yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] mariuszsnit:
I am trying to switch from U1 to U VZW brand. I get this error

<OSM> Enter CS for MD5..

<OSM> Check MD5.. Do not unplug the cable..

<OSM> Please wait..

<OSM> Checking MD5 finished Sucessfully..

<OSM> Leave CS..

<OSM> Enter CS for MD5..

<OSM> Check MD5.. Do not unplug the cable..

<OSM> Please wait..

<OSM> Checking MD5 finished Sucessfully..

<OSM> Leave CS..

<ID:0/007> Added!!

<OSM> Enter CS for MD5..

<OSM> Check MD5.. Do not unplug the cable..

<OSM> Please wait..

<OSM> Checking MD5 finished Sucessfully..

<OSM> Leave CS..

<OSM> Enter CS for MD5..

<OSM> Check MD5.. Do not unplug the cable..

<OSM> Please wait..

<OSM> Checking MD5 finished Sucessfully..

<OSM> Leave CS..

<ID:0/007> Odin engine v(ID:3.1401)..

<ID:0/007> File analysis..

<ID:0/007> Total Binary size: 9881 M

<ID:0/007> SetupConnection..

<ID:0/007> Initialzation..

<ID:0/007> Set PIT file..

<ID:0/007> DO NOT TURN OFF TARGET!!

<ID:0/007> Get PIT for mapping..

<ID:0/007> Firmware update start..

<ID:0/007> NAND Write Start!!

<ID:0/007> SingleDownload.

<ID:0/007> abl.elf

<ID:0/007> xbl.elf

<ID:0/007> FAIL! (Auth)

<ID:0/007>

<ID:0/007> Complete(Write) operation failed.

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

<ID:0/007> Removed!!
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] znel52:
Are you trying to go from the unlocked 3.1 DUC1 build to VZW firmware? They updated the bootloader from BL1 to BL2 on DUC1 so we are not able to roll back to anything older. The VZW firmware is still on BL1.

If that is the case will have to wait for VZW to release new firmware with BL2 before you can switch. My guess would be it will be included in next months security patch update.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] dj24:
Great guide to people like me that are thinking about dipping their toes in for the first time when it comes to flashing. I do have a question or two though:

What are the advantages of flashing from a U device to the unlocked U1 version? For instance I have the T-mobile U version and I have for the most part uninstalled all the carrier bloatware that came with it and put the ones that I couldn't into deep sleep so my battery life for the most part is unaffected. I also got it unlocked when I first got it since I paid outright for it. I notice most people also like getting updates faster and flashing enables them to do so but I honestly don't mind waiting for the slower OTA ones.

I guess I'm looking for a reason to do this (bored too) and use it as a learning process as well to gain the experience since I've never flashed before. Are there any settings or features in the U1 devices that I can't get from the play store that I can get by flashing? The only feature I truly miss is call recording but I don't think anyone has been able to figure that out yet..
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] znel52:
It mostly comes down to bloat and unlocked devices being eligible for beta programs. They used to do beta programs for some carriers but it seems to be happening less.

For the most part there isn't much difference. I've been toying with the idea of switching my unlocked to Verizon firmware to get RCS which Verizon recently activated for several Samsung devices. Was hoping it would come for the unlocked phones but doesn't look like it will. Haven't heard anything about the google/samsung RCS partnership in months.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] rjohnstone:
Another reason to switch to U1 firmware is the ability to get access to features that are disabled on carrier versions.

I went to U1 firmware so I could enable "Call and text on other devices" and get rid off the carrier bloat.

This is disabled on AT&T and Verizon versions... not sure about T-Mobile/Sprint devices.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] rskyline:
I've been using the u1 version on my u from att after like a month and it's been working great. I also got the april security patch on the 1st so it's definitely being great.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Shaun9575:
Hello everyone, I'm too new for these thing and I'm confused to be honest. I have Note 20 Ultra, just unlocked it, but every time i turn on the phone still shows T-mobile logo then turns on. I have N986U. Which software I need to download to get rid of T-mobile logo.

