As far as I know my desire is unlocked from vodafone as it accepts my girlfriends T-mobile SIM. I have a S.Korean SIM on KT Olleh network but when I insert it into the phone it says no signal and every minute or so i get a prompt screen for available networks. One is SKTelecom and the other is KR KTF (Im 99% sure KR KTF is the network the SIM is). However when i choose this option it says "Your Sim card does not allow a connection to this network" Any suggestions on how I could solve this? I am currently running the latest stable version of InsertCoin if this is helpful info.