chiec ai iphone 3G phien ban 3.0 cua em hom nay khong biet sao ma bam nut home hay bat cu nut nao cung ko hien man hinh len,cung khong co tieng luon.ma em dung may khac goi lai cho iphone thi van duoc,nhg iphone khong co dong tinh gi het,mong moi nguoi giup do cho em voi...:21::012::019: