Will my T-mobile sim card work in a cingular blackberry?

[Chris Z]

I have the T-mobile tap, but I am getting a Cingular blackberry, will my sim card work in it?

 

[Unregistered]

HI no your cingular blackberry mobile wont accept t-mobile sim until you unlock it ..You can easily unlock your Blackberry mobile using sites like UnBBlock.com here they render unlock code for all blackberry mobile models at reliable cost ..After unlocking it you can freely use it with t-mobile or any other GSM sim ...