Thank you
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] rskyline:
You have to follow the instructions in OT, first check which bootloader your phone has, second download the U version according to the bootloader you have and flash it through odin.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Shaun9575:
My phone was locked to t-mobile, I already unlocked it, but when I turn the phone on still shows t-mobile logo on the screen, I want to get rid of that. Someone told me I have to flash the phone from U to U1, this is why I'm here.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] rskyline:
And that's what I explained to you. You have to flash u1 and how to do it is on the OP(Opening Post). Just read carefully and read the other threads linked there too.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] sammyfanmh:
Very useful information folks!! Thanks a ton.

Dumb question (I am new to flashing). I have a verizon issued note 20 ultra (U version) which I jsut got unlocked today . I am able to install a tmobile SIM and it works fine. However, I have come to know that the latest tmobile update (for tmobile issued phones) added esim capability. Can I directly flash tmobile version available at the OTA link ? or do I have to go from verizon (U) to U1 to Tmobile (U) ? Any help is greatly appreciated.

[Update]

I flashed the TMB U firmware and voila it worked!! On a call with Tmobile to get the esim activated. Will let u folks know how it goes.

[Update-2]

T-Mobile was more than happy to activate the esim. Mission accomplished :)
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] dadmi:
Did you lose your data when flashing TMB U firmware? I have a U1 and would like to switch to TMB U firmware for eSim but don't want to lose data.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] sammyfanmh:
yes, I did it on purpose to have a clean install and took a backup before flashing.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] lentm:
I just tried flashing TMB U firmware on U1 for eSim.

I used HOME_CSC from TMB firmware to not lose the data, flashed successfully, but failed to boot.

So, I flashed U1 firmware again with HOME_CSC from XAA, I was able to boot again then.

Edit: Just realized that it now says TMB/TMB/XAA on software info after reflashing U1 firmware. :\
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] warriorvibhu:
If you use home_csc file you will not lose data.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] bhavit13:
I am stuck on File Analysis - can anyone provide any guidance?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] rskyline:
Can you share a screenshot?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Bhavit:
Here it is. Just stuck there
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] rskyline:
I would download the firmwares again.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] guptosan:
I am also trying to do exactly as you did. Quick question: are both your sim cards (physical and esim) from T-mobile? I would like to use esim with T-mobile and physical sim from Verizon. Do you know if that will work with the TMB U firmware?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] sammyfanmh:
I do not have Verizon sim anymore. But my physical sim card is on AT&T (e-sim on Tmobile). So, yes I think it will with Verizon as well since the network unlocked phone is compatible with all US carriers.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] mindseye0803:
Are you getting all features ( WIFI Calling, VOLTE etc) for your ATT physical sim?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] sammyfanmh:
Volte works. Wi-Fi calling is not working (works for the e-sim on T-Mobile)
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] o601:
I have a T-mobile N986U , I was flash to unlocked(U1) for UI3 beta and keep OTA update, now when I use Odin to flash back to T-mobile (U) it success and reboot automatic but it reboot 2 to 3 time then my phone boot to recovery mode but only had 3 option reboot, factory reset and recovery log. Phone work when I flash back U1 without data lost.

N986U1UES2DUC8 > Good

N986U1UES2DUD5 > Good

N986USQU2DUC8 > Can't boot

Anyone can help how to flash back to t-mobile with e-sim support?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] warriorvibhu:
It seems due to bootloader upgrade to bootloader 2, when it comes to flashing U1 to U or U to U1 there is a problem with booting devices. 2DUD5 and 2DUC8 means you are on bootloader 2. So when you were on Bootloader 1 after that whatever you flashed U or U1 that was bootloader version 2, your device got locked to that. It seems you flashed U1 ROM with Bootloader 2. You will have to be on U1 until a solution is found.

Others feel free to correct me or update my info.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] rjohnstone:
You have to factory reset when you switch from a U image to U1 and same when going from U1 to U.

Once you reset your phone, it will boot normally.

