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Hello,
I've been trying to find my answers on how to flash a AT&T GS9 SM-G960U with a T-Mobile S9 Stock Firmware\ROM.
I found this thread and although it's fairly close to what I am trying to do, I didn't want to post this there because they are talking about flashing U1 to U and I'm not sure if that is what I need to do exactly. https://forum.xda-developers.com/galaxy-s9/how-to/how-to-flash-u1-firmware-to-device-t3765200 from this thread, I've followed the initial steps and although Odin (Moded Odin v3.13.1 Raymonf ) tells me that the flash passed, upon reboot, the phone does not have the TMO firmware, it's still the original AT&T firmware. The only thing that it did do was add the TMO Visual VM icon\app.
I was informed of being able to download the TMO firmware from here: https://www.droiddosh.com/2018/04/samsung-galaxy-s9-sm-g960u-firmware-tmobile-usa-G960USQU1ARBG.html
Am I doing something wrong here? It seems that maybe these US models do not offer the OEM Bootloader unlocker option in developer settings unless you purchase the U1 version direct from Samsung that does not have a locked boot loader? I got this phone at no cost so that is also why I did not purchased from Samsung directly.
Any guidance and help would be appreciated.
Thank you
US carrier models have locked bootloaders, no way to root or install custom roms.
We should be able to flash between carrier versions/CSCs like we could with the S8, but the process is different and I've only read of a few people finding success in trying. The voicemail app you're seeing is due to flashing the T-Mobile userdata partition. This is the bloat partition - doesn't actually change device features, etc.
Any chance anybody has success doing this? It seems like a "Must Have" feature to switch carrier roms on the G960U between carriers, including Boot Screen/Logo, Firmware, Bloatware, etc.
All the goodies.
Any help?
Thank you,
I've done it!
dovid said:
Any chance anybody has success doing this? It seems like a "Must Have" feature to switch carrier roms on the G960U between carriers, including Boot Screen/Logo, Firmware, Bloatware, etc.
All the goodies.
Any help?
Thank you,
Click to expand...
Click to collapse
I've completed this task tonight thanks to some great help from a user that stepped me through it on a TMO Forum.
First an FYI, I first was able to flash my AT&T S9 version from SM-960U to a Stock SM-960U1. It worked great. After that, I was able to flash the TMO Rom and it's also working perfect. I'm not sure if it's required or not to flash the phone to a U1 first or if the TMO Rom can just be flashed. After I flashed the TMO firmware, I had no issues downloading and installing the latest TMO update. (My device is unlocked as well)
It's best to use Samsung switch first to backup your texts, pics, etc. first if you want to restore them to the device after completing the flash. The below instructions will start the phone up as if it was new out if the box.
Here is what I was provided with and the steps I followed.
To Flash the SM-G960U to a SM-G960U1
1. Allow\Enable USB Debugging in Developers settings.
2. Download the U1 Firmware here: https://androidfilehost.com/?w=files&flid=257063
(this is the U1 from Samsung, it's compressed but once extracted it will be around 4GB's of data.)
3. Download the ADB tools: https://devfiles.co/download/PDYvOWBg/platform-tools-latest-windows.zip. Create a folder on your desktop and name it ADB (for easy reference)
4. Download Odin: https://drive.google.com/file/d/10dSyPTuccP8Km9MnDrvbRdS-CAcgFZB3/view
5. From windows, run command prompt, in the command prompt type the following: cd C:\Users\XXX\Desktop\ADB
(XXX is your username)
6. Connect your phone to a USB port on your computer, your phone should prompt you to allow the connection to\from your computer. Allow the connection. Might be best to choose to "Always Allow"
7. Return to the command prompt and type in: adb devices You should see your device listed.
8. In the same command window, type in: adb reboot bootloader This will auto reboot your device into the "Download" mode.
9. Open and run Odin, add the corresponding tar files to the respective area's, in the "options tab" in Odin, make sure that only "Auto Reboot" and "F. Reset Time" is checked.
Click "Start" and the process will take a few minutes to complete.
Allow the device a few minutes to auto reboot and start up.
After you get through all the post boot setup screens, open a phone dial pad and type in, *#2263#. then make sure that all LTE bands are enabled.
