Database Develop

Accidentally bought G970U instead of G970U1

As per the title, bought an unlocked G970U instead of U1 by mistake. Should I expect a Verizon splash screen greeting me in the bootloader? I don't wanna see any branding anywhere in my phone. Can I get rid of any of that flashing U1 firmware?

redsmith said:
As per the title, bought an unlocked G970U instead of U1 by mistake. Should I expect a Verizon splash screen greeting me in the bootloader? I don't wanna see any branding anywhere in my phone. Can I get rid of any of that flashing U1 firmware?
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Which G970U phone you have bought. If it was a Verizon branded, then their logo should greet you If you bought T-Mobile variant, then its logo will be present while booting the phone. Flashing is possible and it depends which carrier you have. Also don't you have the phone in hand yet?

Charkatak said:
Which G970U phone you have bought. If it was a Verizon branded, then their logo should greet you If you bought T-Mobile variant, then its logo will be present while booting the phone. Flashing is possible and it depends which carrier you have. Also don't you have the phone in hand yet?
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Yeah, the phone hasn't arrived yet. In the pictures I can see the box has no carrier logo, but I'm guessing it's Verizon because I haven't seen a Verizon branded box yet. Also, the box definitely says G970U.
I've been a Nexus/Pixel user all my flashing life, so I'm well versed in the fastboot/adb dark arts. How does this compare to Odin? There are so many new terms that I'm still trying to understand: CSC, HOME CSC, USERDATA, etc. Is there any guide I can follow to flash my incoming phone to U1 firmware?

redsmith said:
Yeah, the phone hasn't arrived yet. In the pictures I can see the box has no carrier logo, but I'm guessing it's Verizon because I haven't seen a Verizon branded box yet. Also, the box definitely says G970U.
I've been a Nexus/Pixel user all my flashing life, so I'm well versed in the fastboot/adb dark arts. How does this compare to Odin? There are so many new terms that I'm still trying to understand: CSC, HOME CSC, USERDATA, etc. Is there any guide I can follow to flash my incoming phone to U1 firmware?
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The T-Mobile version is also G970U, so it can be pretty much any carrier. USERDATA file is present in carrier firmware, if you flash unlocked firmware you won't need/have this file.
Link below is for S8, but works for S10 as well. Of course you would need to use firmware files for your phone. I would also use instructions under "Flashing standard firmware" first using Standard Odin. If you get an error when staring to flash, then use (Patched) Prince Comsy's Odin.
https://forum.xda-developers.com/galaxy-s8/how-to/snap-guide-flashing-standard-fw-carrier-t3625817

Charkatak said:
The T-Mobile version is also G970U, so it can be pretty much any carrier. USERDATA file is present in carrier firmware, if you flash unlocked firmware you won't need/have this file.
Link below is for S8, but works for S10 as well. Of course you would need to use firmware files for your phone. I would also use instructions under "Flashing standard firmware" first using Standard Odin. If you get an error when staring to flash, then use (Patched) Prince Comsy's Odin.
https://forum.xda-developers.com/gal...rrier-t3625817
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Thanks a lot. One last question. I'm based in Mexico (we only get Exynos here), so I got a U version to get the Snapdragon CPU. Obviously I don't want any US carrier branding/blotware in the phone since I couldn't benefit whatsoever from it. What about OTA's, though? Will I get them whenever Samsung releases an update for U1? Or will that depend on my carrier? Should I update monthly using Odin? Do I have to factory reset? So many questions :silly:
The link you provided doesn't work, btw. But I've since found some other Odin guides. Thanks!

