When I try listing to music on my psp, it starts turning off and on I trying googleing for a answer to resolve the issue, didn't find one tried taking the battery out and starting it up with the AC cable plugged up, Does the same thing and I even tried taking out the memory stick it stays on longer but after that it powers on and off.
NOTES: I Have CFW (Not permanent)
It started doing this last night.
It still turns on and off while charging.
My psp is old I had it for long time (I think I had it for five years)
It even does this when trying to boot into CFW mode.
UPDATE: When I pull the power switch down where all of the buttons on the psp are disabled, it doesn't cut off at all.