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When I received my S3, it was on a T-Mobile branded stock firmware 4.1.1. I wanted to try CyanogenMod, so I installed it, but didn't like it.
Here's where my problem begins. Upon wiping my phone back to stock to get rid of CyanogenMod, I find that it's now AT&T branded, despite the physical phone being a T-Mobile T999.
I tried rooting it and using CSC changers, but those tell me that the PreconfigUI is SingleCSC, and thus apparently unchangeable.
What I want to do is somehow get my phone back to T-Mobile branded stock.
P.S. I do not have a MicroSIM yet.
GraphicsApathy said:
When I received my S3, it was on a T-Mobile branded stock firmware 4.1.1. I wanted to try CyanogenMod, so I installed it, but didn't like it.
Here's where my problem begins. Upon wiping my phone back to stock to get rid of CyanogenMod, I find that it's now AT&T branded, despite the physical phone being a T-Mobile T999.
I tried rooting it and using CSC changers, but those tell me that the PreconfigUI is SingleCSC, and thus apparently unchangeable.
What I want to do is somehow get my phone back to T-Mobile branded stock.
P.S. I do not have a MicroSIM yet.
Click to expand...
Click to collapse
Can you go to your phone's settings => about device and check what the firmware settings are? Let's see what you have under firmware version, baseband version & build number. If possible, you may post a screen shot. Did you say you returned to stock by wiping your phone? Hardly seems likely and you would have probably needed to flash some firmware. Would you recall what you flashed?
Thanks for stepping up. My phone's info is:
Android Version is 4.1.1
Baseband is I747UCDLK3
Build is JRO03L.I747UCDLK3
I did not flash any firmware, as I had no reason to.
GraphicsApathy said:
Thanks for stepping up. My phone's info is:
Android Version is 4.1.1
Baseband is I747UCDLK3
Build is JRO03L.I747UCDLK3
I did not flash any firmware, as I had no reason to.
Click to expand...
Click to collapse
It's definitely on AT&T firmware. Apologies if I sound like I'm doubting you but are you certain it had T-Mobile firmware when you acquired it? I'd guess it was probably already an AT&T phone. If you bought it in the secondary market, there could have been some previous repairs involving parts swaps. Your safest bet may be to leave it as is and unlock for you use on T-Mobile. Trying to force on T-Mobile firmware now could result in a brick. As it is on 4.1.1, you can easily free unlock it by following the well tested method you'll find elsewhere in this forum.
No apologies needed. I forgot to state that the phone was purchased with the T-Mobile boot animation and bloatware already present, and that the model number printed below the battery is T999. I've got no clue if there was a parts swap or not. Is the method to unlock that's posted elsewhere that you're referring to the one that begins with you dialing *#197328640#? If so, i've tried it but never got the unlock message to show.
GraphicsApathy said:
No apologies needed. I forgot to state that the phone was purchased with the T-Mobile boot animation and bloatware already present, and that the model number printed below the battery is T999. I've got no clue if there was a parts swap or not. Is the method to unlock that's posted elsewhere that you're referring to the one that begins with you dialing *#197328640#? If so, i've tried it but never got the unlock message to show.
Click to expand...
Click to collapse
There could have been a previous JTag operation involving forced firmware installation on the MB. I've seen previous hybrid firmware involving one or other partition belonging to a different model - e.g. the modem, bootloader or something else but not the complete system.
Yes, that's the unlock method I was referring to. You won't get any confirmation that the process worked at the end. However, if you did it correctly, you would know it worked when you insert a non-compatible SIM card and it works. You should also be able to install T-Mobile apps especially the Wi-Fi calling app which is a really nice feature of T-Mobile.
I'm getting it microSIM'ed tomorrow. I'll see how that goes.
UPDATE: Successfully obtained and installed T-Mobile microSIM. Still wish to replace AT&T boot animation and bloatware with T-Mobile's, though.
GraphicsApathy said:
I'm getting it microSIM'ed tomorrow. I'll see how that goes.
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Click to collapse
OK. I'd be interested in knowing the outcome but I'll be surprised if it isn't unlocked already. Did some further research and there have been some reports of people successfully 'flashing' AT&T firmware on T-Mobile phones, and vice versa. Not sure why this should happen and conventional logic suggests the result should be a hard brick which is indeed the most common outcome. I'll also suggest you boot into download mode and see the information under bootloader. If the device has a T-Mobile bootloader, it may be possible to remove the OS via custom recovery and re-flash T-Mobile firmware.
