yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] kangi26:
Got the VZW A12 uploaded, link in Post 2
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] biged1218:
Must be flashed with Odin or can side load? I'm on beta 3.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] kangi26:
I think you can sideloaded with ADB, but I'm not familiar with it
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] waichai:
Last night, I odin from N986U1UES2DUK2 to N986USQS2EULF ANDROID 12 ATT/CCT/CHA, and I didn't use USERDATA. What exactly USERDATA does? when we need or don't need to use USERDATA? Can you educate me on this one?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] MrRubik20:
Anyone experiencing any bugs with SM-N986USQS2EULF on ATT? It seems kind of laggy to me and is starting to make me think this won't be ATT's official build. But then again, who knows. The chat with the tech was a long shot but I figured I'd try. I did a fresh clean flash. I always clean flash and set back up.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Venom0642:
Nope no lag at all running perfectly even battery life still excellent
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] dumblazyman:
Hi,

I have a question. I have SM-N986U from ATT and unlocked by ATT. I want to flash N986U1 on SM-N986U. WIll this work or will that brick my phone? And also does anyone have links to download latest N986U1 A12 version. None of the links given for the N986U1 is working. Appreciate the great work you guys are doing. Thanks in advance.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] MrRubik20:
Adnroid 12 stable has not yet been released for the N986U1 firmware. We are all just waiting.

EDIT = However, using the patched Odin and the instructions in post 1, you will not brick your phone AS LONG AS YOU ARE ON THE SAME BOOTLOADER.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] kangi26:
It will work, you almost can't brick anymore (Short of maybe unplugging your USB when flashing a firmware?)

The only links for U1 Android 12 are Beta, they are in post 3 and are working fine for me
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] MrRubik20:
I think it was the initial setup making it laggy. Seems to be fine now. I love the diagnostic feature under device care tho. That is an awesome touch.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] DevVorteX:
It's nice they threw that in there, but it's always been part of the Samsung members app anyway. They just added a shortcut to it in service care now.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] MrRubik20:
N986USQS2EULF ANDROID 12 ATT/CCT/CHA Thanks @Venom0642

Why is ATT listed if we aren't sure this is the official AT&T software? It's been a few years since I've been in the flashing firmware game. Since I had my Xiaomi Mi Mix 2. So I'm just wondering as I don't know. Also, Do you think if I flash this firmware it will put me on the ATT OTA firmware upgrade list?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] kangi26:
I listed it by accident, it's removed now
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] MrRubik20:
I wish AT&T would hurry up. I flashed DUJ7 just to see if it would give me the next OTA update and it did. This should put me back on track for ATT's Android 12 update right? That way when they release it, I can update, and then boot to recovery to wipe data/factory reset, and set up fresh.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] dumblazyman:
Hi I am flashing my N986U to the latest firmware in this post but it was struck with super.img for last 1 hour. Please advise what should I do. By mistake I used Thunderbolt USB on Windows. May I use Volume Down Key + Power key for more than 7 seconds to cancel (restart phone). Will this brick phone. Thanks in advance.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] MrRubik20:
I would recommend doing a clean flash using BL, AP, CP, and CSC (NOT HOME CSC). Then I would recommend booting into recovery menu and doing a full wipe of data. Then everything should work fine. I flash this way every time and it works.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] kangi26:
It looks like you're not using the right Odin. Make sure you use the one posted here
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] dumblazyman:
Hi,

I am getting "An error has occurred while updating the device software" when I cancelled the download mode and I am trying to use SmartSwitch recovery option. Is this best option to recover from software failure error. Can someone please give me the steps for software recovery. What is the latest version of ODIN to flash this N986U A12 versions? Thanks
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] DevVorteX:
Grab Odin3_v3.13.3b linked in the 2nd post of this thread. You need the "patched" version there for it to work.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] kangi26:
You're spot on. As soon as the ATT Android 12 drops, you'll be getting it. Please let us know when it does drop and what the build is
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] dumblazyman:
Thanks, it worked
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] sean8102:
Glad to see news of carrier builds of the final Android 12 update showing up. Looking forward to one last reset when the final build for U1 comes out.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] rskyline:
Oh so does the EULF build is not AT&Ts official android 12? If I flashed that one I'll be out the coming otas?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] kangi26:
We dont know what ATT's build will be yet, so I cant say if you'll be able to get OTA or not
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] rskyline:
We will see. I thought that was official since it has even the AT&T boot logo. I might be able to dirty flash the official at&t when it comes out!
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] kangi26:
You will get the ATT logo if you're on ATT. The network of the installed SIM card will dictate what features and carrier branding you'll see when you're flashing the firmware.

