yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
That's a known issue with recent versions of the U1 firmware. If you don't get the popup, it won't convert
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] jmendozanunez:
im having same issue i fallowed exact steps to fash U1 XAA, but it never prompts pop up and csc stays as TMB even after U1 , is there any fix for this? thanks
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] imneveral0ne:
How is this still an issue. I can't get the pop up for the life of me.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] creative70:
I flashed G988U1 firmware on G988W without erasing and 5G/WifiCalling were working on my S20 Ultra. However, when I erased the device and installed with CSC and not the home CSC, the network would not connect to 5G and just LTE+. This is ridiculous as Rogers is not letting you enjoy enhanced features for devices purchased outside of Canada. Now I'm back to G988W.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] mchu519:
I just realized a few days ago my ATT variant Galaxy S20 Ultra was still on the June 2020 update. I realized I couldn't get OTA update. Thought I dive back into the good old ODIN and FRIJA to get the latest update and while at it flash to the T-Mobile CSC. I got the Odin3 v3.14.1_3B_PatcheD.exe and and flashed the version shown in the attached screenshot.

I was able to successfully update to the latest with "Android security patch level 10/1/2021". Sadly the "Service provider software version" is still ATT/ATT/ATT and not TMB.

I'm just glad I was able to get the latest update. Would've been nice to get rid of all the ATT bloatware since I haven't been on the ATT network for awhile.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
All of the information for changing from one carrier's bloatware to another, as well as completely removing bloatware, is right in the OP
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] getm0ney:
I have a TMO g988u on Android 11. I followed the steps and flashed it to u1 but never got the Sim pop up.

Flashing it back to 988u with ATT userdata and it's still got TMO splash and whatnot. I need ATT wifi calling cause service sucks at my house, is it not possible anymore?!
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
If you don't get the popup, then no, there's not much else you can do to force the bloatware conversion. You could try flashing and resetting with and without the SIM inserted - it may make a difference
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] Predakays:
Hi! Maybe this is gonna be a dumb question but I just want to be sure before I make the change.

I've got a S20 ultra 5g sm-G988U... It's from AT&T. It was locked but I got the unlock code and now It's unlocked.

I couldn't get the newest updates because I'm not in USA. So I updated manually with ODIN.

My question is:

If I change my device to Sm-G988U1 I'm going to get OTA updates from Samsung? Like any other exynos samsung?

Also

Change the version from SM-G988U to SM-G988U1 WILL AFFECT THE NETWORK CONNECTION? I mean lost signal connection to my current carrier (outside of USA).
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
1. I don't know if you'll then get OTA updates. It depends on what the Service Provider codes change to, after the flash. If they remain as ATT, then you probably will not get updates, and you'll have to manually flash every update. If the codes change to something else, then you probably will get updates

2. No, it shouldn't affect the network connection
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] GSXeclipsePSI:
Happy New Year everyone!

I get impatient easily and have free time on my hands.

I would like to use the U1 beta One UI 4 on my 988U

So I've done tons of flashing on Samsungs so I know how to do everything. Just want clarification on the process.

So download the latest U1 with XXA? or my carrier TMB (don't mind the bloat)

Then do I start flashing the Beta releases? 1-2-3?

will any of this trip KNOX? I don't believe it would since it's stock.

I really enjoy Samsung Pay etc and don't wanna risk it.

Can someone use my above plan out into a process of steps that verifies how I am doing it?

1- Flash newest U1 (XXA or TMB?) ROM via Odin patched using HOME CSC to keep data (Already made recovery with SmartSwitch)

2 - Start flashing Beta 1, 2, 3 which should keep my data (I can do this via SDcard or Odin?)
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
This thread is only for official releases, not betas
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] GSXeclipsePSI:
Okay so in Frija download U1 firmware with CSC code TMB since that's my provider or leave it unlocked. The phone is set to sprint/tmobile
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
Your question is better suited for a thread specifically about beta firmware
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] gregou:
I have a question : So basically i have the G988U1 model and i live in France. I would like to get Android 12 as Samsung doesn't seems in a hurry to released it for this model... when the Verizon variant already got it.. which is dumb but anyway..

So i downloaded the U VZW Android 12 firmware on Frija, if i flash the U VZW firmware on my U1 model, all will be ok right ? (i don't any VZW Sim card obviously so i don't know it's mandatory to get this flashing process working...

