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Dead xperia u

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By sakis k, Junior Member on 14th February 2014, 07:44 AM
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Hi guys, i m having an xperia u running ics. it fell from my hands and froze so i took the battery out to restart, since then i cant turn on my phone when i press the power button it just vibrates once an there is backlight on the screen but nothing else not even the sony logo. Sometimes the illumination bar flashes green. i tried everything from removing the battery several times to flashing. the flashing proccess completes with no errors but the problem is still there. Any ideas? i have no custom roms or so only rooted with flashtools...
Last edited by sakis k; 14th February 2014 at 07:50 AM.
 
 
14th February 2014, 09:09 AM |#2  
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It seems the screen was broken take it to any nearby center to repair its hardware

Sent from my C6603 using XDA Premium 4 mobile app
14th February 2014, 03:24 PM |#3  
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Thank you for your answer, but i m pretty sure that the screen is not damaged maybe motherboard, although i would like to be sure that there is no software problem if possible... from what i have read when the sony logo doesnt appear means that the kernel is dammaged... is there any way to flash xperia u stock kernel first and then flash the firmware? also i had asked sony to give me the code to unlock the bootloader, but i never used it and didnt unlocked it, have i lost my warranty only for asking for the code?
15th February 2014, 09:03 AM |#4  
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Quote:
Originally Posted by sakis k

Thank you for your answer, but i m pretty sure that the screen is not damaged maybe motherboard, although i would like to be sure that there is no software problem if possible... from what i have read when the sony logo doesnt appear means that the kernel is dammaged... is there any way to flash xperia u stock kernel first and then flash the firmware? also i had asked sony to give me the code to unlock the bootloader, but i never used it and didnt unlocked it, have i lost my warranty only for asking for the code?

Your warranty is still valid. I suspect your motherboard is damaged. But since u dropped it means warranty is gone

Sent from my Xperia P using Tapatalk
Last edited by AndroidNoob69; 15th February 2014 at 10:00 AM.
12th March 2014, 08:09 PM |#5  
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Quote:
Originally Posted by AndroidNoob69

Your warranty is still valid. I suspect your motherboard is damaged. But since u dropped it means warranty is gone

Sent from my Xperia P using Tapatalk

Finally, the problem was the screen and the touchpad, they changed both at the service point under warranty, as they had no obvious damage i guess... is this a common problem with st25?
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