The PlayStation Portable (PS3) is as much a hand-held computer as it is a portable game machine. The operating system of the PSP can become corrupted during normal use and suddenly cause the PSP to turn itself off. You do not need any tools to fix the PSP’s operating system so that the PSP will stay on once the power switch has been pressed. Fixing the PSP does not take any electronic skills, nor will you be voiding the Sony warranty in any way.
Put the PSP down on a table with the LCD screen facing up.
Plug the power cord of the PSP power supply into the PSP’s power outlet. Plug the AC plug of the PSP power supply into an AC socket.
Perform a hard reset on the PSP by pushing up on the power switch at the lower-right corner with your index finger.
Count to 15. Release the PSP’s power switch. Count to 30.
Flick the PSP’s power switch up with your index finger and release it. Repeat this procedure a second time.
Wait as the PSP reboots, starts up and stays on.
Remove the PSP power supply’s power cord from the PSP’s power outlet. Remove the PSP power supply’s AC plug from the AC socket.
Flick the power switch up with your index finger to turn off the PSP.
Don’t wait any discernible amount of time between the first and second time you flick the power switch of the PSP on.
Continued problems with the PSP refusing to stay on could be the result of a faulty battery if it is always used without the PSP power supply.