Join Date:Joined: Dec 2010
pull out your SIM card and put in an non supported SIM card... if you are locked to metroPCS than anything else like T-Mobile, AT&T etc, doesnt need to be working in service card even..
a box will pop out informing you that a non-supported SIM has been inserted and to enter a code if you want to unlock the phone.
put i the code they send you in the field and press "OK"
this is just a one time thing, once you do that, your phone will remain unlocked even of you factory reset it or update the firmware/OS or you install a diferend ROM.