Here you can find the SM-G960U T-Mobile Files: https://www.droiddosh.com/2018/04/samsung-galaxy-s9-sm-g960u-firmware-tmobile-usa-G960USQU1ARBG.html
Switching from U -> U1 -> U
B"H
Ok, thank you.
1. So stock G960U (Original Carrier) -> Flash to U1 -
2. Then, Go from G960U1 -> Stock G960U (Any Carrier)
Few questions:
1. Which CSC file are you using to flash -- CSC_HOME?
2. In moving from U1 -> U, do you need the final carrier SIM inside the phone?
I've tried this with a Verizon phone I'd like to convert to XFinity (CCT). I flashed the G960U VZW to G960U1 XXA. That worked fine. Then I flashed the G960U CCT rom, and the phone just boots up Verizon. When I check the CSC, it says "VZW/VZW/VZW", even though I flashed the CCT rom.
I don't have an XFinity sim card, so perhap that is the problem.
Any help would be great.
dovid said:
B"H
Ok, thank you.
1. So stock G960U (Original Carrier) -> Flash to U1 -
2. Then, Go from G960U1 -> Stock G960U (Any Carrier)
Few questions:
1. Which CSC file are you using to flash -- CSC_HOME?
2. In moving from U1 -> U, do you need the final carrier SIM inside the phone?
I've tried this with a Verizon phone I'd like to convert to XFinity (CCT). I flashed the G960U VZW to G960U1 XXA. That worked fine. Then I flashed the G960U CCT rom, and the phone just boots up Verizon. When I check the CSC, it says "VZW/VZW/VZW", even though I flashed the CCT rom.
I don't have an XFinity sim card, so perhap that is the problem.
Any help would be great.
Click to expand...
Click to collapse
You most likely will need a Xfinity Sim Card. I was able to convert my Xfinity Mobile S9 to AT&T by going to U1 firmware then inserting my AT&T sim card then flashing the AT&T U firmware.
ajairola said:
You most likely will need a Xfinity Sim Card. I was able to convert my Xfinity Mobile S9 to AT&T by going to U1 firmware then inserting my AT&T sim card then flashing the AT&T U firmware.
Click to expand...
Click to collapse
Where is the at&t u firmware? Currently on the unlocked firmware. Thanks
Savebig said:
Where is the at&t u firmware? Currently on the unlocked firmware. Thanks
Click to expand...
Click to collapse
Go to this thread (thanks @iBowToAndroid) and then look in the RB7 folder on Android File host.
Question
Does anyone know if you have to have the phone unlocked before changing over carriers? for example if i had a Galaxy S9 from Sprint and wanted to change the firmware to T-Mobile would it work or would it still be locked to Sprint? Thanks for your Help!
B AdamsHxC said:
Does anyone know if you have to have the phone unlocked before changing over carriers? for example if i had a Galaxy S9 from Sprint and wanted to change the firmware to T-Mobile would it work or would it still be locked to Sprint? Thanks for your Help!
Click to expand...
Click to collapse
Have the same question, but on my Verizon Note 8...
PieceofSlice said:
Have the same question, but on my Verizon Note 8...
Click to expand...
Click to collapse
I would check if your phone is already unlocked, Most Verizon phones come unlocked (unless you bought them from a Verizon Tent at Cosco or stores like that) Just put in another carriers sim card and check, if it is unlocked then you shouldnt have to flash anything, once you put in a different carrier sim it will tell you to restart your phone and once you do it will come up with the new carriers splash logo and apps
PieceofSlice said:
Have the same question, but on my Verizon Note 8...
Click to expand...
Click to collapse
In my experience all the carrier S9s are locked. You will need an unlock code from your carrier or an unlocking service.
Noob here: I’ve read that all US S9 models are the same in terms of hardware, is that true? Would that mean if I change the firmware from verizon to T-Mobile, it’ll be fully compatible?
Xamuyees said:
Noob here: I’ve read that all US S9 models are the same in terms of hardware, is that true? Would that mean if I change the firmware from verizon to T-Mobile, it’ll be fully compatible?
Click to expand...
Click to collapse
Yes! All 965U's, 965U1's, and 965W's are the exact same hardware, just different firmware.
