SONY XPERIA - BOOTLOADER UNLOCKER CODE- JUST DOWNLOAD AND ENJOY

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download unlock bootloader
But before proceeding this, just first check by this code dial , check root status
*#*#7378423#*#*
A menu will appear on the screen and then go to service info option --> configuration, --> rooting status
now look at bootloader status if it says no than it can not  unlock bootloader
otherwise it can be unlocked ur bootloader


Download unlock bootloader