And absolutely, you could dirty flash
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] rskyline:
Is that different for U1? Since I got exactly same behavior as this one is an ATT build, maybe because is a U rom. I'm just trying to understand lol sorry for all the questions.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] kangi26:
Yes the U1 firmware will do the same.

ALL of the firmware linked here can be flashed on any N986U or N986U1 regardless of the carrier. When the firmware is being flashed it "checks" the network that it's talking to (Based on the active SIM) and will install the features/tagging/bloat associated with that carries specs
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] DevVorteX:
U1 firmware is a bit different as you won't get the carrier bloat nor the startup splash screen.

But any of the carrier firmware works like this. You can flash t-mobile, verizon, or whatever firmware on any other carrier device and the SIM card will determine the extras to install (like the bloat and splash screen).
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] rskyline:
That makes sense. That's why the EULF build not necessarily it's an ATT build. But since is an U build it will act like an ATT on my phone because of the sim card. Thanks all for the explanation.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Venom0642:
Basically it's all universal firmware that works on any Samsung build of the phone you have.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] borijess:
ATT stock firmware coming in. Not sure what it is yet.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] borijess:
Looks like Android 12!
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] rskyline:
You might be able to capture the update, @kangi26 @Venom0642
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] kangi26:
Are you on U or U1?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Venom0642:
Don't need to Been on it from last week Android 12 , That's the AT&T Update Firmware N986USQS2EULF that's rolling out now live.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] kangi26:
Good to kno

Good to know, thanks!

Updated post #2
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] borijess:
Android 12 stock ATT
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] kangi26:
Outstanding, thanks
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] biged1218:
Still no unlocked?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] borijess:
U
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] warriorvibhu:
So guys i am in a soup here.. I installed a theme using Hex Installer and then the phone went into a bootloop. it wont switch on.

I know factory reset is not an option for me at all due to sensitive nature of authenticator apps installed on my phone. And being on Beta doesnt give me luxury to odin with Home_csc.

Now I can just hope that Android 12 is released for U1 asap so i can flash with homecsc.

ohh yes tried so many things at this point including safe mode and all and phone wouldnt boot into safe mode either

Any Magical suggestions would be more than welcome.

Thanks guys.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] kangi26:
Can you do a dirty flash? Oh crap, I just read you're on Beta

As a side note would it help to do a backup of your Authenticator app info?(If it's MS Authenticator)
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] DevVorteX:
You can odin to the eulf firmware with home_csc to avoid the wipe. I went straight from beta 3 to eulf with no wipe.

What auth apps do you use? I switched to bit locker for all my 2 factor authentication. Then where I can't use it (govt work) I backup the setup code so I can set it back up without a hassle.

I haven't used hex forever, but is there anyway to trigger something in recovery to not load it? Maybe boot into safe mode?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] warriorvibhu:
microsoft and google are fine the Duo that i use for work is challenging.

Tried recovery options like wipe cache .. repair apps .. and safe mode also wont boot.

Also after continuously bootlooping Samsung gave me option to erase app data but that would be almost as good as factory reset.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] bigkpwns:
Can confirm that going from U1 beta 3 to U ATT EULF via Odin works just fine. No wipe needed by utilizing the home_csc. Just performed this operation myself and am having no issues so far!
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Venom0642:
Weird i don't have your issue, sorry to hear that your in a bootloop, I'm on AT&T Note20 Ultra 5G 512GB Snapdragon and been on the firmware N986USQS2EULF since last week and been on Hex and no issues here no bootloop for me . As you can see in the photos here.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] V0latyle:
The only issue I see with those photos is I have no idea who that is!
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] kangi26:
I KNOW, he posts and as soon as I see these damn screen shots all of his text just seems to disappear. :love:
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] MrRubik20:
I was on a fresh flash of EULF and my Google Play System Security Patch was stuck on September? Downgrading now and then going to try to reflash OTA. Didn't know what else to do. My wife has the exact same phone and hers was showing November. That's a big difference. Any ideas?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] warriorvibhu:
From unlocked to ATT why would I do that I don't even use ATT and I don't want to go to U firmware. Thanks for the suggestion though. Many thanks. Will wait for unlocked firmware to be out.

But still one question did you go from unlocked firmware U1 to U without a wipe.

@kangi26 or @Venom0642 can you advise if that is possible to flash U from unlocked Beta firmware coz at the end of the day it's all same firmware and carrier services are provisioned based on Sim.

