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[Q] OnePlus One - Unable to unlock bootloader again after relocking

Hi Guys,
Hope to get some help here.
So i unlocked the bootloader of my one plus one and installed supersu + Twrp recovery. All worked fine until i decided to relock the bootloader.
I've put the device into fastboot mode and executed "fastboot oem lock" with twrp recovery still in there.
Now i am trying to unlock the bootloader again using "fastboot oem unlock" to be able to flash the stock recovery and having issues.
output of commands:
Code:
C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot oem unlock
...
OKAY [ 0.004s]
finished. total time: 0.005s
C:\Program Files (x86)\Minimal ADB and Fastboot>
After this it boots straight to twrp recovery. I then hit reboot system and go back to fastboot mode and run the below:
Code:
C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash recovery recovery
.img
target reported max download size of 536870912 bytes
sending 'recovery' (12260 KB)...
OKAY [ 0.389s]
writing 'recovery'...
FAILED (remote: Device not unlocked cannot flash or erase)
finished. total time: 0.404s
Anyone has an idea how i can unlock the bootloader again ?
Thanks
Vik

Would it let you reflash the stock factory image thru fastboot? Maybe if you could do that it would let you unlock again. And it would give you stock recovery.
Or else what about the option in developer settings to update the stock cm recovery when installing an update. Maybe you could install an official update thru TWRP and get stock recovery back?
Just throwing out ideas, hope you figure it out

I've documented ths same issue describe here: http://forum.xda-developers.com/oneplus-one/help/locked-bootloader-twr-rooted-t2820341
The solution: http://forum.xda-developers.com/oneplus-one/development/mod-reset-unlock-tamper-bit-t2820912
Download and flash that script.

lemonspeakers said:
I've documented ths same issue describe here: http://forum.xda-developers.com/oneplus-one/help/locked-bootloader-twr-rooted-t2820341
The solution: http://forum.xda-developers.com/oneplus-one/development/mod-reset-unlock-tamper-bit-t2820912
Download and flash that script.
Click to expand...
Click to collapse
Thanks i'll give that a try as soon as am home..

YrrchSebor said:
Would it let you reflash the stock factory image thru fastboot? Maybe if you could do that it would let you unlock again. And it would give you stock recovery.
Or else what about the option in developer settings to update the stock cm recovery when installing an update. Maybe you could install an official update thru TWRP and get stock recovery back?
Just throwing out ideas, hope you figure it out
Click to expand...
Click to collapse
Hi YrrchSebor,
Thanks for the reply.. I already tried all that, even using adb sideload and keep getting same error as mentioned above. I'll try the solution lemonspeakers suggested later today and post the outcome.
Thanks

Vikmeister said:
Hi YrrchSebor,
Thanks for the reply.. I already tried all that, even using adb sideload and keep getting same error as mentioned above. I'll try the solution lemonspeakers suggested later today and post the outcome.
Thanks
Click to expand...
Click to collapse
Be careful if you updated your phone to XNPH30O OTA,
!!! Warning !!!
In the NEW OTA CM11S XNPH30O, the bootloader (aboot) img size changed....
We request all not to apply the unlocker scripts on the new bootloader , until we confirm/find the new bit position.
It might brick your phone and corrupt bootloader...
Click to expand...
Click to collapse
It won't work.. do not try it if you updated to XNPH30O using the OTA.

zephiK said:
Be careful if you updated your phone to XNPH30O OTA,
It won't work.. do not try it if you updated to XNPH30O using the OTA.
Click to expand...
Click to collapse
Thanks for letting me know ZephiK i haven't updated to that version yet. I still have XNPH25R. I should all good.

