Question Mobile Blank screen

[Palash vaishya]

I have a mobile which was fine but i kept it for 2 years and now when i am trying to use it. It is not displaying anything not even the logo of company. though it is vibrating and giving sound i can even take screenshots but screen is not visiable..
please help

 

[hiahia]

Press the power button and volume up key at the same time, hold both until logo comes up then release both. This should fix your problem.