, Google Assistant, and Tasker. I thought these apps were buggy but all of those issues were resolved on the AT&T version. The AT&T version seems to be a better, bug-free build.

muniz_ri said:
The amount of bloatware is irrelevant since you can freeze all bloatware on either build. I experienced many issues on the TMo version including issues with Android Auto, Google Assistant, and Tasker. I thought these apps were buggy but all of those issues were resolved on the AT&T version. The AT&T version seems to be a better, bug-free build.
Click to expand...
Click to collapse
Read that in a different thread you posted to after I responded. I think it's very YMMV though. But if you saw improvement then ??

Hi, did anyone ever complete this flash from SM-G930T to SM-G930A? I'd like to do this solely to try and get the wifi calling feature since my workplace has poor cell service but great wifi. I bought the T-Mobile phone, unlocked it, put the ATT sim in and everything but wifi calling works fine. I appreciate the reply!

This is much later in the year (11-8-2021) and ATT has posted the list of phone they say will work and it only shows G930A. It seems their test of working means it must have been sold by ATT. They say My G930T won't work. So Will ATT continue to use customer's unlocked phones it they were not orginally sold by ATT. They have the records. Will ATT refuse to use one of their SIMs even if the phone is Flashed to ATT logo. I do not want to throw away my G930T phone.

muniz_ri said:
The following is the latest G930A Android 7.0 firmware file. All you need to do is flash it with Odin's AP slot to completely convert your G930T to a G930A. No other steps or files are required: G930AUCS4BQC2_CL10280464_QB12904132_REV02_user_low_ship_MULTI_CERT_meta.tar.rar
EDIT: Corrected the linked file
Click to expand...
Click to collapse
Hello and thank you. You posted this information and link back in 2017 and so much has changed. Mostly ATT is now working hard to get rid of all 3G towers and firing up 5G. They said my Galaxy S7-GM930T would not work so I think they link you posted will help me convert the phone back to a GM930A or U or U1. My question is,..Has anything in your post changed since 2017 and if so could you please advise me of what I need to do. Thanks very much.

trigger1937 said:
Hello and thank you. You posted this information and link back in 2017 and so much has changed. Mostly ATT is now working hard to get rid of all 3G towers and firing up 5G. They said my Galaxy S7-GM930T would not work so I think they link you posted will help me convert the phone back to a GM930A or U or U1. My question is,..Has anything in your post changed since 2017 and if so could you please advise me of what I need to do. Thanks very much.
Click to expand...
Click to collapse
They sent you a message saying the phone won't work?

Switch from SM-G930U Nougat to SM-G930T Oreo (T-Mobile) possible?

Has anyone successfully (or have any info regarding) converted from a SM-G930U (7.0) to a SM-G930T (8.0)?
I have a completely stock, working S7 SM-G930U (that I previously converted from SM-G930V), updated to the latest Unlocked 7.0 version. I was eager to get Oreo, but didn't want to wait for 930U firmware so decided to just switch to the T-mobile version because I'm on a T-mobile MVNO. However, when I tried just flashing the G930T files with Odin it fails right after the "emmc_appsboot.mbn.lz4" step (whatever that is). This made the phone unbootable and would just boot loop.
I was able to successfully recover the phone by re-flashing the G930U files again after downloading from Updato. So the phone is working again, but I'm right back where I started.
So, my question is: Is there something different that I should be doing, or some other secret to go from U -> T, with the intent of getting Oreo? Would it work if I flashed the 7.0 version of 930T, then taken the OTA update?
Edit: As indicated in the responses below, the solution is the latest Odin version (3.13.1), and I successfully converted. Good luck!

quasihellfish said:
Has anyone successfully (or have any info regarding) converted from a SM-G930U (7.0) to a SM-G930T (8.0)?
I have a completely stock, working S7 SM-G930U (that I previously converted from SM-G930V), updated to the latest Unlocked 7.0 version. I was eager to get Oreo, but didn't want to wait for 930U firmware so decided to just switch to the T-mobile version because I'm on a T-mobile MVNO. However, when I tried just flashing the G930T files with Odin it fails right after the "emmc_appsboot.mbn.lz4" step (whatever that is). This made the phone unbootable and would just boot loop.
I was able to successfully recover the phone by re-flashing the G930U files again after downloading from Updato. So the phone is working again, but I'm right back where I started.
So, my question is: Is there something different that I should be doing, or some other secret to go from U -> T, with the intent of getting Oreo? Would it work if I flashed the 7.0 version of 930T, then taken the OTA update?
Click to expand...
Click to collapse
You need to update your Odin. Oreo ROMs use a new compression format that your old Odin can't handle.

