One of the biggest victories for the homebrew community was the development of Pandora's Battery, a device that allows hackers to unbrick and downgrade nearly every PSP on the market. Reverting systems from later firmware releases from Sony allows hackers to exploit the system and run homebrew on the machine.The usual method of producing a Pandora's Battery required multiple systems and a rather cumbersome software installation process. Quite possibly even more nerve-wracking than the current solution is a new hardware-based one, which requires actual disassembly of the PSP battery. Supposedly, only a single wire needs to be soldered in order for any standard PSP battery to turn into a service one. Quite a fascinating find!
We wouldn't be able to muster up the courage to open a battery and start playing around with its innards. However, for the inquisitive, this is yet another fascinating discovery about the particular workings of the PSP.
[Via PSP Hacks]