Any idea ?
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
Yes, it'll be fine
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] begela10:
hello. i have s20 ultra SM-G988U1 Product code XAA

Can i install SM-G988U Product code VZW firmware? will there some cellular connection problem or will the phone locked in verizon?
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
1. Yes, you can install it

2. No, you should not have a cellular connection problem

3. No, the phone won't get locked to Verizon
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] umz_786:
Is root working with android 12? G981U1
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
Your device has to be on bootloader 1 in order to unlock the bootloader, and therefore root. Once you're already unlocked + rooted, then you can flash a modified firmware that will allow you to retain unlock + root, while upgrading to newer versions.

But if your device already has Android 12 and has never been bootloader unlocked or rooted, then no, there is no working method
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] umz_786:
anyone get esim activated with A12?
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] johnxarma:
Hey guys. I have a G988U at&t unlocked model and I'm stuck on Android 10 march update. Can I flash a U1 unlocked firmware and if I can do that, will I get software updates regularly? Thanks in advance!
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
Yes and Yes
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] devasenan200:
Can I flash U1 firmware on AU carrier unlocked japan galaxy s20 5g SCG01 , snapdragon variant..so that it can be converted to SM981U1
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iSaad007:
Can we install any other global firmware?

S20 SCG01 Japan Au variant, to unlock the esim option.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
eSIM is already available, if you have the most recent update installed.

No, you cannot flash Japanese firmware to a North American device
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iSaad007:
My bad.

I mean to say, can I flash any global roms to Japanese device (S20 SCG01 Japan Au variant). In order to unlock E-sim option.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
I have no idea because this thread is not for that model
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iSaad007:
PS: I saw someone succeed in flashing. But he didn't confirm if E-sim unlocked or not.

https://xdaforums.com/t/convert-scg...81u-b-root-without-root.4495083/post-87463257
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
Then go ask him in that thread, since that thread is specifically for that model
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] trung_anh:
I have G988U1

Will i lose data or have anyproblem when flashing G988U(T-Mobile) to get One UI 5 early.

And can i change back to G988U1 after they release it for G988U1?
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
1. You probably won't lose any data, as long as you flash HOME CSC and not the regular one, and don't flash USERDATA. But no guarantees

2. Yes, you can change back
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] rgonzo16:
Hi

Did you know a way to unlock the sim from a us carrier (Verizon) on a easy way? I am from a different country as US, so I have a lot of problems to finding a way to unlock the sim .

I had already try to paid the unlock services of some webservices and doesn't work at all.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
Easy? Yes.

Cheap? Maybe or maybe not, depending on the phone's current software version
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] rgonzo16:
Ok, the current version one ui 5, Android 13, g988u1ues3gwa2.

Plis can you guide me to make the unlock for the sim?

Thank you
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] rgonzo16:
i had already instal de XAA ROM but the service provider software doesnt change from VZN
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
Ohhh it's fully updated. That's too bad, because then it will be very expensive to unlock
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] grantl6:
Hey there, I'm the guy from the g981 thread. Do you possibly have the ATT userdata that will pass the md5 check for the g988 as well? Thanks and sorry for the trouble
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
If you want 12.0, there's already one uploaded
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] danon.brown:
Can this be done with a virtual machine running windows?
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
As long as it's a properly working one, should be fine
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] LRG_2309329032:
Just wanted to say a couple things. First, thanks for the work the OP and others have put in making this info and the ROM's available!

Second, it's been a while since I've flashed a ROM so I was a little rusty, here's a couple tips that may help others. There's no power button, obviously. Volume down and Bixby key force power off. Volume up and Bixby key boot the phone into recovery mode. At one point I ended up with a failed copy to the phone from Odin that horked things up, got a checksum failure. At that point Odin wouldn't download any of the images. I used the patched version of Odin (several threads with it easily searchable on XDA). The patched version fixed it (I think it bypasses some of the safety checks) and I was good to go again.

Like some others, I was having trouble getting the carrier firmware to stick, I kept ending up with XAA after flashing the carrier stuff, including that AT&T folder. It was driving me nuts. I'm on Firstnet and I got thinking that may be the issue, since it's got lots of quirks. I'm guessing the Firstnet SIM wasn't triggering whatever the firmware needed to see in order to install that AT&T version (even though it's basically AT&T although Firstnet has a separate network core from AT&T).

I tried popping in a Verizon SIM I had and that triggered the install of all the Vz crap and it all worked as expected. So knowing that the process worked but just wasn't working right with Firstnet, I ordered a couple AT&T sim cards. I reflashed and then inserted the AT&T sim and it triggered the carrier update and then successfully flashed the AT&T firmware. I was also stoked that it worked with an unprovisioned sim card, I was hoping that would work and I wouldn't have to sign up for service just to flash my phone.