For those of you that use TMO or U1 firmware on an unlocked ATT phone on TMO network, do you get a <Subject: NoSubject> before other people's texts in group texts? I've tried flashing U and U1 firmware several times as well as factory reset without being able to get rid of the subject line. Anyone have any insight or suggestions?
I was able to go from U1 to the att firmware. My question is why does samsung pass not work? I can see that the knox is not tripped and google play store is certified. Device status says official. Device is not rooted but Samsung pass thinks it is rooted. Why would this happen when all I did was install the carrier bundle?
(Newbie) doing what jrockz3000 did would allow root to be possible?
MFmvrdoc said:
(Newbie) doing what jrockz3000 did would allow root to be possible?
Click to expand...
Click to collapse
Unfortunately not. All North American S9s are not able to be rooted at this point.
ajairola said:
Unfortunately not. All North American S9s are not able to be rooted at this point.
Click to expand...
Click to collapse
Thank you man~
Odin link down
jrockz3000 said:
I've completed this task tonight thanks to some great help from a user that stepped me through it on a TMO Forum.
First an FYI, I first was able to flash my AT&T S9 version from SM-960U to a Stock SM-960U1. It worked great. After that, I was able to flash the TMO Rom and it's also working perfect. I'm not sure if it's required or not to flash the phone to a U1 first or if the TMO Rom can just be flashed. After I flashed the TMO firmware, I had no issues downloading and installing the latest TMO update. (My device is unlocked as well)
It's best to use Samsung switch first to backup your texts, pics, etc. first if you want to restore them to the device after completing the flash. The below instructions will start the phone up as if it was new out if the box.
Here is what I was provided with and the steps I followed.
To Flash the SM-G960U to a SM-G960U1
1. Allow\Enable USB Debugging in Developers settings.
2. Download the U1 Firmware here:
(this is the U1 from Samsung, it's compressed but once extracted it will be around 4GB's of data.)
3. Download the ADB tools: . Create a folder on your desktop and name it ADB (for easy reference)
4. Download Odin:
5. From windows, run command prompt, in the command prompt type the following: cd C:\Users\XXX\Desktop\ADB
(XXX is your username)
6. Connect your phone to a USB port on your computer, your phone should prompt you to allow the connection to\from your computer. Allow the connection. Might be best to choose to "Always Allow"
7. Return to the command prompt and type in: adb devices You should see your device listed.
8. In the same command window, type in: adb reboot bootloader This will auto reboot your device into the "Download" mode.
9. Open and run Odin, add the corresponding tar files to the respective area's, in the "options tab" in Odin, make sure that only "Auto Reboot" and "F. Reset Time" is checked.
Click "Start" and the process will take a few minutes to complete.
Allow the device a few minutes to auto reboot and start up.
After you get through all the post boot setup screens, open a phone dial pad and type in, *#2263#. then make sure that all LTE bands are enabled.
Here you can find the SM-G960U T-Mobile Files:]
Click to expand...
Click to collapse
Odin link down.
hi, when i bought my n920a it had firmware 6.0.1 but with cs XSG of the arab emirates but now i can not flash this csc anymore. How should I do? also when I downloaded samsung flow did not make me use fingerprints because it said that I had done the root previously but I had already bought it so. Is there a way to root?
Are you sure your device was originally an N920A? And have you ever flashed the stock AT&T Firmware to your device yourself manually?
I ask it like that because, if you went and bought a Rooted N920A from an older firmware and then flashed a newer stock firmware to the device, you definitely removed the carrier unlocked modem and reinstalled the AT&T CSC. The firmware does try to prevent all other firmwares from being used.
You may end up needing to flash the modem from the combination firmware in order to regain your carrier unlock status, that may allow you to flash another region's CSC. But you would want to use a Home CSC version if you can. One that doesn't include the PIT file with it. The Home CSC version typically does not contain a PIT file but has a meta data folder that accompanies the cache image. The Home CSC also doesn't require a device wipe.
But if you accidentally locked your unlocked phone, I hope you didn't flash an unrootable bootloader over a rooted bootloader. But using the Combination Firmware's Modem/CP should allow you to change carriers and manually adjust APN or Cellular Settings. Although it may mess up your wifi defaults until you mess with wpasupplicant.
