Maybe you could add stuff about cex2dex? Especially now that
this has been released meaning the whole process can be done from Game OS.
Also, you should mention that after downgrading, you must dehash your PS3 before installing a regular CFW (i.e. any CFW other than E3 and Rogero), or OFW. When the PS3 is updated, the "syscon" values are updated. When it's downgraded again, they stay updated. OFW or regular CFW will brick with updated syscon values. E3 and Rogero are patched to skip the check. "Dehashing" restores the values to what they should be for 3.55. There are two ways; QA flagging or using Factory Service Mode to reinstall 3.55 twice. I don't know much more than that, but I'm sure a little googling should turn up something (if I remember tomorrow, I'll try and post some links). [here's one for now:
http://www.ps3crunch.net/forum/threads/ ... #post45938 - QA flagging method I think]
Dehashing is also required I believe when going from dex2cex (but not cex2dex). In other words, when going to dex2cex, you must install either E3 or Rogero 3.55 CFW, and then dehash. [more info:
http://www.ps3crunch.net/forum/threads/ ... #post46428] EDIT: Actually, it may not be possible to do dex2cex without bricking. Apparently you can't install a CEX PUP from the XMB after converting from dex2cex, and turning off the PS3 will prevent it turning on > possibly service mode can still be used, in which case installing E3/Rogero should be possible.
Just a few suggestions, feel free to ignore them