Originally Posted by StriderVM
I jumped firmwares (hehe) to DEX 4.11 since I already got it from Captain's CEX to DEX tutorial.
I can confirm that this method works. I used an 8GB MicroSD with with a card reader and used Ultimate Marvel VS Capcom 3 and installed the PKG update extracted with PKGView and compiled back again with PSN Package.
Interestingly, the PS3gen application changes the param.sfo to require at least a 3.6 firmware. Does changing the param.sfo (Impossible due to the unique BDEmu filesystem?) will affect backups running in DEX's lower than 3.6? Sorry for the noob question that requires an obvious answer, but just wanting to be 100% sure.
You could change the param.sfo to require 2.60 FW but it won't run because the Eboot has the 3.60 + keys. If you meant for 3.55 games im sure they won't run if the param.sfo is higher than your firmware.