Hey all, new to the forums with this account, was a member long ago. I've been checking the forums on several sites and I am aware that there is another/other threads for yellowsn0w troubleshooting, however nothing has been mentioned about 3 mobile in Aus. I am currently running 2.2, with 2.28 and have installed via cydia. I have followed numerous instructions to get my current 3 Sim working but with no success. I have given it plenty of time to find the network, and actually left it for 45 mins last time to try find the network - just in case. Whenever i insert the sim, or turn off airplane mode (after turning it on as per some user instructions) i get an error message saying "Sim Failure", and "Invalid SIM" appears where the carrier name usually is. Has anyone else come across this? Or been able to successfully get an Aus 3 Mobile SIM to work with yellowsn0w? Any help will be appreciated. PS: months ago i was advised by 3 that if i wanted to put in my 3 sim i would have to get a different one off them. (they have two different coloured sims - one with a gren 3 symbol, one with blue - and only the blue one works apparently.