You'll lose all your data and settings. No way to avoid that.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] o601:
If I run full backup via smart switch, can I restore back when I switch between U and U1?

Thanks
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] rjohnstone:
You can, but you needed to do that before you flashed the new image. Right now you are stuck in a loop.

You can try and flash back to a U1 image and see if it will boot, but I suspect you will still have to reset.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] o601:
I flash back to U1 firmware without losing anything, I will try backup and flash to T-Mobile U firmware again .

Thanks
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] warriorvibhu:
This must have worked but you would have lost data and restored from Backup
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] 3GJockey:
Well, as a guy with a SM-986U1, I can tell you that you'll LOSE eSIM / dual SIM functionality.

That's the reason I bought this phone (Amazon) instead of the S21. I read that it was eSIM enabled on T-Mo. But not mine.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] 3GJockey:
The confusion here is, i think, because Shaun is not aware that he's using imprecise language. I sympathize, since I barely (or don't) know what I'm talking about here.

Shaun has SIM unlocked his U phone from Tmo, but has not flashed to an "unlocked" U1 firmware.

Rskyline thought Shaun meant he had already flashed U1 firmware. So there's confusion around the term "unlocked".

Now, for my opinion: Shaun, I have a U1 USA firmware phone I bought "unlocked" from Amazon. It's also SIM unlocked, but running a T-Mobile SIM card. And I STILL have the Tmo logo at login, because I'm running a Tmo "Service Provider Software Version" i.e. TMB/TMB/XAA. This package was installed after I inserted the SIM card the 1st time.

While I don't understand why you'd care about a logo that pops up for a second once a week or so, that's your choice. I'd bet there are hacks to remove that, but this thread is about flashing different firmware, and so your question is probably not relevant here.

Good luck.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] 3GJockey:
Just FYI, I bought mine unlocked U1 from Amazon, have not successfully flashed it at all, AND it has the TMB/TMB/XAA. I accepted software from Tmo from a prompt when I put the SIM card in the 1st time. But I like most of the Tmo "bloat".

So the TMB/XAA you're seeing on your phone was probably there before all your flashing.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] dj24:
You're right. Flashing back to UI is not an option for me anymore since I'm now utilizing the dual sim feature in a different country. What's really surprising is how slow t-mobile has become since the sprint merger in pushing out updates. They've literally fallen asleep and we're still stuck on the March 1 Security update. I'm giving them the benefit of the doubt for now since they did activate the dual sim feature for us last time around and am hoping for more goodies like dual recording feature for the next one. Hopefully it'll be sometime in 2021 :)
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Limeybastard:
That's interesting Shaun, if memory serves me correctly back in the days the sim unlocked Samsung devices would brand switch only when changing SIM cards. The unlocked by Samsung U1 ones didn't.

Edit. Memory obviously doesn't serve me correctly. 🤣
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] 3GJockey:
Well, I also have memory lapses, and it's been a couple of months, but I think in this case I was ASKED if I wanted some T-mo bloat, and I chose yes because I like a few of their features (and mistakenly thought it would give me eSIM.)
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] DmitriiJW:
just me or everyone is missing the software update menu item?

flashed from u AT&T to u1
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] thegreatway:
Hi I have a note 20 Ultra from Xfinity. I paid it off, and got it unlocked. I would like to get rid of the bloatware also change apn settings. I have the N986USQSDUE2 and the latest july patch update from samsung. Can I switch to U1 factory unlocked? since it looks like booatloader 2? what version of U1 do i need?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Limeybastard:
If you're on bootloader 2 then you'll need bootloader 2 U1.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] dawinner:
Hey Everyone,

I have Unlocked Note 20 Ultra 5G (SM-986U1). I want to flash T-Mobile CSC to enable ESim. Is that possible? Can I just flash CSC and get Esim or do I need to flash the complete T-Mobile ROM?

Also, for ESim, do I need to flash the locked version or unlocked version of TMB will work? (I mean is it mandatory to flash U version to enable Esim or can I just flash U1 version of TMB?)