Download mode currently gives Product Name as SGH-I747. Wiping AT&T OS via custom recovery and then installing the proper one sounds like a good lead. I eagerly await your instruction
GraphicsApathy said:
Download mode currently gives Product Name as SGH-I747. Wiping AT&T OS via custom recovery and then installing the proper one sounds like a good lead. I eagerly await your instruction
Click to expand...
Click to collapse
If download mode info shows secure bootloader enabled, the phone is, to all intents and purposes, now an AT&T phone. Attempting to flash T-Mobile firmware may likely result in a brick which would require a JTag fix. I was hoping download mode would show it still had a T-Mobile bootloader which could have allowed for safe firmware installation but this does not appear to be the case. Likely the motherboard was previously replaced or it suffered a brick and AT&T firmware was JTagged on. Either way, it would be safer to leave it as is.
Bummer. I'll leave it as is then. Thank you for all the help.
Dear LG Friends,
Long time XDA member, coming from the Windows Phone days HTC, then to Android HTC, bunch of Samsungs, and am now thinking about the LG space. More specifically moving from the Note 3 (T-Mobile US) running on the AT&T US, to the LG G3.
Before I do, I need some help from you guys. Which variant should I go for? I know my primary choices will be the T-Mobile and the AT&T variants (I believe they are 851 and 850)? Based on what's important to me, below, can you guys advise which variant to get?:
1. Development Support - Which variant has the MOST amount of Custom ROM options, that is on-going and kept current? I am spoiled with the Note 3, which has a massive development support. I have never tried the LG OS/Skin (escaping me what it's called), but if it's anything like the TouchWiz on Samsungs, I think it will be important to have CM/AOSP/AOKP and etc support.
2. This is related to # 1 - But I heard that only T-Mobile has the unlocked Bootloader? However, doing some research, I believe the AT&T and the Verizon and Sprint variants can also be unlocked? Is this true? If so, are they anymore limited than the factory unlocked T-Mobile variant?
3. LTE bands - I will most likely be using the phone on AT&T US, but if development options/support are higher on other variants, I might consider buying those models, even if they are missing some AT&T bands. For the Note 3 - T-Mobile is a Pentaband phone, meaning it had all the bands needed, so it could easily work on AT&T LTE, all the time. The reverse was not true.
And basically that is it. Initial instinct says to go chase the T-Mobile variant, based on my needs above. But please educate me and help me out if I have missed something. Thank you so much in advance!
Any input guys?
ProFragger said:
Any input guys?
1. Development Support - Which variant has the MOST amount of Custom ROM options, that is on-going and kept current? I am spoiled with the Note 3, which has a massive development support. I have never tried the LG OS/Skin (escaping me what it's called), but if it's anything like the TouchWiz on Samsungs, I think it will be important to have CM/AOSP/AOKP and etc support.
Click to expand...
Click to collapse
If you want OTA updates i suggest sticking with the AT&T variant since you have a valid AT&T sim. If you use a AT&T sim in a T-Mobile variant you wont ever get OTA updates and that means missing out on necessary fixes
1. All 3 US Variants are mostly the same, all have CM12 and all the random obscure AOSP roms as well
2. Well unlocked bootloader isnt that fancy it just means theres fastboot mode compared with the other editions where fastboot mode doesnt work properly even if you enable it. It essentially just makes installing TWRP easier since you dont have to root before installing it unlike other variants
Nevertheless Lollipop can be rooted on all US Variants right now really easily. But the only downside to it is that removing custom roms sometimes can be a pain since you have to use a way where it sometimes works and sometimes doesnt
itsbighead said:
If you want OTA updates i suggest sticking with the AT&T variant since you have a valid AT&T sim. If you use a AT&T sim in a T-Mobile variant you wont ever get OTA updates
1. All 3 US Variants are mostly the same, all have CM12 and all the random obscure AOSP roms as well
2. Well unlocked bootloader isnt that fancy it just means theres fastboot mode compared with the other editions where fastboot mode doesnt work properly even if you enable it
Click to expand...
Click to collapse
Hi Friend,
Thanks for your response, this is very helpful!
No OTA is never a thing I consider. Everything that matters to me, is what I listed already.
So, is the development support (new ROMs, updates and etc) the same for all US variants or would you say one variant is particularly more popular?
