yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy S21 Ultra] corey696:
this is for SAMSUNG phones only and only for S21 Series.
[Samsung Galaxy S21 Ultra] killer70107:
"YOU CAN TRY THIS METHOD ON OTHER SAMSUNG DEVICE BUT YOU WILL NEED UPDATE FILE OF ONE UI BETA 4 FOR THE DEVICE YOU TRYING TO FLASH"
[Samsung Galaxy S21 Ultra] corey696:
The Method no the file...
[Samsung Galaxy S21 Ultra] Has_anDroid:
not install zip g998b %94 failed no error reboot android 12 beta works not work google account not added google
[Samsung Galaxy S21 Ultra] ms5678:
how to safey revert to Oneui 3 stable version form Oneui 4 beta. I used adb method to upgrade to Oneui 4 bet
[Samsung Galaxy S21 Ultra] Tristan17:
You can flash AUHD firmware through Odin but when I did it I had to factory reset for it to boot
[Samsung Galaxy S21 Ultra] rafik25:
hello i have this issue :

PS C:\adb> adb reboot recovery

PS C:\adb> adb sideload update.zip

serving: 'update.zip' (~47%) adb: failed to read command: No error
[Samsung Galaxy S21 Ultra] ^^rac:
Download platform tools SDK version

SDK Platform Tools release notes | Android Studio | Android Developers

Android SDK Platform-Tools is a component for the Android SDK.

developer.android.com

Extract and run your ADB commands from that folder.
[Samsung Galaxy S21 Ultra] DS1000RR:
Hi guys, i'm not tech saavy but have a 988B exynos not rooted running the OneUI 4 beta. I did this through adb sideload. How do i go back to the stable last release of 3.1? I've tried using odin which immediately errors out.

Ive downloaded the firmware i need for my carrier, am following the guide on odin but get nowhere. Am nooby so please be less brutal lol. This is the error in odin with phone in download mode:

<ID:0/004> Odin engine v(ID:3.1401)..

<ID:0/004> File analysis..

<ID:0/004> Total Binary size: 9822 M

<ID:0/004> SetupConnection..

<ID:0/004> Initialzation..

<ID:0/004> Set PIT file..

<ID:0/004> DO NOT TURN OFF TARGET!!

<ID:0/004>

<ID:0/004> Re-Partition operation failed.

<OSM> All threads completed. (succeed 0 / failed 1)
[Samsung Galaxy S21 Ultra] Darbar1701:
988B? It should be 998B that's your problem
[Samsung Galaxy S21 Ultra] DS1000RR:
Hahahaha what a moron. Silly me! I better ask another stupid question while i'm at it then, my CSC, currently shows: BTU/BTU, BTU/EUX/BTU. I'm with EE in the UK which i believe is EVR. If i install EVR with odin is that a problem?
[Samsung Galaxy S21 Ultra] Darbar1701:
I did the same myself before when I was boozing it up! That's how I knew straight away haha
[Samsung Galaxy S21 Ultra] samurai08:
same with me, try many time still same, stuck at 47% and failed., change PC also not help.
[Samsung Galaxy S21 Ultra] jayden2009:
Does those betas updates always come that slow ?
[Samsung Galaxy S21 Ultra] Joloxx9:
Hos often should they release them?
[Samsung Galaxy S21 Ultra] khalidtarek:
"!!! Obviously Google Pay and (possibly) other banking apps don't work"

I am curious to try the ONEUI beta but i need google services and banking apps to work.

Is there anyway to install google services after flashing the firmware manually?
[Samsung Galaxy S21 Ultra] khalidtarek:
Did you install it manually like the thread explaining or you are already in a supported country to recieve it automatically?