redsmith said:
Thanks a lot. One last question. I'm based in Mexico (we only get Exynos here), so I got a U version to get the Snapdragon CPU. Obviously I don't want any US carrier branding/blotware in the phone since I couldn't benefit whatsoever from it. What about OTA's, though? Will I get them whenever Samsung releases an update for U1? Or will that depend on my carrier? Should I update monthly using Odin? Do I have to factory reset? So many questions :silly:
The link you provided doesn't work, btw. But I've since found some other Odin guides. Thanks!
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I corrected the link in case you need it.
To answer OTA question: I had unlocked U1 model of S8 and when I flashed it with T-Mobile firmware then my phone got OTA from T-Mobile when they release it. I assume if you have carrier branded phone and flash it with U1(XAA) firmware then most likely your phone will get updates when Samsung releases them. You won't have to use Odin every time there is an update if you flash properly. Also, it would be advisable to flash using CSC file instead of HOME CSC, so your phone would be wiped. It is because you change firmware and want your software to be fully compatible. After flashing and you check your phone's software update and see that is shows "not compatible or something similar", then I would just suggest you to do "reset"(factory reset) from setting and after you setup your phone, that message will disappear. Also don't do any software update before flashing as you phone may get a fresher firmware than the one you might be trying to flash.
1) Check your current phone firmware
2) Download firmware you want, but if you can, get the firmware that is a previous one than the current one, so you will check to see how your phone gets OTAs
3) Flash using Odin
4) After that disconnect and let the phone do its thing
5) Set it up and check to see if software update section in settings don't give you any messages such as the one I outlined above, if it does, just factory reset the phone

Firmware Flash Compatibility Question

I have an AT&T variant of the S10 (SM-G973) and I wanted to flash the stock One UI ROM that is found on the unlocked S10 (SM-G970). Does anyone know if the firmware for the 970 can be flashed successfully on a 973 phone?

kdog2021 said:
I have an AT&T variant of the S10 (SM-G973) and I wanted to flash the stock One UI ROM that is found on the unlocked S10 (SM-G970). Does anyone know if the firmware for the 970 can be flashed successfully on a 973 phone?
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Why would you want to flash G970 firmware onto G973 phone? Can't you just flash G973 firmware onto your G973 phone?

My understanding is that the G973 firmware has the AT&T Bloatware and some functions/tiles hidden (like the mobile data tile for quick settings). I'm hoping I can do the stock firmware from G970 to not deal with the bloatware and have more access.

kdog2021 said:
My understanding is that the G973 firmware has the AT&T Bloatware and some functions/tiles hidden (like the mobile data tile for quick settings). I'm hoping I can do the stock firmware from G970 to not deal with the bloatware and have more access.
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Have you thought about using unlocked G973 firmware? G970 is S10e model

Thank you, Charkatar. I bet if I paid more attention in my search I would have noticed the difference. Next step, find and flash the unlocked firmware!

kdog2021 said:
Thank you, Charkatar. I bet if I paid more attention in my search I would have noticed the difference. Next step, find and flash the unlocked firmware!
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Use SamFirm tool to download firmware you need ( I have attached zip file) and check out example image on how to search and download firmware your phone needs.
So under model, you would put SM-G973U1 (which should be unlocked model) and region you would put XAA (unlocked model) and click "check update" IF YOUR MODEL IS DIFFERENT FROM MY EXAMPLE, THEN ENTER THE CORRECT MODEL AND REGION YOU NEED

Charkatak said:
Use SamFirm tool to download firmware you need ( I have attached zip file) and check out example image on how to search and download firmware your phone needs.
So under model, you would put SM-G973U1 (which should be unlocked model) and region you would put XAA (unlocked model) and click "check update" IF YOUR MODEL IS DIFFERENT FROM MY EXAMPLE, THEN ENTER THE CORRECT MODEL AND REGION YOU NEED
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I'm on a Mac and can't open the windows .exe files. I did find a slight work around with Samsung SmartSwitch. Work has been so busy I haven't had time to find and download the U1 firmware for the S10. I"ll let you know how it goes!

N-960n flash to stock att firmware

So after a bit of research it looks like it is not possible to flash stock att firmware to the n-960n. Does this sound right. I'm leaving Korea and will be going back to att when I get home.

Noteuser22 said:
So after a bit of research it looks like it is not possible to flash stock att firmware to the n-960n. Does this sound right. I'm leaving Korea and will be going back to att when I get home.
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Not officially, no. However I don't think samsung pay will work in the US on a Korean Note9 anyway, so if you unlock the bootloader and root you can flash a CSC changer to get all of the ATNT features (including voLTE/voWIFI). You will void your warranty and lose knox/Samsung Pay.

