Do bootloader locks expire? - Nokia 4.2 Questions & Answers

I have a Nokia 4.2 and found it pretty easy to unlock with fastboot oem unlock.
However, I've seen posts from previous years with people struggling to open the bootloader.
Is this because the bootloader lock from Nokia expires after a certain period of time?

garethppls said:
I have a Nokia 4.2 and found it pretty easy to unlock with fastboot oem unlock.
However, I've seen posts from previous years with people struggling to open the bootloader.
Is this because the bootloader lock from Nokia expires after a certain period of time?
Click to expand...
Click to collapse
There is nothing like that. Just connect your phone to ADB and Fastboot and boot into fastboot mode.
Then type fastboot oem unlock to unlock the boot loader

Geoperson8 said:
There is nothing like that. Just connect your phone to ADB and Fastboot and boot into fastboot mode.
Then type fastboot oem unlock to unlock the boot loader
Click to expand...
Click to collapse
Yes now but I see posts from a few years ago saying it was locked. Did HMD Global change this in a firmware update?
If so does this mean that newer phones will get unlocked after 2 years or when warranty ends?

garethppls said:
Yes now but I see posts from a few years ago saying it was locked. Did HMD Global change this in a firmware update?
If so does this mean that newer phones will get unlocked after 2 years or when warranty ends?
Click to expand...
Click to collapse
It was like that a few years ago. Now it’s not.

Related

oem unlocking non persistent on g6

Hello I have a new Moto G6. I have enabled developer options and I've enabled OEM unlocking. But it doesn't seem to stay enabled between reboots? I just bought this yesterday. I'm trying to unlock the bootloader, but I can't unless OEM unlocking stays enabled. Am I missing something? I know there's currently no root for the G6, but still I think I should be able to unlock it, or am I mistaken?
jloh1963 said:
Hello I have a new Moto G6. I have enabled developer options and I've enabled OEM unlocking. But it doesn't seem to stay enabled between reboots? I just bought this yesterday. I'm trying to unlock the bootloader, but I can't unless OEM unlocking stays enabled. Am I missing something? I know there's currently no root for the G6, but still I think I should be able to unlock it, or am I mistaken?
Click to expand...
Click to collapse
That just allows the bootloader to be unlocked. You still would need to actually unlock it following the unlocking guide thread in the guides section
dejello said:
That just allows the bootloader to be unlocked. You still would need to actually unlock it following the unlocking guide thread in the guides section
Click to expand...
Click to collapse
Yes I know this is not root, this is just unlocking the bootloader, yes I do have a key from motorola. But I can't do anything if OEM unlocking will not persist between reboots. I'm just trying to unlock the bootloader. And yes it is unlocked for sims.
jloh1963 said:
Yes I know this is not root, this is just unlocking the bootloader, yes I do have a key from motorola. But I can't do anything if OEM unlocking will not persist between reboots. I'm just trying to unlock the bootloader. And yes it is unlocked for sims.
Click to expand...
Click to collapse
I said nothing of root. Unless I am missing something from your original post, "Allow OEM unlocking" just allows the bootloader to be unlockable. After you tick it, reboot directly into fastboot mode (not back into android, that'll untick it again).
[GUIDE] Unlock Bootloader - This states after enabling OEM Unlock in settings (from within Android) to reboot into the bootloader (This guide says power off and then power back on while holding volume down, if you have debugging on you can just "adb reboot bootloader"). Rebooting back into Android with the bootloader still locked I believe does untick the OEM Unlock option.
ok thanks, I'll try again.
I have the XT 1925-6 US unlocked version. One of the first things I do with a new phone is to enable Developer Options and toggle OEM Unlock even though I may not Unlock the Bootloader right away.
The OEM Unlock toggle has stayed persistently on through numerous reboots with the Bootloader still locked.
Hmm.. Well I could have sworn I had seen what was described before, however it has been a while. I unlocked mine all in one go so I can't say. If it's supposed to stay on then I'd really be curious why it isn't for jloh
dejello said:
Hmm.. Well I could have sworn I had seen what was described before, however it has been a while. I unlocked mine all in one go so I can't say. If it's supposed to stay on then I'd really be curious why it isn't for jloh
Click to expand...
Click to collapse
I tried it again and it worked, thanks. I guess I rebooted android at first. Thank you.

Is it possible to re-lock bootloader after official unlock?

