Galaxy A215U1 OEM Unlock Android 10.0 - Samsung Galaxy A21s Questions & Answers

I have been recently trying to root my galaxy a21 and I have discovered that the apps I try to root it with won't work because of the missing OEM unlock option. I have seen the guides about setting back the date and the whole Prenormal RMM thing, but I have had the phone and a samsung account for about 6 months at this point. I also read something that said that samsung removed the option on non-international phones. I was wondering if anyone here knows how I can get the OEM unlock option to appear, thanks! (also it's one core UI ver 2.1, idk if that helps)

Damn, there is literally no love for this Galaxy A21 phone. lol. I am in the same boat as you.

Related

OEM Unlock not appearing after 7 days -- SM-G965F/DS (Exynos)

I have an unlocked SM-G965F/DS (Exynos) that has not shown the OEM unlock option yet. Tried:
Installing active SIM
Logging in to Google and Samsung accounts, then
Leaving the phone online for 170 hours (uptime reached ~175 hours)
I see a few other threads on the SM-G965F/DS, also indicating no OEM unlock appeared. Has anyone actually gotten the SM-G965F/DS to show an OEM unlock option?
Firmware and hardware versions:
Hardware: SM-G965FZBDXSP
CSC code: XSP
Botloader: G965FXXU1BRE6
CSC: G965FOXM1BRE6
Android Build Number: R16NW.G965FXXU1BRE6
EDIT:
Bootloader shows:
Model: G965F
RMM State: Prenormal
FRP Lock: ON
OEM Lock: ON
Is only the single-SIM 965F unlockable? Is there a recommended dual-SIM model in case I end up just sending this one back?
Appreciate any help you guys can provide!
whitepines said:
Is only the single-SIM 965F unlockable? Is there a recommended dual-SIM model in case I end up just sending this one back?
Appreciate any help you guys can provide!
Click to expand...
Click to collapse
Mines dual sim, had oem unlock after the 7 day wait.
sent from my Exynos S9 plus, Pixel 2 XL or Note FE
force70 said:
Mines dual sim, had oem unlock after the 7 day wait.
sent from my Exynos S9 plus, Pixel 2 XL or Note FE
Click to expand...
Click to collapse
Great, thank you for the data point. Do you happen to know the CSC and stock firmware version you had installed when the OEM unlock appeared? If I don't see the option after another 7 days I intend to ODIN over a known good CSC / firmware version.
whitepines said:
Great, thank you for the data point. Do you happen to know the CSC and stock firmware version you had installed when the OEM unlock appeared? If I don't see the option after another 7 days I intend to ODIN over a known good CSC / firmware version.
Click to expand...
Click to collapse
My CSC is EGY (egypt) but no idea what the original firmware was when i got it
Mine is a S9+ dual sim and has OEM unlock
Vadwiser said:
Mine is a S9+ dual sim and has OEM unlock
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Click to collapse
do i need to have an active sim card in my phone to oem unlock? feeling like i wasted the last 3 days by not having one inserted. thanks in advance
this.guy.lol said:
do i need to have an active sim card in my phone to oem unlock? feeling like i wasted the last 3 days by not having one inserted. thanks in advance
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Click to collapse
Lol, why wouldnt you have one inserted?
sent from my Exynos S9 plus, Pixel 2 XL or Note FE
force70 said:
Lol, why wouldnt you have one inserted?
sent from my Exynos S9 plus, Pixel 2 XL or Note FE
Click to expand...
Click to collapse
because i have a oneplus 6 i am using. and because i require root. i dont use devices that are not rooted.
Did finally get it working. My device originally came with RMM prenormal, FRP lock off, OEM lock on. Setting up the phone normally and inserting a SIM, then waiting 7 days, did NOT work. I suspect the phone was in an abnormal state due to a partial setup by the prior owner / reseller.
What did the trick for me was to force reset the phone (lose all data) via the settings menu, have a SIM inserted, go through the full setup process (Google and Samsung accounts), then leave the phone on for 7 days. The reset caused RMM prenormal, FRP lock on, OEM lock on. After 168 hours the OEM unlock option appeared in the developer settings menu.
A little guidance here. I've only dealt with Google Nexus devices and the OnePlus One, which were ridiculously easy to unlock and put on a custom ROM. I'm currently running (yes, still) a Nexus 6P because there hasn't been a phone that really interests me. I do like the S9+, and can get a good price on a BNIB SM-G965F/DS. I just want to run AOSP on it, no frills, no thrills, just vanilla. That's how I roll. So, I'll need to unlock the bootloader, install TWRP, and load up a new ROM.