I am not in one of the supported countries to recieve beta and the comment regarding googe play and banking apps made me wonder if i flashed a new firmware and updated to beta will google services work as expected or i will lose the support because its not official update.
[Samsung Galaxy S21 Ultra] Itroublve:
You see, getting the beta officially or not won't change anything. GPay will still not work because the beta isn't "signed". Although some banking apps will work fine, as they usually don't check for it.
[Samsung Galaxy S21 Ultra] BoyMonsteR:
all my banking apps are working.. installed beta manually.. i have one issue with my network mobile app, keeps on crashing, so i uninstalled it.. so far all apps are working normally..
[Samsung Galaxy S21 Ultra] corey696:
Where is my beta 2? Ah???? Ajajaja
[Samsung Galaxy S21 Ultra] ms5678:
Gpay worked for me for couple of days and then stopped working. All other banking apps were working. I now returned to OneUI 3
[Samsung Galaxy S21 Ultra] xAD3r1ty:
Is there any way to go back stock without formatting data? Beta has too many bugs and the multiple reboots that happen through the day are annoying
[Samsung Galaxy S21 Ultra] ^^rac:
You should be able to just flash stock FW with ODIN. Just use Home CSC in stead of normal CSC to retain your data
[Samsung Galaxy S21 Ultra] AndrzejDwo:
won't work without /data format
[Samsung Galaxy S21 Ultra] Has_anDroid:
nova legacy game graphic problem not work
[Samsung Galaxy S21 Ultra] mangup98:
hello I have a problem when I type on the computer adb divices I get an error what happens how to solve it?
[Samsung Galaxy S21 Ultra] mangup98:
what should I do, this error is coming out, my phone is from the UAE system, and this error is coming out, please help ...
[Samsung Galaxy S21 Ultra] dark_tranq:
If you need certain apps to work, then don't install a beta.
[Samsung Galaxy S21 Ultra] dark_tranq:
You need to do it in the Command Prompt, not Powershell.
[Samsung Galaxy S21 Ultra] mangup98:
I tried in cmd and it reaches 47% and it says error what should I do?
[Samsung Galaxy S21 Ultra] dark_tranq:
You're not on the right Android 11 firmware, like stated every other time in this thread.
[Samsung Galaxy S21 Ultra] mangup98:
Сијао сам систем из Немачке, али опет је телефон из УАБ -а
[Samsung Galaxy S21 Ultra] mangup98:
I have a Samsung Galaxy S21 ultra G998b DUAL SIM, but if the site can, please, which system should I flash for it, I would be very grateful to heaven
[Samsung Galaxy S21 Ultra] vaporaki:
Hello and thanks a lot for giving us the chance to see earlier the new one ui... But if i wanna go back... Should i use "factory reset"? Cause after the 3rd beta we should go at the official release and update it normally from our region i guess
[Samsung Galaxy S21 Ultra] mangup98:
can you explain to me and put the site for the system for s21 ultra g998b which system should I put in order to be able to flash the phone for those in 4.0
[Samsung Galaxy S21 Ultra] vogemic:
Typo. It's devices and not divices.
[Samsung Galaxy S21 Ultra] mangup98:
I have an s21 ultra G998b, can a good soul put a link below which system to insert for it to work in 4.0? Thank you very much from the bottom of my heart
[Samsung Galaxy S21 Ultra] :
Hi, I got a question. I'm on S21 ARO (Argentina) version which CSC version is G991BOWO3.

Can I install this Beta without any problems? If I can, can I rollback to my original version if something doesn't work?

Thanks!
[Samsung Galaxy S21 Ultra] Nmc_alves®:
FORGET.... NOP....
[Samsung Galaxy S21 Ultra] :
Okay, I'll have to wait then. Thanks for the answer
[Samsung Galaxy S21 Ultra] zSyntex:
No, unfortunately you cannot flash this firmware.
[Samsung Galaxy S21 Ultra] Artties:
I heard the second beta is out now in Korea and Germany.. anyone got the link yet? :)
[Samsung Galaxy S21 Ultra] cdion:
Our lord and saviour we need you once again
[Samsung Galaxy S21 Ultra] dmoutafi:
Can I install beta 1 using adb with this information and I yes it needs to enable any developer option except the one for adb? Thanks a lot !
[Samsung Galaxy S21 Ultra] :
Okay, so I have an S21 5G with ARO CSC (G991BOWO3) and I installed OneUI 4.0 beta 1 and is working fine.

What you have to do is Install the September security patch with CSC DBT via odin (No HOME_CSC file, but the CSC) and then install the Beta like said on this post.

