My i9+++ phone wont turn on

HI,

problem can be solved. How long has it been in the box and when last did you charge the battery of the phone?.

The longer you keep a phone and don't use it, it is likely to affect the phone somehow.

The battery has not been charged for a long period of time and the cell of the battery is weak, that's why the phone is not coming.

You need to charge the battery for longer hour for it to regain the strength to power the phone on again. After longer hours charging of the battery, the phone will come .

Have a pleasant day.