Unbrick your PSP with Pandora's Battery.

There is a new PSP unbricker, named Pandora's Battery. It works as follows:-

• You run a program on a homebrew-enabled PSP that will convert a standard PSP battery into a jigkick battery. Note that you can't then use that battery normally - so you should use a spare one.
• You run a program to generate the unbricker memory stick image, built from the v1.5 update EBOOT (note that this, and the custom IPL, means the release is completely free of Sony copyright materials).
• You run some programs on a PC to install the image to your memory stick.

Upon which you will have a battery and memory card combo that works like a jigkick battery combo - you can insert them into any bricked PSP and it will re-install firmware v1.5 into it, effectively unbricking it. Seems it even works for future firmware versions.

To find the instructions, donation methods (if you do use it) and do it on your own risk, click here.