CFW 5.50 Prometheus-4
For PSP-1000 & PSP-2000v2 Models ONLY!!!!!!!!!!!!!!!!



Install 5.50 Prometheus by simply copying the extracted archive directory to ms0:/PSP/GAME and running it from the XMB, like any other homebrew. The required files to run 6.20-required games will be copied to the appropriate spot and then you’re all set. Call it 5.50 Prometheus or 5.50 GEN-D4.

note
5.50 GEN-D3 must already installed

i suggest to disable all plugins. use default theme


download

Quote:

5.50 Prometheus-4

all GEN-D3 plugins/themes are working perfectly fine at 5.50 prometheus (thats why it can be called GEN-D4)

Custom Firmware 5.50 GEN-D3




*WARNING* DO NOT INSTALL THIS ON PSP-2000 v3 and PSP-3000 (kung hinde sure better ask noob question 1st, before it's too late)


Minimum Requirements:

A PSP-1000 or PSP-2000 v1 or v2 (hackable PSP's only)
A PSP with Custom Firmware 5.00 m33 already installed


Installation:

Download the 5.50 GEN-D3
Battery 78% loaded
Connect your PSP via USB Mode
Extract the 550.PBP and the PSP folder to the root of your Memory Stick (not MP_ROOT)
Exit USB Mode
Go to your Game Menu and run 5.50 GEN-D3 Quick Updater
Select "Flash Install CFW 5.50 GEN-D3" and Press "X". Start install.. please wait.
When install completed press the "X" button to restart automaticly.. done..
Look at the version > 5.50 GEN-D3
Then you can erase "550.PBP" file and "UPDATE" folder, they won’t be any longer necessary.

Code:

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Changelog:

Compatibility with all known PSN Game/Démo from on 15/12/2009
Compatibility with all known UMD on 15/12/2009
Add ISO SPeed MS loading (Beta version not really tested because we don't have any fake MS)
Network update


Tested games :

Tekken 6
Gundam vs Gundam
Phantasy Star Portable 2
Naruto
J-League Pro Soccer Club o Tsukurou 6 Pride of J
Naruto Shippuden Narutimate Accel 3
James Cameron Avatar The Game
Phantasy Star Portable 2
R-Type Tactics II Operation Bitter Chocolate
Bleach Soul Carnival 2
Battle Spirits Kiseki no Hasha
Yamada
etc.


Download Link: 5.50 GEN-D3

5.50 Gen D 3

credit to BlackCode™

For Official News about GEN Firmwares:

PSPGEN Website (Translated)

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