Fantastic.. Thanks a lot guys.. That worked like a treat.. Bootloader is now unlocked.
:laugh::good:

lemonspeakers said:
I've documented ths same issue describe here: http://forum.xda-developers.com/oneplus-one/help/locked-bootloader-twr-rooted-t2820341
The solution: http://forum.xda-developers.com/oneplus-one/development/mod-reset-unlock-tamper-bit-t2820912
Download and flash that script.
Click to expand...
Click to collapse
I ran this command:
Code:
fastboot.exe boot TWRP-2.7.1.0.img
But the next step does not work:
Code:
It will boot your phone into recovery once from the recovery image
stored in your PC temporarily
then you can flash the zip either by sideload or from sdcard...
I got:
downloading 'boot.img'...
OKAY [ 0.484s]
booting...
FAILED (remote: Device not unlocked cannot boot)
finished. total time: 0.487s

That's because you can't boot a recovery with the recent bootloader unless you're unlocked.
Transmitted via Bacon

Hello,
so how to unlock the bootloader when:
- i can only access to fastboot and i have connectivity to pc;
- command 'fastboot oem unlock' doesn't work( FAILED (remote: oem unlock is disabled) )
- command 'fastboot flash recovery firmware.zip' doesn't work (FAILED (remote: Device not unlocked cannot flash or erase))
- all adb commands say: "error: device not found"
- i can't access recovery for use adb sideload (phone freezes with 1+ icon in screen)
- i can't access Android (phone freezes with 1+ icon in screen)
What can i do?
Thanks in advance!
Gustavo

Im have the same issue but I have no recovery installed..Anyway to do this

i have same issue plz give me any solution if you found any???plz let me know plzzzzz
​
piriri007 said:
Hello,
so how to unlock the bootloader when:
- i can only access to fastboot and i have connectivity to pc;
- command 'fastboot oem unlock' doesn't work( FAILED (remote: oem unlock is disabled) )
- command 'fastboot flash recovery firmware.zip' doesn't work (FAILED (remote: Device not unlocked cannot flash or erase))
- all adb commands say: "error: device not found"
- i can't access recovery for use adb sideload (phone freezes with 1+ icon in screen)
- i can't access Android (phone freezes with 1+ icon in screen)
What can i do?
Thanks in advance!
Gustavo
Click to expand...
Click to collapse
plz help same issue

backup with pattern lock forgot, USB debug disabled, no root permission, stock rom

dear guys,
i need to backup data (media and texts) from my Nexus 5, which is locked by a pattern screen lock that i forgot.
USB debug disabled, no root permission, stock rom.
i'm trying to use "fastboot boot" command to execute without installing CWM(.img); with CWM booted i will be able to use the adb commands to move between folders and backup the data.
BUT, the command "fastboot boot" doesn't work to me cause my bootloader is locked. here the log:
C:\Users\User\AppData\Local\Android\android-sdk\platform-tools>fastboot boot cwm.img.img
downloading 'boot.img'...
OKAY [ 0.473s]
booting...
FAILED (remote: not supported in locked device)
finished. total time: 0.578s
SO, there's a way to use this command with the bootloader locked, or to unlock the bootloader without ereasing the data?
Thanks in advance.

giballroad said:
dear guys,
i need to backup data (media and texts) from my Nexus 5, which is locked by a pattern screen lock that i forgot.
USB debug disabled, no root permission, stock rom.
i'm trying to use "fastboot boot" command to execute without installing CWM(.img); with CWM booted i will be able to use the adb commands to move between folders and backup the data.
BUT, the command "fastboot boot" doesn't work to me cause my bootloader is locked. here the log:
C:\Users\User\AppData\Local\Android\android-sdk\platform-tools>fastboot boot cwm.img.img
downloading 'boot.img'...
OKAY [ 0.473s]
booting...
FAILED (remote: not supported in locked device)
finished. total time: 0.578s
SO, there's a way to use this command with the bootloader locked, or to unlock the bootloader without ereasing the data?
Thanks in advance.
Click to expand...
Click to collapse
Nope. You're screwed. [emoji45]

TWRP not working

After i flash boot.img at the fastboot screen it says:
USB Transfering
USB Transmission OK Time:533ms Vel:24414kb/s
but when i flash recovery.img it shows the same thing as when i flashed boot.img and it says successful in the command prompt but nothing happens on my phone when i re-enter fastboot screen it doesnt load into twrp recovery
any help would be greatly appreciated
Edit: after fiddling around with the commands i managed to flash twrp.img but when using the command "fastboot boot twrp.img"
this comes out:
Downloading boot.img
OKAY [ 0.547s]
booting...
FAILED ( remote: oem unlock is false)
finished. total time : 0.558s