Thanks, I installed the latest firmware available NRD90M. N920AUCS6ERH1. Is it no longer possible to downgrade?
Hi All,
I have Samsung S9 Unlocked T-mobile from US and currently in India. Currently i have Oreo Version.
As all know, it doesnt have VOLTE option enabled which is needed for my sim network for voice calls to go through.
Somewhere i read Pie update will have VOLTE option and hence i am trying to update to Pie update.
I downloaded G960USQS6CSGB firmware for T-mobile, but before upating firmware using Odin, i got doubt if it will stick to T Mobile after update. This will make my phone not usable in India.
I tried to check online, but couldnt get direct answer and hence posting in new thread.
Can someone help clarify if it will lock the mobile to T-Mobile or will the phone be still in unlocked state?
Also i see two CSC files in the firmware folder. CSC and HOME_CSC. Which one to use?
If I should update with some other firmware for being unlocked and yet to get PIE update, please point to required firmware name or links.
Also will updating to PIE update will have VOLTE option ? Kindly confirm.
Thanks in Advance.
abalanag said:
Hi All,
I have Samsung S9 Unlocked T-mobile from US and currently in India. Currently i have Oreo Version.
As all know, it doesnt have VOLTE option enabled which is needed for my sim network for voice calls to go through.
Somewhere i read Pie update will have VOLTE option and hence i am trying to update to Pie update.
I downloaded G960USQS6CSGB firmware for T-mobile, but before upating firmware using Odin, i got doubt if it will stick to T Mobile after update. This will make my phone not usable in India.
I tried to check online, but couldnt get direct answer and hence posting in new thread.
Can someone help clarify if it will lock the mobile to T-Mobile or will the phone be still in unlocked state?
Also i see two CSC files in the firmware folder. CSC and HOME_CSC. Which one to use?
If I should update with some other firmware for being unlocked and yet to get PIE update, please point to required firmware name or links.
Also will updating to PIE update will have VOLTE option ? Kindly confirm.
Thanks in Advance.
Click to expand...
Click to collapse
csc will factory reset your phone, home_csc wont
volte wasnt removed from pie, so that shouldnt be an issue
the firmware version you posted has the 6th bootloader revision, im betting here is a 7th available for your phone, but the 6th version should be fine as well
as far as the unlocked state of the phone goes, it shouldnt re-lock, but im paranoid lol. Have you looked into the U1 versions of the phones firmware? Theyre inherently unlocked firmwares and dont have any of that irritating bloatware **** in them
youdoofus said:
csc will factory reset your phone, home_csc wont
volte wasnt removed from pie, so that shouldnt be an issue
the firmware version you posted has the 6th bootloader revision, im betting here is a 7th available for your phone, but the 6th version should be fine as well
as far as the unlocked state of the phone goes, it shouldnt re-lock, but im paranoid lol. Have you looked into the U1 versions of the phones firmware? Theyre inherently unlocked firmwares and dont have any of that irritating bloatware **** in them
Click to expand...
Click to collapse
Thanks youdoofus the inputs. Say by chance if it gets locked, is there a way to unlock the phone again from here?
may be then i will try to load U1 versions otherwise. Thanks alot.
abalanag said:
Thanks youdoofus the inputs. Say by chance if it gets locked, is there a way to unlock the phone again from here?
may be then i will try to load U1 versions otherwise. Thanks alot.
Click to expand...
Click to collapse
if it has no financial obligation to any carrier and the phone locks to that carrier, then the carrier it locked to would be required to release it. I cant imagine how it would lock to t-mob tho
Factory unlocked phones stay unlocked, no matter what firmware you flash.
Carrier locked phones that were properly unlocked by the carrier (they provide the code to SIM unlock the phone) will stay unlocked, again, no matter what firmware you flash to it - as long as it's compatible. Flashing the wrong firmware may just brick the phone. But, at least it's still SIM unlocked.
Phones that had some kind of software hack installed to trick the phone into thinking it's unlocked will lose the unlock status when you flash a firmware that also wipes the phone. Then it will come back as carrier locked again, because the hack is gone.