As for the locked bootloader, I thought you needed an Unlocked bootloader to flash Custom ROMs, no? It seems like "Bump" fixes this for Verizon, Sprint, and AT&T and gets you TWRP on your phone, but do we need to do extra steps everything to the boot.img for non T-Mobile variants? Or is it a one time mod and then regular flashing and Backups with TWRP?
If it's the same for all variants after Bump, then you're right, I will likely stay with an AT&T variant, thanks to that Band 7 LTE.
Thank you again for your help, hopefully more can chime in !
ProFragger said:
Hi Friend,
Thanks for your response, this is very helpful!
No OTA is never a thing I consider. Everything that matters to me, is what I listed already.
So, is the development support (new ROMs, updates and etc) the same for all US variants or would you say one variant is particularly more popular?
As for the locked bootloader, I thought you needed an Unlocked bootloader to flash Custom ROMs, no? It seems like "Bump" fixes this for Verizon, Sprint, and AT&T and gets you TWRP on your phone, but do we need to do extra steps everything to the boot.img for non T-Mobile variants? Or is it a one time mod and then regular flashing and Backups with TWRP?
If it's the same for all variants after Bump, then you're right, I will likely stay with an AT&T variant, thanks to that Band 7 LTE.
Thank you again for your help, hopefully more can chime in !
Click to expand...
Click to collapse
No need for any steps. Its just install TWRP and your on your way to installing whatever rom you want
Unlocked bootloader means that the system doesnt security (consistency) checks on system partitions
For LG G3, its because someone cracked the encryption for the kitkat android bootloader which means people can sign non stock boot.img without having to worry about unlocking the bootloader.
itsbighead said:
No need for any steps. Its just install TWRP and your on your way to installing whatever rom you want
Unlocked bootloader means that the system doesnt security (consistency) checks on system partitions
For LG G3, its because someone cracked the encryption for the kitkat android bootloader which means people can sign non stock boot.img without having to worry about unlocking the bootloader.
Click to expand...
Click to collapse
Gotcha, thanks again mate! Another (hopefully last) question. If I buy G3, where someone had already OTA'd to 5.0+, will I still be able to root it, install TWRP and get KK ROMs, like CM11 or something?
And vice versa, if the phone comes with KK, do I need to patch with Bump and then I can install ROMs?
Thank you again!
ProFragger said:
Gotcha, thanks again mate! Another (hopefully last) question. If I buy G3, where someone had already OTA'd to 5.0+, will I still be able to root it, install TWRP and get KK ROMs, like CM11 or something?
And vice versa, if the phone comes with KK, do I need to patch with Bump and then I can install ROMs?
Thank you again!
Click to expand...
Click to collapse
You can root it but i dont know if installing TWRP will work. I didnt want to try it incase it doesnt work and it runs the factory reset script instead. That happened to me once before
But i would say just to be sure, downgrade back to KitKat to do it
Yeah, if the phone comes with KitKat just root, install TWRP using root permissions and then your on your way
itsbighead said:
You can root it but i dont know if installing TWRP will work. I didnt want to try it incase it doesnt work and it runs the factory reset script instead. That happened to me once before
But i would say just to be sure, downgrade back to KitKat to do it
Yeah, if the phone comes with KitKat just root, install TWRP using root permissions and then your on your way
Click to expand...
Click to collapse
This is helpful, once again bud. So how would I downgrade back to KK? Would I have to run a stock firmware of some sort? In Samsung, he Flash a .Tar file through their flashing tool called the Odin. Would that be similarly done here?
I got the notification today.
guitardoc64 said:
I got the notification today.
Click to expand...
Click to collapse
Same Here
---------- Post added at 04:13 PM ---------- Previous post was at 04:12 PM ----------
guitardoc64 said:
I got the notification today.
Click to expand...
Click to collapse
have you saved the 66 mb zip ota update ? can you share it
If i install this update, would i still be able to unlock the bootloader and flash custom ROMs ? im on stock ROM.
sidgallup said:
If i install this update, would i still be able to unlock the bootloader and flash custom ROMs ? im on stock ROM.
Click to expand...
Click to collapse
YES
Welp... today i updated stock ROM to the latest version, after that i unlocked bootloader on Motos website, flashed TWRP, installed LineageOS and coudlnt get signal to connect to GSM, then flashed Resurrection Remix and same problem, everything works except calls, signal bars at at 0, no service.
This reminds me of some issues i had years ago and i needed to flash an older modem for calls to work.
Is anyone else having issues after updating to the latest stock ROM version?
