Help me fix this!!3.problems sony xperia s

[INeedHelp004]

1.i use walkman for music sometimes the music randomly stops and if I turn my screen off the music stops
2. I can't turn off wifi and 3g
3. Automatic screen rotation thingy automatically disables it seld after I turn my phone off
I reseted this phone, but it didnt help ;((
Sony Xperia S

[INeedHelp004]

And I use android 4.2.1 not rooted

[INeedHelp004]

Edit:And I use android 4.1.2 not rooted

[Samuel1]

I suggest that you try to repair the phone software using PC Companion..

Before repairing your device you may want to backup your information first. Check out this topic for more information on how to.
How to backup?

If the issue should still remain I think that this needs to be examined and fixed at a repair center. For more information about how to submit your phone for repair and where, contact your local support team.