(Last Updated On: October 21, 2019)

in this post we will give full guide to unlock Bootloder on your Sony xperia phone. we use Fast boot. and we discuss errors of unlocking booder on below the guide.

Why Is Bootloader Locked?

Android is an open source OS but Usually android device comes with locked bootloader because manufacturers want control modifications on theirs phones.  So, they lock the bootloader on their phones. when locked bootloader, it is very impossible to Flash Custom Recovery or Custom Rom  or root as well as end up with bricks

How to unlock Bootloader on any Sony Xperia phone

Step 1,

Step 2,

  • Turn on USB debugging option on your Sony xperia phone.
  • switch off your Sony xperia phone by pressing power button

Step 3,

Press and hold fastboot button and connect Sony xperia to your computer/laptop. had better use original USB data cable.

Step 4,

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  • accept Terms & conditions and Submit
  • then you received email from that site. and there is a link to official Site. click that link

Step 5,

  • Now enter your imei number (which we told you to write down. )

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  • accept Terms & conditions and Submit
  • next page, We will able to see your unlock code. Copy it

Step 6,

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Step 7,

After install you should be on Command window.

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Step 8

  • Type below Codes on that command window and press enter

fastboot devices

  • Second code is,

fastboot -i 0x0fce oem unlock 0x “your unlock code”

 

example : – fastboot -i 0x0fce oem unlock 0x87eb234h6212g5646

If your device is successfully unlocked then command window says finished

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 I try to unlock my bootloader but i can’t it because it FAILED.

40/044/2016 14:35:34 – INFO – Device connected in fastboot mode
40/044/2016 14:35:34 – INFO – Unlocking phone using key XXXXXXXXXXXXXXXXXX
40/044/2016 14:35:35 – INFO – …
40/044/2016 14:35:34 – INFO – FAILED (remote: Command did not succeed)
40/044/2016 14:35:36 – INFO – finished. total time: 0.036s

A : 

  1. are you sure whether you install drivers properly? please uninstall and reinstall.
  2. as wel as you phone must be on booted in fastboot.
  3.  may be your phone is already unlocked 
  4. use different USB port or another computer

command prompt says “Your phone bootloader cannot be officially unlocked” why? 

03/038/2016 12:37:18 – ERROR – Processing of loader.sin finished with errors.
03/038/2016 12:37:18 – ERROR –
03/038/2016 12:37:18 – INFO – Your phone bootloader cannot be officially unlocked
03/038/2016 12:37:18 – INFO – You can now unplug and restart your phone

A: developer.sonymobile  allow to unlock bootloder on some of device only. see the Supported device

I can’t turn on my Sony xperia phone.. it is automatically rebooting.. I think that its bootloop. now what?

A: thats mean, you have done some wrong, but you can fix it by installing Stock Firmware again. 

 remote: Device is already rooted “FAILED: Root already exist”

A: If your phone is rooted then its mean, your bootloader is already unlocked.

Can i Lock bootloader again? back to a locked

A: Sony answer for that quation officially. they says that you can’t lock your bootloader once you unlock it. but you can use  “Flash tool for Xperia” although it can’t get Sony updates..

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