yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy S21 Ultra] mac796:
So I just ordered an s21 ultra used

SM-G998U1 will I be able to unlock this bootloader. Supposed to be a unlocked version straight from Samsung. I been out of the Samsung game for awhile. My last one was a s3. Hope I didn't make a mistake.​
[Samsung Galaxy S21 Ultra] elliwigy:
Depends on what firmware its on, if its updated beyond rev1 firmware (which is likely) then cant unlock the BL.. if you get lucky and it is then well, youre in luck! lol
[Samsung Galaxy S21 Ultra] mac796:
Thanks for response. I should have done a little more research. Im used to the pixels and one plus.
[Samsung Galaxy S21 Ultra] Carloshz21:
afaneh92 hi this is my return to android since S5 just got S21 ultra 5G could you let me know if it's rootable I don't have OEM unlock option in developer and I understand I would have to pay but idk if I can do it with mine pls let me know if possible thanks

I attached the screenshot
[Samsung Galaxy S21 Ultra] afaneh92:
Rev 4 can't be unlocked yet, only rev 1
[Samsung Galaxy S21 Ultra] Carloshz21:
Thanks for the reply 👍
[Samsung Galaxy S21 Ultra] DKSE:
afaneh92 Any hope for SM-G991U?
[Samsung Galaxy S21 Ultra] afaneh92:
Can be unlocked on rev 1 bootloader
[Samsung Galaxy S21 Ultra] DKSE:
I don't know how tell which rev but I'm guessing I'm out of luck.
[Samsung Galaxy S21 Ultra] afaneh92:
5th character from the right on build number is 4

Cant be unlocked
[Samsung Galaxy S21 Ultra] wsnow:
hi. is this applicable for the Android v 12 on SM-G998B ?
[Samsung Galaxy S21 Ultra] afaneh92:
Yes
[Samsung Galaxy S21 Ultra] wsnow:
3 times tried all steps in the first post, result is nothing.

magisk 23 do not pass safetynet , canary magisk have safety net even.

both of them having only "select and patch the file" method , and no other options.
[Samsung Galaxy S21 Ultra] afaneh92:
use canary with universal saftynet fix 2.2
[Samsung Galaxy S21 Ultra] wsnow:
no idea how to proceed. magisk has modules section inactive (canary one). v 23 have no options either
[Samsung Galaxy S21 Ultra] afaneh92:
flash it in twrp
[Samsung Galaxy S21 Ultra] wsnow:
i will try to downgrade to android 11 and retry. TWPR also not worked.
[Samsung Galaxy S21 Ultra] afaneh92:
Then you are flashing wrong twrp
[Samsung Galaxy S21 Ultra] wsnow:
tried all 4 variants from this thread here , odin confirms flash without errors . but after reboot into recovery getting this
[Samsung Galaxy S21 Ultra] afaneh92:
Strange, all of them working.

To be sure you have S21 ultra exynos G998B and used p3s twrp?

I think you did something wrong
[Samsung Galaxy S21 Ultra] wsnow:
yes
[Samsung Galaxy S21 Ultra] afaneh92:
Then you are not following the instructions
[Samsung Galaxy S21 Ultra] DKSE:
Think there will be a crack in the future? Is there anything I can do to block any further updates just in case?
[Samsung Galaxy S21 Ultra] afaneh92:
I hope so.

Disable auto update from dev options. Then type the following in cmd/terminal while usb debugging on:

adb shell pm disable-user --user 0 com.sec.android.soagent

adb shell pm disable-user --user 0 com.wssyncmldm

adb shell pm disable-user --user 0 com.samsung.sdm

adb shell pm disable-user --user 0 com.samsung.sdm.sdmviewer

adb shell pm disable-user --user 0 com.ws.dm

Ignore the error out if package doesn't exist.
[Samsung Galaxy S21 Ultra] Nchls:
Does rooting works for Exynos S21 Ultra on Android 12?
[Samsung Galaxy S21 Ultra] saeed81:
hi

tried all steps in the first post, result is nothing.bootloader is ok but root not working

one ui ver 4 android 12 G998BXXU3BUKG

try to magisk 23 and canary
[Samsung Galaxy S21 Ultra] afaneh92:
Yes can be rooted using magisk canary
[Samsung Galaxy S21 Ultra] wsnow:
as it was expected , after downgrade to android 11 - everything were done in one shoot.