EDIT: just confirmed theres something in the latest OTA that blocks GSM funcionality on custom ROMS, i did the exact same proccess with my brother's phone which is the same as mine, Boost E4, but this time without updating the stock ROM, just went directly to unlocking bootloader out of the box and this time is working perfectly.
I need some help now on how to go back to stock ROM and unlock mine.
It is really sneaky for them to do that! Anyone else run into the same problem? I am hoping to use my 1766 with GSM as well. Any luck reverting the changes?
nookin said:
It is really sneaky for them to do that! Anyone else run into the same problem? I am hoping to use my 1766 with GSM as well. Any luck reverting the changes?
Click to expand...
Click to collapse
Follow the instructions in my stock firmware thread here to restore your device to the most current stock Android OS and firmware config. https://forum.xda-developers.com/moto-e4/how-to/firmware-restoring-moto-e4-xt1766-t3820749
However, as far as downgrading your radio firmware, the bootloader (/aboot) has a feature that prevents downgrading. Attempting to downgrade the bootloader will trip a qFuse and hard brick your device. Sprint is notorious for network restricting their devices. They've been doing this for years. Downgrading the Android OS itself is no problem, but downgrading protected firmware partitions is next to impossible.
MotoJunkie01 said:
Follow the instructions in my stock firmware thread here to restore your device to the most current stock Android OS and firmware config. https://forum.xda-developers.com/moto-e4/how-to/firmware-restoring-moto-e4-xt1766-t3820749
However, as far as downgrading your radio firmware, the bootloader (/aboot) has a feature that prevents downgrading. Attempting to downgrade the bootloader will trip a qFuse and hard brick your device. Sprint is notorious for network restricting their devices. They've been doing this for years. Downgrading the Android OS itself is no problem, but downgrading protected firmware partitions is next to impossible.
Click to expand...
Click to collapse
I read the thread but it is not clear to me if this will solve my problem. From what I understand, the latest OTA blocks GSM usage. But I'm not sure if it also prevents me from using it with other MVNO. I don't see a way to edit APN. It lets me select from a list of Sprint APNs but none of them works. No way to edit or add.
nookin said:
I read the thread but it is not clear to me if this will solve my problem. From what I understand, the latest OTA blocks GSM usage. But I'm not sure if it also prevents me from using it with other MVNO. I don't see a way to edit APN. It lets me select from a list of Sprint APNs but none of them works. No way to edit or add.
Click to expand...
Click to collapse
On another CDMA, the difficulty will not be with the device itself, but rather with MEID whitelisting.
MotoJunkie01 said:
On another CDMA, the difficulty will not be with the device itself, but rather with MEID whitelisting.
Click to expand...
Click to collapse
I was able to register Boost Moto E4 with Tello. I can make phone calls but I cannot use any data (same account, so I know there should be data). The behavior is similar to GSM carriers before APN is setup. I am not sure if it is related to the update.
nookin said:
I was able to register Boost Moto E4 with Tello. I can make phone calls but I cannot use any data (same account, so I know there should be data). The behavior is similar to GSM carriers before APN is setup. I am not sure if it is related to the update.
Click to expand...
Click to collapse
Oh okay. That makes things clearer. With Boost Mobile being a Sprint owned subsidiary, and Tello being a Sprint affiliated MVNO, you are correct that with voice being functional, your data connection should likewise work. (Contrary to popular belief, Boost Mobile is not an MVNO and never has been.) I believe that, in your situation, the last OTA is likely not the problem, but rather with your ability -- or lack thereof -- to edit the APN settings. But, on a positive note, with root of the stock OS, using a root file editor can be used to manually modify your apns-config.xml file to add the 4G/LTE data and MMS parameters for Tello. I believe there are also root dependent apps which can edit APN settings.
Since your xt1766 is the Boost Mobile variant, your default APN & telephony parameters are configured specifically for Boost Mobile. I'm making an educated guess that using root permissions to add Tello data and MMS parameters should fix your issue.
For those who aren't already aware, anyone can now download firmware for almost any Samsung device any time that they want, via SamFirm or Frija. There are threads and info about them here on XDA so I won't waste time explaining - do a search if you're not already familiar with these tools. But for some reason, AT&T doesn't allow their firmware to be publicly available (for any of their devices). I pay for a subscription to a website that gets the official releases (usually) before they hit SamFirm/Frija, and also gives me access to AT&T firmware. So I'm providing it here as a favor to anyone who would make use of it.
