Open Odin & use this Agat's Recovery Link: AGAT_v0.6.8.tar
you need to explain this part please, cause i just soft bricked my device i can still get to odin so im safe but still would be helpful to know how to flash this correctly....
EDIT: never mind i didn't soft brick it just wouldn't boot past the Galaxy SII logo but i did get it to AGATs recovery and the rest is history (im running PA). but i think you should have said you needed PDA box checked and have the auto-reboot and reset time boxes checked. I'm new to using ODIN and I'm sure a lot of others are too. I think the ROM link needs to be updated to the one with the working MMS >>>>> [ZIP] MMS FIX FOR CM/AOSP/AOKP (THANKS wolfu)
and the 3G fix should be added >>>> the EG30 modem on this page >>>>> http://forum.xda-developers.com/showthread.php?t=1352310
and how to flash said modem. im not trying to be rude i just think this guide needs to be updated so we all don't have to spend hours googleing all this. cheers