Moments ago KaKaRoTo, the developer behind the PL3 payloads has announced the creation of the first v3.55 CFW, the following video shows what it is, although it is from an older beta CFW.
PS3: First ‘Custom Firmware’ now working!
[ame=http://www.youtube.com/watch?v=m1ZwOW3IByA&feature=player_embedded]YouTube - PS3 3.55 with category_game_tool2.xml[/ame]
News Source: PS3: First ‘Custom Firmware’ now working! (via) KaKaRoTo's BlogOriginally Posted by kakaroto
To save you time masterchan777 was kind enough to create a 3.55-CFW (thanks to tools released by KaKaRoTo) and has include the latest fixes from KaKaRoTo using his second released OFW to CFW changing firmware script code.
More info and updates about this CFW can be read from KaKaRoTo's blog, please check it out before installing, and please READ this WHOLE thread, to understand how basic and simple this CFW is, and that it really does not offer much to the PS3 end-user yet, and is more of example that it is now possible!
3.55-CFW-V1.2 Link: Link: PS3UPDAT.355Cfw.KaKaRoTo-1.2.pup MD5 : 769399A3C64BEBCC4740BD0A9D2C7973
NOTE 1: You can install v3.55 signed packages with this without dongles and get on PSN (for now)
NOTE 2: I would NOT currently recommend installing this CFW for anyone without the official 3.55 installed, I'd wait for more testing to be done
NOTE 3: Only 3.55-signed pkg files will install with this and only 3.55-signed code will run
NOTE 4: Updated to v1.2 with the latest fixes to game_tool2.xml
WARNING: There has been reports of 'damaged game saves' and 'trophies', as with all new custom firmwares, please understand the risks of installing anything like this on your PS3 console!
Credits : KaKaRoTo, team fail0verflow and geohot