Hope this helps you.
[Samsung Galaxy S21 Ultra] marcexeu:
Hello everyone, i had been using the android 12 beta (oneui 4) on my italian exynos s21 ultra, today i had updated it to the beta 2.. I wanna know, after the official release of android 12 on my device, will i be able to get it directly by android update or will i need to download a full rom an format my phone from a scratch?

Thank you in advance :)
[Samsung Galaxy S21 Ultra] jayden2009:
How did you update to beta 2 ??
[Samsung Galaxy S21 Ultra] mangup98:
how did you update beta 2?
[Samsung Galaxy S21 Ultra] AndrzejDwo:
Post in thread '[OneUi 4.0 Public Beta] Download and install in here! [Exynos)' https://xdaforums.com/t/oneui-4-0-p...-install-in-here-exynos.4333281/post-85732353
[Samsung Galaxy S21 Ultra] quite_simply_one:
Can't connect to the device with ADB when it's in recovery mode​
[Samsung Galaxy S21 Ultra] olafsand:
Hi!

If im on stock android 11 and want to install beta, do i need first beta1 and then beta2 or can i just install beta2?
[Samsung Galaxy S21 Ultra] Tristan17:
This beta is worse than the last. It's much more laggy whe opening apps and apps like Power amp won't even open anymore. How do I go back to AUHD while keeping my data. Thanks
[Samsung Galaxy S21 Ultra] Adam1906KSC:
Beta 1 UK

ZUJ1 SM-G991B From AUIE-ZUJ2

http://fota-secure-dn.ospserver.net:80/firmware/BTU/SM-G991B/nspx/9f61dff01ab64788ab95c3203a50f05f.bin?px-time=61ac665f&px-hash=a0193899d3f372d89505b873b21d282b&px-wid=9398185-WSA211006071230&px-wctime=2021-10-06%2007:12:30&px-unum=&px-nb=zxkBmlUlhe9OuEcZtFyo8w==
[Samsung Galaxy S21 Ultra] AndrzejDwo:
BETA 1 G998B XEO (direct beta 2) AUIE-->ZUJ1

http://fota-secure-dn.ospserver.net:80/firmware/XEO/SM-G998B/nspx/c1cf0b792c104712b9ed26e2b3183b46.bin?px-time=61ac6889&px-hash=dfacbc1e6241e996818b5d049cd98f00&px-wid=2889033-WSA211006072144&px-wctime=2021-10-06%2007%3A21%3A44&px-unum=&px-nb=UGtezEZ854jbmFcvWGxLEA%3D%3D
[Samsung Galaxy S21 Ultra] marcexeu:
Usino the uploaded .ben file renamed to .update.zip via ad sideload..
[Samsung Galaxy S21 Ultra] OllieD:
UK Beta 2? (Not Sure) for G996B (S21+) AUIE --> ZUJ1

http://fota-secure-dn.ospserver.net...43:35&px-unum=&px-nb=UGtezEZ854jbmFcvWGxLEA==
[Samsung Galaxy S21 Ultra] mikepa2704@gmail.com:
l'utilizzo della modalità sideload non annulla la precedente beta 1? Grazie

Mod edit : This is an English-speaking forum !

Translation:
[Samsung Galaxy S21 Ultra] marcexeu:
No.. it is AN update for it as i undestand..
[Samsung Galaxy S21 Ultra] mikepa2704@gmail.com:
fatto l'aggiornamento beta 2 su S21U per build ZUJ1, ma con mia sorpresa il tema del colore "non è disponibile quando è in uso un tema del negozio Galaxy". ??????

Mod edit : this is an English-speaking forum !

Translation:
[Samsung Galaxy S21 Ultra] mangup98:
ево мали помоћи од мене само ти мало боље прочитао мој текст и успео. . самсунг галаки с21 ултра 5г уметком упдате.зип где се налази алат. преузмите канту и промените име у упдате.зип, а затим покрените уређивање у опоравку идите на адб. онда упишите адб уређивање када се ваш уређај пронађе, идите и укуците ЦМД адб седелоад упдате зип ако и даље неће промијенити назив у Упдате -у и то је то, тако сам се добро снашао, али пре свега морате имати а за бета 1 и бета два, идеално исто и откуцати све како сам написао, али канта од 1 ГБ је бета 2, желим вам успех, здраво

Мод едит: ово је форум који говори енглески!

