[GUIDE] How to unlock bootloader

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evildog1

Senior Member
May 2, 2012
1,620
834
Nice find!
No DRM crap or anything that would cause some features to be lost (stopped working) after unlocking bootloader?
I'm Sony user btw and had already lost DRM and some of its features, including camera that didn't work on older ROM version XD
 

Mick_Rinelander

New member
Nov 11, 2020
3
1
Doesn't work for me.
C:\Users\User\Downloads\platform-tools>fastboot flashing unlock
FAILED (remote: 'Unrecognized command flashing unlock')
fastboot: error: Command failed
Any suggestions?
 
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fitz_aw

New member
Nov 13, 2020
1
0
Hello, friends on the fifth floor
Before using FastBoot flash unlock, you need to open OEM lock in developer mode now. You can try my way and give me a reply on how to unlock normally. I am looking forward to your reply:)
 

wpride77

New member
Mar 5, 2021
1
0
Doesn't work for me.
C:\Users\User\Downloads\platform-tools>fastboot flashing unlock
FAILED (remote: 'Unrecognized command flashing unlock')
fastboot: error: Command failed
Any suggestions?

Start CMD: adb reboot bootloader
then run
fastboot flashing unlock (for devices above 2015 y.)

If you still have this error, make sure if you have Correctly driver installed (must be Android bootloader interface) !!!!!!!!!!

Enjoy!!!
 
Bootloader can now be easily unlocked as same as Pixel devices.
Older get_identifier_token command is no more needed.

Instructions

  1. Connect your device and PC, then simply run below command.
    Code:
    fastboot flashing unlock
  2. Select "UNLOCK THE BOOTLODER" by volume key and press power button.
  3. Done!

Cheers!
Were you able to flash any GSI roms on your unlocked HTC Desire 20 Pro?
i have one and im thinking of unlocking it
 

Israfil_miya

Member
Sep 4, 2021
5
1
C:\Users\mypc>fastboot flashing unlock
FAILED (remote: 'Not implemet.')
fastboot: error: Command failed

Getting this error on my Itel A48 (L6006) running on android Q.......fastboot and adb drivers are installed and fastboot recognize my device
 

max142

New member
Nov 22, 2021
2
0
is this will work

can we find boot.img

1637601329293.png
 

text1

Senior Member
Jan 24, 2012
53
21
BAKU

Bootloader can now be easily unlocked.

Older get_identifier_token command is no more needed.

Instructions


  1. Download HTC_Driver_v4.17.0.001 and install the package.
  2. Download Google USB Driver. ( For installation information, read Install a USB Driver) .👇👇👇
To install the Android USB driver on Windows 10/11 for the first time, do the following:

  1. Connect your Android device to your computer's USB port.
  2. From Windows Explorer ( Search ), open Computer Management.
  3. In the Computer Management left pane, select Device Manager.
  4. In the Device Manager right pane, locate and expand Portable Devices or Other Devices, depending on which one you see.
  5. Right-click the name of the device you connected, and then select Update Driver Software.
  6. In the Hardware Update wizard, select Browse my computer for driver software and click Next.
  7. Click Browse and then locate the Google USB driver folder.


Connect your device to your computer and Backup device

( Get a complete backup of your contacts, messages, apps, and internal storage. Now usually, Enabling OEM unlock won’t erase the data on the device. But obviously, the eventual step after OEM unlock is bootloader unlocking, and that will wipe away everything on your device )
  1. Download ADB. ( How to Install ADB on Windows, macOS, and Linux )
  2. Enable OEM Unlocking
    • Open the settings on your phone.
    • Find the section that says “Developer options” and tap on it.
    • Scroll down till you find the option “OEM unlock”
    • Tap on it to turn the toggle on, and you are done.

