Originally Posted by tsac
you did not mention the Carrier but a BB is generally useless except for the phone without a data plan. If your old phone SIM was for a standard cell phone and now it stopped working the carrier may have updated the device number in the records. some dont but some do.
What is a data plan? How is it reset??
I have tried rebooting and resetting the device. What do you mean by updating the device number? My carrier says there is no problem at their end as the SIM work in my works in my other mobile.