All I want to confirm is if it's possible to go between beta to ATT U firmware without wipe.. Then may be when U1 android 12 is released I will flash that using home_csc
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] warriorvibhu:
Lucky you.. The theme I was trying out when this happened was ios blur by Raphael. This may be hardware failure too. One never knows. I will wait to Odin to stable Android 12 for U1 and then see.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] DevVorteX:
I know you're not asking me specifically, but that's literally what I did. I was on U1 pre-beta, then sideloaded the betas, and just last week, went from beta 3 to the ATT EULF via odin with no wipe. Everything has been fine.

I know ATT just officially dropped EULF, but technically the firmware I installed wasn't ATT branded, since they all just kind of work based on your carrier. So it's more correct to say that I went from beta 3 to the EULF firmware, my sim card just happens to be ATT.

Hope this helps. I was just thinking that a firmware flash will fix your hex issue, then when U1 firmware drops, you can move to that via odin, that's what I'm planning to do (minus the hex issue since I don't use it)
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] warriorvibhu:
I did ask you specifically and mentioned kangj and venom to seek additional help. This has been very helpful to know buddy. I will get to it right away and let you know the results.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] DevVorteX:
Good luck, I hope it gets you back up and running. Hopefully U1 official will be out soon enough. At least before I'm so tempted to get the S22 ultra that I trade in my Note for it :).
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] kangi26:
Good luck man, sorry that's happened. I hope it works out ok!
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] warriorvibhu:
Sometimes i feel you guys here who are friends here on Forum and have not met in Real life care about me more than the people i know in real life :) :D
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] kangi26:
IMO, it's a simple formula (Maybe?) Give a sh*t about people regardless if you're standing in front of them or have a screen and keyboard between you

If that's the case, maybe it's time to get a new circle of friends? :eek: :D
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] warriorvibhu:
Its hard when you are old .. Lol .. Was breeze when i was 20 :) Anyhow just finished unzipping the EULF firmware. Flash time fingers crossed hope whatever **** Hex did is over written via Odin flash.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] kangi26:
I prefer to use the term "Older" :ROFLMAO:
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] warriorvibhu:
Quick Update: that didnt work, phone is still in bootloop. Seems factory reset would be the option now.

Also since i had my esim, the moment flashing was over the phone restarted and I was greeted with Tmobile splash screen.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] DevVorteX:
The t-mobile splash screen is normal, so that's good.

That sucks about hex bootlooping. If you can't find any way to avoid the reset, at least try to make sure you get a more robust backup plan in place for the future.

Took me 3-4 unexpected factory resets before I got my process together. Currently even with the security apps I need for work, I can get my phone back up to 100% in about an hour if it resets.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Venom0642:
He should be able to uninstall it with adb command.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] warriorvibhu:
You mean uninstall Hex, i didnt try that, now i have already done a factory reset.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] DevVorteX:
Oh no, I had done a quick search earlier and didn't see a mention of that working. The best I found was a post on reddit saying they recommend to have a good backup is using hex on one ui 4 due to a bootloop bug. I figured if that was the best recommendation, then adb uninstall probably wouldn't help.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] keredini:
Dirty flashed from U1 rom DUK3 to EULF with no issues so far. Looking forward to the U1 rom release so I can switch back once it's available. Surely it can't be too far behind the carrier versions ....
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Jobudden:
Hopefully.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] kangi26:
I hope you were able to get things figured out
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] kangi26:
Just a little heads up to everyone. When Android 12 drops for U1, I'll be removing the Beta stuff since we wont need it any longer. I try to keep things a little clean and tidy 😁
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] sr.bond:
Official android 12 firmware is up on frija for the SM-N986U1 XAA variant along with VZW and CHA csc variants
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Venom0642:
Link U1 SM-N986U1UES2EULI Android 12 https://androidfilehost.com/?fid=17825722713688266239
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] biged1218:
Thank you! Would you happen to have the over the air?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] warriorvibhu:
Yes in the end factory reset from recovery had to be done. But now I have a phone that is converted from unlocks to U variant as I had tried flashing EULF. Anyhow better start away from hex tool they explicitly fix the Bootloop. They had warning in their telegram page abs or was pinned, they removed that and it was foolish of me to to not wait and think that its fixed use it. I was able to get most things back done I did lose.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] warriorvibhu:
Literally 12 hours after converting the device from U to U1.. FML... Lol
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] JIML410:
Received Android 12 this morning on AT&T U1
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] warriorvibhu:
@DevVorteX Can you confirm when you flash from U to U1, If data stays intact.. my work IT security will kill me if I ask them to reprovision authenticator to me again after today. Lol
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] dj24:
Curious to know which backup method you use to get you to 100% in one hour..
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] DevVorteX:
Just flashed via odin this morning with home_csc and no reset occurred, all my data is intact.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] DevVorteX:
I keep all my 2-factor auth codes in my bitwarden account. Bitwarden is the only app thus far that I've found will accurately and reliably back up my auth codes.

