How Come The Psp Power Light Won't Turn On?

First you take out the battery then put it on again , charge it and see what happens.

My psp won't turn om at all how would i fix this

Mine is like this now and on some websites it might be that the charger is broken.

You need a new battery or a screen

Well since ive had experience with this, get a number 0 scwer driver, open the psp(look up on google to find out how) once done, youre going to see a green chip problaby an inch or 2 long with the swich to turn on the psp and the power light. Make sure its in right or if its not broken.
Note(this is for psp slim)