I have motorola c975 unlocked/unregistered to any network and when i put a Cing sim card it allows me to choose between T-mobile and ATT networks manually. My other phone is Nokia 6230 Cingular branded but unlocked to any sim card; however does not allow me to enter Sim Application menu, so i cannot choose network i want manually. Is there some online store where i can get my nokia flashed completely?? Can do this myself by getting cable from ebay and loading some software on line from one of those websites??? thanks all.