Then the other auth app I use is RSA Token, which after it's setup, just requires a URL to be imported, and I've saved that url to import so that I don't have to re-request it, I just find it and copy/paste it and I'm ready.

I used google to auto-backup my apps, but if I'm worried about something I'm about to try, I do a smartswitch backup to my SD card. That tends to get all my apps re-installed, my text messages recovered, and my wifi/bluetooth mostly back.

Usually after a reset, I let the normal google process do it's thing, then I restore my smartswitch (if I have it). Then after logging into bitwarden and setting up my RSA Token, I'm pretty much good to go. The worst part of the whole thing is usually samsung pay and getting my galaxy watch 4s (I have 2 of them due to dumb luck) set up.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] kangi26:
Annnnd I was right.....

There WERE 2 flashes in my future :ROFLMAO:
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Venom0642:
AT&T Note10 Plus is also rolling live OTA Android 12
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] RigobertoDC:
Hi, I'm from Mexico and I have a used Note 20 Ultra, I bought it two months ago, but I can't get OTA updates. It is the SM-N986U model with CSC = CHA Spectrum Company, the Firmware installed is the N986USQU2DUC8 dated March 2021.

Is there a way to retrieve OTA Updates?

If I install the Android 12 update through ODIN, but with the CSC Home would I have any problems?

What would be the best option to update my device?

Thank you in advance for your help.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] sean8102:
Thank you! Glad to be flashing/wiping for the last time lol. SmartSwitch and Microsoft Authenticator having cloud backup don't make it too bad. Still looking forward to going back to just getting updates OTA.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] keredini:
Same here, went from U (EULF) to U1 (EULI) with no issues this morning using home_csc. Two flashes in 24 hours!
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] warriorvibhu:
Yes True but Google authenticator man I lost my accounts on there may be i missed doing something. I will check if it has backup.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] rskyline:
Woah now the dilemma rises up, stay on U or go to stable U1 xD
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] ptko15:
Just now downloading the update ota. Hopefully most bugs are figured out.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] warriorvibhu:
For my part since I use tmobile i am liking staying on U firmware as most carrier features work seamlessly and I don't need to use Alliance Shield X for RCS or carrier Video calling. Only thing I don't like is Tmobile splash screen and that jingle sound when starting the phone.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Jobudden:
Being on Verizon I hate not having samsung cloud lol
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] androidloveRs3104:
download link not working. can anybody please upload the file
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] PapaDocta:
New Verizon update... January patch
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] kangi26:
Well that was fast
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] kangi26:
Which link are you referring to?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] keredini:
I'm not sure which link they were referring to, but Android File Host was terribly slow for me yesterday when I pulled down the U1 rom, slower than usual.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] androidloveRs3104:
for sm986u1 android 12 latest firmware this showing to me that access blocked.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] Aloupha:
I can flash the Android 12 version ( N986U1UES2EULI ) if I have the US unlocked model?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] kangi26:
You sure can
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] rskyline:
What build are you testing right now? My GF just received the OTA from ATT officially.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] kangi26:
I flashed the ATT U1
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] borijess:
Why is the font so small on Android 12? Android 11 was slightly larger. I tried to go to settings and move it up one but it makes it too large. Anyway to find an in-between?
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] bigron77:
Try changing the screen resolution to WQHD+. You can go back to FHD+ after it resets.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] warriorvibhu:
You can do a few things

Using FHD from display settings will make the fonts slightly bigger.

You can also go to developer options and play with "Minimum Width" in drawing section default is 461 try 441 or 451 and see if it matches to your liking see attached screenshot. Don't use my settings I like small fonts.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] rskyline:
Any noticeable changes from Beta 3? I'm giving a shot to ATTs at the moment.
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] JeffATL:
Has anyone dirty flashed N986U1UES2EULI over TMB? Using TMB on original unlocked version to get dual sim, now that Android 12 is out want to go back but dont want to lose dataaaa
[Samsung Galaxy Note 20 Ultra Guides, News, & Discu] rskyline:
There's always a risk to lose data. I would suggest doing cloud backup. I don't remember the last time I lost something important.