Why do I have a black screen on my phone (boost mobile zte 4g n9510)?

A

AC Question

have black screen on phone (boost mobile zte 4g n9510)

when phone is turn on it receive text , phone calls and emails but the screen remain black so I cant answer none of that how do I fix it and what could be the issue please help me with this problem don't want to buy new phone if it can be a simple fix