My slim PS3 is currently jailbroken on 3.41 firmware. I'd like to update it to 3.50 firmware to play games like NFS: Hot Pursuit & Gran Turismo 5.
Once I've finished playing, I would like to downgrade back to 3.41 firmware to continue using the jailbreak. Now, I've read in quite a few places that with slim consoles only, the downgrade formats your internal hard drive.
I have a 650GB internal hard drive that is full to the brim of data, I can't back it all up so is there a way of downgrading a slim console without the hard drive being formatted?
In a nutshell, I want to go to 3.50 and back to 3.41 with all my save data, game data, homebrew and game dumps left intact. Is this possible for a PS3 slim console?