Noteuser22 said:
So after a bit of research it looks like it is not possible to flash stocksevice. att firmware to the n-960n. Does this sound right. I'm leaving Korea and will be going back to att when I get home.
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you can't flash snapdragon firmware on a exynos device. but regardless, just pop the sim and be happy. no need to change CSC for voice and data.
but if you do root as the suggested then you can get the additional csc features by flashing a csc pack.

bober10113 said:
you can't flash snapdragon firmware on a exynos device. but regardless, just pop the sim and be happy. no need to change CSC for voice and data.
but if you do root as the suggested then you can get the additional csc features by flashing a csc pack.
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Exactly which CSC pack can I use and where do I get it?
I am in the exact same situation: Korean SM-G960N, rooted, on AT&T's network with Android 9.
Do I extract the CSC from the latest SM-G960U1 file and flash that with Odin? Can I use an Android 10 CSC on an Android 9 phone?

sleepeeg3 said:
Exactly which CSC pack can I use and where do I get it?
I am in the exact same situation: Korean SM-G960N, rooted, on AT&T's network with Android 9.
Do I extract the CSC from the latest SM-G960U1 file and flash that with Odin? Can I use an Android 10 CSC on an Android 9 phone?
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Are you looking for AT&T specifically? Cause from what I know they don't release them. I used N960U since the 1 is the unlocked version software. Sorry I can't be much help beyond what I know of AT&T files. Best of luck.

macgyver40 said:
Are you looking for AT&T specifically? Cause from what I know they don't release them. I used N960U since the 1 is the unlocked version software. Sorry I can't be much help beyond what I know of AT&T files. Best of luck.
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Thanks for the respopnse. Well the link from SamMobile has the CSC in it. I tried to flash the HOME_CSC file via Odin and the Odin PrinceComsy version (I don't think this works on Android 8) and it would not flash.

sleepeeg3 said:
Thanks for the respopnse. Well the link from SamMobile has the CSC in it. I tried to flash the HOME_CSC file via Odin and the Odin PrinceComsy version (I don't think this works on Android 8) and it would not flash.
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The last 2 times I updated I used the Comcast files to update my note9 i got from AT&T i am currently on the newest release this way and everything seems to work at least the limited options I use from AT&T.

Flashong stock rom on carrier device

Is it possible to flash stock s10 rom on a s10 which is purchased from Verizon without tripping Knox. The device is recently unlocked by the carrier.
I want to remove the Verizon version of the rom because of the Verizon bloat and services (not saying that stock is clean but it's less crappy).
Thanks in advance

You mean you want to go from Verizon stock to stock Samsung unlocked? Yes, you can do this by downloading the U1 firmware and using the patched version of Odin to flash it with. Note that it will erase everything and you will lose stuff like wifi calling.

StoneyJSG said:
You mean you want to go from Verizon stock to stock Samsung unlocked? Yes, you can do this by downloading the U1 firmware and using the patched version of Odin to flash it with. Note that it will erase everything and you will lose stuff like wifi calling.
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Yes thats what I want to do.
Can you please point me to the links for the firmware download.
Thanks

StoneyJSG said:
You mean you want to go from Verizon stock to stock Samsung unlocked? Yes, you can do this by downloading the U1 firmware and using the patched version of Odin to flash it with. Note that it will erase everything and you will lose stuff like wifi calling.
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no and yes
no it wont factory reset as you do not need to flash the CSC, only the HOME_CSC. No factory reset required. Otherwise youre correct
[email protected] said:
Yes thats what I want to do.
Can you please point me to the links for the firmware download.
Thanks
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here ya go https://www.sammobile.com/samsung/galaxy-s10/firmware/SM-G973U1/XAA/download/G973U1UES2CSL1/309883/
use the Frija tool or Samfirm to download at 4 to 5 times the speed from the regular site

G991U and G991U1 Firmware Links and Flashing Discussion Here

For those who aren't already aware, G991U is the model number of all of the US carrier versions of the S21. The G991U1 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 pay for a subscription to a site that gets the official releases (usually) before they hit the 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=322084
U1 firmware: https://www.androidfilehost.com/?w=files&flid=322085
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 to an S21, 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 Sx and Note x 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)
SPR = Sprint
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
- the correct procedure for switching from one carrier's firmware to another is:
1. Flash full U1 firmware package including non HOME CSC
2. Upon boot, insert a SIM of the carrier whose firmware you want
3. Watch for the popup that says "reboot to apply new carrier settings" etc, and do it
4. After that restart completes, reboot back to Download mode and flash the full U firmware package, with the USERDATA file of the carrier whose firmware you want