With that said, all that I've read, I'm a little confused. I use t-mobile, so will I need to put in the t-mobile sim for 7 days to get OEM unlock, or will I need this done in an EU country (it is an EU version) due to the region locking Samsung has been doing since 2013? There just seems to be a lot of competing and incomplete information all over the damned place.
And don't tell me to search, please. I've been around on this forum long enough to know how to search, and long enough to know that search doesn't always yield the results you're looking for. So, if you have a link to a more descriptive explanation of what to do/expect, I'd be grateful.
Thanks.
EDIT: Found this: https://www.xda-developers.com/fix-...y-s9-samsung-galaxy-s8-samsung-galaxy-note-8/
Maybe that would work... but still don't understand if I need it activated on an EU SIM first.. Now I remember why I've avoided Samsung devices...
stewa2jm said:
A little guidance here. I've only dealt with Google Nexus devices and the OnePlus One, which were ridiculously easy to unlock and put on a custom ROM. I'm currently running (yes, still) a Nexus 6P because there hasn't been a phone that really interests me. I do like the S9+, and can get a good price on a BNIB SM-G965F/DS. I just want to run AOSP on it, no frills, no thrills, just vanilla. That's how I roll. So, I'll need to unlock the bootloader, install TWRP, and load up a new ROM.
With that said, all that I've read, I'm a little confused. I use t-mobile, so will I need to put in the t-mobile sim for 7 days to get OEM unlock, or will I need this done in an EU country (it is an EU version) due to the region locking Samsung has been doing since 2013? There just seems to be a lot of competing and incomplete information all over the damned place.
And don't tell me to search, please. I've been around on this forum long enough to know how to search, and long enough to know that search doesn't always yield the results you're looking for. So, if you have a link to a more descriptive explanation of what to do/expect, I'd be grateful.
Thanks.
EDIT: Found this: https://www.xda-developers.com/fix-...y-s9-samsung-galaxy-s8-samsung-galaxy-note-8/
Maybe that would work... but still don't understand if I need it activated on an EU SIM first.. Now I remember why I've avoided Samsung devices...
Click to expand...
Click to collapse
Been a month and no oem unlock for me... Tried all the time trick settings and factory reset plus more time changing... I am not using a sin on this phone because I have a work phone... Why so much bs just for oem unlock?
IparryU said:
Been a month and no oem unlock for me... Tried all the time trick settings and factory reset plus more time changing... I am not using a sin on this phone because I have a work phone... Why so much bs just for oem unlock?
Click to expand...
Click to collapse
Oem unlock isnt gonna do anything for the device. Its kind of pointless to do for now.
HELP! OEM Unlock came up after 7 days. I turned it on, and it said that doing so will erase data... yadda yadda, and then it restarted, wiped, and then rebooted. ... No OEM Unlock in the menu anymore and back to RMM STATE: Prenormal.
WTF??
stewa2jm said:
HELP! OEM Unlock came up after 7 days. I turned it on, and it said that doing so will erase data... yadda yadda, and then it restarted, wiped, and then rebooted. ... No OEM Unlock in the menu anymore and back to RMM STATE: Prenormal.
WTF??
Click to expand...
Click to collapse
Multiple guides to either TWRP/root or ROM s9+ involve manually restarting the phone BEFORE samsung auto restarts your phone.
In other words, don't let the force restart from samsung go through, and manually restart it the moment you press OK to factory wipe and restart
EDIT: also make sure you have signed out of google before going into DL mode to TWRP phone, as this does the "FRP lock" from what I personally understand and Odin won't let you TWRP with FRP lock on. This was my 2nd mistake (and second 7-day lockout). First mistake was what you did, by letting samsung beat you at restarting phone.
jujubeans said:
Multiple guides to either TWRP/root or ROM s9+ involve manually restarting the phone BEFORE samsung auto restarts your phone.
In other words, don't let the force restart from samsung go through, and manually restart it the moment you press OK to factory wipe and restart
EDIT: also make sure you have signed out of google before going into DL mode to TWRP phone, as this does the "FRP lock" from what I personally understand and Odin won't let you TWRP with FRP lock on. This was my 2nd mistake (and second 7-day lockout). First mistake was what you did, by letting samsung beat you at restarting phone.
Click to expand...
Click to collapse
Thanks. I got through it all a while back now. You have to be lightning quick. So dumb. This will most likely be my last Samsung device. There are other options that are much less hassle to do this work on.