Ultima99 said:
You need to update your Odin. Oreo ROMs use a new compression format that your old Odin can't handle.
Click to expand...
Click to collapse
Update to what? I was using 3.12.7.
Edit: OK, looks like I found it. 3.13.1 is for Oreo, etc. Thanks for the heads-up.

Hi. I have the same Verizon s7 and have also got a 930u rom on it but I am desperate for Oreo. Have you managed to successfully flash the 930t oreo rom? And if so where did you download it from?

updated URL
james909 said:
Hi. I have the same Verizon s7 and have also got a 930u rom on it but I am desperate for Oreo. Have you managed to successfully flash the 930t oreo rom? And if so where did you download it from?
Click to expand...
Click to collapse
Yes, I was successful. You can get the firmware from Updato here: https://updato.com/firmware-archive-select-model?q=SM-G930T&exact=1&r=&v=Oreo(Android+8.0.0)&rpp=15
But ignore their update instructions, as they are outdated and meant for Nougat and below. You need Odin 3.13.1, from here: https://forum.xda-developers.com/galaxy-s8+/how-to/guide-flash-oreo-g955fxxu1crb7-using-t3755789.
If you try with an older Odin version it will soft-brick your device (as I found). Otherwise flashing instructions are simple and the same as when you switched to 930U.

Great thanks. I will try it!

I can't get it to start. I've loaded up the firmware into odin, connected the phone in download mode and it won't start flashing. What could I be doing wrong and is it worth doing anyway?

james909 said:
I can't get it to start. I've loaded up the firmware into odin, connected the phone in download mode and it won't start flashing. What could I be doing wrong and is it worth doing anyway?
Click to expand...
Click to collapse
I can't tell you if it's worth it (I think it is). But you also need the Samsung USB drivers installed on your PC, and you need USB debugging turned on, etc. Make sure you have a working connection before flashing.

It worked. Thanks!

Does it has the whole bloatware thing???
I'm still gonna flash it, but I wanna know, cuz I'm not in my house right now, and also is it laggy???

Whicho_castillo said:
Does it has the whole bloatware thing???
I'm still gonna flash it, but I wanna know, cuz I'm not in my house right now, and also is it laggy???
Click to expand...
Click to collapse
Define "bloatware thing". There's like half a dozen T-mobile apps, plus a small handful of other "pre-installed" things like Whatsapp, etc. Virtually all of them can be disabled. The only one I've found that can't is the official T-mobile account app. But I just cleared the apps data, and never use it. I'm not logged in or anything, so it sits there idle.
Regarding "laggy", I can't really say. It works as well as Nougat did. And I think I can say the battery life is definitively better.

quasihellfish said:
Define "bloatware thing". There's like half a dozen T-mobile apps, plus a small handful of other "pre-installed" things like Whatsapp, etc. Virtually all of them can be disabled. The only one I've found that can't is the official T-mobile account app. But I just cleared the apps data, and never use it. I'm not logged in or anything, so it sits there idle.
Regarding "laggy", I can't really say. It works as well as Nougat did. And I think I can say the battery life is definitively better.
Click to expand...
Click to collapse
Thank for your response, at least I'll be using GoodLock

I have all the files over in the TMobile forum
Use the latest Odin
https://forum.xda-developers.com/tm.../sm-g930t-official-stock-oreo-update-t3810449
---------- Post added at 05:21 AM ---------- Previous post was at 05:18 AM ----------
quasihellfish said:
Has anyone successfully (or have any info regarding) converted from a SM-G930U (7.0) to a SM-G930T (8.0)?
I have a completely stock, working S7 SM-G930U (that I previously converted from SM-G930V), updated to the latest Unlocked 7.0 version. I was eager to get Oreo, but didn't want to wait for 930U firmware so decided to just switch to the T-mobile version because I'm on a T-mobile MVNO. However, when I tried just flashing the G930T files with Odin it fails right after the "emmc_appsboot.mbn.lz4" step (whatever that is). This made the phone unbootable and would just boot loop.
I was able to successfully recover the phone by re-flashing the G930U files again after downloading from Updato. So the phone is working again, but I'm right back where I started.
So, my question is: Is there something different that I should be doing, or some other secret to go from U -> T, with the intent of getting Oreo? Would it work if I flashed the 7.0 version of 930T, then taken the OTA update?
Click to expand...
Click to collapse
U firmware is just firmware without carrier bloat. You can flash any carrier on an unlocked phone. I provided the link to my thread with the official TMobile Oreo stock files just get Odin. https://forum.xda-developers.com/tm.../sm-g930t-official-stock-oreo-update-t3810449

hello. I had flashed my smg930a with smg930U firmware. after that everytime I restarted my mobile, it showed error " no network connection " sometimes it picked up network after a restart and sometimes it picked up network after weeks. Tried flashing smg930a firmware again but the error remains same. Now i flashed it with smg930t firmware hoping the error will end but it shows "searching" and I've no network connection.
any help will be great.

