Had a lot of problems getting it to work. In Sweden on Tele2Comviq network (which is shared with another operator Telia, the one with monopoly here in Sweden).

Latest fw/bb, yellowsn0w install went fine. After reboot (actually a lot of reboots) no connection. Removed and reinserted the SIM card - no action. Turned off PIN, tried again - no action. Turned off 3G - still no action.

Turned flight mode on and off multiple times, have no idea exactly what got it to work but eventually repetitions of something made it work.

When turning on 3G again though, the network changed from S COMVIQ to TELIA. The connection still works though.