I have a Samsung Galaxy S2X SGH-989D that I bought recently from Koodo. It's been unlocked, and I'm trying to switch over to Mobilicity, but so far I haven't had any luck. Since the phone is the exact same model at the Telus/T-Mobile variant, I thought there'd be no problem. When I put in a mobi sim, it finds the access point, but will not register on the network. Even when I dial *#*#2268#*#* and select 1700 as the preferred band, it still will not register. I haven't ported my number over yet, I've just done trials with other people's mobilicity sim cards. All the Mobilicity sales people I've talked to seem to think its a some kind of lock that is built into the Koodo version. Has anyone had any experience with this, or is there another compatibility issue I'm overlooking? Any help would be greatly appreciated.