My PSP suddenly turned off?

My psp tried to update itself then i turned it off. it wont come back on what do i do?

• when i got naruto ultimate ninja heroes for psp it said i had to update my psp to play. i kept saying no. then finally said yes. it went to another screen and showed what percent it was. i got worried and turned it off. later i tried to turn it on and it didn't work. the green light was on but the screen was black. what do i do

• Answer:

  You bricked your PSP, your PSP requires you to update every now and then so it can add new features to your PSP. When you turn off your PSP during an update you will cause files to corrupt. You will need to buy a new PSP, because you didn't read the instructions that say, do not turn off or remove the memory stick from your PSP. Sorry.