I dont know what the other guy is doing wrong. I just played MOH which requires 3.42 (thanks to shoeb/shon_91) on Hermes 4b following this method:
Originally Posted by aayman_farzand
"Edited SFO to 3.41, FTP'd to internal
Installed the update, ran Gaia, selected MemPatch and chose the game via the XMB with a disc in drive. Tested, Castlevania and many others, without any disks (thanks to hermes 4b). This chip is just fantastic for 2000 bucks (not 2200 like the OP said, he needs to work on bargaining ). It allows to do the most basic which is to load any custom payload, as long as Hermes/Kakarot's.... keep throwing out payloads we can just flash and try it. I had trouble using PL3 though, couldnt get the game to load and had constant problems (maybe I had the old ver.), in any case Hermes 4b just did the job. I am using Gaia Manager 1.03 just in case anyone else were wondering. This has been one of the best investments I have made till now!
Hermes 4B only though, didn't work with PL3 though."