nokia 3650

[windex]

I have both a nokia 6800 and a nokia 3650 both ... i have a tmobile sim and a cingular sim... my tmobile sim works in both mobiles however my cingular sim only works in my 6800 great signal... my 3650 has no service with the cingular sim... anybody have anyclue why this would happen... fyi the 6800 is from at&t and the 3650 is from t-mobile

[Gee]

You might need to unlock 3650 post imei in dct4 codes section with the network its locked on to in your case its t-mob someone will give you code to unlock

[windex]

gee thanks for the suggestion but my 3650 is already unlocked... sorry i failed to mention that... I actually work for cingular tech support and decided one night to make a call to the data group... these guys informed me that it may be a frequency issue.... esp since cingular is selling the 3600 and not the 3650...