I have just bought a second hand bb curve 8520 and when i put my sim card in i cannot make or recieve calls or texts, does this mean i need to unlock the phone ? and if so how do i go about this, i am totally new to bb and am at a loss with how to fix this problem, can someone please help !!
Call your provider and be sure the phone is registered with the network and that you have a specific BlackBerry plan. Depending on your provider and the phone you may need to unlock the phone also.
On your BlackBerry, go to Options > Advanced Options > Sim Card.
At that screen type MEPD on your keyboard (the letters will not appear). A new menu will pop up.
Look for Network in the list.
If your device is "unlocked", it should say Disabled or Inactive. If it says Active, it's still locked to that carrier.
