Iphone 5s ios7 no sound while recording?

I've got following issues after jailbreak
1. No sounds while recording video ( its ok using voice memos)
2. Not charging when i'm using phone (it charges after i turn off phone)
3. Overheating and drain battery fast while browsing

Please… Any suggestion would be appreciate

Restore it

  • Will my voice sound better or worse on recording? To practise for auditions, I record myself (on my iPhone 4s if that makes a dofference) singing and doing monologues. What I want to know if those recordings make my voice sound better or worse than how it actually is, or if that's how everyone else around me hears my talking/singing.
  • Why does it sound different when i listen to an iphone recording with versus without headphones? I post little covers of myself singing and it just seems that without headphones, my voice sounds more resonant and full but when i plug in my headphones it just sounds really whiny and lacking bass. Is the sound with headphones a more accurate sound?
  • When I sing I sound good in my head but on recording it doesn't sound as good? I understand why this is but I want to know if it is because my iPhone recording quality isn't good. If not how do I actually listen to how others hear me sing.
  • Play music while recording yourself? I have an IPhone and I want to find an app that I can record videos on but play the music at the same time. I have jamcam but I have to hold the thing down in order to record. I don't want to have to hold anything. What if I wanted to record myself dancing? Also I don't have like any iTunes music so I don't have anything to import. So I need: An app that already has music I can import. Like Jamcam but no limit on how long the video are or music