Hi, I just bricked my PSP (jap ver.) not because of a hack but because of a system failure while updating from 2.0 to 2.5. Hereīs how it happened: I had to update via the memory stick so I downloaded the update via playstation site - I followed all the procedures (had a full battery - was connected to a power supply - had a lot of space). Then I started the update - everything went fine until the psp device went blank in the middle of the updating process, as if it was hibernating and then after a while it shut down - and voila, I have a bricked PSP. Sony Japan is looking into it but itīs so frustrating that the PSP is so vulnrable for any systematic errors and their solution, in my case, is to get a new motherboard.
On to my theory... since Iīm negotiating with Sony I canīt try this out my self because it involves braking the warranty.
Part 1. "Every modern motherboard contains a CMOS (Complementary Metal-Oxide Semiconductor) memory chip which is powered by a small battery, storing any changes you have made to the default BIOS configuration. This is why you can restore your BIOS to its default settings simply by removing the motherboard battery for a few minutes." taken from: http://www.pcstats.com/articleview.cfm?articleID=1605
Part 2. Is this possible with the PSP motherboard? Iīve seen some detailed pic. of the motherboard and it seems to be a battery there. Here are some pics.: http://www.lik-sang.com/psp.html
It makes me wonder about all those people who want a bricked PSP and claim they can fix them and then sell them so easily. I canīt believe that they would like to buy those PSPīs and install a new motherboard which cost around 100$.
This is only a theory so I would gladly like to be proven or called a fuzzy lumpkin.