That last case is the only case I know of that will "re-lock" a phone. I've never heard of a carrier unlocked phone spontaneously re-locking under any circumstance.
Hi,
Thanks for the details. I tried to flash G960U1UES6CSG4_G960U1OYM6CSG4_XAA firmware. But while loading AP file in ODIN, it gave some error. Couldnt understand what is the error as its in chinese.
Then i loaded G960USQS6CSGB_G960UOYN6CSGB_TMB firmware which i downloaded previously. This got loaded in ODIN without any issues. And i am able to flash to phone. On rebooting, saw that phone moved to Pie version.
But i couldnt find VOLTE option (Enhanced calling) option. Does anyone know which version will enable that option?
Or anyother way to enable that please.
Thanks in advance.
joeldf said:
Factory unlocked phones stay unlocked, no matter what firmware you flash.
Carrier locked phones that were properly unlocked by the carrier (they provide the code to SIM unlock the phone) will stay unlocked, again, no matter what firmware you flash to it - as long as it's compatible. Flashing the wrong firmware may just brick the phone. But, at least it's still SIM unlocked.
Phones that had some kind of software hack installed to trick the phone into thinking it's unlocked will lose the unlock status when you flash a firmware that also wipes the phone. Then it will come back as carrier locked again, because the hack is gone.
That last case is the only case I know of that will "re-lock" a phone. I've never heard of a carrier unlocked phone spontaneously re-locking under any circumstance.
Click to expand...
Click to collapse
another user just posted up in another thread that they had a factory cricket phone that got unlocked, he put an at&t sim in it and it installed at&t apps and locked the phone to at&t FWIW
---------- Post added at 02:42 PM ---------- Previous post was at 02:36 PM ----------
abalanag said:
Hi,
Thanks for the details. I tried to flash G960U1UES6CSG4_G960U1OYM6CSG4_XAA firmware. But while loading AP file in ODIN, it gave some error. Couldnt understand what is the error as its in chinese.
Then i loaded G960USQS6CSGB_G960UOYN6CSGB_TMB firmware which i downloaded previously. This got loaded in ODIN without any issues. And i am able to flash to phone. On rebooting, saw that phone moved to Pie version.
But i couldnt find VOLTE option (Enhanced calling) option. Does anyone know which version will enable that option?
Or anyother way to enable that please.
Thanks in advance.
Click to expand...
Click to collapse
if your Odin error messages are in Chinese, youve obtained a modified version. Itll probably work, but youll get that Chinese stuff whenever it needs to tell you anything. I dont know which versions have volte tbh. Sorry man.
youdoofus said:
another user just posted up in another thread that they had a factory cricket phone that got unlocked, he put an at&t sim in it and it installed at&t apps and locked the phone to at&t FWIW
---------- Post added at 02:42 PM ---------- Previous post was at 02:36 PM ----------
if your Odin error messages are in Chinese, youve obtained a modified version. Itll probably work, but youll get that Chinese stuff whenever it needs to tell you anything. I dont know which versions have volte tbh. Sorry man.
Click to expand...
Click to collapse
Thanks youdoofus for trying to help. For me atleast it didnt get locked when i moved to Pie. I will try other methods.
I will try to root the phone for enabling volte, but the methods that i tried didnt work.
youdoofus said:
another user just posted up in another thread that they had a factory cricket phone that got unlocked, he put an at&t sim in it and it installed at&t apps and locked the phone to at&t FWIW
Click to expand...
Click to collapse
That's just weird.
joeldf said:
That's just weird.
Click to expand...
