Is this a bug or something?
I've noticed that sometimes when I turn my PSP to sleep mode (I flick the power switch) and if I turn it back on later, it'll reboot up at the XMB.
Sometimes the green light will flash green and the screen will turn on for a split second and then it will turn black and off, so I'll need to flick the switch once more.
I'm using a PSP 1000 with 3.71 M33-2 with the new 1.50 kernal (not sure if that means anything)
I bought the PSP used, so I'm not sure if it's because of that.