on 13-12-2014 14:00
on 13-12-2014 14:00
on 13-12-2014 14:30
on 13-12-2014 14:30
what software version are you using?
Scroll down to and tap Settings
Tap about
Under phone information you will see the Software on the phone
Tap more information to see the exact version
on 13-12-2014 15:56
on 13-12-2014 15:56
on 15-12-2014 18:03
on 15-12-2014 18:03
Windows Phone 8.1
OS version 8.10.12393.890
Hope that helps