I'm doing some research before I commit to unlocking my bootloader, and I can't find anything definitive on whether or not it's possible to re-lock after unlocking with the official tool. I have experience unlocking and re-locking bootloaders, flashing custom recoveries/ROMs/kernels etc but only with Nexus and Samsung phones, so I just want to make sure I'm clear on how Nokia's setup differs (If at all). Would also be interested to find out if Nokia will still offer me OTA's with unlocked bootloader.
Thanks for any help, and feel free to move or close the thread if it matches another one that I've missed.
Bb
2WildFirE said:
I'm really sure you can relock bootloader. Why not?
And yes ota works fine with open bootloader if you are on stock
Click to expand...
Click to collapse
Awesome, cheers for the assist ?
2WildFirE said:
I'm really sure you can relock bootloader. Why not?
And yes ota works fine with open bootloader if you are on stock
Click to expand...
Click to collapse
Nokia says that relooking isn't possible. Is there anybody who tried the command 'fastboot oem relock'?
And why says this text please lock ? the bootloader, if it is not possible?
2WildFirE said:
And why says this text please lock ? the bootloader, if it is not possible?
Click to expand...
Click to collapse
Dude, crop out that serial number?
Go to download mode
Run adb:fastboot oem lock
Choose lock bootloader in your phone
namle98 said:
Go to download mode
Run adb:fastboot oem lock
Choose lock bootloader in your phone
Click to expand...
Click to collapse
confirmed, i did it today
Since I also unlocked critical, I ran: fastboot oem lock_critical and then fastboot oem lock
Phone will factory reset both times.
Has anyone tried the re-lock with a custom kernel/ROM?
dimitar10 said:
Has anyone tried the re-lock with a custom kernel/ROM?
Click to expand...
Click to collapse
No, and nobody should do it. It will brick your device.
The point of a locked bootloader is to prevent unofficial software from running, and the point of unlocking it is to make that possible. So relocking the bootloader with unofficial software installed will make the phone think that the software got corrupted and rightfully lock down the device.
THMSP said:
No, and nobody should do it. It will brick your device.
The point of a locked bootloader is to prevent unofficial software from running, and the point of unlocking it is to make that possible. So relocking the bootloader with unofficial software installed will make the phone think that the software got corrupted and rightfully lock down the device.
Click to expand...
Click to collapse
Basically anyone should be able to do it and it shouldn't brick your device, as per Google's bootloader recommendations. However, manufacturers decide to cripple bootloaders not to support it in the verified boot chain (where kernel verification can be explicitly made against a custom root of trust set after the device has left the factory i.e. set by the user, instead of the original root of trust). As far as I know, only Pixel devices implement this, and can be achieved by issuing the command:
Code:
fastboot flash avb_custom_key <key_blob>
I'm sure there are lots of advanced users/modders that can find this feature beneficial (if implemented by the device vendors).
dimitar10 said:
Basically anyone should be able to do it and it shouldn't brick your device, as per Google's bootloader recommendations. However, manufacturers decide to cripple bootloaders not to support it in the verified boot chain (where kernel verification can be explicitly made against a custom root of trust set after the device has left the factory i.e. set by the user, instead of the original root of trust). As far as I know, only Pixel devices implement this, and can be achieved by issuing the command:
Code:
fastboot flash avb_custom_key <key_blob>
I'm sure there are lots of advanced users/modders that can find this feature beneficial (if implemented by the device vendors).
Click to expand...
Click to collapse
I accidently locked the bootloader and without locking critical with custom recovery in system.
now it's saying data is corrupt and phone can't be trusted.
that unlock key url got expired and there is no way i can get that unlock key .
is there any other way to fix my phone??
Code:
fastboot flash avb_custom_key <key_blob>
how to use this code? any specific key_blob for nokia 8 or is it supported on this phone?
help me guys ;(
Edit:
After so many tries, I went to service centre and they fixed the phone in few mins :highfive::silly:
Crazy Tweaks said:
I accidently locked the bootloader and without locking critical with custom recovery in system.
now it's saying data is corrupt and phone can't be trusted.
that unlock key url got expired and there is no way i can get that unlock key .
is there any other way to fix my phone??
Code:
fastboot flash avb_custom_key <key_blob>
how to use this code? any specific key_blob for nokia 8 or is it supported on this phone?
help me guys ;(
Edit:
After so many tries, I went to service centre and they fixed the phone in few mins :highfive::silly:
Click to expand...
Click to collapse
I have the same problem right now. May i ask how they fixed it and what did you tell them ?
---------- Post added at 03:31 PM ---------- Previous post was at 03:27 PM ----------
CommieTurtle said:
I have the same problem right now. May i ask how they fixed it and what did you tell them ?
Click to expand...
Click to collapse
Did they fix it for free since bootloader is locked? I'm going to service centre in few hours
CommieTurtle said:
I accidently locked the bootloader and without locking critical with custom recovery in system.
now it's saying data is corrupt and phone can't be trusted.
that unlock key url got expired and there is no way i can get that unlock key .
is there any other way to fix my phone??
I have the same problem right now. May i ask how they fixed it and what did you tell them ?
---------- Post added at 03:31 PM ---------- Previous post was at 03:27 PM ----------
Did they fix it for free since bootloader is locked? I'm going to service centre in few hours
Click to expand...
Click to collapse
Well it wasn't in warranty xD so just asked me this and boom it was not free after that but well yeah it doesn't matter if it's locked or unlocked lol as long as they are getting paid, they'll do it hahahha
Crazy Tweaks said:
Well it wasn't in warranty xD so just asked me this and boom it was not free after that but well yeah it doesn't matter if it's locked or unlocked lol as long as they are getting paid, they'll do it hahahha
Click to expand...
Click to collapse
lol my device was under warranty so I got it fixed for free
I can assume that, in service centers, they are able to reflash the entire firmware including the (secondary) bootloader. They would probably boot the device into EDL mode, and flash it with stock firmware, with a properly signed Qualcomm EDL programmer, and use Qualcomm's QFIL tool to do this.
CommieTurtle said:
lol my device was under warranty so I got it fixed for free
Click to expand...
Click to collapse
Glad to hear that