Click to collapse
yeah, sort of. The CSC's on these things are weird. Im starting to believe that these new versions of android are just like windows ISOs where they have all the versions compressed into one file and it uses a directory file to tell the firmware which version to install. Im sure a code writing dev can confirm or deny this thought, but at this point its merely a weak theory
2019-10-08_21:17:56 Device Info:
MAC : 44:91:60:6F8:11
MACs : 44:91:60:6F8:11 46:91:60:6F8:11
Root : false
VirtualMachine : false
build.characteristics : nosdcard
build.display.id : PPR1.180610.011.G960USQS6CSGB
build.fingerprint : samsung/starqltesq/starqltesq:9/PPR1.180610.011/G960USQS6CSGB:user/release-keys
build.host : SWDH7918
build.id : PPR1.180610.011
build.incremental : G960USQS6CSGB
build.release : 9
build.sdk : 28
build.tags : release-keys
build.time : 1563280950
build.type : user
build.user : dpi
clientidbase : android-samsung-ss android-tmus-us-revc
cpu.abi : arm64-v8a
cpu.abilist : arm64-v8a,armeabi-v7a,armeabi
cpu.abilist32 : armeabi-v7a,armeabi
cpu.abilist64 : arm64-v8a
hardware : qcom
iso-country : us
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product.board : sdm845
product.brand : samsung
product.device : starqltesq
product.manufacturer : samsung
product.model : SM-G960U
product.name : starqltesq
Time Used: 2.00 s
Have a carrier unlocked ATT device, and want to flash unlocked firmware.
Can someone explain in detail the steps to do this?
Randomtandem said:
Have a carrier unlocked ATT device, and want to flash unlocked firmware.
Can someone explain in detail the steps to do this?
Click to expand...
Click to collapse
I would also like to know that Bought note 10+ few days ago and didn't checked if it's debranded version. I have downloaded the newest Odin and newest firmware
Product code XEO
PDA N975FXXS1BSLD
CSC N975FOXM1BSL7
Is there anything important i should know before i proceed?
THX
Randomtandem said:
Have a carrier unlocked ATT device, and want to flash unlocked firmware.
Can someone explain in detail the steps to do this?
Click to expand...
Click to collapse
I'M NOT RESPONSIBLE FOR ANY DAMAGE CAUSED TO YOU DEVICE!
THIS IS THE PATH I TOOK.
I'll pass on to you what I did. I flashed over SPR unlocked.
1. Download frija, you can Google this. It's a neat tool to quickly download firmware.
Type in the model number of your phone, and add a 1 at the end... Example... I own the N975U, from Sprint. Add the 1 at the end for unlocked... N975U1. And in the CSC slot, type XAA.
XAA is unlocked CSC code for US.
Firmware should show last digits BSLD for January security patch and Android 10.
Unzip the downloaded firmware somewhere close. I did mine on the desktop.
2. Download Samsung Drivers and install.
3. Download Odin V3 V 3.13.1_3B Patched.
Add the files into Odin.
On the CSC, do NOT use Home CSC. Use the regular.
You absolutely have to factory reset your device when switching to Unlocked or vice versa. So you might want to backup using Samsung smart switch or Google. Which ever you prefer.
Do not add any user data when switching from carrier to unlocked.
4. Place phone into Download mode BEFOR plugging into computer.
5. At this point... Phone should be in download mode. 4 files should be added into Odin. No other changes in Odin should be made. And CSC should be regular and not Home CSC.
6. Plug phone into computer and see if you see the device in Odin.
If you see it, great. Proceed to flash.
Odin likes to verify for awhile so don't mind this. Leave it be. If it gets stuck more than 10 minutes saying verifying, you may need to Google the issue.
Once Odin says passed... You should be good to go.
Phone will reboot, phone will factory reset.
At this point, you should be done.
I'M NOT RESPONSIBLE FOR ANY DAMAGE CAUSED TO YOU DEVICE!
THIS IS THE PATH I TOOK.
You mention the CSC should be XAA, when it comes to ODIN you mention regular?
Can you clarify that part?
Add the files into Odin.
On the CSC, do NOT use Home CSC. Use the regular.
You absolutely have to factory reset your device when switching to Unlocked or vice versa. So you might want to backup using Samsung smart switch or Google. Which ever you prefer.
Click to expand...
Click to collapse
In addition, do I have to backup the contents (no user data on it currently)?
Randomtandem said:
You mention the CSC should be XAA, when it comes to ODIN you mention regular?
Can you clarify that part?
In addition, do I have to backup the contents (no user data on it currently)?
Click to expand...
Click to collapse
It's two different things that's being referred too. When you download the firmware there isn't just one and they are identified by CSC. TMB is for T-Mobile, CHA is Spectrum Mobile, SPR is Sprint.. to name a few.
