Originally Posted by cities516
I'm afraid it may be hardware problem.
Anyway if you have locked bootloader repair it via Update Service.
Use Emma if you have unlocked bootloader.
You are saying the same for every people which have different problems. If you want help like that better if you stop "helping".
Do you have warranty? If you unlocked your phone you don't have it. You should send email to Sony or go to Sony Xperia Chat Support and explain there your problem.
Sent from my LT26i using xda developers-app