Bootloader locked automatically

My redmi 4x (santoni) have twrp installed and I it is running on miui pro rom. But it's bootloader locking automatically after enabling usb debugging and switching off the phone. I can't boot into recovery and system, can only boot into fastboot mode, and I have to use mi flash tool to unlock bootloader again.
If someone face this problem, is there any solution of this. Please reply.
Thank you.
Bootloader can only be locked on all available official MIUI ROM, it can not be locked on modified MIUI versions.
There is no way that it'll get locked by itself by turning on USB Debugging and switching off phone. to lock unlocked bootloader one has to clean flash from Mi flash tools and needs to select lock bootloader before flashing.
I don't know how are you able to unlock bootloader on Mi flash tools because to unlock it official way one will need Mi unlock tool with permission from xiaomi(depending on region)
First make sure you are not on fake MIUI if so then flash official one through mi flash tools and then unlock it by mi unlock tools.
Once it is unlocked as i said earlier there is no way that it will get locked itself unless you choose to lock via mi flash tools.
about unlocking again
sorry for mistake, I have to use mi unlock tool again with my mi account signed in to unlock the bootloader again. And can't unlock by fastboot command "fastboot oem unlock".
yuyutsu said:
sorry for mistake, I have to use mi unlock tool again with my mi account signed in to unlock the bootloader again. And can't unlock by fastboot command "fastboot oem unlock".
Click to expand...
Click to collapse
I still do not get it what exact issue you have and what version of MIUI you are on.
You are saying you are on MIUI Pro and that confirms bootloader is unlocked and now you are saying
"I have to use mi unlock tool again with my mi account signed in to unlock the bootloader again. And can't unlock by fastboot command "fastboot oem unlock"
Click to expand...
Click to collapse
Please share exact and more details if you wish to resolve your issue and possibly some screenshot(s) of about phone and errors if any.
metelhammer said:
I still do not get it what exact issue you have and what version of MIUI you are on.
You are saying you are on MIUI Pro and that confirms bootloader is unlocked and now you are saying
Please share exact and more details if you wish to resolve your issue and possibly some screenshot(s) of about phone and errors if any.
Click to expand...
Click to collapse
I have a similar issue and came across this thread, usb debugging suddenly stopped working, it was working perfectly till yesterday. So when I went to developer options, I saw that the OEM unlocking option is clickable now ( it had remained grayed out ever since I unlocked the bootloader ). The Mi Unlock status option tells me that phone is locked. Toggling usb debugging is not making it work. When I restart the phone, I definitely see the unlocked padlock icon on the boot screen. So I am not sure what is going on. also, magisk is working fine.
In the screenshot you can see that it shows the device is locked. But from the status bar you can make out that exposed is working. I'll have to get another device though to get a picture of the padlock icon though.
Ontropy said:
I have a similar issue and came across this thread, usb debugging suddenly stopped working, it was working perfectly till yesterday. So when I went to developer options, I saw that the OEM unlocking option is clickable now ( it had remained grayed out ever since I unlocked the bootloader ). The Mi Unlock status option tells me that phone is locked. Toggling usb debugging is not making it work. When I restart the phone, I definitely see the unlocked padlock icon on the boot screen. So I am not sure what is going on. also, magisk is working fine.
In the screenshot you can see that it shows the device is locked. But from the status bar you can make out that exposed is working. I'll have to get another device though to get a picture of the padlock icon though.
Click to expand...
Click to collapse
Toggle OEM unlock enabled doesn´t mean that the device is unlocked, it only means that the bootloader can be unlocked, there is other item just lines after to check it; Mi Unlock status, enter to it and confirm it.
Also, you can confirm the bootloader status through fastboot with fastboot oem device-info
SubwayChamp said:
Toggle OEM unlock enabled doesn´t mean that the device is unlocked, it only means that the bootloader can be unlocked, there is other item just lines after to check it; Mi Unlock status, enter to it and confirm it.
Also, you can confirm the bootloader status through fastboot with fastboot oem device-info
Click to expand...
Click to collapse
Yea as I mentioned, the mi unlock status tells me that phone is locked.
Just check via fastboot, and it shows that phone is unlocked.
So do I just believe fastboot, or wait a month and then try to again unlock the bootloader via the mi unlock tool?
Ontropy said:
Yea as I mentioned, the mi unlock status tells me that phone is locked.
Just check via fastboot, and it shows that phone is unlocked.
So do I just believe fastboot, or wait a month and then try to again unlock the bootloader via the mi unlock tool?
Click to expand...
Click to collapse
You said "In the screenshot you can see that it shows the device is locked" but unfortunately the screenshot didn´t reveal that, I wonder, what exactly it says in the Mi Unlock status apart.
In older days, users share an aboot image, this served to unlock bootloader automatically without make the official process to unlock it, it could be that you flashed the official stock images, and it got re-locked. Anyway, we don´t know what happened with the fastboot command or with the Mi Unlock status section, so no respond to those points.
For the part you say to wait a certain time, definitely, no, the bootloader process is not monitored any more, for older devices, they can be unlocked instantly.
SubwayChamp said:
You said "In the screenshot you can see that it shows the device is locked" but unfortunately the screenshot didn´t reveal that, I wonder, what exactly it says in the Mi Unlock status apart.
In older days, users share an aboot image, this served to unlock bootloader automatically without make the official process to unlock it, it could be that you flashed the official stock images, and it got re-locked. Anyway, we don´t know what happened with the fastboot command or with the Mi Unlock status section, so no respond to those points.
For the part you say to wait a certain time, definitely, no, the bootloader process is not monitored any more, for older devices, they can be unlocked instantly.
Click to expand...
Click to collapse
My phone is about a month old, so it does tell me to wait. Contradictory screenshots attached below. After the boot unlock, I did flash flash a magisk edited boot.img and vbmeta.img to disable it. If I remember correctly though it was fine after that.