Hi, there's bloatware and it's mildly annoying as is the t-mobile splash screen and sound effect. I'll switch bach to 930u when Oreo is available. You'll also have no data toggle swith in the shortcuts when you pull the screen down. However, I added mine using adb. You can also uninstall programs uing adb but I haven't. If anyone has the adb script for removing t-mobile apps I'd be greatful if they'd post it.

UmerBaig said:
hello. I had flashed my smg930a with smg930U firmware. after that everytime I restarted my mobile, it showed error " no network connection " sometimes it picked up network after a restart and sometimes it picked up network after weeks. Tried flashing smg930a firmware again but the error remains same. Now i flashed it with smg930t firmware hoping the error will end but it shows "searching" and I've no network connection.
any help will be great.
Click to expand...
Click to collapse
Call your network provider or carrier and see if they can change the settings or to make sure your data settings are set up right. Things like apn settings, network, etc.
---------- Post added at 03:18 PM ---------- Previous post was at 03:17 PM ----------
james909 said:
Hi, there's bloatware and it's mildly annoying as is the t-mobile splash screen and sound effect. I'll switch bach to 930u when Oreo is available. You'll also have no data toggle swith in the shortcuts when you pull the screen down. However, I added mine using adb. You can also uninstall programs uing adb but I haven't. If anyone has the adb script for removing t-mobile apps I'd be greatful if they'd post it.
Click to expand...
Click to collapse
Once official Oreo is out for 930u I'm switching back also

UmerBaig said:
hello. I had flashed my smg930a with smg930U firmware. after that everytime I restarted my mobile, it showed error " no network connection " sometimes it picked up network after a restart and sometimes it picked up network after weeks. Tried flashing smg930a firmware again but the error remains same. Now i flashed it with smg930t firmware hoping the error will end but it shows "searching" and I've no network connection.
any help will be great.
Click to expand...
Click to collapse
What network SIM are you using? You kind of need to match the firmware with the carrier you are using, as it enable certain radios. That being said, the 930U should work universally. If it doesn't, then you probably didn't update or use the right APN settings to enable LTE. You'll have to do some online searching to look for the appropriate APN settings for your carrier, especially if you are using a firmware version that doesn't match your carrier.

I have Tmobile G930t.
Can i install G930FD indian rom in it?
Indian roms are for exynos processors i guess..
Pls advice

atin_garg said:
I have Tmobile G930t.
Can i install G930FD indian rom in it?
Click to expand...
Click to collapse
NO!
atin_garg said:
Indian roms are for exynos processors i guess.
Click to expand...
Click to collapse
Yes.

Can i Install this on My 930U its nougat and this to go on OREO ? is it possible ?
Thanks

Question Verizon help unlocked s22 ultra

I have an unlocked S22 Ultra and Verizon as my phone provider. Is there any way that I can get the Verizon features like video calling? I contacted Verizon and Samsung and they are giving me the runaround. I saw that there was a way for t-mobile, but I want Verizon. I like the native calling because I can take it off of speak, I cannot do that with Duo. Thank you so much in advance.

If it matters to you that much you can always flash the U carrier-branded firmware. But then (it's highly recommend) that you clean flash and lose data. You're not going to get VZ video calling on U1

Will I be able to use Verizon Other apps properly?

itsLazR said:
If it matters to you that much you can always flash the U carrier-branded firmware. But then (it's highly recommend) that you clean flash and lose data. You're not going to get VZ video calling on U1
Click to expand...
Click to collapse
How do I do all of that? Is there a detailed video with the step I can follow? This will be the first time doing something like this. This is my first unlocked phone.

samsungsince09 said:
How do I do all of that? Is there a detailed video with the step I can follow? This will be the first time doing something like this. This is my first unlocked phone.
Click to expand...
Click to collapse
This is what you need:
https://forum.xda-developers.com/t/...d-s22-ultra-sm-s908u1-versions.4400511/unread
start from the first page to make sure you understand what you do. It is REALLY simple... just follow the steps and you should not have any issues

joancolmenares said:
This is what you need:
https://forum.xda-developers.com/t/...d-s22-ultra-sm-s908u1-versions.4400511/unread
start from the first page to make sure you understand what you do. It is REALLY simple... just follow the steps and you should not have any issues
Click to expand...
Click to collapse
this will work for Verizon

I have the carrier unlocked u1 and flashed to the U TMobile. I'm getting all TMobile features. If you need help with this I'll be happy to help

dia_naji said:
I have the carrier unlocked u1 and flashed to the U TMobile. I'm getting all TMobile features. If you need help with this I'll be happy to help
Click to expand...
Click to collapse
I see 3 versions with VZW. I have the S22 ultra 1tb. Which one would I use?

