My PSP suddenly like 'died' on me. I put it into sleep mode in the morning. In the afternoon, when I tried to on it there's totally no green LED, no screen at all. Even when I plug the AC charger with or without the battery inserted, the PSP simply won't turn on except that the battery charging amber LED is lit.
However with a Pandora Battery a 'magic' memory stick, I can boot into Pandora or ELF menu. Choosing reboot from ELF, M33 Pandora menu doesn't work. VSH menu 'reboot device' option in Test 5.00-M33 also doesn't work. I've also tried flashing 6.35 OFW in Test M33 environment. The update went without a hitch but once reboot/shutdown, the PSP is like basically brick.