LG V405UA SPRINT no fastboot

Hello
After many search on the Web, i have no response to my problem.
My LG V40 sprint refuse to access to fastboot.
Please help me
Mine either, I asked a couple times but no answer. Good luck.:good:
There is no fastboot for Sprint to go to....unless your bootloader is unlocked...
Ainz_Ooal_Gown said:
There is no fastboot for Sprint to go to....unless your bootloader is unlocked...
Click to expand...
Click to collapse
There's your answer
Sent from my LM-V405 using Tapatalk
Thanks at all
Ainz_Ooal_Gown said:
There is no fastboot for Sprint to go to....unless your bootloader is unlocked...
Click to expand...
Click to collapse
Mine is.
Droidman61 said:
Mine is.
Click to expand...
Click to collapse
Then you should be getting the V35 bootloader/Fastboot.....
Ainz_Ooal_Gown said:
Then you should be getting the V35 bootloader/Fastboot.....
Click to expand...
Click to collapse
Nope cant get to it, and my Sprint connection wont work. Out of Service Area Mobile Network is unavailable. If you know a way to get to it that would be great.:good:
I also have a v40 with the bootloader unlocked (can enable USB debugging in Developer tools), but whenever I try to boot to fastboot mode (either from recovery or adb) it just boots back to normal Android OS.
Were you ever able to figure this out?
Ainz_Ooal_Gown said:
There is no fastboot for Sprint to go to....unless your bootloader is unlocked...
Click to expand...
Click to collapse
I have LG V40 Verizon and can i unlock bootloader?
robishavidze said:
I have LG V40 Verizon and can i unlock bootloader?
Click to expand...
Click to collapse
Yes, just not officially
Ainz_Ooal_Gown said:
Yes, just not officially
Click to expand...
Click to collapse
I unlocked it. It unlocked by Vlad
skippybosco said:
I also have a v40 with the bootloader unlocked (can enable USB debugging in Developer tools), but whenever I try to boot to fastboot mode (either from recovery or adb) it just boots back to normal Android OS.
Were you ever able to figure this out?
Click to expand...
Click to collapse
The process to unlock your bootloader is a bit more "involved" than just simply flipping a switch..
Talysdaddy said:
The process to unlock your bootloader is a bit more "involved" than just simply flipping a switch..
Click to expand...
Click to collapse
I've been on Android for 10 years, originally with the Galaxy S1 and many devices across multiple manufacturers.. The ability to "Enable OEM Unlock" at all has been a key indicator of whether the bootloder was unlocked. This was true for all of my devices, up to my LG v30 that I continue use for my daily driver.
The v40 was the first device that allowed me to enable OEM Unlock without the bootloader being unlocked, which is why I was confused.
Thanks for the reply.
I'm having the AT&T version (LM-V405UA), can I unlock its bootloader? I can't seem to be able to boot into fastboot mode though.. Weird.
---------- Post added at 09:50 PM ---------- Previous post was at 09:47 PM ----------
robishavidze said:
I unlocked it. It unlocked by Vlad
Click to expand...
Click to collapse
Hi, how can I contact him?
skippybosco said:
I've been on Android for 10 years, originally with the Galaxy S1 and many devices across multiple manufacturers.. The ability to "Enable OEM Unlock" at all has been a key indicator of whether the bootloder was unlocked. This was true for all of my devices, up to my LG v30 that I continue use for my daily driver.
The v40 was the first device that allowed me to enable OEM Unlock without the bootloader being unlocked, which is why I was confused.
Thanks for the reply.
Click to expand...
Click to collapse
Almost every Android I've had allowed me to enable OEM unlock....since for the most part it needs to be ticked on so that you can unlock it...
Ainz_Ooal_Gown said:
Almost every Android I've had allowed me to enable OEM unlock....since for the most part it needs to be ticked on so that you can unlock it...
Click to expand...
Click to collapse
Right. That was my point as well.
https://en.droidwiki.org/wiki/OEM-Unlock
Enabling OEM Unlock itself does not unlock the bootloader, but you can not unlock the bootloader unless it is unlocked.
This is the first device I've used that allowed me to enable OEM Unlock, but DID NOT allow me to unlock the bootloder. For other devices that had a locked bootloader, the first step of enabling OEM Unlock wasn't even an option, it was either missing altogether, or it was greyed out and unchangeable. That was my confusion.
skippybosco said:
Right. That was my point as well.
https://en.droidwiki.org/wiki/OEM-Unlock
Enabling OEM Unlock itself does not unlock the bootloader, but you can not unlock the bootloader unless it is unlocked.
This is the first device I've used that allowed me to enable OEM Unlock, but DID NOT allow me to unlock the bootloder. For other devices that had a locked bootloader, the first step of enabling OEM Unlock wasn't even an option, it was either missing altogether, or it was greyed out and unchangeable. That was my confusion.
Click to expand...
Click to collapse
With the OG LG Stylo the boost variant was the only one that couldn't be unlocked but OEM unlock was tickable we managed to root it but couldn't use TWRP that was available for the other 2 carrier variants....
Hola como lograste rootear tu lg v40 amigo?
robishavidze said:
I unlocked it. It unlocked by Vlad
Click to expand...
Click to collapse
Hola como lograste rootear tu lg v40 amigo?
You need to wipe your laf partition to get fastboot. Tread lightly, this phone is no fun to mod lol
lmick14000 said:
Hello
After many search on the Web, i have no response to my problem.
My LG V40 sprint refuse to access to fastboot.
Please help
Click to expand...
Click to collapse

Question Missing OEM Unlock on Cellular VZW S8+ (SM-X808U)

