1. Check and triple check you have a hackable PSP that will accept custom firmware flashing without resulting in a BRICKED PSP. Make sure you have a PSP with a TA88v2 or below only + or TAv90v1. If your psp has a TA88v3 or above or is a PSP-3000 DO NOT proceed!!! You will brick your PSP. Do exactly what this tutorial says even if you have a moddable psp, because you might end up bricking your psp. I'm am not responsible if you break your psp. If you follow this word by word then that wont happen. Download the software here
Run the installer and point it to your memory stick pro duo root (First page you see once you open up the memory stick on the computer)
2. If you don’t have PSP official firmware 5.03, get it here. Make a folder called UPDATE in your PSP/GAME folder and place the eboot in there on your memory stick pro duo.
3. Now lets run ChickHEN to have a homebrew enabled environment. In your PSP go to photo then click the ChickHEN photo and wait. If the PSP jams, please retry. If it flashes colours and reboots you have loaded ChicKHEN. Check your system info to be sure it say’s 5.03 ChickHEN R2.
4. Now with your PSP rebooted in ChickHEN go to your PSP XMB game menu and run Hellcats Recovery and install 5.00 M33!!! Your PSP will reboot, follow the instuctions to install PSP Custom Firmware 5.00 M33. After your done you can update to 5.00m33-6
