Problem with Ratchet infrastructure

[AnAutisticDog]

I have a Ratchet and Clank:SM full .cso on my memo stick and when i try to play
on infrastructure it says<loading multiplayer data failed> then i select infrastructure,then the screen goes dim and nothing happens.Ive searched for help but every one says that the wifi is screwed up, but i can play other games
on infrastructure and there is no problem. thank you for any help

B/W: Ive tried it with and without a umd in the drive.The umd is MLB06

[TchuBacha]

People have had problems with this game on custom firmware.

Try changing some settings in the recovery menu so that the PSP boots into the 3.40 kernel also enable "No-UMD" and setting the CPU to 266mhz.

Im not entirely sure if these settings will work. If they dont work then try them again but with "No-UMD" disabled.

[AnAutisticDog]

People have had problems with this game on custom firmware.

Try changing some settings in the recovery menu so that the PSP boots into the 3.40 kernel also enable "No-UMD" and setting the CPU to 266mhz.

Im not entirely sure if these settings will work. If they dont work then try them again but with "No-UMD" disabled.

I will try right now

[AnAutisticDog]

Forgot i have to put the 850mg back on my m/s

No Go I can not get it to work