How do I determine if my BlackBerry is "unlocked"?
From BlackBerryFAQ
To determine if your BlackBerry is "unlocked" for use on carriers other than for which it is branded:1. On your BlackBerry, go to Options > Advanced Options > Sim Card.
2. At that screen type MEPD (see note below) on your keyboard. A new menu will pop up.
- If your BlackBerry has a SureType keyboard (71xx and 81xx devices) you will need to double-tap the P, so the actual keys entered become M E P P D.
4. If your device is "unlocked", it should say Disabled or Inactive. If it says Active, it's still locked to that carrier.
Images of Locked Device
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Images of Unlocked Device
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