WARNING! This custom firmware is still a work in progress. DO NOT install this custom firmware without having a backup of your PS3 NAND/NOR and a hardware flasher. PSX-Scene is not responsible should you ignore this warning and brick your console.
If you have not read the above warning then stop reading until you have. French developers, SGK Team, have released their custom firmware. This custom firmware, as stated in the title of this article, is a work in progress. Based on Rebug's 4.21 REX CFW it includes OFW 4.30 keysets, something which the recently released Rogero 4.21 CFW v2 has. Also noted is a 4.31 spoof to allow access to PSN, provided the pass phrase does not change in the foreseeable future.
About SGK Team CFW 4.31.1:
Hi all, What's better than coming back with this kind of news! Our friend and SGK developer releases today the result of hard work. Indeed, in the shadow he worked to bring us a CFW with features interesting and not yet seen the new CFW 4.xx. The basis of this is based on the CFW Rebug 4.21, which is the REX CFW most stable and most successful of the moment.
He added the Debug menu and Rebug Package Manager for our greatest pleasure. Some files from firmware 4.30 which ensures compatibility for the latest keysets. So you can play your backups favorites without a patch or fix. 4.31 is a spoof includes access to PSN and avoid unintended updates.
PSN Access
Debug menu displayed in setting
Rebug package added
Implementation of parameters Rex 4.21.1 Rebug cfw
Lv1 Lv2 and recompiled.
Patched Peek & POKE
Coldboot replaced
Replaced coldboot game
Theme from watch dogs dynamically replaced
More corrections ...
Testers and developers: consolehackdev ; SGK_84
FUENTE:
http://psx-scene.com/forums/content/sgk ... ress-2749/
lo digo por la fuente, que no está bien puesto el enlace 