mera fon bhai log bahut hi jyada hang kr rha h....plzzz help me

Plzzz send for me...

Bhai logo meri fon ki battery agr 30% huyi to automatic hi discharge ho jati h...only 5 minutes me..Plzzz help me...

Mere phone me font style change nhi ho rha h...aur download kr rhe hai to paise paid krne k liye bol rha h....aur sb phone me to app download krke bahut sare font style aa jate the...lekin es fon me download ho rha h bt font style nhi change ho rha h...

Plzzz helpBhai log mere fon me koi bhi features bahut let me open hota h...aisa kyu???