Manual Odin flashing in this case would be designed for those of you who:
- want to flash AT&T firmware onto a T-Mobile or Metro device that has been SIM unlocked, in order to have AT&T's customizations and enhancements
- want to manually update to a newer version on your device, either because you don't want to wait for the OTA or because OTAs aren't working on their device (usually because you're using it on a different carrier because AT&T requires an active AT&T SIM to be inserted in order for their devices to successfully check for an OTA update)
This is not a "beginner's guide to Odin flashing"-type post/thread, so I won't list basic, step-by-step flashing instructions. My threads are geared towards those who already know what they're doing. If you're new to manually flashing Samsung firmware, I recommend you consult one of those "beginner's" guides- there are tons of them here on XDA.
Happy flashing!
https://www.androidfilehost.com/?w=files&flid=305872
(Quebec tends to be the fastest download mirror, if it gives you that option)
Notes:
- DON'T QUOTE THE OP WHEN YOU REPLY, kthx
- I have lots of threads just like this one for other Samsung flagships, if it interests you.
- My zips are compressed extra small for space and bandwidth savings. The default Windows extractor can't handle it, so you'll need a 3rd party tool like 7zip, WinRAR, etc
- My naming method for folders on AFH is: build - bootloader - Android version
So "SAT - 1 - 9.0" means the full build number ends in SAT, it's bootloader version 1, and it's Android 9.0. When bootloader and Android versions increment, the first build to have those changes will have its folder notated appropriately.
- HOME CSC file keeps data intact; using the other CSC will wipe data. Flashing USERDATA will also wipe data
**I do not have one of these devices and this has not been 100% verified, until someone actually tries it. Until it's been verified, you're responsible for backing up your data, taking precautions to avoid an FRP lock, etc
- From what I've seen so far, there are some builds that only AT&T will get, some that only T-Mobile and Metro will get, and some that all 3 carries will get. Since T-Mobile (use region/CSC TMB) and Metro (use region/CSC TMK) firmware can be freely downloaded by anyone at any time from SamFirm/Frija, I won't be posting their unique builds here. I also won't be posting any builds that all 3 carriers get. U firmware is identical for the 4 base files (AP, BL, CP, CSC) for each individual build, no matter which carrier it comes from. So if you download 2 different carrier versions of the exact same build, the 4 base files will be identical. Where the firmware differs is in the USERDATA file - that's where the carrier bloatware and customizations reside. So that means that any U firmware version (no matter the carrier) can be flashed to any U device (no matter which carrier's firmware it's running) at any time.
So I'll only be posting AT&T-exclusive builds and even then, I won't post every single one. I don't have unlimited bandwidth on my subscription site, and it takes a lot of time and effort to download the files, extract them, create the HOME CSC, zip them all back up, and upload them to AFH. I'll try to post at least one build per month though
- Switching from one carrier's firmware to another carrier's will require use of the USERDATA file, and also a factory reset. If you just want to manually update instead of waiting for an OTA, then you only need to flash the 4 base files (use HOME CSC if you want to avoid a factory reset).
excellent post I have some questions, how could I have a completely clean N976U version, is there any firmware that is not with any operator? or can i install version u1 of 975n?
I recently tried to install the tmb version of n976u att but when it starts it doesn't load that version and it still continues in ATT that I'm flashing bl, ap, cp, csc, what am I doing wrong?
dr.jonirafael said:
excellent post I have some questions, how could I have a completely clean N976U version, is there any firmware that is not with any operator? or can i install version u1 of 975n?
Click to expand...
Click to collapse
Not possible. No unbranded firmware exists for this model
Can I put the 976(5g) on the 975U?
JapAnEEzE said:
Can I put the 976(5g) on the 975U?
Click to expand...
Click to collapse
The answer hasn't changed since you last asked it.
(in other words it is still no)
Thank you for the link, it helped out more than you know. I have an unlocked N976U (originally on AT&T) that I tried to flash to T-Mobile. And for whatever reason, it didn't work. The phone kept telling me sporadically that there was no sim card installed, and the phone was trying to connect to service using CDMA instead of GSM. As you can guess, that doesn't work.
Considering that Samsung only sells one model of the Note 10+ 5G in the states, and that same model supports three different 5G networks, I have no idea why I cannot get this thing to work. I've never had a problem with a flash before (S9 / S10), but until I went back to the firmware above, I had zero network access. Currently the CSC shows XAA/XAA/ATT. While I know that the last one is the product code and will never change, the first two (XAA/XAA) should be able to be changed to TMB. The Dialer code that I attempted to use *#272*IMEI# Doesn't work either.