In your particular case when you download the unlocked firmware you would search for the CSC "XAA" (without quotes) as this is the firmware from the unlocked note 10+
Second when you flash the firmware you need to place different files into the appropriate and applicable locations within Odin. One of those spots you place a file into is called "CSC".
Also no you don't need to backup anything if you don't have anything installed (or no userdata on it).
If you have further questions I would suggest you search this forum and/or Google. The question on flashing the N975U1 firmware onto the N975U has been asked before and covered in detail already more then once... So those other threads will be of help for you.
For those who aren't already aware, F926U is the model number of all of the US carrier versions of the Z Fold3. The F926U1 is the model number of the same device, but sold by Samsung SIM unlocked and with no carrier bloatware. Firmware is 100% interchangeable among these models: any U or U1 firmware version can be flashed to any U or U1 device at any time, assuming that you're not trying to downgrade the bootloader. A "U to U" or "U1 to U1" flash does not require a factory reset, but changing from one firmware to the other will require one. Also, 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.
Manual Odin flashing is designed for those who:
- want to manually update to a newer version of U firmware on their U device, either because they don't want to wait for their carrier's OTA or because OTAs aren't working on their device, or a different carrier got a new feature/patch before they did
- want to flash U1 firmware to their U device
- want to convert from U1 firmware to carrier U firmware
- want to convert from one carrier's U firmware (with all apps and bloatware) to a different carrier's U firmware (with all apps and bloatware)
For those who aren't already aware, anyone can now download firmware for almost any Samsung device any time that they want, via the various firmware download tools posted here on XDA like 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 they only provide whatever the latest/newest/current version is - nothing older. I have access to an internal Samsung firmware download tool that usually gets new versions before they hit the public firmware download tools, so that's where my files come from.
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 (or haven't done it in a long time), I recommend you consult one of those "beginner's" guides- there are tons of them here on XDA.
Happy flashing!
U firmware: https://www.androidfilehost.com/?w=files&flid=327754
U1 firmware: https://www.androidfilehost.com/?w=files&flid=327755
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. For those who have already made use of my previous threads for a different device and are upgrading, welcome back
- 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
- it's quite time consuming to download the files, zip them up, and upload them to AFH. And, I do threads like this for every single flagship model, so I won't be uploading every single version. The only full builds that I upload are ones where I get access to a new bootloader and/or Android version early, before they hit the firmware download tools.
- 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.
- Since AT&T doesn't allow their firmware to be publicly available (for any of their devices), I'll try to always upload at least one USERDATA per bootloader increment for AT&T (and Cricket, if they get this model). I'll also upload any full builds if AT&T is the only carrier to get that specific build, because you won't be able to find the files anywhere else.
- For identifying USERDATAS, and to know what region/CSC to use in the firmware download tools if you're downloading yourself:
AIO = Cricket (not available via firmware download tools)
ATT = AT&T (not available via firmware download tools)
BST = Boost Mobile
CCT = Xfinity Mobile (Comcast)
CHA = Spectrum Mobile (Charter)
DSH = Dish Network
TMB = T-Mobile
TMK = Metro PCS
USC = US Cellular
VZW = Verizon (available via firmware download tools, but Manual Entry is required - Auto will not work)
XAA = U1 firmware
Is there a T-Mobile version available yet?
ruthlessnature said:
Is there a T-Mobile version available yet?
Click to expand...
Click to collapse
Yep, firmware has been on Samsung's servers since last week
iBowToAndroid said:
Yep, firmware has been on Samsung's servers since last week
Click to expand...
Click to collapse
I downloaded the file from samefirm, and frija but did not get the carrier bloat or T-Mobile boot screen from either one. I have an unlocked version.
ruthlessnature said:
I downloaded the file from samefirm, and frija but did not get the carrier bloat or T-Mobile boot screen from either one. I have an unlocked version.
Click to expand...
Click to collapse
You need to make sure your CSC shows as TMB, and need to make sure you're flashing USERDATA too
iBowToAndroid said:
You need to make sure your CSC shows as TMB, and need to make sure you're flashing USERDATA too
Click to expand...