Превод: here's a little help from me just you read my text a little better and succeeded. . samsung galaxy s21 ultra 5g insert update.zip where the tool is located. download the bucket and change the name to update.zip, then start editing in recovery go to adb. then type adb edit when your device is found, go and type CMD adb sedeload update zip if it still won't change its name in Update and that's it, I did so well, but first of all you have to have a for beta 1 and beta two, ideally the same and type everything as I wrote, but a bucket of 1 GB is beta 2, I wish you success, hello
[Samsung Galaxy S21 Ultra] artur_spetsnaz:
Please share link of Beta 2 for S21 G991U1 🙏
[Samsung Galaxy S21 Ultra] iVesuvian:
I get the following error

this vigelanerpected build date.n the build date of this device is on

P 13 21:37.52 KST 2021.

E:Error in Isideload/package-záp (status 1)

I did all the steps and after adb sideload update.zip it reaches about 44% of installation process then it throws this error.

Any help here?

Thanks :)
[Samsung Galaxy S21 Ultra] vegetaleb:
So how's beta 2? Stable enough to ne a daily driver?
[Samsung Galaxy S21 Ultra] Sky33:
Do we have the s21+ one yet? Installed on the ultra and looking for the s21+ too! 😁
[Samsung Galaxy S21 Ultra] Sky33:
Yup. Installed and no issues so far for me. Animations are super smooth and everything is working well
[Samsung Galaxy S21 Ultra] mikepa2704@gmail.com:
The file for beta 2 on G998B with sideload process does not allow 100% installation, in two different attempts, the first at 94% and the second at 47%. When restarting, the strange thing is that the new features of beta2 lie with the limitation of the use of the color theme. Thank you
[Samsung Galaxy S21 Ultra] P-KAY 2323:
U1 is snapdragon I think. There's a different thread for it.
[Samsung Galaxy S21 Ultra] ^^rac:
Looks at the other thread... links added there

https://xdaforums.com/t/oneui-4-0-public-beta-download-and-install-in-here-exynos.4333281/
[Samsung Galaxy S21 Ultra] Khalid Madkour:
After installing beta 2 using adb

I keep getting this message with everyrestart

I installed beta2 over beta1 with sep secuirty update

i cant do factory reset because of data I have on phone and moving them to pc would take forever + moving pictures to pcand back to phone, seems like corrupting dates of the photos
[Samsung Galaxy S21 Ultra] Sky33:
You can backup your phone with smart switch and restore them back afterwards.
[Samsung Galaxy S21 Ultra] Belco02:
Beta2 apps port
[Samsung Galaxy S21 Ultra] ztrafeswe:
When I updated to the beta 2 i get the old beta 1. The link is wrong.
[Samsung Galaxy S21 Ultra] jayden2009:
After lots of lag etc all of a sudden my phone is buttery smooth with beta 2👀
[Samsung Galaxy S21 Ultra] ztrafeswe:
Can you link to beta 2?
[Samsung Galaxy S21 Ultra] AndrzejDwo:
Which phone model?
[Samsung Galaxy S21 Ultra] Trikfok:
how do you install beta 2 on s21 + the link where it is. I have the October patch on Germany AUIE firmware

Thank you
[Samsung Galaxy S21 Ultra] ztrafeswe:
s21 ultra
[Samsung Galaxy S21 Ultra] AndrzejDwo:
you want direct beta 2 from A11 or from beta 1?
[Samsung Galaxy S21 Ultra] ztrafeswe:
form beta 1
[Samsung Galaxy S21 Ultra] AndrzejDwo:
here

http://fota-secure-dn.ospserver.net/firmware/DBT/SM-G998B/nspx/0eb1d347a3234baab006bb952197213d.bin?px-time=61ab59d5&px-hash=943b94a71a7842535efd608d4c8dc51e&px-wid=3371544-WSA211005120644&px-wctime=2021-10-05%2012:06:44&px-unum=&px-nb=UGtezEZ854jbmFcvWGxLEA==
[Samsung Galaxy S21 Ultra] ztrafeswe:
didn't work. I have installed beta 2 in the TS post. But I didn't get material U. Maybe the phone is up to date.
[Samsung Galaxy S21 Ultra] BredzProh:
Hey there! Sorry for being this late, but I finally created the guide.