Any ideas on what I can try to get this thing up and running on T-Mobile with their branding and what not?
fncd said:
Thank you for the link, it helped out more than you know. I have an unlocked N976U (originally on AT&T) that I tried to flash to T-Mobile. And for whatever reason, it didn't work. The phone kept telling me sporadically that there was no sim card installed, and the phone was trying to connect to service using CDMA instead of GSM. As you can guess, that doesn't work.
Considering that Samsung only sells one model of the Note 10+ 5G in the states, and that same model supports three different 5G networks, I have no idea why I cannot get this thing to work. I've never had a problem with a flash before (S9 / S10), but until I went back to the firmware above, I had zero network access. Currently the CSC shows XAA/XAA/ATT. While I know that the last one is the product code and will never change, the first two (XAA/XAA) should be able to be changed to TMB. The Dialer code that I attempted to use *#272*IMEI# Doesn't work either.
Any ideas on what I can try to get this thing up and running on T-Mobile with their branding and what not?
Click to expand...
Click to collapse
Did you flash all 5 files, including USERDATA? Did it perform a factory reset?
iBowToAndroid said:
Did you flash all 5 files, including USERDATA? Did it perform a factory reset?
Click to expand...
Click to collapse
It did in fact flash all 5 files from the TMB download that I had found. That is where all of my troubles began. Prior to that I wiped the phone, went into recovery, wiped it again and then rebooted to the boot loader. The first time I did it, the phone didn't even know what the IMEI was. It wasn't until I flashed the AT&T firmware that the IMEI came back. As it stands now, most everything is working, except that I'm still on the December patch and it doesn't find updates. I got it working around 2am last night using the older AT&T flash (SL3_1), so this evening I'm going to grab the N976U_TA4_1.zip from AFH that you posted and see what happens there.
I am totally clueless as to how all of the craziness occurred.
fncd said:
It did in fact flash all 5 files from the TMB download that I had found. That is where all of my troubles began. Prior to that I wiped the phone, went into recovery, wiped it again and then rebooted to the boot loader. The first time I did it, the phone didn't even know what the IMEI was. It wasn't until I flashed the AT&T firmware that the IMEI came back. As it stands now, most everything is working, except that I'm still on the December patch and it doesn't find updates. I got it working around 2am last night using the older AT&T flash (SL3_1), so this evening I'm going to grab the N976U_TA4_1.zip from AFH that you posted and see what happens there.
I am totally clueless as to how all of the craziness occurred.
Click to expand...
Click to collapse
What source did you get the firmware from? It sounds less-than-reputable, if it made your phone act that way afterwards
iBowToAndroid said:
What source did you get the firmware from? It sounds less-than-reputable, if it made your phone act that way afterwards
Click to expand...
Click to collapse
I found the build numbers on the web, but downloaded the actual files with SamFirm. I didn't see any of the TMB builds on XDA, so google became my friend (or enemy in this case).
fncd said:
I found the build numbers on the web, but downloaded the actual files with SamFirm. I didn't see any of the TMB builds on XDA, so google became my friend (or enemy in this case).
Click to expand...
Click to collapse
Did it boot up with the T-Mobile logo and all other T-Mo bloatware?
iBowToAndroid said:
Did it boot up with the T-Mobile logo and all other T-Mo bloatware?
Click to expand...
Click to collapse
No. The phone never booted with the T-Mo logo. In fact, even now it boots with the Samsung logo.
I'm guessing that the XAA/XAA/ATT is what is causing that to happen.
If the phone were more popular it would be easier I think to find the firmware numbers and guarantee that I have the right one.
fncd said:
No. The phone never booted with the T-Mo logo. In fact, even now it boots with the Samsung logo.
I'm guessing that the XAA/XAA/ATT is what is causing that to happen.
If the phone were more popular it would be easier I think to find the firmware numbers and guarantee that I have the right one.
Click to expand...
Click to collapse
Well SamFirm will only ever give you 100% correct official firmware, so as long as that's where you got it from, there shouldn't be anything wrong with it. You could try re-downloading it just in case, but I would have expected Odin to flag the md5 if it was an issue of a corrupted download, etc.
Not getting the T-Mobile bloat (assuming that you flashed all 5 files) is definitely strange.
Before you flashed anything, did you ever insert a T-Mobile SIM and see if it prompted you to restart to apply new carrier settings?
iBowToAndroid said:
Well SamFirm will only ever give you 100% correct official firmware, so as long as that's where you got it from, there shouldn't be anything wrong with it. You could try re-downloading it just in case, but I would have expected Odin to flag the md5 if it was an issue of a corrupted download, etc.
