Xperia U Auto restart problem

[LambaR]

Hi,

My phone was working fine few hrs ago, but i got a call and meen while i got few errors all togather and errors was not alowing me to pick the call. When i try to boot my phone, my phone got off but not get started again. It showing "Sony" logo then "Xperia" logo then getting auto restart. 

Please help me to get the same fixed also advice how i can get the contact restore in this condition when phone is not geting started.

Thanks

[_alexdon_]

If the phone does not turn on,you will not be able to restore or backup anything.You should try a repair via SUS:

http://www.sonymobile.com/gb/tools/update-service/

[LambaR]

Tired doing the same as you suggest. but nthng happends. my phone is not connectted with software.

[_alexdon_]

See if you are able to boot it in safe mode:

http://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008#U348008

[gizmonomono]

I have the same problem, mine won't start in safe mode.

[LambaR]

HI,

My phone is not geting started.. how i can follow the steps adviced by you  Its not even starting in safe mode.

Thanks

[_alexdon_]

Charge for 1 hour,after that remove the battery and put it back in.Try to repair with SUS.

[Swaroop2214]

 Updated via sony update service still  problem remains the same.

[_alexdon_]

You should take it to closest sony service:

http://www.sonymobile.com/global-en/support/contact-us/