Click to collapse
That's strange, neither one I downloaded has TMB in the csc, do you have a link ?
ruthlessnature said:
That's strange, neither one I downloaded has TMB in the csc, do you have a link ?
Click to expand...
Click to collapse
I'm not talking about the firmware. I'm talking about the phone itself, in the Settings
Oh, I see, it doesn't change, shows xaa/xaa/xaa I downloaded the ATT userdata to flash and see if it changes it.
ruthlessnature said:
Oh, I see, it doesn't change, shows xaa/xaa/xaa I downloaded the ATT userdata to flash and see if it changes it.
Click to expand...
Click to collapse
If you want T-Mobile bloatware, you need to insert a T-Mobile SIM so that the CSC changes to TMB. And then you need to flash a U firmware with T-Mobile USERDATA
iBowToAndroid said:
If you want T-Mobile bloatware, you need to insert a T-Mobile SIM so that the CSC changes to TMB. And then you need to flash a U firmware with T-Mobile USERDATA
Click to expand...
Click to collapse
Thanks for the info, I couldn't get it to flash back to the u1 firmware until I downloaded the patched Odin. Then I was able to I put my Sim, the csc showed TMB and then I was able to flash the u firmware with the TMB userdata. Thanks again for your help.
ruthlessnature said:
Thanks for the info, I couldn't get it to flash back to the u1 firmware until I downloaded the patched Odin. Then I was able to I put my Sim, the csc showed TMB and then I was able to flash the u firmware with the TMB userdata. Thanks again for your help.
Click to expand...
Click to collapse
You're welcome!
ruthlessnature said:
Thanks for the info, I couldn't get it to flash back to the u1 firmware until I downloaded the patched Odin. Then I was able to I put my Sim, the csc showed TMB and then I was able to flash the u firmware with the TMB userdata. Thanks again for your help.
Click to expand...
Click to collapse
For anyone looking for that it's here: https://forum.xda-developers.com/t/patched-odin-3-13-1.3762572/
I'm getting a weird Complete(Write) Operation Failed error when flashing any tips?
NVM gotta have USB Debugging on
wschamps42 said:
I'm getting a weird Complete(Write) Operation Failed error when flashing any tips?
NVM gotta have USB Debugging on
Click to expand...
Click to collapse
Uhhhh what? Flashing is done in Download mode, not Normal mode
can we flash a different region firmWARE (UK / EUROPE) to the U1? Given the phones are all Qualcomm SD now
Drnms said:
can we flash a different region firmWARE (UK / EUROPE) to the U1? Given the phones are all Qualcomm SD now
Click to expand...
Click to collapse
Nope
I appologize for being the super noob. A couple questions.
Does using this process disable the cameras as mentioned in https://forum.xda-developers.com/t/unlocking-bootloader-will-disable-the-camera.4321957/page-.
You stated that there are tons of beginners guides. In doing searches I find multiple different guides with different completely different processes. Is there one that you recommend or works best?
My goal is to make my unlocked fold3 more usable on ATT/firstnet. There are multiple features I cannot use and I don't receive same call quality service as my wife's locked att fold3.
sllong said:
I appologize for being the super noob. A couple questions.
Does using this process disable the cameras as mentioned in https://forum.xda-developers.com/t/unlocking-bootloader-will-disable-the-camera.4321957/page-.
You stated that there are tons of beginners guides. In doing searches I find multiple different guides with different completely different processes. Is there one that you recommend or works best?
My goal is to make my unlocked fold3 more usable on ATT/firstnet. There are multiple features I cannot use and I don't receive same call quality service as my wife's locked att fold3.
Click to expand...
Click to collapse
You will not lose the cameras as you are flashing firmware not unlocking the bootloader.
sllong said:
My goal is to make my unlocked fold3 more usable on ATT/firstnet. There are multiple features I cannot use and I don't receive same call quality service as my wife's locked att fold3.
Click to expand...
Click to collapse
Under Settings-->About-->Software Information, what's the last line of your "Service provider SW ver" item?
iBowToAndroid said:
Under Settings-->About-->Software Information, what's the last line of your "Service provider SW ver" item
Click to expand...
Click to collapse
iBowToAndroid said:
/xaa/xaa/xaa
Click to expand...
Click to collapse