Not getting the T-Mobile bloat (assuming that you flashed all 5 files) is definitely strange.
Before you flashed anything, did you ever insert a T-Mobile SIM and see if it prompted you to restart to apply new carrier settings?
Click to expand...
Click to collapse
So here's the thing. The first time I ever inserted my T-mo sim, I got a message about settings, and the phone restarted. It still wasn't T-mo branded, nor did it have any of the bloat (I think that is expected, no?). No other time did it ever ask me, even after being completely wiped. However, after the subsequent installs and wipes, I always had my sim in it.
Odin never threw an error, but of course, that doesn't stop me from potentially downloading the wrong firmware for my device, correct? But in reading your first post, the firmware should all be interchangeable, so I have no idea what caused it to want to see CDMA instead of GSM. Or the super wonky IMEI issue.
I'm on the way home now and will try it again, knowing that I still have the ATT firmware saved in case something goes wrong.
I'll also make sure that the build numbers I found are indeed from the N976U, but I don't see how that could have been wrong. One question just to be sure... The region code for samfirm that I need to use would TMB, yes? Is there anywhere I can go to make sure I AM using the right build? I could only find the numbers with google.
fncd said:
I'll also make sure that the build numbers I found are indeed from the N976U, but I don't see how that could have been wrong. One question just to be sure... The region code for samfirm that I need to use would TMB, yes? Is there anywhere I can go to make sure I AM using the right build? I could only find the numbers with google.
Click to expand...
Click to collapse
Yes, that's the correct region. You can flash any valid build that you want, but SamFirm will always only give you whatever the newest/latest version is.
When you first inserted the T-Mo SIM, did it remove the AT&T apps and bloatware?
iBowToAndroid said:
Yes, that's the correct region. You can flash any valid build that you want, but SamFirm will always only give you whatever the newest/latest version is.
When you first inserted the T-Mo SIM, did it remove the AT&T apps and bloatware?
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Click to collapse
When I first got the phone, it had the ATT ringtones on it, but I never noticed the boot screen being ATT. After the flash though, those were (and are) completely gone. And when I first put my sim in there, I didn't see any ATT apps on it at all.
Edit: Should have noted that I bought it used, but did confirm with AT&T that it was paid off and unlocked by them, but is it possible that the previous owner removed the apps with the *#2xxxxxx# code change? (he did claim to have worked for Samsung recently before moving to my area to another tech company...who knows if that's true or not). Unfortunately I couldn't get that code to do anything. Shrug.
---------- Post added at 12:09 AM ---------- Previous post was at 12:01 AM ----------
Looking at your page here: https://androidfilehost.com/?w=developers&did=4128
It looks like another user posted the T-Mobile flash for January. At least I know (or believe I know) that that will be another trusted source. I'm downloading that now in the hopes that it has the userdata and such in the zip as well. I will flash that over in just a few minutes and see what shakes out.
---------- Post added at 01:01 AM ---------- Previous post was at 12:09 AM ----------
Update: So here is where things get super weird and really have me wondering what is going on with this thing. If I try to flash the latest (march) TMB firmware, the phone boots and doesn't get signal (CDMA mode). If I reset the phone and then flash the latest ATT firmware (on AFH, I think it's February), the phone works perfectly, but still no ATT customization. So. If it holds true that the 4 base files are the same, then the only thing that can be causing that is something in the newer TMB userdata / csc files, right? As those are the only differences.
All of this being said and carrier bloat aside, the phone says it's on LTE+ right now, but the download speeds (according to ookla) are over 200mb (20Mb) / sec. Which, according to Venturebeat is the speed of T-Mobile's 600Mhz 5G service, which is plastered all over my area.
Long story short - As long as I'm flashing ATT Userdata / CSC, then the phone operates normally - though I won't get updates until I can get that XAA/XAA/ATT changed to ATT/ATT/ATT. Flashing any other Userdata / CSC after December 2019 causes issues with the radio.
