unlock bootloader - OnePlus 8 Pro Questions & Answers

I want to root my oneplus 8 pro IN2020. but when i try to unlock bootloader with
Code:
fastboot oem unlock
I have following error:
FAILED (remote: 'Flashing Unlock is not allowed)​Phone was have been installed and updated to latest version. No sim yet.
I'm using windows 10 and latest platform sdk.
Do you have any clues ?
I got the phone on banggood with oneplus sticker with MEID and CM sticker...
if it is a branded phone how to get bin file or unlock code. The unlock_token page is not available in my region...
on fastboot screen i do not have any bootloader version nor baseband version...

Did you connect your phone to the internet and enable Bootloader Unlocking in Developer Settings?

Good catch !
Many thanks....

No problem, seems to be a common mistake around here

Related

Meizu m3 note how to unlock bootloader?

Same as the title
You see Legal Information on Setting? It say the bootloader is already open
Need to unlock BL friends, please send my E-mail, I will reply to your message in the E-mail.
My E-mail: [email protected]
1944 said:
You see Legal Information on Setting? It say the bootloader is already open
Click to expand...
Click to collapse
Open does not mean unlocked. Open means you have root access. Unlock means you can access the recovery partition and flash anything you want with a custom recovery.
https://forum.xda-developers.com/meizu-mx/development/recovery-twrp-bl-unlock-m3-note-t3684052 See the tutorial
With G version (6.3.0.0G), lk does not have fastboot unlock cmd. I had disassembled 6.1.3.3G lk to check and confirmed. Instead, A version does have it because of nougut port (Ie, 6.3.0.2A fw).
I knew it because tried today. I rooted and run global.sh then install A version fw on my G version phone. The drawback is fastboot USB is no longer working. So winxp PC USB connections to m3note fail. Lucky the phone still working.
So if somebody told you G version can unlock bootloader, then you have to pay attention. I assumed you less likely got the A version phone but a G version instead. If you are lucky with A version, you can have a try. FYI the above disassembled A version of lk does have below cmd:
oem p2u
oem reboot-recovery
oem unlock
oem lock
oem key
oem lks
flashing unlock
flashing lock
flashing get_unlock_ability
Many more....
Regards.

Problems with unlock/relock bootloader and TWRP flashing

Hi, I have Asia-Pacific version of the Huawei Mediapad M3 (BTV-W09C209B005). I'm trying to flash TWRP to gain root access, but I'm encountering problems in the preliminary stage. I've searched for similar problems in the forum, but couldn't find a solution that works for me.
So here are the steps I've done:
1. I received the official bootloader code from Huawei.
2. I used ADB and Fastboot to unlock the bootloader, but I noticed something peculiar: the screen says
Phone UNLOCKED
FRP UNLOCKED
I am the first owner of the tablet, so I was surprised to see that it was already unlocked. In any case, I tried the fastboot oem unlock command, and it returned this error:
FAILED (remote: password wrong)
3. I tried to proceed to TWRP flash on the assumption that the phone was already unlocked. But I get this error:
sending 'recovery' (23794 KB)....
OKAY [ 0.740s]
writing 'recovery'...
FAILED (remote: Command not allowed)
finished, total time: 0.740s
4. I tried relocking the bootloader, as per several XDA threads, before unlocking again. But I once again encounter an error:
FAILED (remote: stat not match)
I already contacted Huawei to make sure that the unlock code they sent me was correct, but I doubt that it'd be wrong because they probably just paste it after generating it in the system.
Any ideas how to proceed?
Interesting, first off if you want to check and see if you phone is BL is unlocked go to Settings, Developer Options and see if your OEM unlocking is grayed or doesn't move..if it doesn't move or grayed out then it's unlocked.. if it moves the it not unlocked.. check that your fastboot /adb are set up correctly. Though the easiest way to this ( unlocking the BL and flashng TWRP) would be to get Huawei Multi-Tool v8 by Team MT and use it,, ( grab the one in the Honor 8, as I know it does work) and make sure you ave the correct TWRP for your tablet..
lilbrat said:
Interesting, first off if you want to check and see if you phone is BL is unlocked go to Settings, Developer Options and see if your OEM unlocking is grayed or doesn't move..if it doesn't move or grayed out then it's unlocked.. if it moves the it not unlocked.. check that your fastboot /adb are set up correctly. Though the easiest way to this ( unlocking the BL and flashng TWRP) would be to get Huawei Multi-Tool v8 by Team MT and use it,, ( grab the one in the Honor 8, as I know it does work) and make sure you ave the correct TWRP for your tablet..
Click to expand...
Click to collapse
Thanks for pointing me the Huawei multi-tool. So I tried that, and as suspected, the device is still locked. I am able to toggle the OEM unlocking and the tool says so through the lock status (oem lock-state info LOCKED). I proceeded unlocking with the tool, but I received the same error: FAILED (remote: password wrong)
The unlock code doesn't seem to be the problem because the tool displayed the corresponding serial number and it was a match. So there's something preventing me from unlocking the bootloader--it's probably the same reason why the fastboot says "PHONE Unlocked" even though it actually isn't. Again, I can't do the relock trick because the device wouldn't accept the Huwei unlock code.
Thoughts?
Hmm, why do some of these seem to be so picky when it comes to unlocking.. The multi too will copy what ever code you but in, sorry for the questions just trying to help narrow it down.. in the developer section there are 3 things that need to be ticked,, OEM unlocking, USB debugging and and allow ADB debugging in charge only mode.. Maybe you software got out of wack.. read here ( https://forum.xda-developers.com/mediapad-m3/help/bricked-mediapad-m3-t3746893) as it may help.. Not sure if HiSuite can restore it.
OEM unlocking and USB debugging are "working" in the sense that I can send commands from the PC via USB. It's just that I can't properly unlock the phone. I updated the drivers to see if that's the problem, but I still encounter the same error. I basically couldn't move forward with the link you sent because the first step was to unlock the device and I couldn't get past that. When I try to unlock the error is still 'FAILED (remote: password wrong)'.
I've seen some threads from other Huawei devices that suggest rolling back the firmware, but this is the first time I'm trying to root this device. And it's still on Marshmallow, which is the version that came with the first release of the Mediapad M3, so basically there's nothing to roll back to.
Why not upgrade to 7 as that is where most of the newer threads are written for plus it will redo your boot loader... giving you a clean slate to work with..and that might be your issue..
I can't update to 7 because Huawei stopped providing updates for my region. I failed to mention that the reason why I'm trying to unlock the device is to change the region and upgrade to 7.
May I ask where you are?
From Southeast Asia, but the tablet was imported from China. I planned to convert it to the European version so I can at least upgrade to Nougat. I'm still stuck though.
So Huawei sent me a new unlock key and it works! Problem solved!
cescpistol said:
From Southeast Asia, but the tablet was imported from China. I planned to convert it to the European version so I can at least upgrade to Nougat. I'm still stuck though.
Click to expand...
Click to collapse
Imy model also seas... Has updated to nougat without changging to us.