[Xperia XA user said:
;69814617]After i flash boot.img at the fastboot screen it says:
USB Transfering
USB Transmission OK Time:533ms Vel:24414kb/s
but when i flash recovery.img it shows the same thing as when i flashed boot.img and it says successful in the command prompt but nothing happens on my phone when i re-enter fastboot screen it doesnt load into twrp recovery
any help would be greatly appreciated
Edit: after fiddling around with the commands i managed to flash twrp.img but when using the command "fastboot boot twrp.img"
this comes out:
Downloading boot.img
OKAY [ 0.547s]
booting...
FAILED ( remote: oem unlock is false)
finished. total time : 0.558s
Click to expand...
Click to collapse
I never said to enter "fastboot boot", try with "fastboot flash" and the result will be better Please read and read again before saying that TWRP is not working.

Honor 8 - Can't Factory Reset

So I've pretty much hit a wall. I have unlocked bootoader, and everytime I try to enter into factory resetting via volume + power button, it'll boot into "your device is booting now..." and it'll stay there. Same thing if I try to do it via the settings.
Whenever I try to install custom recovery or anything, I get this message.
C:\adb>fastboot flash recovery TWRP-CN.img
target reported max download size of 471859200 bytes
sending 'recovery' (29218 KB)...
OKAY [ 0.789s]
writing 'recovery'...
FAILED (remote: Command not allowed)
finished. total time: 0.804s
I've tried all sorts of twrp files. My phone has locked me out of changing anything from adb commands it seems. How do I fix this?
My FRP is also locked, if that matters. I've tried to delete all accounts from my phone, as well as the "find my phone" option.
I'm on Anroid 7, EMUI 5.
C:\Users\amira\AppData\Local\Android\sdk\platform-tools>adb reboot bootloader
C:\Users\amira\AppData\Local\Android\sdk\platform-tools>fastboot devices
73QDU16B22001173 fastboot
C:\Users\amira\AppData\Local\Android\sdk\platform-tools>fastboot format userdata
FAILED (remote: Command not allowed)
C:\Users\amira\AppData\Local\Android\sdk\platform-tools>fastboot format cache
FAILED (remote: Command not allowed)
OEM is greyed out in the developer settings, I can't activate it or decative.

Try the unlock command again for the bootloader. This worked for me even when it was unlocked before

TomboIa said:
Try the unlock command again for the bootloader. This worked for me even when it was unlocked before
Click to expand...
Click to collapse
C:\Users\amira\AppData\Local\Android\sdk\platform-tools>fastboot oem unlock 1031871703372236
...
FAILED (remote: Command not allowed)
finished. total time: 0.020s
Same thing. It doesn't allow me.

Zebieok said:
C:\Users\amira\AppData\Local\Android\sdk\platform-tools>fastboot oem unlock 1031871703372236
...
FAILED (remote: Command not allowed)
finished. total time: 0.020s
Same thing. It doesn't allow me.
Click to expand...
Click to collapse
Dont share your unlock key here, and are you sure that was your bootloader unlock keys.
Frp lock means your bootloader is locked.

FRP lock is a security action, for remove them you must boot a device and remove all google accounts.
Unfortunately this casw happened to me, when i want factory reset my phone, his dead and i cant boot it again just fastboot work but FRP LOCK activate and i cant flash any thing, give error command not allowed, in last i have to go to repair services, and they do this with hard box (maybe chimera or sigma.. Or other).
If you can boot your device you can do any thing, but if your device get bootloop go to services center.

Help me to unlock my vivo y65 bootloader

When i've try to unlock bootloader via minimal adb and fastboot..i reboot my device to bootloader use the command ( adb reboot bootloader ) but i try to type this command (fastboot oem unlock ) why always unknown comand or device is lock ..same thing with i use (fastboot flashing unlock)..anybody..if u can solve this thing..please help me..

bootloader unlock failed in vivo y65
..
FAILED (remote: unclock fail.)
finished. total time: 0.015s . This always comes when i use fastboot bbk unlock_vivo. Help me solving this problem plz