I used FRIJA to download the firmware version: G986U1UES2DUE2/G986U1OYZ2DUE2/G986U1UES2DUE2

(I typed TMB in the CSC section of frija)

Can someone guide me?

Thanks.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] bigTINY779:
gotta be full U version bud. and gotta be a clean wipe install. been rockin the esim in my U1 on Mint Mobile for about 3 days now. works great
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] dawinner:
Thanks Bud. I did a complete wipe and installed U version of TMB. My About phone shows the ESim IMEI (It is greyed out). But there is no SIM card manager

I have no Idea what to do next. Also, I didnt write the User Data file. Should I have done that?

Also, I aint entering T-Mobile Sim. Is that something whats causing this.

Any idea what can I do to get the SIM Card manager menu?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] bigTINY779:
yes FULL firmware... including userdata
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] dawinner:
Just flashed with USERDATA, it still doesnt change Hahah. I think there is something stopping my phone to change its CSC
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] bigTINY779:
wow thats wierd. worked first try for me. try doing another factory reset after flash and first boot. i kinda think i might have done that
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] dawinner:
Did everything...couldn't change...I give up. Will try after some time...Have came back to U1 XAA firmware.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] radici:
Mine didn’t work either, I flashed from XAA/ATT U1 after factory reset and removing sim to XAA U1 again, then rebooted to download mode and flashed the full TMobile U version (with CSC not home CSC …even flashed userdata). Skipped through all I could in setup, didn’t connect to wifi, put back in my international sim. Still XAA, no tmb, esim was now present but grayed out and my model number was now U/DS. Problem is… then I could no longer see a data icon and had no connectivity. Rebooted… still the same. Had to flash back XAA U1.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] rjohnstone:
You will not see TMB if you re not using a TMB SIM.

XAA devices will show XAA/XAA/<carrier code from SIM>

If you want to change to TMB, you'll need a TMB SIM. The firmware package you flash is irrelevant.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] tommytep:
mine as well. keep flashing back and forth U1 and U dozen times with hints from any method that works but no luck. it seems that the lastest firmware (June update - which my phone has before flashing) has block esim permanently and no way to alter that.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] tommytep:
yp, same here. on TMB it has IED greyed out, sim manager missing and cannot connect to mobile data. Have to stop trying now after dozen of flash and wait for new workaround to be discovered.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] dadmi:
Was able convert U1 to TMob version yesterday and activated Tmobile esim with no issues. Firmware used was the one linked in the first post.

N986USQS2DUE4.zip | by kangi26 for Galaxy Note 20 Ultra

Download GApps, Roms, Kernels, Themes, Firmware, and more. Free file hosting for all Android developers.

www.androidfilehost.com
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] radici:
What method did you use? Factory reset with sim out then flash to U1 first then flash to U, run through setup and then install sim?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] radici:
I'm guessing it needs to be an active TMB sim... I tried it with an inactive one I have.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] dadmi:
Factory reset with active tmobile sim, then flash tmobile firmware. Flashed all files including home csc and userdata
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] warriorvibhu:
Interesting to see you flashed Home Csc instead of regular csc. Ideally you should not lose data when flashing home csc but user data flash must have caused you to lose your data and start fresh.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] dadmi:
I took a backup and factory restored phone before doing these steps. This was with my cousin's phone and we wanted to keep the process simple while working on the phone remotely. When I did the same steps when tmobile released eSim with my phone, I had issues with keeping my data and had to flash home csc or user data (don't know which one) to make the phone boot up successfully.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] jrapps:
Hi. I just got a brand new Galaxy Note20 5G SM-N981U1 that I want to flash with T-Mobile SW to get e-sim/dual sim capabilities. Since it is a brand new unlocked U1 out of the box, I have no data on the phone I need to worry about preserving. I also have a physical T-Mobile SIM (which will eventually convert to e-sim) and then a Verizon sim for the 2nd sim.

