problem with xperia m2 dual

[alvice2004]

after a call of duty heroes installation from google play the phone shut down and it doesn'twork at all. can anybody help me?

[Uliwooly · Accepted solution]

Connect your phone to a wall charger > press and hold power & volume up for 10 seconds > let it charge for 2 to 3 hours 

[Thommo]

If that doesn't work then consider performing a system repair - 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

[alvice2004]

thanks my friend. you were very helpfull

[Uliwooly]

Anytime, but it will be wise to backup and repair your phone

PC Companion (PCC)

Bridge (for Mac)

Alternatives on How to backup Xperias

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