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Hello everyone.
I just bought what I thought it was an unlocked S20 Ultra over the internet and, nevertheless my sim card form my country works well (Im from México) the OTA updates dont work.
The last security update it has is from March 2020 and I have checked the system update option but it says that my phone is up to date.
I have seen that maybe that the most recent update can be forced using Odin but I dont know what firmware to download for my model so it can be updated regularly via OTA as I only have found firmware options for another USA Carriers that I dont have, and Im scared to brick it for choosing the wrong one.
Curiously enough, the phone model and IMEI correspond to the AT&T USA variation, however, the start up screen doesnt show up any AT&T logo and the phone doesnt have any bloatware from any carrier. So Im not sure if the phone was already flashed with some fw?
The model that it displays is SM-G988U and the S/W is G988USQU1ATBN'
Hope you can help me to have updates on my phone.
Thanks!
jonalara said:
Hello everyone.
I just bought what I thought it was an unlocked S20 Ultra over the internet and, nevertheless my sim card form my country works well (Im from México) the OTA updates dont work.
The last security update it has is from March 2020 and I have checked the system update option but it says that my phone is up to date.
I have seen that maybe that the most recent update can be forced using Odin but I dont know what firmware to download for my model so it can be updated regularly via OTA as I only have found firmware options for another USA Carriers that I dont have, and Im scared to brick it for choosing the wrong one.
Curiously enough, the phone model and IMEI correspond to the AT&T USA variation, however, the start up screen doesnt show up any AT&T logo and the phone doesnt have any bloatware from any carrier. So Im not sure if the phone was already flashed with some fw?
The model that it displays is SM-G988U and the S/W is G988USQU1ATBN'
Hope you can help me to have updates on my phone.
Thanks!
Click to expand...
Click to collapse
Your device is a US Branded Variant, most likely Verizon/ATT. Go to Settings, About Phone, Software Information, Service Provider Software Version. On the bottom row the last three letters will verify which carrier is branded. If it is in fact AT&T you can download the appropriate fw here. Be sure to select the appropriate carrier in the drop down menu but be aware AT&T typically doesn't offer it's firmware to be accessed online.
Download Samsung Galaxy S20 Ultra SM-G988U TMB USA (T-Mobile) G988USQU1ATBN firmware
Fast download latest Samsung Galaxy S20 Ultra firmware SM-G988U from USA (T-Mobile) with G988USQU1ATBN and Android version 10
www.sammobile.com
You MAY need to be on AT&T's US Network to receive OTA Updates but you should have no problem making and receiving calls and texts in Mexico.
varcor said:
Your device is a US Branded Variant, most likely Verizon/ATT. Go to Settings, About Phone, Software Information, Service Provider Software Version. On the bottom row the last three letters will verify which carrier is branded. If it is in fact AT&T you can download the appropriate fw here. Be sure to select the appropriate carrier in the drop down menu but be aware AT&T typically doesn't offer it's firmware to be accessed online.
Download Samsung Galaxy S20 Ultra SM-G988U TMB USA (T-Mobile) G988USQU1ATBN firmware
Fast download latest Samsung Galaxy S20 Ultra firmware SM-G988U from USA (T-Mobile) with G988USQU1ATBN and Android version 10
www.sammobile.com
You MAY need to be on AT&T's US Network to receive OTA Updates but you should have no problem making and receiving calls and texts in Mexico.
Click to expand...
Click to collapse
Thank you. I just checked and the last three letters are indeed ATT. That means that most likely I cant have fw updates or OTA updates as they dont offer their fw online? Searched on the website yu gave me but there is no ATT carrier option
jonalara said:
Thank you. I just checked and the last three letters are indeed ATT. That means that most likely I cant have fw updates or OTA updates as they dont offer their fw online? Searched on the website yu gave me but there is no ATT carrier option
Click to expand...
Click to collapse
You're most welcome. Verizon is in the drop down menu and since they've merged with AT&T it should be the appropriate FW but it doesn't load after selecting it which reflects AT&T's ongoing efforts to block updates outside of it's proprietary platform. If you're unable to access AT&T's network inside the US the other options are downloading the FW on Samsung's Smartswitch app or acquiring it on ATT/Verizon website. Good luck!
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
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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
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Click to collapse
Hi everyone,
I am planning to get an unlocked S22 (AT&T unlocked, fully paid off) from the USA to my country (India). The box says it is following:
Model: SM-S901U
S/W: S901USQU1AVA7
Even though it is unlocked, i can see the SM-S901U does not support 2 5G bands which are used my in country (unlike the generic unlocked SM-S901U1). My question is that,
1) Since the s22 is basically from samsung, with the carrier models having control over the software, will i be able to flash to the generic unlocked firmware and model SM-S901U1 and get support for the other 5g bands too (i see the generic unlocked version SM-S901U1 has the 2 other bands that i need)?
2) Will the hotspot work and will i be able to recive OTA updates?
3) And the main question, will i require an AT&T SIM for the flashing process?