How do I tell if my phone is Bootloader 1 or 2, or does it not really matter? Here is the SW already loaded on the phone:

Build # 11/RP1A.200720.012.N981U1UEU2DUF2

CSC SAOMC_SM-981U1_OYM_XAA_RR_0016

XAA/XAA/XAA

Security Patch July 1, 2021

My plan was to put in the T-Mobile SIM, install ODIN on my PC, the download and install the latest SW from Frija for SM-N981U CSC TMB:

N981USQU2DUH2/N981UOYN2DUH2/N981USQU2DUH2

I assume I don't need to worry about selecting home_CSC or userdata since it is a brand new phone.

Am I missing anything?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] warriorvibhu:
You are not missing anything. N981USQU2DUH2, The highlighted number is what shows the bootloader number so check for software version on yours in the settings. You dont have to use home_csc, use regular csc. i suggest flashing even before you insert t mobile sim - Just flash the T-Mob firmware and then insert the sim after the flash.

In case the flashing/ conversion is not successful, flash with userdata of t-mob firmware.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] jrapps:
So it worked and the phone appears to be working great, however I noticed that my service provider info is now listed as

TMB/TMB,TMB/XAA

Is that normal or OK?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] warriorvibhu:
Yes it's normal. Good to know the phone is working great. Hope that includes esim too.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] nds4me:
Hi.

I got a new Galaxy unlocked Note20 5G SM-N981U1, I inserted my Tmobile sim and it is working fine, but I really want T-Mobile SW, can I just use Odin to flush the firmware for TMB , i found the following on sammobile.com

PDA:N986U1UES2DUH3

CSC:N986U1OYM2DUH3

My phone software now is :

One UI V.3.1

Baseband:N986U1UES2DUH3

Build: RP1A.200720.012.N986U1UES2DUH3

CSC: SAOMC_SM-986U1_OYM_TMB_RR_0012

TMB/TMB/XAA

Security Patch September 1, 2021
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] warriorvibhu:
You should be fine. Just follow the instructions from post 1. You may lose data so be mentally prepared for your device to factory reset other than that your Knox and all would be fine, I saw your question on other thread. You can also use the firmware from the other thread where you posted the question instead of using Sam mobile.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] nds4me:
Thank you.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] LukasVN:
I have used Odin to flash to N986USQU1CTL2 from kenji's post but failed. I want to upgrade my phone to Android 11 and my device info here. Please help.

Solved! I tried Odin 3.14.4 and succeeded.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] JeffATL:
Can you post your exact steps, with sim removal and specific roms?

I am stuck. I tried flashing a bunch of times yesterday on a new N20Ultra Unlocked but I cant get away from XAA/XAA/XAA/XAA. I tried with Userdata, without . I have T-Mobile Sim On Connect plan.

LTE not currently working

Also is your Note new? I am wondering if they change anything

I must have flashed 20 times without success. Once you enter intitial setup if T& C is with Samsung instead of T-Mobile does that indicate failure?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] warriorvibhu:
Did you follow everything correctly ? Did you use the patched Odin provided here in the first post ? from what i have seen it is pretty easy and seamless unless you are doing something wrong. May be your are flashing wrong ROM. Can you hare details, what ROM version you downloaded and what Odin you used.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] JeffATL:
Thanks. I was using modded Odin. I tried both 1.3 and 1.4 I ended up getting it to work finally. This was my procedure and the only procedure that worked for me :

https://xdaforums.com/t/note-20-ultra-esim-update-is-here-t-mobile-usa.4261933/post-85688337
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] warriorvibhu:
Surprising, well i am glad you got it working but there is too much going on there. I have gone from U to U1 back and forth without any hassle not sure whats going on there. I usually flash without the sim inserted.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] JeffATL:
Have you been doing this with the latest DUH4 rom? Also, is it possible that they changed something in phones that were purchased more recently? There are several threads concerning the same topic and there are a few others also posting being stuck on XAA.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] warriorvibhu:
Hmm I have done it on DUH3 on U1 to Latest Tmob U and back. Only change I know is the bootloader version change. May be there is something, haven't had a chance to investigate.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] muzhik:
flashed tmob DUH4 yesterday from U1 (DUH3), no issues.. see my post