Hey guys,
I've searched the forum but nobody seems to have reported the issue I'm experiencing. The way the posts are worded, unlocking the Tab S8+ is a given. I know the US S22 has no OEM Unlocking officially supported. I've followed all the workarounds to get the option to appear to no avail.
My only theory is that VZW hasn't yet unlocked my S8+ (if it was ever locked to begin with, nevertheless I've owned it less than 60 days). Can anybody confirm if this model can be bootloader unlocked by conventional means either prior or after carrier unlock?
Hi! I'm going to try to find the other user's post who enlightened me in this section, but I might have trouble finding it.
Effectively, no U.S. carrier's version of previous and current Samsung Galaxy Tabs can have the bootloader unlocked - at least that's what I remember them telling me. You have to buy the Wi-Fi only version to be able to unlock the bootloader.
Now - SIM unlock, I know nothing about on the Tabs. Normally no matter what U.S. carrier, that I'm aware of, once you pay off your device (if financed), they'll SIM unlock the device, and although you can relate the two things (SIM and bootloader unlocking), they are completely separate and it's only certain U.S. phones (not Samsung phones or tablets) that getting SIM unlock enables you to also do OEM unlocking, and therefore be able to unlock the bootloader.
Verizon never allows the bootloader to be unlocked on any kind of device, no matter what, and all U.S. Samsung carrier devices - both phones and tablets, are never able to get their bootloader unlocked. I'm not including the rare exception that there's a hack to be able to get root - but most hacks circumvent the locked bootloader - they don't often actually allow the bootloader to be unlocked, and this sort of thing is rarer and rarer anymore.
Edit: I believe this is the post, by @googlephoneFKLenAsh.
Thank you for your thorough explanation. I was expecting the Tab to be the same situation as with the U.S. Galaxy phones, I just wasn't able to find confirmation of that.
I know Verizon is hostile to bootloader unlocking (case in point Pixel). So it was either gonna be my carrier and if not that my region.
Tablets do on rare occasion are exceptions (iirc ATT doesn't carrier lock tablets) so barring an explanation elsewhere I figured I'd post and have that question answered for myself and those concerned.
I don't understand the motivation behind it given that unlocking is already a process that can't be exploited by malware/spyware and carries a myriad of drawbacks/risks.
GlitterFartzz said:
... given that unlocking is already a process that can't be exploited by malware/spyware and carries a myriad of drawbacks/risks.
Click to expand...
Click to collapse
You're welcome!
I'm not sure I understand what you're saying here, or I'm not sure if you meant to say it differently.
An unlocked (or unlockable) bootloader can definitely be exploited without our awareness.
I agree that I don't understand the motivation - at least in contrast to AT&T and T-Mobile which apparently do allow bootloaders to be unlocked once their phones are paid for and SIM unlocked. I also don't know why or if AT&T and T-Mobile would not allow Samsung tablets to be bootloader-unlocked while allowing other brands.
Overall I think the motivation is the prevention of potentially more problems that users will have and also potentially brick their device and then they wind up with an unhappy customer because the carrier won't consider the device under warranty since it had been fiddled with in a way they're not willing to support (understandably).
Additionally, root malware would potentially be using their mobile network for nefarious purposes.
GlitterFartzz said:
Hey guys,
I've searched the forum but nobody seems to have reported the issue I'm experiencing. The way the posts are worded, unlocking the Tab S8+ is a given. I know the US S22 has no OEM Unlocking officially supported. I've followed all the workarounds to get the option to appear to no avail.
My only theory is that VZW hasn't yet unlocked my S8+ (if it was ever locked to begin with, nevertheless I've owned it less than 60 days). Can anybody confirm if this model can be bootloader unlocked by conventional means either prior or after carrier unlock?
Click to expand...
Click to collapse
I have the same s8+ 5G model and I'm unable to get to the unlock option from download mode. I have however managed to turn on the OEM unlock from android. It is very fiddly to get to the OEM unlock option, and it will disappear afterward. The method I used is to quickly go to the developer's options before the tablet fully started after a reboot. It will let you toggle the OEM unlock.
