I decided to make a list of the tested PS3's that are supported and not supported by Rogeros CFW to prevent more bricked consoles. Feel free to add or update this list.
Do not install on this models:
CECH 2502B (*this may or might not be safe so proceed with caution)
CECH-2504B (*this may or might not be safe so proceed with caution)
Safe to install on this models:
CECH-2004B (*possible bricks)
CECH-2504A (*possible bricks)
Installed from TB CFW to OFW 3.55 and then 4.21 CFW)
CECH-2501A (*possible bricks)
CECH-2508B (*possible bricks)
CECHE-01 (From Rebug 3.55.2 (+latest spoof) to OFW 3.55 from recovery and then to Rogero 4.21 CFW from Recovery)
Models over 3XXXX are not cracked or tested, yet.
EBOOT resigning tool: http://letitbit.net/download/84616.8...igner.rar.html
(*it resets your EBOOT modifications for 4.21FW)
Here are the 4 main reasons of bricking:
Installing CFW 4.21 Rogero on a PS3 with True Blue CFW.
Installing from the XMB while it is recommend to do that from the Recovery Menu. (If you don't know how to enter a Recovery then u shouldn't even do the whole operation)
3. Downloaded file with a bad MD5 hash.
4. PS3 was previously or is downgraded.
What can you do to fix this?
Be patient and wait for the next release of the CFW!
THE INFO MIGHT NOT BE 100% CORRECT SO PROCEED WITH CAUTION! BRICKIN YOUR CONSOLE IS ALWAYS POSSIBLE!
ME OR PS3HAX IS NOT RESPONCIBLE FOR ANY BRICKED CONSOLES! YOU HAVE BEEN WARNED!
Lots of people are asking about their own consoles if it's safe or not to install a new CFW. I or any other user here can tell you that. It is always possible to brick your console... ALWAYS! What you need to do is just to be patient and wait for the better functional release. Do what I did... Install OFW 3.55 and then Full Format your PS3 HDD (make sure to backup your files first). That way you make sure every customazation is gone. Then after that just wait for better release of the new CFW, play games on PC or something.