I Cant Unlock Bootloader

hello
I received the bootloader unlock code from emui huawei official site,
but I cant unlock my device with received code.
I receive wrong code error on fastboot, when I entered front command => fastboot oem unlock (code)
all information entered on Huawei site is correct.
hisuite, fastboot and adb installed.
not more methods for unlocking my phone?
pls help me
-------------------------- added
I checked Huawei web site,
now Huawei not supported send unlock code!
did you turn on the OEM unlock in dev setings?

unable to unlock bootloader

Device basic data verification failed.
this device could not be unlocked.
please solve for me.
running android 6.0.1
miui 10.2.2.0
redmi 3s
land
oem unlocking and usb debugging enabled
mi unlock status locked
could not add eeror code 86012
in my pc unlocker
99% stuck and says device basic ...
I would advise you to reload the stock ROM again using MiFlash and then try to unlock the bootloader again
Seems like the Mi unlock tool cannot get your device's info so yeah try to flash the stock MIUI again and then try to unlock the bootloader again mate.

Bootloader re-locked and now "System Destroyed" with no solutions

Hi all, I had official MIUI Global 11 on Android 10 on a phone with unlocked bootloader and a recovery. I wanted to re-lock the bootloader, so I went to fastboot and I gave the command to lock it.
Obviously (but I didn't even imagine it) the devide DID lock, but now it doesn't start any longer. ""System destroyed" is the message.
What I want to get is one of these two results: having a working phone OR having everything erased.
What I have already tried is:
- installing a firmware via fastboot: failed because the bootloader is locked
- flashing single .img via fastboot: failed because the bootloader is locked
- erase partitions: failed because the bootloader is locked
- unlock again the phone via fastboot: failed
- unlock again the phone via Mi Unlock: failed because missing authorization in developer options
Let's add the fact that I don't have windows, but Mac, that reduces the available options.
ANY SUGGESTIONS?
You can use Platform tools in windows.As far as i know platform tools can be used both locked and unlocked bootloader.You can search on YouTube how to flash mi phones through platform tools.
francanna said:
Hi all, I had official MIUI Global 11 on Android 10 on a phone with unlocked bootloader and a recovery. I wanted to re-lock the bootloader, so I went to fastboot and I gave the command to lock it.
Obviously (but I didn't even imagine it) the devide DID lock, but now it doesn't start any longer. ""System destroyed" is the message.
What I want to get is one of these two results: having a working phone OR having everything erased.
What I have already tried is:
- installing a firmware via fastboot: failed because the bootloader is locked
- flashing single .img via fastboot: failed because the bootloader is locked
- erase partitions: failed because the bootloader is locked
- unlock again the phone via fastboot: failed
- unlock again the phone via Mi Unlock: failed because missing authorization in developer options
Let's add the fact that I don't have windows, but Mac, that reduces the available options.
ANY SUGGESTIONS?
Click to expand...
Click to collapse
I think that the only way to flash it successfully again is to use QPST ,but you need to open the phone remove battery and get 9008 port , check in YouTube.

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