Relock bootloader accidently after TWRP recovery flashed. How to unlock again? - OnePlus 2 Q&A, Help & Troubleshooting

Hi there,
I locked the bootloader by accident after I already installed the TWRP recovery. Now I wonder myself how to unlock it again, because again in fastboot mode it does not work. I can not find any guide therefore.
Thanks in advance!

Related

Can i unlock bootloader without rooting?

I am trying to change my Note 3 (SM-N900K) firmware but first when i try to flash the recovery after the flashing the recovery did not change what should i do?
Thank you
You must unlock the bootloader first!
are there any other application or an easier way to unlock bootloader without rooting?
I am not familiar with the n900k but using an app to unlock the bootloader if the bootloader is not locked will probably brick the phone.
Are you booting right into the custom recovery as soon as you flash it? If you flash recovery and just reboot to the rom, the stock recovery will overwrite the custom recovery.

Bootloader unlock? TWRP flash without Rooted phone on 6.0??

Are there any news about unlocking bootloader ...are there any way to flash TWRP without rooted phone?...i tried ADB but itsn ot working...

Anyway to unlock oem from bootloader or TWRP?

I was trying to flash the stock image and i guess i messed up somewhere because after i did that i locked the bootloder and not it is not booting past the google screen. i want to reflash all images but i cant cause the bootloader is locked. so is there anyway to unlock the oem in bootloader or recovery mode TWRP? i can access terminal in TWRP so any command that can help me?
TheTickReborn said:
I was trying to flash the stock image and i guess i messed up somewhere because after i did that i locked the bootloder and not it is not booting past the google screen. i want to reflash all images but i cant cause the bootloader is locked. so is there anyway to unlock the oem in bootloader or recovery mode TWRP? i can access terminal in TWRP so any command that can help me?
Click to expand...
Click to collapse
Maybe try and sideloading the it's through twrp. I can't remember if an unlocked bootloader is needed though. Also, you could maybe try flashing a custom ROM to see if you can boot into it.

A2017G How to relock bootloader on Nougat B10

I came back from LOS 16.0. Flashed A2017G_B10_NOUGAT_FULL_EDL in EDL but there's a warning that my bootloader is locked. I wanted to relock it but the warning prevents me from entering bootloader or fastboot (or maybe they are not even present....). Next I flashed A2017U_FASTBOOT_UNLOCK_EDL in MiFlash but it did not do anything. It flashed OK but I still cannot access fastboot. Should I flash some marshmallow rom? Thanks in advance.
I have the same problem. Cannot enter fastboot mode on Nougat ROM.
Ok I found the way usin Axon 7 Toolkit
1. Set the Android version to 7 using option 13
2. Perform unlock bootloader
Following instruction Axon & Tookit gives you EDL image of the proper fastboot partition giving the possibility to enter fastboot mode
then fasboot oem lock
I wanted to say thanks that works, but apparently my phone is bricked now - it hangs on green ZTE logo. PC recognizes it as DFU. Cannot enter EDL either. I guess I look for some guide how to recover from this situation
Managed to fix that. Somehow I was able to enter fastboot. It said my bootloader was locked so i flashed TWRP and from TWRP using ADB installed stock Nougat rom
ma_ko said:
I wanted to say thanks that works, but apparently my phone is bricked now - it hangs on green ZTE logo. PC recognizes it as DFU. Cannot enter EDL either. I guess I look for some guide how to recover from this situation
Managed to fix that. Somehow I was able to enter fastboot. It said my bootloader was locked so i flashed TWRP and from TWRP using ADB installed stock Nougat rom
Click to expand...
Click to collapse
If you was able flash twrp mens your boolaeder was unlocked?
No there's a TWRP that works on locked bootloader.
ma_ko said:
No there's a TWRP that works on locked bootloader.
Click to expand...
Click to collapse
Seems that TWRP was inatlled before the bootloder was locked again.

s-975l

Is the bootloader on this phone already unlocked? In other words, can I flash TWRP to it? Thanks

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