TWPR and Magisk installed and working.

android 12 on SM-G998B can't be confirmed as having ability to root and replace custom recovery (at least for me)
[Samsung Galaxy S21 Ultra] LHHHHH:
I also encountered the same problem as described above, my current device is the G998N system is One UI 4. I used the way I used the landlord to run success, but since I upgrade to Android 12
[Samsung Galaxy S21 Ultra] afaneh92:
Im on 12 with BUK8 build, magisk 23015 and root is running with no issues

if someone has issue with magisk canary post more info other wise you will be ignored
[Samsung Galaxy S21 Ultra] LHHHHH:
I finally got root in place by patching with this version of magisk cannary. Thank you!
[Samsung Galaxy S21 Ultra] Sconny:
So if i Got it right, just pull the boot.img, patch it, make it a .tar file and then simply flash via odin in AP section? And does that wipe data? Since i am just flashing the boot partition and not CSC
[Samsung Galaxy S21 Ultra] Carloshz21:
Is there any way to stop this?? I didnt schedule update and i have auto update disabled on Developer. Sorry for posting here if its the wrong place
[Samsung Galaxy S21 Ultra] afaneh92:
If you are unlocked bootloader, no.
[Samsung Galaxy S21 Ultra] afaneh92:
Disable auto update from dev options. Then type the following in cmd/terminal while usb debugging on:

adb shell pm disable-user --user 0 com.sec.android.soagent

adb shell pm disable-user --user 0 com.wssyncmldm

adb shell pm disable-user --user 0 com.samsung.sdm

adb shell pm disable-user --user 0 com.samsung.sdm.sdmviewer

adb shell pm disable-user --user 0 com.ws.dm

Ignore the error out if package doesn't exist.
[Samsung Galaxy S21 Ultra] Carloshz21:
Thanks a lot
[Samsung Galaxy S21 Ultra] Sconny:
It's unlocked, boot.img patched, so I won't loose my data. Nice thanks mate
[Samsung Galaxy S21 Ultra] Carloshz21:
Hey me again asking

But was wondering if there's a way to gain root access on S21 ultra /us. Without unlocking the bootloader not trying to flash any custom rooms
[Samsung Galaxy S21 Ultra] afaneh92:
No
[Samsung Galaxy S21 Ultra] burnxtc:
First of all, thank you @afaneh92 for all of the hard work you & others have done. I have read through every single post in this thread as I always do when I'm about to purchase & root a device.

I remember back in the day paying for Sunshine to root an old Motorola phone & I'll be willing to pay for the key this go around as well. Supporting this work is integral and part of what separates our community from the iphone sheep. In the meantime, I will sit tight for a solution for those of us on US build 4+ and contribute where I can.

This is probably going to be a hard question to answer due to the issues the US root is facing. I am always curious what "common man" apps will fail - such as the Bank of America app. It's reasonable to assume a lot of these apps will fail, but I'd be very curious as to the specifics outside of the ones mentioned in this thread (such as native Samsung apps). If anyone who has successfully rooted can attest to this, that'd be great.

Right now I'm on a rooted Moto Z3 play and am looking to go cutting edge again, so I'm looking at the s21 Ultra. It's being offered to me as a Christmas gift and Best Buy has a pretty slick deal on it (if anyone wants details as to how this "activation at the store" thing works with BB, let me know and I'll reply). I am hesitant to get the s21 Ultra because quite honestly, my Z3 play - while dated - is set up pretty darn killer right now. And the BoA app I mentioned earlier - along with every other app I use - works like a champ.

"If it ain't broke" has bitten me in the past before, I am thinking of just staying on my z3 play. Heh.

All the best from me in the holiday season.
[Samsung Galaxy S21 Ultra] afaneh92:
Thanks, Im on rooted S21 and my bank app works on magisk canary, wasn't working on stable. So it depends on root method and app itself how it detect root.

Samsung apps like pay, pass and secure folder are broken, maybe there a fix but I don't care.
[Samsung Galaxy S21 Ultra] burnxtc:
Agreed - I don't care about those apps either.