You can check it out here.

I hope it helps! If you have any issues, please let me know and I'll try to help!
[Samsung Galaxy S21 Ultra] Tristan17:
Wow the battery is horrible on beta 2 (this is with airplane mode and WiFi on the entire time BTW)
[Samsung Galaxy S21 Ultra] BiG_FooT:
Agree, battery life is very very bad on beta 2
[Samsung Galaxy S21 Ultra] SpeedyFlinky:
How can I go back to Beta 1 from Beta 2? I can't get out via smart switch either. After downloading and restarting in download mode, the installation on Smart Switch aborts
[Samsung Galaxy S21 Ultra] cambioyehn31:
good after master ,i have samsung gallaxy s21 ultra with Baseband version G998BXXU3AUIF and aleardy updated this month end of september, my question is can i avail or i can install this beta 2 update in my device s21 ultra ???
[Samsung Galaxy S21 Ultra] ic3cub3:
AUHD it`s not the latest firmware.

I have version AUIE - Kernel Version 13th Of september

G998BXXU3AUIE - Security Patch october 1 -2021

Which suchs because i received the update few weeks ago from AUHD.
[Samsung Galaxy S21 Ultra] AndrzejDwo:
You can flash direct beta 2 from BTU or XEO.
[Samsung Galaxy S21 Ultra] ic3cub3:
Errors at 47%

This device has unexpected build date.; the build date of this device is "Mon Sep 13 13 21:37:21 KST 2021"

E: Error in /sideload/package.zip (Status 1)

Install from ADB completed with Status 1

Installation aborted
[Samsung Galaxy S21 Ultra] AndrzejDwo:
Are you sure you flashed correct zip?

Post in thread '[OneUI 4.0 Beta 1 & 2](EXYNOS) Update.zip for S21 / Plus / Ultra - Download OTA Link' https://xdaforums.com/t/oneui-4-0-b...ultra-download-ota-link.4333487/post-85736357
[Samsung Galaxy S21 Ultra] venki5star:
Anyone have Downgrade solution? I installed the beta 1 & 2 after changing the CSC. So, SmartSwitch solution doesn't work for me. I need Samsung Pay or Google Pay... Both not working in Beta
[Samsung Galaxy S21 Ultra] Tristan17:
I just downgraded to AUIE from beta 2 with Odin and restored backup with smart switch. You need to flash CSC and not HOME_CSC otherwise the phone will BOOTLOOP and the only way to start the phone is by factory resetting (I learnt the hard way - recovery mode asks to factory reset).
[Samsung Galaxy S21 Ultra] venki5star:
Unfortunately, Odin fails to update. Fails on SetupConnection step.
[Samsung Galaxy S21 Ultra] venki5star:
Managed to downgrade now. Tried with different cable, different PC and turned off USB Debugging. Don't know which one fixed the issue. But good result at the end.
[Samsung Galaxy S21 Ultra] ntinosterpsis:
Can I update to beta 2 or I have to flash beta 1 first ?
[Samsung Galaxy S21 Ultra] venki5star:
You have to follow the order... Check the instructions in the first post
[Samsung Galaxy S21 Ultra] ntinosterpsis:
So I will flash beta 1 and then beta 2. Correct ?
[Samsung Galaxy S21 Ultra] venki5star:
Yes. Make sure you at "AUIE" stock rom. Then update Beta 1 and then Beta 2
[Samsung Galaxy S21 Ultra] ntinosterpsis:
Is my csc compatible ? I flash beta 1 and at 47% it stops .
[Samsung Galaxy S21 Ultra] AndrzejDwo:
You can flash only direct beta 2 from AUIE. There are BTU and XEO links in the thread. Good luck.
[Samsung Galaxy S21 Ultra] mikey_sk:
quick q. if i install the one ui 4 beta , will it update to the final non beta version when its released via ota?
[Samsung Galaxy S21 Ultra] carlitobahsoun:
nope , u will install last beta like beta 1 and 2 .