  3. Then simply run below command.
    Code:
    adb devices
    Code:
    adb reboot bootloader
    Code:
    fastboot flashing unlock

  4. Select "UNLOCK THE BOOTLODER" by volume key and press power button.
  5. Done!
 
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elimiriel

Senior Member
Apr 26, 2010
65
5
D:\android\Bat\com>fastboot flashing unlock
FAILED (remote: 'unknown command')
fastboot: error: Command failed

I've experienced error messages like this. OEM is unlocked in the developer mode, and the device is in bootloader also. Am I missed something?
 

Nightwing0815

Senior Member
Sep 10, 2010
140
9
nightwing.eu
Bootloader can now be easily unlocked as same as Pixel devices.
Older get_identifier_token command is no more needed.

Instructions

  1. Connect your device and PC, then simply run below command.
    Code:
    fastboot flashing unlock
  2. Select "UNLOCK THE BOOTLODER" by volume key and press power button.
  3. Done!

Cheers!
Thanks mate!
I can confirm same strategy for the new Desire 21 pro 5G.

ToM
 
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  • 1
    Bootloader can now be easily unlocked as same as Pixel devices.
    Older get_identifier_token command is no more needed.

    Instructions

    1. Connect your device and PC, then simply run below command.
      Code:
      fastboot flashing unlock
    2. Select "UNLOCK THE BOOTLODER" by volume key and press power button.
    3. Done!

    Cheers!
    Thanks mate!
    I can confirm same strategy for the new Desire 21 pro 5G.

    ToM
  • 6
    Bootloader can now be easily unlocked as same as Pixel devices.
    Older get_identifier_token command is no more needed.

    Instructions

    1. Connect your device and PC, then simply run below command.
      Code:
      fastboot flashing unlock
    2. Select "UNLOCK THE BOOTLODER" by volume key and press power button.
    3. Done!

    Cheers!
    1
    Doesn't work for me.
    C:\Users\User\Downloads\platform-tools>fastboot flashing unlock
    FAILED (remote: 'Unrecognized command flashing unlock')
    fastboot: error: Command failed
    Any suggestions?
    1

    Bootloader can now be easily unlocked.

    Older get_identifier_token command is no more needed.

    Instructions


    1. Download HTC_Driver_v4.17.0.001 and install the package.
    2. Download Google USB Driver. ( For installation information, read Install a USB Driver) .👇👇👇
    To install the Android USB driver on Windows 10/11 for the first time, do the following:

    1. Connect your Android device to your computer's USB port.
    2. From Windows Explorer ( Search ), open Computer Management.
    3. In the Computer Management left pane, select Device Manager.
    4. In the Device Manager right pane, locate and expand Portable Devices or Other Devices, depending on which one you see.
    5. Right-click the name of the device you connected, and then select Update Driver Software.
    6. In the Hardware Update wizard, select Browse my computer for driver software and click Next.
    7. Click Browse and then locate the Google USB driver folder.


    Connect your device to your computer and Backup device

    ( Get a complete backup of your contacts, messages, apps, and internal storage. Now usually, Enabling OEM unlock won’t erase the data on the device. But obviously, the eventual step after OEM unlock is bootloader unlocking, and that will wipe away everything on your device )
    1. Download ADB. ( How to Install ADB on Windows, macOS, and Linux )
    2. Enable OEM Unlocking
      • Open the settings on your phone.
      • Find the section that says “Developer options” and tap on it.
      • Scroll down till you find the option “OEM unlock”
      • Tap on it to turn the toggle on, and you are done.

    3. Then simply run below command.
      Code:
      adb devices
      Code:
      adb reboot bootloader
      Code:
      fastboot flashing unlock

    4. Select "UNLOCK THE BOOTLODER" by volume key and press power button.
    5. Done!
    1
    Bootloader can now be easily unlocked as same as Pixel devices.
    Older get_identifier_token command is no more needed.

    Instructions

    1. Connect your device and PC, then simply run below command.
      Code:
      fastboot flashing unlock
    2. Select "UNLOCK THE BOOTLODER" by volume key and press power button.
    3. Done!

    Cheers!
    Thanks mate!
    I can confirm same strategy for the new Desire 21 pro 5G.

    ToM