I'm really on the fence. From a utilitarian perspective, my z3 is just killer. Exactly how I want it. But the performance is weak & I'm so tired of everyone with iphones having 10000% better pictures then me. Seems the s21 Ultra is getting damn close picture quality wise - I want it!
[Samsung Galaxy S21 Ultra] burnxtc:
Pulled the trigger, I'll have it on the 21st. lol....
[Samsung Galaxy S21 Ultra] afaneh92:
make sure it can be unlocked
[Samsung Galaxy S21 Ultra] maddoggin:
I have a g998u/TMB running G998U1 /XAA. Installed magisk canary and says ram disk =yes.

That's about as far as I went because when. It says to check box allow oem unlocking in developer options mine doesn't have that option. Can some one tell me the next step?

I'm trying to unlock bootloader to allow root!
[Samsung Galaxy S21 Ultra] afaneh92:
US devices has no oem unlock toggle, can be unlocked only on v1 bootloader
[Samsung Galaxy S21 Ultra] maddoggin:
Can you explain please? What is v1 bootloader? How do I get on it? Is G998U snapdragon tmb able to unlock?
[Samsung Galaxy S21 Ultra] afaneh92:
5th character from the right on build number
[Samsung Galaxy S21 Ultra] maddoggin:
I have G998U/TMB but I flashed G998U1/XAA bukf rom
[Samsung Galaxy S21 Ultra] afaneh92:
You are on v4 no way to unlock
[Samsung Galaxy S21 Ultra] Carloshz21:
Hey bro any way of knowing when v4 would be able to be worked with like how long does a new bootloader version takes to be unlocked
[Samsung Galaxy S21 Ultra] afaneh92:
No one knows.
[Samsung Galaxy S21 Ultra] dodo0791:
Thanks
[Samsung Galaxy S21 Ultra] laolaxyz:
May I ask what you did with the boot.img.LZ4 ? Neither WinRAR nor 7Zip recognize this as compressed format...
[Samsung Galaxy S21 Ultra] afaneh92:
Release 7-Zip ZS 21.03 - v1.5.0 - Release 2 · mcmilk/7-Zip-zstd

New Features and Bugfixes: update 7-Zip to version 21.03 fix zstd property issue, thanks @sebres fix #223 and LZMA decoding speed Compression versions in this release: Brotli Version 1.0.9 Fast ...

github.com
[Samsung Galaxy S21 Ultra] Chaitanyapatel8880:
Hi. I am having difficulty. I have s21 ultra. it stops at AP patching in magisk app. it says process error. and then installation failed just after meta-data/fota.zip.

Any ideas?

UPDATE: Never mind. It worked today.
[Samsung Galaxy S21 Ultra] izoneus:
how can i unblock BL in europe? i cant see oem option in developer i tryed combinations with data but still doesnt help :(
[Samsung Galaxy S21 Ultra] korsnick:
So does anyone know if the devices currently shipping from Samsung still have the v1 bootloader and thus are worth getting?

