well i found this forum to late and i'm now sitting on 2.01 firmware. i tried uploading through f@h method using proxy server on my pc (running vista ultimate) and it's working fine.
I managed to install the GT5 Prologue Jap. Demo trough it without any problem.. But i'm having trouble with other demos
Lemmings installed but the activation is giving me an error
Gt5 was installed using my default account (european)
I've now created 2 more accounts (US and JAP) to try another methods
MX vs ATV installed using my US account is not running, it's giving me a validation error
Will post more news when i manage to install and run another games
Correct, unless you have an Infectus Mod installed in the PS3 and dump your own flash files and then upgrade and use your own previously-dumped files to downgrade. That is the only way to do it at this time, and as mentioned if you upgraded already it's too late because each PS3's is unique so a flash dump from my PS3 wouldn't be of use to you and so on.
I tried playing around with this on FW 2.01. I had Ratchet gamedate on the HDD. I started F1 and switched with Fear. Played a bit. when i went to exit the game, you see the please wait then it seems like it´s freesing up, then I get the 3 Beeps and the Ps3 resets itself. When I went to see the Gamedata, it now has the Fear icon.pam video on the Ratchet gamedata. Now if I swap with Resistance the same thing happens when exiting the game.
Not sure why you bumped/posted that here instead of the Newbie section, but no it's not possible without updating your Firmware. Thread from Jan '08 now closed.