Did you activate the service and the new sim card for the blackberry or did you just transfer your old sim card to the new phone. A blackberry requires you to activate the new sim card and change your rate plan if you do not have data to get the blackberry to activate.
i just bought a blackberry nextel and something dosent want to work, when i go to manage connection and mobile network is of so i click on it and when i click it it just uncheks by itself again please answer thanks god bless