Modifying the PSP
By Michael Hansell
What type of Power does the PSP
have?
PSP CPU (System clock frequency 1~333MHz)
32MB Main Memory
4MB Embedded DRAM
IEEE 802.11b (Wi-Fi)
USB 2.0 (Target)
Memory Stick PRO Duo
IrDA
Compare to PS2
System Clock Frequency: 294.912 MHz
Memory Size: 32MB
Embedded DRAM: 4MB
What Firmware do you have?
What Versions are there? And what
do each of them mean?
Downgrading
http://www.psp-hacks.com/forums/about17935.html
2.71 firmware emulation
1. Download Devhook 0.44 and put everything on the memory stick.
http://dl.qj.net/index.php?pg=12&fid=8807
2. Download the 2.71 Firmware update.
http://dl.qj.net/Firmware-2.71-PSP/pg/12/fid/8046/catid/1633.
3. Download PBP Unpacker:
http://www.pdc.me.uk/pbpunpacker.php?
4. Open the EBOOT.PBP with PBP Unpacker or
similar and extract the DATA.PSAR file.
5. Put the DATA.PSAR in the root of the memory stick.
6. Run the included Devhook installer on the PSP (install flash0 and
flash1).
7. Extract Devhook 0.44 again and overwrite everything in the dh
folder (its going to be a couple of .txt which include the path for the
prx's)
8. Get a decompressed 2.71 reboot.bin
http://rapidshare.de/files/32183676/reboot.bin.html8.
9. Place reboot.bin in ms0:dh271reboot.bin
Okay, now I have the PSP downgraded, what can I do with it?
“Allows users to "view" the games memory and then edit essentially any part of a game
through searching. You can find any code just by using search functions such as
"Greater", "Less", "Equal", "Not Equal".”
Which is similar to Artmoney, Tsearch or GameShark Pro
http://pspupdates.qj.net/CheatMaster-0-6-Alpha-for-DevHook/pg/49/aid/69666
Coming soon!!!
http://www.psp-linux.org/
Helpful links:
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http://pspupdates.qj.net/
http://www.psp-hacks.com/forums/about17935.html
http://www.pdc.me.uk/pbpunpacker.php?
http://pspupdates.qj.net/CheatMaster-0-6-Alpha-forDevHook/pg/49/aid/69666
http://www.psp-linux.org