Initial U firmware and AT&T USERDATA are posted, along with U1 firmware. U firmware is not yet accessible in the firmware download tools like SamFirm and Frija, but if anyone wants a different carrier's USERDATA (for flashing bloatware to a U1 device or for converting a U device from one carrier's bloatware to a different one), let me know and I'll get it for you

Thanks for the firmware links!
Odin blocks flashing from U to U1 or U1 to U. To successfully flash: Use the patched/modded odin found here.
Patched Odin 3.13.1
For those looking for a modified, modded, or patched odin that is a newer build than all the fake and renamed prince comsy 3.12.3 versions floating around. I patch recent Odin versions to offer similar functionality to the princecomsy; in that...
forum.xda-developers.com
realbbb
Sinker Slime

Anyone from T-Mobile move to u1? If so better or worse. Not sure if I should make the move. Thanks

Is the Verizon userdata available? I have an ATT version and I want to switch to Verizon.
Thanks.

N0v1c3 said:
Is the Verizon userdata available? I have an ATT version and I want to switch to Verizon.
Thanks.
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U firmware is available via the various firmware download tools like SamFirm and Frija

Hey guys, I'm curious if anybody could help me fix an issue I'm having with flashing. I'm trying to flash from the U variant to the U1 but it seems to be csc locked to TMB. I've tried multiple firmwares, pulling the sim out before flashing and even flashing back and forth from U to U1 I can't seem to get the carrier update pop-up at all. I'm kinda at a loss and would appreciate any help you guys could give me

braxf said:
Hey guys, I'm curious if anybody could help me fix an issue I'm having with flashing. I'm trying to flash from the U variant to the U1 but it seems to be csc locked to TMB. I've tried multiple firmwares, pulling the sim out before flashing and even flashing back and forth from U to U1 I can't seem to get the carrier update pop-up at all. I'm kinda at a loss and would appreciate any help you guys could give me
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Are you saying the service provider codes stay as TMB/TMB/TMB, even after you flash U1?

Yes the csc is locked to TMB for some reason. I did the full csc non home flash several times with no luck

braxf said:
Yes the csc is locked to TMB for some reason. I did the full csc non home flash several times with no luck
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S21 Ultra users are reporting the same thing. Not sure what's going on with T-Mo this time

Yes I saw the thread. Do you think a repartition could possibly work? It's much more in depth but it would be a completely clean install

braxf said:
Yes I saw the thread. Do you think a repartition could possibly work? It's much more in depth but it would be a completely clean install
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If you know how to repartition it, go for it

I don't, I read that you need a pit code. How would you go about getting that?

braxf said:
I don't, I read that you need a pit code. How would you go about getting that?
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If you mean a PIT file, that's already included in the CSC file. So that is flashed, if you flash that file

So it's relatively the same concept but you use the csc file in the pit section?

braxf said:
So it's relatively the same concept but you use the csc file in the pit section?
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Huh? No. The only thing that can go in the pit section is the pit file

Oh I misunderstood, you're saying when you flash the csc it automatically flashes that pit file?

braxf said:
Oh I misunderstood, you're saying when you flash the csc it automatically flashes that pit file?
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Yep

Update: I'm completely lost. I downloaded the Canadian firmware which gave me the xac csc then I flashed back to U1 which also updated to Xaa. But I still showed only t-mobile n41 and 71 bands so I flashed back to U with Verizon bloatware and now I have a Verizon U firmware with xaa csc and still only showing t-mobile bands

braxf said:
Update: I'm completely lost. I downloaded the Canadian firmware which gave me the xac csc then I flashed back to U1 which also updated to Xaa. But I still showed only t-mobile n41 and 71 bands so I flashed back to U with Verizon bloatware and now I have a Verizon U firmware with xaa csc and still only showing t-mobile bands
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I don't guarantee that any particular bands will work on any particular firmware. Also, carriers don't use every single band in every single area