I'm waiting if someone found a way to get the bootloader unlock from download mode. Obviously I have tried all other methods ( e.g> cable + up+down volume )
It's actually not possible to unlock via download mode. Download mode is only used for Odin flashing and the like.
You have to get to the bootloader which I believe is power and vol up WITHOUT using the cable afaik.
If by some catastrophic reason you can't get into the bootloader after that, you can boot the device, enable USB debugging, plug into pc, and run adb reboot bootloader or adb reboot recovery.
killerzac said:
I have the same s8+ 5G model and I'm unable to get to the unlock option from download mode. I have however managed to turn on the OEM unlock from android. It is very fiddly to get to the OEM unlock option, and it will disappear afterward. The method I used is to quickly go to the developer's options before the tablet fully started after a reboot. It will let you toggle the OEM unlock.
I'm waiting if someone found a way to get the bootloader unlock from download mode. Obviously I have tried all other methods ( e.g> cable + up+down volume )
Click to expand...
Click to collapse
Have you been able to get the OEM unlocking switch to reappear after you've already toggled it?
If so, is it still on when it reappears? If it is then there's a high likelihood the device can then be unlocked.
GlitterFartzz said:
Have you been able to get the OEM unlocking switch to reappear after you've already toggled it?
If so, is it still on when it reappears? If it is then there's a high likelihood the device can then be unlocked.
Click to expand...
Click to collapse
yes, it remains as OEM unlocked. I even tried to see if this could be false positive by flipping OEM unlock back and forth. It has shown the setting is persistence, if you set OEM unlock it will stay unlock. If you set it back to OEM lock. It stays as OEM lock.
GlitterFartzz said:
It's actually not possible to unlock via download mode. Download mode is only used for Odin flashing and the like.
You have to get to the bootloader which I believe is power and vol up WITHOUT using the cable afaik.
If by some catastrophic reason you can't get into the bootloader after that, you can boot the device, enable USB debugging, plug into pc, and run adb reboot bootloader or adb reboot recovery.
Click to expand...
Click to collapse
nope, doesn't work. I tried ADB reboot bootloader or use the recovery to boot to bootloader, still no joy. I just can't get to the bootloader option which allows me to see the "Unlock bootloader options"
killerzac said:
nope, doesn't work. I tried ADB reboot bootloader or use the recovery to boot to bootloader, still no joy. I just can't get to the bootloader option which allows me to see the "Unlock bootloader options"
Click to expand...
Click to collapse
You are supposed to boot into bootloader mode and then use the fastboot tool to trigger the unlock.
Either fastboot flashing unlock or fastboot oem unlocking. Something like that.
GlitterFartzz said:
You are supposed to boot into bootloader mode and then use the fastboot tool to trigger the unlock.
Either fastboot flashing unlock or fastboot oem unlocking. Something like that.
Click to expand...
Click to collapse
yes, that is not working ( bootloader mode - doesn't let you choose ). Fastboot doesn't work with samsung, they deliberately change their code, try it yourself.
GlitterFartzz said:
You are supposed to boot into bootloader mode and then use the fastboot tool to trigger the unlock.
Either fastboot flashing unlock or fastboot oem unlocking. Something like that.
Click to expand...
Click to collapse
These are the necessary steps on this tablet to unlock the bootloader - it doesn't involve Fastboot from the Platform Tools. I am aware that on standard Android/AOSP that it does involve Fastboot since for my phones I choose Google Pixel devices.
skrowl said:
Step 1 - Prepare your Tablet (only necessary for first install on unrooted device)​
While Frija is downloading the firmware, prepare your device by doing the following:
Settings > About Tablet > Software Information > Click Build Number 7 times quickly
Developer Options (just below About Tablet on the left column)
Turn on USB Debugging
Turn on OEM unlocking
NOTE: If the OEM Unlocking option doesn't appear, connect the device to the internet, wait a few minutes, then try again
Power tablet completely off (Hold volume down + power button if you haven't changed the Bixby settings)
