Share your experience!
Try performing a system repair using Pc Companion as this will often fix issues - This will factory reset your phone
Switch off your phone and unplug from Pc (Hold volume up and power for around 10 seconds)
Start PC Companion and select Support zone then Update my phone/tablet then in Blue Repair my phone/tablet and follow the onscreen instructions - When prompted connect your phone still switched off holding volume down or back button - This should start the repair or reformat process
If you are using Windows 8/8.1 or a 64bit operating system then adjust the settings for PC Companion and run in compatibility mode and chose Windows 7 or XP
Hi, could you try....Settings - Apps then swipe right to All then scroll down to InCallUI & select :smileysmileywink:
So, when your phone rings & vibrates is the screen black
You could try running the phone in Safe Mode, this will show if there are any 3rd party apps that could be interferring with your phone functions....link below
http://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008
Thats great news......my pleasure 