Share your experience!
my phone hanging when receiving a call ,screen freezes,network disappears particularly from two callers?
Repair your phone with SUS or PCC
Update Service (SUS)
http://www.sonymobile.com/gb/tools/update-service/
http://www-support-downloads.sonymobile.com/Software%20Downloads/Update_Service_Setup-2.11.12.5.exe
Bridge (for Mac)
Alternatives on How to backup Xperias