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19th March 2014, 10:43 AM |#11  
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Originally Posted by chunlianghere

u need to lock it back to get update.

Sent from my C6903 using xda app-developers app

1. He cant becouse he doesnt have TA Backup
2. You only need to have Stock Sony Kernel [4.4 Kernel] dont matter if your Bootloader is locked or unlocked.