I'm wondering if they're coming with newer bootloaders from the factory this late in the game.
[Samsung Galaxy S21 Ultra] afaneh92:
At least post your model.
[Samsung Galaxy S21 Ultra] afaneh92:
Usually updated to latest
[Samsung Galaxy S21 Ultra] this.guy.lol:
can the EU sammy devices still be rooted on any bootloader?
[Samsung Galaxy S21 Ultra] korsnick:
So if that's the case, what is the best foreign model to get for those of us wanting to root in the US?
[Samsung Galaxy S21 Ultra] afaneh92:
S9+
[Samsung Galaxy S21 Ultra] izoneus:
how can i unclock operator block in EU i have s21 plus exynos and android 12 BL locked
[Samsung Galaxy S21 Ultra] this.guy.lol:
Did anybody answer me if this model of European exynos can still be rooted on any bootloader? Due to the US killing off the 3G towers everyone's forced to have to buy a phone that's 5G compatible. If that wasn't the case I'd still have my note 9. I sadly have a OnePlus 9 pro now and I hate it!... Would love to buy this phone and root it if it's able to be rooted without having to be on a bootloader one or whatever. Thanks!
[Samsung Galaxy S21 Ultra] korsnick:
So I was able to find this tmobile 512gb model that has a 4 in the fifth position. Are you saying I can revert this back to version 1 so I can unlock the BL and then root it?
[Samsung Galaxy S21 Ultra] afaneh92:
No you cant, Maybe I was referring to something else. You can't downgrade to lower bit unless you have dev device.
[Samsung Galaxy S21 Ultra] korsnick:
Bummer. Oh well, guess I'll just have to grab one of the HK models I found that are still available.
[Samsung Galaxy S21 Ultra] afaneh92:
HK and Exynos are unlockable
[Samsung Galaxy S21 Ultra] this.guy.lol:
Is that on any bootloader?
[Samsung Galaxy S21 Ultra] this.guy.lol:
I basically want to know and need to know if I buy the European model with the exynos chip can I root it on any bootloader? It's kind of the one thing I hate about all these new phones that have to have certain requirements reminds me of a damn iPhone jailbreak or a PS3 jailbreak 😡🤯
[Samsung Galaxy S21 Ultra] Simba2022:
Once the phone is on Android 12 is there a way to rollback to Android 11? I'm trying in Odin and its not working.
[Samsung Galaxy S21 Ultra] afaneh92:
I think there is 6+ variants of S21 and you need to mention what is yours and what is your bootloader version.
[Samsung Galaxy S21 Ultra] Simba2022:
Oh sorry its a SM-G991B TPA Country code, Baseband is G981BXXU5BTJ7. I've already unlocked the bootloader too. Just tried flashing a stock Android 11 firmware with Odin and it wasn't seeming to work. Phone was already on Android 12 when i got it latest firmware.
[Samsung Galaxy S21 Ultra] afaneh92:
you are on v5 and android 11 is v3 bootloader no way
[Samsung Galaxy S21 Ultra] Ivymike52:
Can't root last firmware. Odin stop flashing after UH and VBMETA
[Samsung Galaxy S21 Ultra] afaneh92:
Last firmware is ok, just post your error.
[Samsung Galaxy S21 Ultra] Ivymike52:
As i told, i patched AP from DEVB1 firmware with magisk, as usual.

When i lanch flashing with magisk, at UH and VBMETA process stops.

I have to unplug cable and reboot phone
[Samsung Galaxy S21 Ultra] afaneh92:
Use twrp instructions
[Samsung Galaxy S21 Ultra] Ivymike52:
which thread?
[Samsung Galaxy S21 Ultra] afaneh92:
I just noticed you posted 2 devices not one

S21 or s20?
[Samsung Galaxy S21 Ultra] Ivymike52:
S21 obviously
[Samsung Galaxy S21 Ultra] JazonX:
Hey Guys,

What's the working method to hide Magisk from Apps ?

DenyList isn't that effective. Is there another foolproof solid method ?
[Samsung Galaxy S21 Ultra] sketchscarz:
so weird thing i noticed.. I have and eSIM as a second SIM card but not dual sim slots, also The device is carrier unlocked. Why is that? although oem unlock is not there would i be able to flash to an earlier firmware to get the oem unlock option? And what the heck is CONN_GADGET?

Also trying to downgrade to bootloader v1 via odin G998USQU1AUA4. am i able to without bricking the phone?
[Samsung Galaxy S21 Ultra] sketchscarz:
I just opted out of the one ui beta. Hopefully ill go back to bl v1!
[Samsung Galaxy S21 Ultra] sketchscarz:
Am i able to flash magisk in twrp without bl unlock?
[Samsung Galaxy S21 Ultra] JazonX:
How to update a rooted stock rom without losing data ?
[Samsung Galaxy S21 Ultra] sketchscarz:
Use smart switch or titanium backup to save the rom state. Depends on what your want to upgrade to?
[Samsung Galaxy S21 Ultra] RAFAEL GAIZKA MAHENDRA:
Nice
[Samsung Galaxy S21 Ultra] HittinBottom:
Hello everyone, for a few months now (a day here or a day there) I've been struggling to root my Korean S21 with ZERO success. Can I get a some help/guidance please? Better yet, I'd gladly pay a reasonable fee to have this done for me.
[Samsung Galaxy S21 Ultra] passionicon:
Hi all, just want to ask a few questions and will appreciate all the responses i can get. I'm on G998u1.

I read that rooting trips knox, don't reallycare ,but does Samsung pay still work after rooting?

Also, will i be able to successfully install xposed framework after magisk root. It's literally the only reason i want to root because i use some xposed modules at work.

Finally, does this method still work? I'm on latest march 1 security patch +oneui 4.1

Thanks in anticipation
[Samsung Galaxy S21 Ultra] basem55:
Hi,

Is it normal that the Magisk Modules Not Showing Up ?

