1. Modifying the PSP By Michael Hansell

2. 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

3. Compare to PS2 System Clock Frequency: 294.912 MHz Memory Size: 32MB Embedded DRAM: 4MB

4. What Firmware do you have?

5. What Versions are there? And what do each of them mean?

6. Downgrading http://www.psp-hacks.com/forums/about17935.html

7. 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? 2.71 firmware emulation

8. 4. Open the EBOOT.PBP with PBP Unpacker or similar and extract the DATA.PSAR file.

9. 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. http://rapidshare.de/files/32183676/reboot.bin.html8 9. Place reboot.bin in ms0:dh271reboot.bin

10. 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

11. Coming soon!!! http://www.psp-linux.org/

12. Helpful links: http://pspupdates.qj.net/ http://www.psp-hacks.com/forums/about17935.html http://www.pdc.me.uk/pbpunpacker.php?http://www.pdc.me.uk/pbpunpacker.php http://pspupdates.qj.net/CheatMaster-0-6-Alpha-for- DevHook/pg/49/aid/69666http://pspupdates.qj.net/CheatMaster-0-6-Alpha-for- DevHook/pg/49/aid/69666 http://www.psp-linux.org