once all region receive it ota than u can download full firmware and flash odin with full wipe ( my opinion ) than u will receive ota in every patch come out.

but if u install beta 1 and 2 etc manually u will not receive ota coz u are not registered to beta program .

hope i help
[Samsung Galaxy S21 Ultra] mikey_sk:
I installed one ui beta from the Samsung members app by activating my status as a beta tester. It allowed me to update to the beta on the phone update. I would have thought once the non beta fonntelesr comes out it will install that?
[Samsung Galaxy S21 Ultra] corey696:
Beta 3 is out today!
[Samsung Galaxy S21 Ultra] Adam1906KSC:
Where? IN UK nothing now
[Samsung Galaxy S21 Ultra] corey696:
Start in Korea
[Samsung Galaxy S21 Ultra] clodoux:
Korea only for now
[Samsung Galaxy S21 Ultra] corey696:
https://www.sammobile.com/news/3rd-one-ui-4-0-beta-update-live-galaxy-s21-redesigns-weather-app/
[Samsung Galaxy S21 Ultra] Dragon1996:
Alliance sheild x no longer works it crashes every time you try to open
[Samsung Galaxy S21 Ultra] clodoux:
Not for me. It work. Just tried.
[Samsung Galaxy S21 Ultra] Dragon1996:
Is ok i fixed
[Samsung Galaxy S21 Ultra] Adam1906KSC:
SM-G991B Beta 2 UK

ZUJ1-ZUJG

http://fota-secure-dn.ospserver.net:80/firmware/BTU/SM-G991B/nspx/72362a8dc65c4559b3ba3291a4266fcb.bin?px-time=61c1c88e&px-hash=6252b8e1de3f3df570bdabcf65d85ad9&px-wid=5399826-WSA211022122901&px-wctime=2021-10-22%2012:29:01&px-unum=&px-nb=UGtezEZ854jbmFcvWGxLEA==
[Samsung Galaxy S21 Ultra] kunlegzy:
The best better ever BeTa 3 😁
[Samsung Galaxy S21 Ultra] ztrafeswe:
Any link for beta 2 to beta 3? :)
[Samsung Galaxy S21 Ultra] Nmc_alves®:
SM-G991B Beta 2 UK

ZUJ1-ZUJG

http://fota-secure-dn.ospserver.net:80/firmware/BTU/SM-G991B/nspx/72362a8dc65c4559b3ba3291a4266fcb.bin?px-time=61c1c88e&px-hash=6252b8e1de3f3df570bdabcf65d85ad9&px-wid=5399826-WSA211022122901&px-wctime=2021-10-22%2012:29:01&px-unum=&px-nb=UGtezEZ854jbmFcvWGxLEA==

this is beta 3 but only second on uk

Reactions:corey696, tha4, BiG_FooT and 3 others
[Samsung Galaxy S21 Ultra] ztrafeswe:
Didn't work because only UK? :(
[Samsung Galaxy S21 Ultra] Nmc_alves®:
No, is ok for all G99*BXXU3ZUJ1 OXM CSC, hare you on version G99*BXXU3ZUJ1 Android 12 or Android11???

You need to be on version G99*BXXU3ZUJ1
[Samsung Galaxy S21 Ultra] ztrafeswe:
The phone is on that version. I will test again

thank you
[Samsung Galaxy S21 Ultra] Nmc_alves®:
Is your phone S21 SM-G991B????
[Samsung Galaxy S21 Ultra] ztrafeswe:
this package is for "ols" devices: this is a "p3s"
[Samsung Galaxy S21 Ultra] ztrafeswe:
SM-G998B/DS
[Samsung Galaxy S21 Ultra] carlitobahsoun:
plz say what and how u did to try helping u
[Samsung Galaxy S21 Ultra] BredzProh:
First "cd ..."