I was digging around the ultra thread for some info:
OTA and Non-OTA Firmware for S22 Ultra SM-S908U and S22 Ultra SM-S908U1 Versions
See Post #2 and #3 for the Links to the Firmware All of the firmware posted here can be flashed on any U or U1 Device. Each of the firmware's are NOT carrier dependent and only has carrier labels listed in order to have an idea if you might get...
forum.xda-developers.com
If someone can help/guide me, i'd be great!
Thanks and Cheers!
1. You will be able to flash s901u1 firmware (you will need a patched version of Odin to do so) but it still will not have the 5g bands, it's a hardware thing.
2. Hotspot will still work and you will be able to receive OTA updates when on s901u1 firmware.
3. No you will not, even when the phone is locked you will still not require a sim
Kesh2cute said:
1. You will be able to flash s901u1 firmware (you will need a patched version of Odin to do so) but it still will not have the 5g bands, it's a hardware thing.
2. Hotspot will still work and you will be able to receive OTA updates when on s901u1 firmware.
3. No you will not, even when the phone is locked you will still not require a sim
Click to expand...
Click to collapse
Thanks for such a quick reply
I had thought that the bands were locked via firmware (was hoping that samsung gave control to the carriers to control the bands via software). Sadly that doesn't seem to be the case
Since the s901u1 has those bands available (i checked here: https://devicebeast.com/devices/samsung-sm-s901u1-galaxy-s22-5g-uw-dual-sim-td-lte-us-256gb), i guess that will be a better buy for 5G.
I have a paid-off Permanent Unlocked SM-G990U from T-Mobile. My carrier is US Mobile on the Verizon Network (CMDA). It does work on the T-Mobile Firmware but there is no Wi-Fi calling, MMS works but I can only receive MMS (can't send). It's not actually connected to CMDA according to AIDA64 and yet Verizon somehow still works, and also there is T-Mobile bloat, and software updates are slower than on an unlocked device. Even though the U1 has 2 sim slots but the U doesn't and the U does not have an unlocked firmware from what I know, would the U1 firmware still work fine with Cellaur and etc on the U fine despite having only 1 SIM card slot? Since I'm pretty sure the hardware between the U and U1 is the same otherwise.
CaptainChris2018 said:
I have a paid-off Permanent Unlocked SM-G990U from T-Mobile. My carrier is US Mobile on the Verizon Network (CMDA). It does work on the T-Mobile Firmware but there is no Wi-Fi calling, MMS works but I can only receive MMS (can't send). It's not actually connected to CMDA according to AIDA64 and yet Verizon somehow still works, and also there is T-Mobile bloat, and software updates are slower than on an unlocked device. Even though the U1 has 2 sim slots but the U doesn't and the U does not have an unlocked firmware from what I know, would the U1 firmware still work fine with Cellaur and etc on the U fine despite having only 1 SIM card slot? Since I'm pretty sure the hardware between the U and U1 is the same otherwise.
Click to expand...
Click to collapse
I've flashed U1 unlocked firmware on U carrier firmware before (S9+ days) so I'm thinking it still should be possible on modern devices, though you need patched Odin to do so (search for it on XDA/Google)
ShaDisNX255 said:
I've flashed U1 unlocked firmware on U carrier firmware before (S9+ days) so I'm thinking it still should be possible on modern devices, though you need patched Odin to do so (search for it on XDA/Google)
Click to expand...
Click to collapse
I will probably most likey back my data up try it to see if it works, if not then i can just revert to normal firmware
You can flash U1 rom without any problem. My device is from Verizon and I flashed successfully the U1 firmware. You will just need to choose correct CSC for your carrier
I would appreciate if anyone can point me to the right direction. I have 21FE G990U2 from AT&T, It is unlocked by AT&T.
All I need is working T-Mobile firmware or Samsung (no carrier branding) to flash. I tried multiple versions of U, U1 and U3 firmwares (all matching my current Binary -4) but no success.
I just would like to get rid of ATT bloat. I know I can uninstall it via ADB but I rather have firmware clean of it.
Any suggestion please?
Thanks
So am I right to assume that you are looking for a G990U2 TMB firmware with Binary 4, to flash on a G990U2 AT&T phone?
If so, then you can download it from the below link by clicking on "Download Samfw server" (G990U2OYN4EWC3, April 2023 update):
Download Galaxy S21 FE 5G SM-G990U2 (TMB) G990U2SQS4EWC3 in Samfw - Samsung firmware download
Galaxy S21 FE 5G SM-G990U2 (TMB - United States) G990U2SQS4EWC3 T(Android 13) samsung firmware download all model, lastest, fast update, completely free and fast speed in Samfw.com ✅
samfw.com
or if I am assuming wrong, can you please correct my understanding? As I do not have any practical hands-on experience with the USA models.
Shuhan44 said:
So am I right to assume that you are looking for a G990U2 TMB firmware with Binary 4, to flash on a G990U2 AT&T phone?
