Xperia Go won't turn on with sim card in it.

[DjDaniel]

I have the Xperia Go for 1 years and a half now and just recently after I've updated it, it will not turn on with the sim card in. When it successfully booted, it enters the lock screen for half a second and then turn off back. This will not happen without the sim card. It works just fine the night I've updated the phone..

[Devilon]

try to repair ur phne softweare with Sony Update Service or Pc Companion 

if not slove than try hard reset ( hold power key and volume + kea until ur phne vibrate 3 or 4 times )

[Uliwooly]

Update Service (SUS)

PC Companion (PCC)

Bridge (for Mac)

Alternatives on How to backup Xperias

http://talk.sonymobile.com/thread/36355