The latest release of the custom firmware won’t be for PSP 3000 users. Finally, someone has taken notice to create a custom firmware for the Playstation Portable 1000 and 2000.

PSPGen’s GENyUS, the creator of the new CFW, released for the PSP 1000 (fat) and the PSP 2000 (slim) his Custom Firmware 5.50 GEN-A Build 4.

Here’s what you need to install the CFW:

• A PSP-1000 or 2000 v1 or v2
• A PSP running CFW 3.52 M33 or higher

And here’s what you can get if you install it:

• All features of Sony’s Official Firmware 5.50
• Launch UMDs / ISOs / CSOs and demos requiring 5.50 or below
• Launch homebrew
• Launch PSOne (POPs) games
• Access to recovery mode (change CPU speed, enable/disable plugins, registry hacks, flash access, etc.)

To install, just simply unzip the archive, copy everything under PSP/GAME/UPDATE to your memory stick and run the updater from the [GAME] menu.

Do not attempt, however, to install or flash the Custom Firmware 5.50 GEN-A Build 4 to your PSP 3000 or TA-088v3 handhelds. The results will not make you happy, believe me.

Download Custom Firmware 5.50 GEN-A (Build 4)