Unlock The Bootloader On Sony Xperia XZ3 [H9436/ H9493]

A Bootloader is a code which runs when we turn on our smartphone device. This code initializes some hardware and then loads the kernel and ramdisk, and gets the boot processing. So this process is known as Bootloader. The same concept applies to all the technical stuff such as Laptop, PC, Smartphones and any such device. Every Android OEM manufacturers lock the bootloader even though it is an Open Source. So if you want to try any CUSTOM ROM, it is impossible to load the CUSTOM ROM without the Unlock Bootloader. So Manufacturer made a policy of making the smartphone with Unlocked Bootloader will void the warranty. They want you to stick with the Stock ROM. Unlock Bootloader allows you to Root your android smartphone, Flash TWRP and Custom ROM in a simple easy method.

Unlock the bootloader on any smartphone device required patience and hard work, where you need steps to follow the methods Unlock The Bootloader On Sony Xperia.
All Sony Xperia XZ3 (Codename: Akatsuki) users. Now you can Unlock The Bootloader On Sony Xperia XZ3, Read all the instruction carefully. Today i will guideline you on Unlock The Bootloader On Sony Xperia XZ3 Smartphone device. To flash or root and even install custom ROM you need to unlock the bootloader on your android device. To unlock you need to unlock key from the Sony’s official Unlock Bootloader Page. Even though we have a dedicated page from Sony, it doesn’t mean you can unlock it just by tap.

Steps to Unlock the Bootloader on Sony Xperia XZ3
Before proceeding, make sure to understand and download the required tools and drivers.


  • To Unlock Bootloader On Sony Xperia XZ3 (Akatsuki), you need a computer.
  • Supported Models are H9436 and H9493
  • Charge the Xperia XZ3 to minimum 70% battery level to avoid any sudden shutdowns during the process.
  • We strongly recommend you to take a complete full backup of your personal data, including the internal storage. The phone will be formatted, so be prepared for it. You can also follow our guide How to Backup Your Android for the same.
  • You need a USB cable to connect your phone to computer.

Required Files on your Computer:

Steps to Unlock Bootloader on Sony Xperia XZ3

  1. First of all make sure your device can be unlocked or not, To Check Follow the below steps:
    • In your device, open the dialer and enter *#*#7378423#*#* to access the service menu.
    • Tap Service info ➔ Configuration ➔ Rooting Status. If Bootloader unlock allowed says Yes, then you can continue to the next step. If it says No, or if the status is missing, your device cannot be unlocked.
  2. Now Go to the official Unlock Bootloader website of Sony: CLICK HERE.
  3. Scroll down and select your device, and press Continue
  4. Now register your email.
  5. You will receive a mail to confirm, Tap on “Click here to proceed”.
  6. Once you enter into the Sony Unlocker page, you will be asked to enter your smartphone IMEI no, Now ENTER THE IMEI NO inside the BOX. 
  7. You will get your unlock key once, Now Copy the unlocker key in a notepad.
  8. Now You need to enable the Developer Option on your phone.
  9. To Enable the Developer Option. – Go to your Settings ➔ About Phone ➔ Now Tap on the Build Number 7-8 Times until you see a toast message “Developer option enabled
  10. Now go to Developer option in the settings and Enable OEM unlock.
  11. Download ADB Fastboot tool and Extract the ADB Fastboot Tool somewhere in PC (Link is given above)
  12. Now Open the Extractor ADB and Fastboot folder and Open Command Window by pressing Shift Key + Right Mouse Click.
  13. Now connect the PC to Mobile with USB Cable
  14. You need to Reboot the phone into Bootloader – Type the Command from below in your Command window that you opened
    adb reboot bootloader
  15. Your device will boot into bootloader. (If it doesn’t then please check your Cable or ADB Drivers and Install again). Now enter the command with your unlock key after the OEM unlock and replace this character 0x07B7BFEA7AC879F0 with your unlock key
    fastboot -i 0x0fce oem unlock 0x07B7BFEA7AC879F0
  16. That’s it! You have successfully Unlock The Bootloader On Sony Xperia XZ3.
  17. You can now reboot your phone.

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