Failed to unlock the bootloader

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ambrosiosinho
Posts: 1
Joined: Sun Aug 08, 2021 4:26 pm
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Failed to unlock the bootloader

Post by ambrosiosinho » Sun Aug 08, 2021 4:32 pm

Hello,

I'm stuck at a "Failed to unlock the bootloader - It is not possible to unlock the bootloader straight after flashing. NOTE: Fully reboot the phone and then properly shutdown the phone, before you can try to unlock again!" message. I tried rebooting the phone and then turning it off and restart the process, but it doesn't seem to help. Has any of you faced the same problem? If yes, how did you solve it? (not sure if I got the instructions right)

Btw, Lumia 950 XL here
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Sztyepadzso
Posts: 7
Joined: Tue Apr 28, 2020 9:04 am
Location: Vienna
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Re: Failed to unlock the bootloader

Post by Sztyepadzso » Wed Aug 11, 2021 4:20 pm

What have you done, when you had faced with this problem?
Once I was tried to setting up the phone(like you do after a HR/WDRT), and I had tried to flash in the middle of this.

As it says: You have to restart the phone turn off, and then on again. Then it will be ok.
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utf8coding
Posts: 2
Joined: Tue Jan 25, 2022 9:02 am

Re: Failed to unlock the bootloader

Post by utf8coding » Tue Jan 25, 2022 9:19 am

I've met the same problem as you do and managed to figure it out ---- I just changed the USB port I use from USB 3.X to USB 2.x, flashed it with another computer and it worked. Also, you should try to flash your phone with the original .ffu file first before doing the unlock. Good luck~
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klubezak
Posts: 2
Joined: Sun May 22, 2022 6:45 pm

Re: Failed to unlock the bootloader

Post by klubezak » Sun May 22, 2022 6:48 pm

I have browsed several site and I have not found a solution.
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