Hey everyone I am in the US, Colorado to be exact and bought a M1000 that was supposed to be unlocked to replace my broken A1000 that I had been using on CIngular/AT&T about a year ago. Well long story short it wasn't unlocked. When I switched the Sim cards I got the sim not supported error or something similar.

I put it away in a box because my company gave me a cell but I am ready to get another personal cell account and want to try to unlock my M1000 now for that reason. Any assistance would be greatly appreciated. Thanks,
Matt