While holding volume up and volume down, plug the tablet into your PC via USB
Let go of volume keys as soon as the blue-green screen shows up
Press and hold volume up for 5 seconds, the screen will change to a confirmation prompt
Press volume up again to confirm, the tablet will reboot
Unplug your tablet from USB
Go through initial setup. Don't bother copying files or installing anything.
Skip signing in to your Google account and Samsung account. You won't be using them for this step.
Settings > About Tablet > Software Information > Click Build Number 7 times quickly
Developer Options (just below About Tablet on the left column)
Turn on USB Debugging
Reboot the tablet
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Click to collapse
roirraW edor ehT said:
These are the necessary steps on this tablet to unlock the bootloader - it doesn't involve Fastboot from the Platform Tools. I am aware that on standard Android/AOSP that it does involve Fastboot since for my phones I choose Google Pixel devices.
Click to expand...
Click to collapse
Ah I wasn't aware that some devices do not require fastboot to finalize unlock and instead immediately unlock when toggling OEM Unlocking.
Is it possible to confirm the unlock by getting the bootloader vars using fastboot however?
Alternately, what's the easiest way to confirm the bootloader is unlocked?
killerzac said:
yes, that is not working ( bootloader mode - doesn't let you choose ). Fastboot doesn't work with samsung, they deliberately change their code, try it yourself.
Click to expand...
Click to collapse
According to this post, you should have your bootloader unlocked now. Could you try following the instructions listed and report back?
Could you also explain in more detail how you can get the OEM unlocking option to appear?
I seem to be having no luck. You do own a US model, correct?
roirraW edor ehT said:
These are the necessary steps on this tablet to unlock the bootloader - it doesn't involve Fastboot from the Platform Tools. I am aware that on standard Android/AOSP that it does involve Fastboot since for my phones I choose Google Pixel devices.
Click to expand...
Click to collapse
GlitterFartzz said:
Ah I wasn't aware that some devices do not require fastboot to finalize unlock and instead immediately unlock when toggling OEM Unlocking.
Is it possible to confirm the unlock by getting the bootloader vars using fastboot however?
Alternately, what's the easiest way to confirm the bootloader is unlocked?
Click to expand...
Click to collapse
Actually, although the instructions don't make it clear without the context of seeing what's on the screen, steps 5 through 7 are what unlock the bootloader. OEM Unlocking still only (normally) enables unlocking the bootloader:
5. While holding volume up and volume down, plug the tablet into your PC via USB
Let go of volume keys as soon as the blue-green screen shows up
6. Press and hold volume up for 5 seconds, the screen will change to a confirmation prompt
7. Press volume up again to confirm, the tablet will reboot
Click to expand...
Click to collapse
Also, just as on the Google Pixel and many or all other devices, the easiest way to see that your bootloader is unlocked is the (IMHO) big honking stupid advertisement when you reboot or turn on your device that the bootloader is unlocked and the (paraphrasing) "hey thieves, if you just stole this device, you're in luck because you can hack into someone's account easier since this device's bootloader is unlocked" that stays on the screen seemingly forever.
I know that if they're actually technically savvy they'd be able to find that out anyway, but all this forced pre-boot screen does is punish those who unlock their bootloader. End Rant.
Ah I see what you mean, so It's been stated that US devices either resist BL unlocks e entirely or require alternative solutions.
That being said, has there been reports of UI bugs causing the option to appear on USA models under certain circumstances?
roirraW edor ehT said:
Actually, although the instructions don't make it clear without the context of seeing what's on the screen, steps 5 through 7 are what unlock the bootloader. OEM Unlocking still only (normally) enables unlocking the bootloader:
Also, just as on the Google Pixel and many or all other devices, the easiest way to see that your bootloader is unlocked is the (IMHO) big honking stupid advertisement when you reboot or turn on your device that the bootloader is unlocked and the (paraphrasing) "hey thieves, if you just stole this device, you're in luck because you can hack into someone's account easier since this device's bootloader is unlocked" that stays on the screen seemingly forever.