See attached images kindly,

I have Rooted by Recovery method ,

And I'm coming from old Samsung S7,

and the Magisk Modules were Showing Up.

My current system:

Samsung S21 SM-G998B/DS

Android 11

PDA : G998BXXU3AUHB

One Ui 3.1

Magisk v24.0

LSPosed 1.83

____________

Sorry for my bad English, and thanks in advance.
[Samsung Galaxy S21 Ultra] ebowen 747:
I have S21U g9980, unlocked bootloader. If I update firmware will I need to unlock again. On one UI 3.1 Android 11. Want to upgrade to 4.1 Android 12. Can I upgrade and retain bootloader unlock and root?
[Samsung Galaxy S21 Ultra] Mon732003:
Good pro 👍
[Samsung Galaxy S21 Ultra] Valiante:
I'm not sure if search on XDA is messed up or what. No mention of the S22 in the thread.

Can anyone verify if this works for the S22 as well?
[Samsung Galaxy S21 Ultra] afaneh92:
Yes same can apply to S22
[Samsung Galaxy S21 Ultra] JD_888:
I'm on Boost mobile network Galaxy S21 5g SM-G991U software ver. G991USQS5CVHC

running all the latest security patches & such

Is this method still valid & if so will it work for my model? I only want to root to be able to install/run apps that won't work properly without root access, & don't plan on making any extreme modifications beyond the initial root.

(P.s. Any links to threads or ways to find threads & people that I can talk to personally one on one with or anything like that would be greatly appreciated!)
[Samsung Galaxy S21 Ultra] afaneh92:
You are on v5 bootloader, only v1 can be unlocked
[Samsung Galaxy S21 Ultra] WALEEDALMOALLEM:
Its work with my sm-G998B android 13 beta 3 OneUI 5

THanks pro
[Samsung Galaxy S21 Ultra] korsnick:
I have a Hong Kong SM-G9980 and by following the steps in post #85 of this thread, I was able to get the OEM Unlock option to show up in the menu. When I then tried to go into the bootloader screen:

instead of he long press to unlock it, i did a short press and then had to reboot to try again. However the OEM unlock was no longer in the Developer Options menu. I tried a Factory Reset and then went through the steps in post #85 but cannot get the OEM Unlock option to appear again. Any thoughts on what I can do at this point?

UPDATE:

I did another factory reset, went through the steps in post #85 again and this time was able to get the OEM Unlock toggle to show up- and it was already turned on. When I powered off the phone, connected the USB cable and held down the vol up and down buttons, I got a blue screen like the picture above, but there was no 'Device unlock mode' option. So still no joy...
[Samsung Galaxy S21 Ultra] afaneh92:
post download mode picture or at least kg status
[Samsung Galaxy S21 Ultra] korsnick:
Sounds like nobody has seen this before. Really sucks because I ordered this phone specifically so I could get root on it- something I couldn't do with my TMO model. Guess I'm just gonna have to put it up for sale then.
[Samsung Galaxy S21 Ultra] korsnick:
Well I was actually able to get the unlock option to show up by putting a SIM in the phone and going through all the steps once more. So yay!
[Samsung Galaxy S21 Ultra] Quayron:
so last year there was certain versions wasnt able to unlock due to uiversion,, did we fix that is all s21u versions unlockable now or is there any list of available versions , can somrone give me hand very quick please
[Samsung Galaxy S21 Ultra] mon0theist:
Which is the best variant to buy for the easiest way to root? Would SM-G998U1 be good?
[Samsung Galaxy S21 Ultra] afaneh92:
No, US device can be unlocked on v1 bootloader only and cost you money
[Samsung Galaxy S21 Ultra] thechaoz:
I have Android 13

I don't see oem unlocking in dev options nor is it available in search
[Samsung Galaxy S21 Ultra] DaeDae<3:
Is it possible to root Samsung S21 5G SM-G991U Snapdragon 888??
[Samsung Galaxy S21 Ultra] afaneh92:
only v1 bootloader of the model
[Samsung Galaxy S21 Ultra] Mchlbenner51:
Samsung Galaxy S21 Ultra 5G SM-G998B can this one be rooted?

Samsung Galaxy S21 Ultra 5G SM-G998B can this be bootloader unlocked?