Then sideload update.zip (you don't need to write the full directory anymore here).
[Samsung Galaxy S21 Ultra] KokosTech:
I made a little text tutorial on how to do it. Retry everything again and tell us the result.
[Samsung Galaxy S21 Ultra] KokosTech:
Ok, so now I added a little text tutorial as well as trying it on my S21 Ultra (my main device) myself. It's quite stable for a beta release and I'm yet to try Google Pay
[Samsung Galaxy S21 Ultra] BredzProh:
I am assuming USB debugging and all are on.

Maybe the builds are not compatible? For example trying to install with a August patch when you should have September patch. Or flashing an Exynos build on a Snapdragon device.
[Samsung Galaxy S21 Ultra] 海哭的浪漫:
比如oneui4.0如何ROOT

May I ask how to ROOT for oneui4.0
[Samsung Galaxy S21 Ultra] dr.ketan:
Translate : How does oneui4.0 ROOT

Same like A11

Flash A11 TWRP and flash magisk 23.0.zip

PS : Kindly use english in this forum.
[Samsung Galaxy S21 Ultra] fonix232:
Technically you don't need to change the file extension - .bin works just fine for me:

❯ adb sideload 1887d66f64ef484fac20853eace3a801.bin
serving: '1887d66f64ef484fac20853eace3a801.bin' (~86%)
[Samsung Galaxy S21 Ultra] 海哭的浪漫:
OK Thank you
[Samsung Galaxy S21 Ultra] siedenburg:
as I posted in the other thread, there seems to be restrictions to the version

current_version=G998BXXS3AUHD/G998BOXM3AUHB/G998BXXU3AUHB
updated_version=G998BXXU3ZUID/G998BOXM3ZUID/G998BXXU3ZUIC

source_ap_build_date=Thu Aug 19 20:45:26 KST 2021
target_ap_build_date=Sat Sep 11 11:51:43 KST 2021

csc_information=OXM(3IE ACR AFG AFR AVF AMO ATL ATO AUT BGL BKD BOG BTB BTC BTE BTU CAL CAU CHO CNX COA COS CPW CRO DBT DKR DRE DTM ECT EGY EON EUR EUX EUY EVR FTM FWD GLB GTO H3G HTS HUI ILO ILP INU ITV KSA LUX LYS MAX MBM MEO MET MID MM1 MOB MOT MSR MWD MYM NEE NPL O2C O2U OMN OPS OPV ORO ORS ORX PAK PHE PHN PLS PRT ROM SEB SEE SEK SER SFR SIM SIN SIO SKZ SLK SRR STH SWC TCL TEL THL TIM TKD TMH TMS TMZ TNL TOP TPA TPH TPL TSI TUN TUR VAU VD2 VDC VDF VDI VGR VIP VOD XEC XEF XEH XEO XEZ XFA XFE XFV XME XNZ XSA XSG XSP XTC XXV WWA WWC WWD)

my version was build on the 17th and I get an error if I want to sideload the update.
[Samsung Galaxy S21 Ultra] zige:
Something wrong with OTA link at seconds post? Doesnt do anything for me. Blank window tab opens and closes immediately.

NVM, working now.
[Samsung Galaxy S21 Ultra] frostnicko:
S21 Plus 🥲🥲🥲Anyone havent ota link for S21 Plus
[Samsung Galaxy S21 Ultra] Ryan1469:
I am keep getting "cannot read zip file" error in the adb. I did update my phone to the latest September DBT firmware and downloaded update file few times but still no luck.
[Samsung Galaxy S21 Ultra] zachary96:
The link isn't working. How am I meant to download it?
[Samsung Galaxy S21 Ultra] B0risblade:
Good evening everyone!

Update problem

unable to use metadata to correct errors

E2004: prism partition fails to recover

E:Errors in /sideload/package.zip (status 1)

Install from ADB copmleted with status 503

Installation aborted
[Samsung Galaxy S21 Ultra] biden_trump:
exactly the same error... i wondered if anyone got it installed via adb (NON ROOTED)
[Samsung Galaxy S21 Ultra] Calvofernan:
abd sideload update.zip
[Samsung Galaxy S21 Ultra] Yeisonp:
i got this error... AUHB

if i reboot my devices it will start correctly?

PD: I restart my devices, and everything its ok!!