After this I popped in my Firstnet sim and everything's been working perfectly. I'll also note that for those on Firstnet and are subscriber paid, you can login to the admin portal and manually update your device IMEI yourself. Even after I had my sim in my new phone it was still showing my old phone until I manually updated the IMEI in the portal. I'm guessing you're not going to get all the features without updating that.

So, after all that, on Firstnet, with AT&T firmware and my IMEI number updated, I'm getting all features working, VoLTE, Wifi Calling, etc. I'm super happy with it and also am seeing a large increase in speeds over running on the XAA firmware. I'm guessing on XAA I'm either not getting CA or Priority, or both. I'm seeing about triple the speed on the carrier firmware. YMMV since Firstnet is a unique beast but wanted to throw my experience out there in case it helps anyone else.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] ayeyotone30:
Need help

I’m a newbie I got SM-G988U how can I flash to unlock or to T-Mobile device has been unlocked thanks just not sure what firmware to download I have Odin installed
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
If you're a newbie, then you'll need to read and do research in order to teach yourself everything about Odin flashing. There are many other threads here on XDA that give basic step-by-step instructions
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] funziebear:
Advance messaging works on Google messages just install carrier services from play store and reset the app it'll show up after that
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] taranfx:
I've a Verizon locked Ultra. Can I flash U1 to unlock ? OR flash Tmobile firmware to work on Tmobile?
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
No.

No amount of firmware flashing will ever SIM unlock a device - it resides much deeper than that. I can provide a recommendation for a 3rd party professional service to do it, if you're interested
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] taranfx:
sure pm me
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] aroy97:
Verizon unlocks their devices automatically after 60 days of purchase, just wait until then and then flash U1
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
But I believe it either has to be 60 days of active usage, or it needs to be activated on a Verizon line first and then it doesn't matter if the 60 days are active or inactive. Due to the varying situations in which phones are obtained and purchased, those conditions might not necessarily be met
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] Commies:
If I'm a verizon Ultra, can I flash the unlocked one with no problems to gain access to things Verizon removed like the blockchain wallet?
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] Mike02z:
I got mine a week ago and I was able to flash U1 with no issue. My device has obviously not been on VZW for 60 days and its on the VZW payment agreement.

I know VZW is supposed to unlock the phone at 60 days but after 90 days my Note 10 was not unlocked. Spent an hour on the phone then I was told it would be unlocked by morning. Nope, still locked.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
In theory. But there's only one way to find out
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] Commies:
It worked with no problems. Appreciate you! I now have access to the blockchain wallet.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
Good to know :)
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] tudoz89:
Originally a T-Mobile s20 ultra and flashed to latest unlocked firmware ("camera fix" ATCH version) with no issues! Didn't want to wait on T-Mobile to release it two months later lol

Thank you OP!
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] jcrompton:
I should know the answer to this but I thought I would ask for recent experience -- If I flash U1 firmware to my ATT device will I be able to:

Save data

And still have carrier services with ATT like WiFi Calling , VoLTE, etc ??

Thanks
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] Scott:
Nope. Those features wont work. I searched for a solution but could not find one. Most solutions where to go back to AT&T stock ROM and that is exactly what I did. You can search for AT&T WiFI Calling with Unlocked device and see what I mean.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] jcrompton:
So I remember now. I had to go back and search my Note 10+ posts

I flashed U1 firmware but put in the U CSC (from ATT) and got all features on my unlocked Note 10+

So I bet if we flash U1 with U CSC on the ATT device it'll work. Just didn't want to wipe everything to find out but I guess I'll have to
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] grantl6:
Yes, I downloaded that one and loaded it in Odin, fails the check like the other one did. Made sure to check I had the right one this time
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] grantl6:
Gives the binary is invalid error
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
Redownloaded from my Samsung firmware source, verified md5 passed, and re-uploaded to AFH
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] grantl6:
Failed the check again :(. I downloaded it twice to make sure and the uploaded date says March 1st, extracted it with three different programs a few times as well.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
Then AFH is corrupting it.

Use this:

USERDATA_ATT_G988USQU2EULH_G988USQU2EULH_SCL23194942_VCL23195093_MCL23190220_SQB47534699_VQB47534700_MQB47534697_REV00_user_low_ship_MULTI_CERT.tar.zip

drive.google.com
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] Jetrel1:
Posting here as hopefully someone will know. I've posted before but never got anything conclusive.

I own a G988U1, purchased open box in Canada. Some features like caller ID and Samsung pay won't work. I'd like to get the W firmware installed.

