Hi everyone, I got an iPhone 4 which is one of this foreign used. It was given me by my brother and since then it is not switching on. It does not display on screen either when charging or when powered on. Took it to an engineer, they first said it's the battery later they say it's the screen but till now it's still the same problem. I will appreciate anyone who can give suggestions on fixing it. Thanks.

abeg make una help me. I no get correct phone