samsungsince09 said:
I see 3 versions with VZW. I have the S22 ultra 1tb. Which one would I use?
Click to expand...
Click to collapse
Ok before you jump in, read the posts carefully. I guess you have a U1 (us unlocked) and want to switch to U (us carrier branded).
Make sure you are selecting the proper section U vs U1. Then choose the proper firmware you wish to flash. Keep in mind the following:
1. There are multiple files because there have been updates so make sure you pick the newest one.
2. Use Odin 3.13 patched
3. Read and ask question on that thread if needed, and you will get help..
BACK UP EVERYTHING as you will wipe clean your device.
Boot the device with verizon sim once completed.

joancolmenares said:
Ok before you jump in, read the posts carefully. I guess you have a U1 (us unlocked) and want to switch to U (us carrier branded).
Make sure you are selecting the proper section U vs U1. Then choose the proper firmware you wish to flash. Keep in mind the following:
1. There are multiple files because there have been updates so make sure you pick the newest one.
2. Use Odin 3.13 patched
3. Read and ask question on that thread if needed, and you will get help..
BACK UP EVERYTHING as you will wipe clean your device.
Boot the device with verizon sim once completed.
Click to expand...
Click to collapse
Do you have the Odin 3.13 patch?

samsungsince09 said:
Do you have the Odin 3.13 patch?
Click to expand...
Click to collapse
https://samsungodin.com/download/Odin3_v3.13.1.zip

samsungsince09 said:
Do you have the Odin 3.13 patch?
Click to expand...
Click to collapse
You are correct on what I am trying to do.

I downloaded Odin 3.13 patched and Samsung Phone Firmware. I am confused about the BL, AP, Cp, CSC, and USERDATA information.

Read the post carefully... it explains what you have to put...
basically, you unzip the firmware file and you need to load the files in Odin. (BL/AP/CP/CSC) keep in mind that there are 2 CSC files, one that is just CSC and another HOME_CSC flashing one or the other is the difference between a clean flash (with full wipe) or a dirty wipe (no user data deleted). Please READ the thread I pointed you to to be clear on what you are doing. If you are confused about the files you need to read some more.

I highly recommend NOT converting to Verizon's software. Having started out with the Verizon version, there was a ton of bloatware, some of which that could not be removed. Samsung's completely free SmartCall filtering was also removed for Verizon's "free" Call Filter app which requires a paid subscription for full functionality.
The U1 firmware can do everything the U firmware can do except native Verizon to Verizon video calls. Even then, some would argue that Google Duo is a better option as it works to iPhones and non Verizon subscribers.

Guyinlaca said:
I highly recommend NOT converting to Verizon's software. Having started out with the Verizon version, there was a ton of bloatware, some of which that could not be removed. Samsung's completely free SmartCall filtering was also removed for Verizon's "free" Call Filter app which requires a paid subscription for full functionality.
The U1 firmware can do everything the U firmware can do except native Verizon to Verizon video calls. Even then, some would argue that Google Duo is a better option as it works to iPhones and non Verizon subscribers.
Click to expand...
Click to collapse
My family has Verizon. I can use Duo but Duo also uses speakerphone. When my son is asleep using the native calling is beneficial for me because I can take the speakerphone off.

joancolmenares said:
Read the post carefully... it explains what you have to put...
basically, you unzip the firmware file and you need to load the files in Odin. (BL/AP/CP/CSC) keep in mind that there are 2 CSC files, one that is just CSC and another HOME_CSC flashing one or the other is the difference between a clean flash (with full wipe) or a dirty wipe (no user data deleted). Please READ the thread I pointed you to to be clear on what you are doing. If you are confused about the files you need to read some more.
Click to expand...
Click to collapse
Ok I see the data. I didn't unzip the vzw firmwire.

dia_naji said:
I have the carrier unlocked u1 and flashed to the U TMobile. I'm getting all TMobile features. If you need help with this I'll be happy to help
Click to expand...
Click to collapse
I want to make sure I have clarification before I work on this evening and you have experience doing all of this. I have downloaded and unzipped the Odin and Verizon firmware. As far as the CSC and homecsc which one would I use to wipe my phone clean to get the Verizon features.

CSC will wipe all data, HOME CSC will NOT wipe data.
You should also be able to remove all Verizon bloatware through abd commands or using the universal android debloater.

daLareid said:
CSC will wipe all data, HOME CSC will NOT wipe data.
You should also be able to remove all Verizon bloatware through abd commands or using the universal android debloater.
Click to expand...
Click to collapse
I am trying to add the Verizon bloatware. I bought the unlocked S22 ultra 1Tb