Last week I tried, I flashed the W firmware with XAC csc. It seemed to work fine at first, but when I reinserted my SIM, it wouldn't recognize. It was as if the SIM slot was just missing, there wasn't even any errors about inserting my sim. I eventually flashed back to U1 and tried to look it up, but I keep getting conflicting answers.

Do I need to flash to the Telus version first (my carrier)?

Is it even possible? (one guy on my post said it was straight up impossible, which I doubt)
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] nocola:
Hello, I just got a SM-G988U (ATT) I want to change the firmware that is on the phone right now. I want to change it to the SM-G988U1 I did download the files that I found on here. When I am in the bootloader for the phone right before I flash it. The carrier listed on the loader screen is TMB. Does that matter?

When I use Odin v3.14.4 the flash fails. the 1st time it fails right after I hit start. I then I hit start again it still fails but does take time for it too. Am I using the correct version of Odin? Should I be using an older version other then a newer one.

Am I doing something wrong?
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] matti88:
You have to give more info than simply "it fails", in order to know if you're doing something wrong. We need to know:

- the exact version that's currently on the phone

- the exact version that you're trying to flash

- exactly what shows in Odin at the time of failure

- any error message that appears on the phone screen at the time of failure
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] nocola:
One UI: 5.1

Android Version: 13

Baseband: G988USQS6HWGC

The file that's from OP

<ID:0/010> Odin engine v(ID:3.1401)..

<ID:0/010> File analysis..

<ID:0/010> Total Binary size: 8727 M

<ID:0/010> SetupConnection..

<ID:0/010> Initialzation..

<ID:0/010> FAIL! SHA256 is invalid

<OSM> All threads completed. (succeed 0 / failed 1)

None

Want to change the firmware from SM-G988U to SM-G988U1 to remove bloat ware from ATT
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] matti88:
1. The file that's from OP is 4 years old. You can't flash that to a device that's running a very recent software version. You need to flash a much more recent version of the U1 firmware.

2. SHA256 error means that you're not using patched Odin
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] nocola:
Oh. So I need to find the new files. To convert the phone.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] matti88:
Yes and also patched Odin
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] nunyabiziz:
I flashed the U1 firmware on my S20u and VoLTE is working. There isn't an option for WiFi calling in the firmware so I can't test that. Wifi calling wasn't my concern as I have decent cell coverage at home.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] jcrompton:
Sorry it took me a little time to get backed up and ready to be able to flash. But as said , If you flash the latest U1 firmware (on your carrier device, in my case ATT) but instead of using the U1 CSC flash the U CSC then you will have ATT calling features (including VoLTE and WiFi Calling - just confirmed).

Need to use the patched Odin (I used patched Odin3 v3.13.1_3B_PatcheD version)

Worked like a charm just like on a Note 10+ device I had before
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
Some carriers have already released that patch - you could have just flashed over your previous version, if you wanted to stay on U firmware
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] jcrompton:
What's the best way to see if / when a carrier (like ATT) will release particular firmware? Is it announced somewhere?

Camera better in general on the updated U1 firmware but strangely I can't get the QR code scanner to work to activate Google Messages on the Web
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
You won't know ahead of time, until it's officially announced for release. Every carrier has websites for checking information about software updates for a particular device.

You could try flashing build TCH of U firmware, to see if that fixes your QR issue
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] jcrompton:
Thanks , but strangely it appears that the updated firmware messes up the ability for the camera to scan the QR code to use Google Messages on the web. It wont focus even after flashing the TCH U firmware
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
Ahhh, that sucks. Fix one bug, create a new one lol
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] jcrompton:
Yup
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] TonytotheB:
Forgive the question as I promise I have read everything. I am on TMobile in the US with an SM-G988U. The file on Frija for SM-G988U and TMB is the one from 18th Feb.

What can I flash which won't break my phone? Can I download the U1/XAA and flash this and still get 5G / wificalling etc?

Thanks in advance
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] duckfart:
I am not seeing this issue.

On U1 with ATT.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] jcrompton:
I'm not sure at this point what had caused the issue for me but after complete full flash of the latest U firmware AND the ATT userdata file .... Then the problem was fixed
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
You never flash anything that will break your phone. But I have no idea if carrier features like wifi calling will work on U1 firmware - you'll just have to try it and see
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] jcrompton:
BTW -- did you flash the U CSC when you switched to U1 ? Are you just living without WiFi Calling or do you have it?

With a prior phone I flashed the U CSC with the U1 firmware and was able to keep ATT WiFi Calling on U1 system, but I'm not sure if that's what broke my Messages app QR code reading(ability)??