Guide [for beginners] - How To Unlock Bootloader via Flashtool

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http://forum.xda-developers.com – I am assuming your phone can be bootloader unlocked and you have unlocking key from sony. If you don't know then refer to this post http://forum.xda-developers.com/show....php?t=1527159 WARNING: IT WILL WIPE YOUR PHONE DATA SO MAKE BACKUP 1. Install Flashboot and Fastboot drivers of Flashtool (setup file will be on C:\Flashtool\drivers or similar place). 2. Turn on your phone, and connect with usb debugging on. 3. Go to Plugins-> Bootloader Unlock option, start it. 4. Now it will ask to disconnect your phone and reboot in FLASHMODE. 5. Again reboot your phone in FASTBOOT mode. (HowTos)