PSX/PSOne Fix for Custom Firmware 5.00 M33

Problems (0xFFFFFFFF) with PSX/PSOne games after installing custom firmware 5.00 M33? Dark_AleX with the quickness –

1. Download popcorn.prx (here)
2. Download a tool like PSP Filer or Xplora
3. Flash popcorn.prx to flash0:/kd using one of the above tools
4. Get down

- source: dark-alex

1.50 Kernel add-on for 5.00 M33

Dark_AleX has released his 1.50 kernel add-on for older PSP “fat” units (PSP-1000’s) that are running 5.00 M33. This update allows PSP fat users to run older 1.50 kernel homebrew.

For this update you’ll need to download firmware 1.50 which can be found here

(1.50 Kernel add-on for 5.00 M33 (PSP fat only) : Here