I know that if they're actually technically savvy they'd be able to find that out anyway, but all this forced pre-boot screen does is punish those who unlock their bootloader. End Rant.
Click to expand...
Click to collapse
GlitterFartzz said:
That being said, has there been reports of UI bugs causing the option to appear on USA models under certain circumstances?
Click to expand...
Click to collapse
No. I've read every post in this section starting from when I pre-ordered mine (February?), and the only post I've seen about being able to enable OEM Unlocking was from @killerzac.
Too bad that doesn't easily lead to actually being able to unlock, even if the OEM Unlocking aspect was widely reproducible.
killerzac said:
yes, that is not working ( bootloader mode - doesn't let you choose ). Fastboot doesn't work with samsung, they deliberately change their code, try it yourself.
Click to expand...
Click to collapse
Have you found a solution?
I'm in such a weird place. I'm in the UK my first Tab S8 Ultra unlocked originally but after relocking the bootloader I can't get the OEM Unlock to reappear. I needed an unlocked tablet so I bought another one and this one has never had the OEM Unlock option. Waited many sets of 7 days trying different Samsung accounts and Google accounts. I do notice like you that if you get to dev options quickly after boot OEM Unlock is there but it definitely hasn't loaded properly at this point and changing it does nothing. Tablet never gives the bootloader unlock option when you go through the process.
The only thing ive noticed is on both devices the KG Status is Active (Viewed in Download Mode). My S22 which has the OEM Unlock option shows it as inactive. Samsung have told me that I can send the tablet to them and they will look at it but I can't be without it at the moment. Don't know if both my tablets are wrongly reporting that they are in finance and MDM is locking it potentially following my Samsung account to the new tablet I bought.
Really annoyed with Samsung now spent hours on web chats with them where they keep making you reset the tablet and won't escalte it.
Even more annoying they won't look at my first tablet because it did unlock initially so the warrenty is void now that it won't unlock they have said they will replace the mainboard for £800.
@Jono0907 That really sucks! I'm sorry to hear about all the trouble. I "swear" - customer service these days. Someday, companies will just stop even having the (mostly) nearly useless customer service that they do now, and they just won't have any at all.
Jono0907 said:
Have you found a solution?
I'm in such a weird place. I'm in the UK my first Tab S8 Ultra unlocked originally but after relocking the bootloader I can't get the OEM Unlock to reappear. I needed an unlocked tablet so I bought another one and this one has never had the OEM Unlock option. Waited many sets of 7 days trying different Samsung accounts and Google accounts. I do notice like you that if you get to dev options quickly after boot OEM Unlock is there but it definitely hasn't loaded properly at this point and changing it does nothing. Tablet never gives the bootloader unlock option when you go through the process.
The only thing ive noticed is on both devices the KG Status is Active (Viewed in Download Mode). My S22 which has the OEM Unlock option shows it as inactive. Samsung have told me that I can send the tablet to them and they will look at it but I can't be without it at the moment. Don't know if both my tablets are wrongly reporting that they are in finance and MDM is locking it potentially following my Samsung account to the new tablet I bought.
Really annoyed with Samsung now spent hours on web chats with them where they keep making you reset the tablet and won't escalte it.
Even more annoying they won't look at my first tablet because it did unlock initially so the warrenty is void now that it won't unlock they have said they will replace the mainboard for £800.
Click to expand...
Click to collapse
Hi Jono,
I haven't look at it since and I'm pretty sure your finding is very much same as mine, Quote "Table never gives the bootloader unlock option". I gave my s8+ to my 5 years old son as his toy now. Piece of garbage without ROOTing for me. I'm reverting back to using my tabS6. You might hapend to see me on the northen line with my TabS6, very rare scene.

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