psp-1000 /2000custom firmware / hacked firmware

Custom Firmware 5.50 GEN-A Build 4 Released: CFW for the PSP-1000 & 2000

greg | June 13, 2009

Take a seat PSP-3000 owners, this time it ain’t all about you… Released for the PSP-1000 (Fat) and PSP-2000 (Slim) is Custom Firmware 5.50 GEN-A Build 4 from PSPGEN’s own GENyUS.
What you need:

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

What you get:

• All features of Sony’s Official Firmware 5.50http://www.psp-hacks.com/2009/04/21/psp-firmware-550-released/
• 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…)

I just installed 5.50 GEN-A on my Slim and it works beautifully. It’s simple: unzip the archive, copy everything under PSP/GAME/UPDATE to your memory stick, and run the updater from the [GAME] menu.
Props GENyUS; Nice work.
Download: Custom Firmware 5.50 GEN-A (Build 4)
Note: DO NOT attempt to flash or install CFW 5.50 GEN-A on a PSP-3000 or TA-088v3 hand-held. You will render your PSP a useless brick.
- source: pspgen