Don't Waste Your Time Trying to Root Galaxy S9 G960F Andriod Pie(9)

I've been rooting and modding android phones in the past 3 years. Recently, I got a used Galaxy S9 (model G960F) and tried to root it. After literally a whole week of researching and numerous trials and testings, I came to the conclusion that the Galaxy S9 G960F is not root-able. So, to save you some time and energy, don't try to root it. It will NOT work. Unless someone comes up with a bypass to the "RMM State: Prenormal" while the "OEM Unlock" is off, and "KG: Checking."
This is what happens:
After turning ON the "OEM Unlock," the RMM State will remain PRENORMAL while the KG is CHECKING. KG State is good, but it's almost impossible to bypass the RMM State unless you already successfully flashed TWRP. But to successfully flash TWRP, you will need to unlock RMM State first.
You're welcome!

Stuck trying to root Galaxy A7 2016 (A710F)

I write this post in the last hope of getting help from the community. I recently inherited an old Galaxy A7 2016 (A710F) android 6 version with A700FXXU2BPK1 base band version. The phone belonged to my mom, so I didn't think about it and did a system reset and deleted everything. Now I have a "100%" clean phone. The fact is that I would like to change the ROM with a lineage os. I can't proceed because when I unlock the developer options and activate the USB debugging according to the official guide, the "OEM unlock" item does not appear. This item is essential to flash the bootloader and have root permissions. I also tried to enter both my gmail and samsung account, but this option does not appear. I checked and in my galaxy S9 plus it is present. Do you have any suggestions on how to proceed, bring up the entry or root? A link with a guide is also fine. I have made many attempts and no guide seems to work, without that checkbox I do not proceed. I also tried the "trick" of postponing the date and time but it didn't work. then I can't install TWRP and proceed. As a last attempt I tried with odin but obviously I can't flash the bootloader because that box is not active. I trust in you.
Cheers

Galaxy A10 oem unlock does not appear.

Hello, guys, I have a galaxy A10 in which it does not appear oem unlock, I've tried all the tutorials on the internet but none of them work, I have this device since the launch in Brazil, at the time it was android 9, and this oem unlock option always appeared, but as at the time it didn't have a custom rom yet (or I haven't found any) I left it disabled, now in 2021 I saw several custom rom for my device, but after upgrading to android 10, I was no longer able to have the option of oem unlock, I will pass the current configuration of my device.
Galaxy A10 (105M/DS)
Android 10
security patch March 1, 2021
build number A105MUBS6BUC2
is there any way to still be able to root and unlock the bootloader?
I don't care if I have to install rom from other countries, I just want to be able to root and install custom roms.
About the tutorials I saw on the internet, they were just the most common ones like delaying the date and looking for an update, I saw a tutorial in which the person left and entered the developer settings until it appears, I already did a hard reset and tried to make oem unlock appear with all the tutorials.
lTheuSl said:
Hello, guys, I have a galaxy A10 in which it does not appear oem unlock, I've tried all the tutorials on the internet but none of them work, I have this device since the launch in Brazil, at the time it was android 9, and this oem unlock option always appeared, but as at the time it didn't have a custom rom yet (or I haven't found any) I left it disabled, now in 2021 I saw several custom rom for my device, but after upgrading to android 10, I was no longer able to have the option of oem unlock, I will pass the current configuration of my device.
Galaxy A10 (105M/DS)
Android 10
security patch March 1, 2021
build number A105MUBS6BUC2
is there any way to still be able to root and unlock the bootloader?
I don't care if I have to install rom from other countries, I just want to be able to root and install custom roms.
About the tutorials I saw on the internet, they were just the most common ones like delaying the date and looking for an update, I saw a tutorial in which the person left and entered the developer settings until it appears, I already did a hard reset and tried to make oem unlock appear with all the tutorials.
Click to expand...
Click to collapse
I forgot to mention, when I go into download mode, instead of being in the prenormal, mine is in normal.
lTheuSl said:
I forgot to mention, when I go into download mode, instead of being in the prenormal, mine is in normal.
Click to expand...
Click to collapse
Same issue, A107m (a10s) mtk doesn't show the oem unlock after a11 update and i can't find a solution (it is on kg state normal)

So can I root this thing or not? (G991U1 w/XAA)

I bought an unlocked S21 from Samsung directly; it currently has "1OYM2AUC8" firmware on it with XAA CSC. There is no "OEM unlock" option anywhere in the developer options, and my KG status says "Completed" in download mode.
I was gonna install Magisk and go for it—I'm computer-savvy, but haven't rooted a phone since 2014, lol. However, looking around I found several posts saying that there is no working root method for this phone in particular, unless I'm misunderstanding something horribly? Can someone set me straight here?
auxy said:
I bought an unlocked S21 from Samsung directly; it currently has "1OYM2AUC8" firmware on it with XAA CSC. There is no "OEM unlock" option anywhere in the developer options, and my KG status says "Completed" in download mode.
I was gonna install Magisk and go for it—I'm computer-savvy, but haven't rooted a phone since 2014, lol. However, looking around I found several posts saying that there is no working root method for this phone in particular, unless I'm misunderstanding something horribly? Can someone set me straight here?
Click to expand...
Click to collapse
I've also been looking around for a solid root method for my device (G991U) and the only thing I've been able to find is a paid "token," which to my understanding is not a bootloader unlock and will not work on any post March security updated phone (i.e. my phone). I also am missing the OEM unlock option as well. With there being no guides and little to no activity on the forums I'm stuck on how to root this thing too. I've seen a couple of YouTube guides but they're for the exynos model (which also seems to have the OEM unlock option). Is there anyone working on an exploit or a way to unlock the phone bootloader? Is this token based from Samsung? It's been a while since I've rooted a Samsung phone and things look so different now. Could anyone she's some light on the subject for me and the guy I quoted? Tia!
Please let me know if you come back and find anything @pmacevad. I would really like to get this thing rooted.
US Samsung S series hasn't been bootloader unlockable since the S6 or S7, and root right now requires a $150 paid bootloader unlock. That's it. If you were looking for something easier, I suggest reassessing your need for root, or looking for another device.

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