The screen is lit but will not display anything

I replaced the screen and the circuit board but the screen won't display anything. There is some light and I heard the hard drive make a noise. I've had it charging all day and I plugged it into iTunes. I've also tried resetting it but nothing is working. What can the problem be?

この質問に回答する 同じ問題があります

この質問は役に立ちましたか?

スコア 1
コメントを追加