G988U and G988U1 Firmware Links and Flashing Discussion Here

[denpad2010]

No. That's a loophole that only exists with the S10 5G. I can provide a recommendation for a professional business to do the SIM unlock, if needed

OK understand thanks.

 

[robcop19]

Metro has never sold the S20 Ultra, so no Metro USERDATA exists for that model. You'll have to go with T-Mobile firmware

I didn't find a TMK CSC file anyway, it was just in the OP. I just download the 988U TMB and the 988U1 XAA today so I will be flashing it tonight to see. Thank you guys for the confirmation and support

 

[iBowToAndroid]

I didn't find a TMK CSC file anyway, it was just in the OP.

When I do a new thread, I tend to just copy and paste the OP from an earlier thread/model. Sorry for the confusion - I'll delete TMK from the CSC list

 

[robcop19]

So I did the 1st flash to U1 and it passed (non-HOME) rebooted and put in my Metropcs Sim but i cant get the carrier settings install to come up like I did when i first bought it. Also, the device software still shows VZW VZW VZW but it does show its a SM-G988U1. Shouldnt it have changed to XAA XAA TMB or something not VZW?
*Even Odin mode still shows *carrier Verizon
With that aside, I tried then switching to U TMB firmware anyway, but now its failing and wont go through

 

[iBowToAndroid]

So I did the 1st flash to U1 and it passed (non-HOME) rebooted and put in my Metropcs Sim but i cant get the carrier settings install to come up like I did when i first bought it. Also, the device software still shows VZW VZW VZW but it does show its a SM-G988U1. Shouldnt it have changed to XAA XAA TMB or something not VZW?
*Even Odin mode still shows *carrier Verizon
With that aside, I tried then switching to U TMB firmware anyway, but now its failing and wont go through

If you mean that you don't see the popup to install the new carrier settings, idk if I've ever NOT seen that, on U1 firmware. So that's kind of odd. Which U1 build did you flash?

Did you have a SIM inserted when you did the flash? That may be why the service provider codes didn't change

And in order to diagnose why the U flash is failing, we need more detail

 

[robcop19]

If you mean that you don't see the popup to install the new carrier settings, idk if I've ever NOT seen that, on U1 firmware. So that's kind of odd. Which U1 build did you flash?

Did you have a SIM inserted when you did the flash? That may be why the service provider codes didn't change

And in order to diagnose why the U flash is failing, we need more detail

Ahh I did leave my metro sim card in while flashing. That could be be it
I downloaded the latest U1 XAA from Frija and same for the U TMB.

If I try again tonight, flash the U1 firm without a Sim in it, then turn it on, and then install the sim? I've had it come up just popping it in without turning the device on so that's how I've been trying it

I tried the U TMB firmware after flashing U1, included the USER DATA and non HOMECSC, and when it restarted, the Verizon bloat came up and carrier info
I just flashed back to U1 for now

 

[iBowToAndroid]

I tried the U TMB firmware after flashing U1, included the USER DATA and non HOMECSC, and when it restarted, the Verizon bloat came up and carrier info
I just flashed back to U1 for now

The Verizon bloat came back because you never got that popup. But remember that even if you had, you'd probably still get Verizon bloat. I think a T-Mobile SIM would need to be inserted after you flash U1, and then flash T-Mobile U + USERDATA, in order to get T-Mobile bloat

 

[robcop19]

The Verizon bloat came back because you never got that popup. But remember that even if you had, you'd probably still get Verizon bloat. I think a T-Mobile SIM would need to be inserted after you flash U1, and then flash T-Mobile U + USERDATA, in order to get T-Mobile bloat

Good idea, I'll try again with the metro sim out and insert it after flash and booting U1, since I don't have a t-mobile sim and it came up the 1st time.
If not I'll go buy one and try before flashing the U + USERDATA

 

[alirz]

ok so i had recently updated my originally XAC s20+, but i had been running the XAA Android 10 fw on it for few months on t-mobile. OTA updated to Android 11 few days. All has been fine.
Today decided to do a re-flash as i wanted to start fresh. Using Frija, auto downloaded "SM-G986U1_10_20201201141035_064p4luguk_fac" XAA CSC. Flashed it, all fine except that i ended up with some Purple themed BTS edition phone. Had to google WTF that was.
Anyways, redownloaded fw using manual settings. "SM-G986U1_1_20201127100433_iecnqh4r70_fac". Trying to flash it using moded Odin 3.14.1. However it gets stuck at flashing "super.img". Tried, to flash few times, re-downloaded, even tried flashing that BTS edition fw that had worked. But no luck . Now im stuck with a dead phone that wont boot. Goes into emergency recovery mode but i can still get it download mode, start the flash but still end up getting stuck at super.img..
Any ideas, would really appreciate it!!!!

Message on phone screen shows " Partition super", Reason SUPER Build-id does not match with the reference
(SUPER) :CUSTOM, BOOTLOADER : 36238503

NOTE: not sure what that custom bootloader message means,. i ve ever flashed anything but stock fw imaged on the phone ever.
Wondering if i should try the NAND ERASE or the -re-partition options in Odin???

 

[robcop19]

Dial *#272*IMEI# (replace IMEI with your IMEI number) and it will bring up the CSC selector screen. Choose TMB, select install, choose "Sales&Network code", and hit 'OK'. Your phone will reboot and have the T-Mobile firmware. This saves you from having to flash firmware.

this phone code does not work with the verizon model. there are a few people here and in android central forum who can vouch for that

 

[robcop19]

The Verizon bloat came back because you never got that popup. But remember that even if you had, you'd probably still get Verizon bloat. I think a T-Mobile SIM would need to be inserted after you flash U1, and then flash T-Mobile U + USERDATA, in order to get T-Mobile bloat

Just tried a coworkers TMB sim but i still did not get apply carrier settings. I flashed U1 4 times and inserted the sim card at different times to try and get it. I installed it after the full boot into the home page, then installed it at the start screen (setup), then I tried installing it when the samsung boot logo comes up, lastly i installed right as the phone rebooted and still i cant get it go off of VZW/VZW/VZW or get the install carrier settings. I feel like its a verizon thing.

ps the bloat does disappear and boot is brandless but no TMB settings or info

Edit: I tried a couple other combinations of the order of sim insertion, long wait, factory resetting ( ive been flashing for about 4 hours this morning) but i cant get the csc to change off of VZW.
So for now, I'm just leaving it on the U1 (VZW/VZW/VZW) and at least the bloat is out.
** ON THE LOOKOUT IF ANYONE WANTS TO TRADE FOR THEIR UNLOCKED T-MOBILE

 

[iBowToAndroid]

AT&T USERDATA for Android 11 has been added - build TL1.

Someone else already beat me to uploading the full TL1 firmware package on AFH, so you can download that if you need the rest of the Odin files.

From now on, you can expect AT&T USERDATAs to be added right away, when new bootloaders and new Android versions are released