Thanks
[Samsung Galaxy S21 Ultra] Dragon1996:
Hi i have g991b and no option for oem unlock its an exynos chip, and i tryed time and date method plz help
[Samsung Galaxy S21 Ultra] Lukyboy18:
Hello, I have an SM-G998U1 smartphone, however I don't see the OEM unlock option, what should I do?
[Samsung Galaxy S21 Ultra] ebowen 747:
Is Android 13 still bootloader unlockable on sm-g9980?
[Samsung Galaxy S21 Ultra] Shaharyarkhann:
Helo i want to root my device my device is sumsung s21+
[Samsung Galaxy S21 Ultra] zlandry:
cannot activate bootloader on SM-G991U

6 bit security
[Samsung Galaxy S21 Ultra] perambulate123:
I have S21 ultra SM-G998N. It has a black area of dead pixels on one side from perhaps some damage though no damage is visible. On a bright white screen such as Google Maps or a bright Youtube video, the area below the dead pixel black spot across the screen goes a dark shade. If I enable automatic brighness control and set other settings to lowest fidelity or color settings then screen is all good except for Google maps which must be in dark mode. But movies all play perfectly and most uses are fine.

I have a Huawei with a much worse damaged screen that flickers crazily from green to normal at ramdom. But in the display settings under Eye comfort is a setting called anti-flickering (that is NOT in the Samsung settings). If checked then display works almost perfectly except for an occaisonal green flicker when it awakes.

Is there any Magisk module that will imitate this Huawei anti-flickering setting - that I can install on my Samsung. I have already unlocked the bootloader and rooted it.

Incidentally I did a factory reset and the phone is now unrooted and I can OTA update phone through settings.
[Samsung Galaxy S21 Ultra] Dragon1996:
I never get the oem unlock option show up, tried every trick
[Samsung Galaxy S21 Ultra] MP808:
You've tried everything, huh?? Your last picture shows you haven't even enabled developer mode 🤔

Read before you post... You may just find your answer 😉
[Samsung Galaxy S21 Ultra] Dragon1996:
It is enabled thats literally 1st thing i did, not my first time unlocking one
[Samsung Galaxy S21 Ultra] MP808:
I was going by the photo you last posted. I didn't see dev mode there. You should see developer mode in 'About' and if your model has an unlocked bootloader, you would be able to choose OEM.... Mine doesn't either. I use G991U but I don't have the version 1 bootloader. Good luck 👍
[Samsung Galaxy S21 Ultra] DaeDae<3:
Previously stated to me: this is not possible on any other version of bootloader except for the 1.0 bootloader for this specific model. SM-G991U
[Samsung Galaxy S21 Ultra] Dragon1996:
How do you revert to v1 bootloader? Is it possible?
[Samsung Galaxy S21 Ultra] xeno4510:
hey guys, i recently purhcased a samsung s21+ on android 13, CN version, SM-G9960 with the snapdragon 888 and has the BL unlocked already. OEM unlock is turned on and greyed out. Im trying to root it now following the steps on this thread. As i am not very familiar with these, i am also looking at youtube videos. My question is do i have to flash the patched boot.img via fastboot or just flashing the patched AP via Odin will do. I am not too sure how to use fastboot etc. I have tried adb reboot bootloader and it restarts the phone after showing a screen of chinese words which translates to device has been unlock do not save any important data etc. appreciate any help
[Samsung Galaxy S21 Ultra] DaeDae<3:
Per my knowledge, absolutely not. If the device is carrier locked than it's even more difficult as there is a chip in the device that will absolutely refuse any other firmware than the same carrier firmware.
[Samsung Galaxy S21 Ultra] DaeDae<3:
Snapdragon doesn't have a BL to be unlocked... something is very very wrong here. Also, that would be Korean (Hangul) that you are seeing. Samsung is a south-korean based company.
[Samsung Galaxy S21 Ultra] DaeDae<3:
Now if you have an EXYNOS device (download cpu-z on playstore, it will tell you. Then you should already have the OEM option available.
[Samsung Galaxy S21 Ultra] Dragon1996:
Ok what do i do in app
[Samsung Galaxy S21 Ultra] DaeDae<3:
Open the app - at the top select system from the options. If it says snapdragon, you're in the same boat as I, but if it says exynos then you should have the OEM unlock switch in your developer setting.
[Samsung Galaxy S21 Ultra] Dragon1996:
Im on exenos but no switch