CFW 5.50 Prometheus Released: For PSP-1000 & PSP-2000 Models

[nickxab]

liquidzigong did it again :)
He released CFW 5.50 Prometheus, respect :knock:

WARNING: if you have a game save from a patched game and you want to run the original unpatched game on CFW 5.50 Prometheus; that save most probably will be corrupted, don't try it! Back-up the save first. You can use sgdeemer on the save, but i'm not sure how to fix the save with that prog. If someone does please let me know, thanks.

TRY IT AT YOUR OWN RISK, DON'T CRY IF YOU MESS UP!
UPDATED: unfortunately there's no changelog, files seem to be identical.
I case of problems you can go back to D3, just by running the D3 installer again.

[Original] PSP1000/PSP2000 non-v3-made custom firmware: CFW 5.50 Prometheus
Features:
It allows you without any modules, plug-in situations like the game to run 6.20. Procedures have been in the PSP-1003 & PSP-2000 on the test successfully.
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Installation:
Warning, 5.50 GEN-D3 user installed may not be able to read the original SAVE.
In fact, this is a bug in 5.50 GEN-D3, 5.50 Prometheus and 5.50 GEN-D2 SAVES are compatible.
Before installing use sgdeemer to decrypt the save, after installation you can use sgdeemer to read the decrypted file back.

First, install 5.50 GEN-D3, however, download the package installation accessories. After successful installation, you can note the version number of the system into a 5.50 Prometheus.
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Games that are tested and work without patching:
KHBBS
MGSPW (Prologue do not crash)

Doesn't work:
patapon 3 DEMO

Thank GEN Team. This version of the vast majority of files from the 5.50 GEN-D3, you can call it 5.50 GEN-D4.

If you want to fix broken save data just use this guide: [GUIDE] How to fix any corrupted PSP game save file

Download
Source

[cmbeke]

nice, no more patching . If you want to fix broken save data just use this guide: [GUIDE] How to fix any corrupted PSP game save file

[nickxab]

I will add the link in the first post too. ;)