If so, then you can download it from the below link directly (G990U2OYN4EWC3, April 2023 update):
https://02-samsung.cloud/v2/IxJCDiMnLh8SLAo5IRtBAzwDMyMyCB4lFzssIDs2ByAzMUEgOzEUQDMQMCMBOyw/LiUzJjIXCDkuJC8/NDseIy8xIQYzOAIlPDAVHRIvMz81CAIkMwsuOB42FA00Nh4LNS8vFjIXLA0NFzE/PAMeOTMADTkDAC4mNBEaMCExQQEhJQUUHjFCMTs4BkIjCyI/Iws8MQEWCDAeCw0xCREHOTQbIyshAD4OIQAGLC44Hiw0ER4OMiUzLDIlDSs8AD4fJhsGOg8HCkA8AywnCRc+Di8LBxAzBy4RDxYpKTwkHjUeBylCJgceKTIXIUAJER4OMi8+AwMSMBsBAzY5LwNBJi8IMAQ4MTQUAQMgLyMsHjM7JDMHLzEjJDgAISk8PxQ9NTggQiYbLyUhJCEpMjsHJzw2KSceFy4QIzEvKw8WIAYhFh4JMjAeLDQsLCM0Gy45IzgGQiMDPB0jJCI/ARYFMCMiExM=
or if I am assuming wrong, can you please correct my understanding? As I do not have any practical hands-on experience with the USA models.
Click to expand...
Click to collapse
You are correct - I need T-Mobile (or carrier free) so I can utilize full carrier settings.
Thanks for the link, however above link gives an error when opening the page.
Nevertheless I will look for TMB firmware with CSC: G990U2OYN4EWC3 and post an update here
Flashed that and still has AT&T boot logo and all the apps
h078 said:
Flashed that and still has AT&T boot logo and all the apps
Click to expand...
Click to collapse
Well, I am sure that you have flashed by a Factory reset (Flashed CSC, not Home CSC in ODIN). The boot logo can be changed by rooting your device, also bloatware apps can be deleted via ADB command without rooting.. but you already have mentioned that you prefer not to proceed with those processes. So I am out of suggestions, sorry.
Just for my knowledge, after flashing the TMB firmware, now your settings> About phone> software information> service provider software version: 2nd line shows as TMB/ TMB/ AT&T?
(Also corrected the download link in my previous comment anyway).
Yes, you are correct i did flash CSC, not home CSC. Then I reflashed w home CSC but software still says ATT/ATT/ATT.
Moreover on Bootloader screen says "carrier ATT" - I have never seen that before on any Samsung phone that I had. I have no clue how did they lock up device that well. As for removing software via ADB that is not a problem, but ATT locks network selection mode so you cant choose between 5G, LTE, 3G etc..
TMobile in US still supports EDGE and sometimes it comes handy - whereas ATT has only LTE and 5G as they re-farmed EDGE and 3G/HSPA frequencies
h078 said:
Yes, you are correct i did flash CSC, not home CSC. Then I reflashed w home CSC but software still says ATT/ATT/ATT.
Moreover on Bootloader screen says "carrier ATT" - I have never seen that before on any Samsung phone that I had. I have no clue how did they lock up device that well. As for removing software via ADB that is not a problem, but ATT locks network selection mode so you cant choose between 5G, LTE, 3G etc..
TMobile in US still supports EDGE and sometimes it comes handy - whereas ATT has only LTE and 5G as they re-farmed EDGE and 3G/HSPA frequencies
Click to expand...
Click to collapse
I do not get why the CSC can never be changed, even after flashing the complete firmware... must be an ATT thing!
Anyway, to change the csc only, there is another very quick & easy method. It takes only 2/3 minutes; no flash or factory reset is required. You have to download and install a small software "SamFW Tool" on your pc/laptop (may need to disable the antivirus during the download/install process). Once done, connect the phone and enable USB debugging mode. Open the software, under the ADB tab, click Change CSC, from the dropdown list select TMB and click Change. The phone will restart and CSC "Should" change to TMB/TMB/ATT.
Here is the download link for the software:
https://www.mediafire.com/file/upaiwadhmstm6js/SamFwToolSetup_v4.6.zip/file
That did the trick. I have T-Mobile CSC now
Thanks a lot
h078 said:
That did the trick. I have T-Mobile CSC now
Thanks a lot
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Click to collapse
Great!
But still, that's only one part of the final solution I think. Your target was to replace the complete firmware from ATT to TMB, right? Since the CSC is now changed to TMB, I think you can give it another try via ODIN to install the TMB firmware now (only if you want). I am not confident that it will work now, but still, one last try should not be much of a hassle.
I think that these multi CSC contain all US carrier customizations....When I changed it to TMB it shows TMB/TMB/ATT and loads bootlogo as well as TMobile apps... I guess it is similar as Blackberry used to be back in the days...Depending which carrier SIM used it loaded proper settings from the firmware...
I have flash my METROPCS G990U2 to G990U3,other sim card work fine,but t mobile sim card does not work ,can someone help me?I already change CSC to xxa,but still no internet,I do have sginal bar