User Activity

My camera picture quality suddenly decreased. I used to take shots minimum 8mb sized picture. Now when i take picture it is KB sized and quality is very poor. How can i fix this
Losing 3% battery everynight. Is it normal? Or jow can i fix it?
Lost 3% battry overnight even safe mood was on. Is my battery damaged?? Who can i solve this issue??
Losing 1% battery in 2h without using. Now how can i fix this issu..???
I don't know how I lost my sync button I don't even find there how I can add sync button further..?