I do appreciate all of your help, and while my post count is non-existent, I have done my homework as best I can before posting (constant lurker)
To be able to change XAA / XAA / ATT you must use samkey to buy 3 credits and change the csc to ATT or TMB if you want it to be t mobile
change csc
ms-n976u t mobile
i just to have same problem because i use the code *#272*imei and i change to xaa
my phone restart and no brand was on it like it was unlocked model not bloatware csc change to xaa/xaa/tmb
but the code to change csc did work anymore i try different ways but nothing help change firmware did help ether samtool not support
i try the realterm method didn't work
the only thing that work was buy 3 credits on ebay to samkey
change with samkey the csc to tmb and i get the updates right away and all the tmobile bloatware come back
well i post this just to let people be careful when using the *#272* imei code
p3r1k0 said:
ms-n976u t mobile
i just to have same problem because i use the code *#272*imei and i change to xaa
my phone restart and no brand was on it like it was unlocked model not bloatware csc change to xaa/xaa/tmb
but the code to change csc did work anymore i try different ways but nothing help change firmware did help ether samtool not support
i try the realterm method didn't work
the only thing that work was buy 3 credits on ebay to samkey
change with samkey the csc to tmb and i get the updates right away and all the tmobile bloatware come back
well i post this just to let people be careful when using the *#272* imei code
Click to expand...
Click to collapse
Was there anything that was broken or missing on the phone, after you changed it using the code? Were there any functions that did not work?
No luck for me
dr.jonirafael said:
To be able to change XAA / XAA / ATT you must use samkey to buy 3 credits and change the csc to ATT or TMB if you want it to be t mobile
Click to expand...
Click to collapse
For most devices, Tmobile even has in their forums how to flash to a different carrier. However, their directions require you to flash the "unlocked" version of the phone (XAA) first, then the carrier specific firmware to change it over. For the Note 10+ 5G, there is no unlocked version. Samkey lists the 5G as not supported. I have tried a flashing a few different ways to move my ATT version to Tmobile, and it always boots with ATT even after Odin saying it was flashed successfully.
Is there a way just to flash the Verizon radio only to a unlocked 6 pro and not have any issues on custom roms. I am currently on a custom rom and I flashed a non Verizon July ota update, but I have a Verizon sim in it now and something's not right with the cell/data service
Thanks !
It would be best asking in the ROM thread for that particular custom ROM, in my opinion. If the custom ROM already just uses the stock radio image as is without problems, then yes, you should definitely be able to just flash whatever stock radio image you want, to experiment, but there might be details I wouldn't know without being more knowledgeable about the custom ROM itself.
If you can flash it, you can Google it but it's probably something like fastboot flash radio <radio.img>. Replace <radio.img> with the filename of the radio image file that you have in the same folder as your ADB/Fastboot commands, or however you prefer to do it.
Good luck!
roirraW edor ehT said:
It would be best asking in the ROM thread for that particular custom ROM, in my opinion. If the custom ROM already just uses the stock radio image as is without problems, then yes, you should definitely be able to just flash whatever stock radio image you want, to experiment, but there might be details I wouldn't know without being more knowledgeable about the custom ROM itself.
If you can flash it, you can Google it but it's probably something like fastboot flash radio <radio.img>. Replace <radio.img> with the filename of the radio image file that you have in the same folder as your ADB/Fastboot commands, or however you prefer to do it.
Good luck!
Click to expand...
Click to collapse
Yeah I know the commands from past experiences but rooting and unlocking has changed since I last rooted. Because of the different partition set up it changes things. I was used to having cwm recovery or twrp but it seems most phones now a days need to be fastboot flashed and not really having a custom recovery to flash things. Anyways I appreciate the feedback.
I will try just flashing the radio.img unless someone tells me it's won't work like it used to
I'd take a look at this thread:
Thread 'Verizon calling problems' https://forum.xda-developers.com/t/verizon-calling-problems.4460389/
I'm using the current VZW firmware (I'm on prepaid VZW) but flashed A13's beta 4.1 radio because it seems to work better for me in my locale. Do I have objective data to back it up?
Nope.
jgrimberg1979 said:
Is there a way just to flash the Verizon radio only to a unlocked 6 pro and not have any issues on custom roms. I am currently on a custom rom and I flashed a non Verizon July ota update, but I have a Verizon sim in it now and something's not right with the cell/data service
Thanks !
Click to expand...
Click to collapse
I'm willing to bet most of the radios for American based stock ROMs are the same. I think vendor and various system things are what is changed between carriers because they're all designed to run all the same bands.
shag_on_e said:
I'm willing to bet most of the radios for American based stock ROMs are the same. I think vendor and various system things are what is changed between carriers because they're all designed to run all the same bands.
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Click to collapse
I think right but if so my service feels like it did 10 years ago speeds on lte/5G