prolly a dumb ass idea.. - PSP3D.com - Sony PlayStation Portable News, Homebrew, Hacks, Reviews, Videos, Mods, Forums

jaxxvshellgod · #1 (**permalink**) 11-29-2005, 06:54 PM

ive done coding here and there..but now i build computers
now in some systems if you remove the "lithium battery" everything resets
bios wise....in my opinion firmware is basicly the same as a bios
would opening the psp and taking a gander inside be of anyhelp? or totally useless
btw i suck and im back to being a newb so please dont shit on me for this =)

wootoot · #2 (**permalink**) 11-29-2005, 06:57 PM

Nope wont work i dont think, the psp uses FLASH memory to store data and it keeps it all, i dont think their is an internal mini battery INSIDE the psp...or is there? hmm..

jaxxvshellgod · #3 (**permalink**) 11-29-2005, 06:59 PM

another thing..
if you connect 2 computers together you get instant access to hiden files
even if you have to kinda work at them
could it be plausable the next way to downgrade would be having your pc lend a helping hand insted of making it all psp?
sometimes when coding a code can trigger something you were never ment to see...

deimos · #4 (**permalink**) 11-29-2005, 07:05 PM

Quote:

Originally Posted by jaxxvshellgod

ive done coding here and there..but now i build computers
now in some systems if you remove the "lithium battery" everything resets
bios wise....in my opinion firmware is basicly the same as a bios
would opening the psp and taking a gander inside be of anyhelp? or totally useless
btw i suck and im back to being a newb so please dont shit on me for this =)

Removing the CMOS battery in a PC simply resets the bios to the default settings. If the psp had a battery it would simply set the currently loaded settings to default but of course would in no way rectify a stuffed flash. In the same way if you screw up a bios flash on a PC there is no way to fix it without reflashing that chip. What we need is a small eeprom writer, you can get the clip on kinds that simply clip over the chip for flashing. If we could get our hands on something like this we would definately be able to fix the bricked psp's. So if anyone has bricked their psp hang onto it im sure something will appear in the future. I have yet to open up the psp and look at the flash chip to check its size. If it is the one I think it is then I may well have access to the required tool.

jaxxvshellgod · #5 (**permalink**) 11-29-2005, 07:09 PM

im very tempted to take my psp apart but uhm..i like it and only have 1 =P if anyones willing to ship me a bricked psp i may beable to figure something out but i never even seen the insides of it

deimos · #6 (**permalink**) 11-29-2005, 07:15 PM

If one of you guys that bricked ya PSP can open it and get me some shots of the flash chip I will check and see if we have any options to rewrite it.

jaxxvshellgod · #7 (**permalink**) 11-29-2005, 07:18 PM

much cheaper idea lol

Hydra · #8 (**permalink**) 11-29-2005, 07:23 PM

well my advice would be making sure that you remembered where all the parts went back to and that you carefully if at all touched the inside.
even a bricked psp may be fixable with what your planning to do. good luck

deimos · #9 (**permalink**) 11-29-2005, 07:53 PM

Ok I found some pictures on the net of the mainboard in the PSP from what I can see it is the chip that can be clipped and reflashed but it is not high enough res for me to be 100% sure. So if anyone has some high res pics that show the flash rom in detail please let me know.

hkseo100 · #10 (**permalink**) 12-03-2005, 10:34 AM

that might actually work, connecting psp2psp via usb adhoc, and one psp uses file manager strictly built for usb probing, and the usb.prx on the psp that is probing should be replaced with a RAW file, so it wont browse MS0:, it should browse :// (with selection of flash0, and flash1)