How to Unlock an AT&T Blackberry to T-Mobile


Unlocking an AT&T Blackberry for use with T-Mobile, or any other carrier, is a simple way to make your already effective PDA phone more versatile. The go-anywhere capabilities of an unlocked Blackberry means that you can use it anywhere in the world with any carrier service and any type or brand of SIM (Subscriber Identity Module) card. Enjoy the advantages and added flexibility by following a few simple steps to unlock your smart phone.

Things You'll Need

  • Unlock code, purchased online or from a local technician
  • Power off your Blackberry. Remove your SIM card. Power your Blackberry back on. Disable wireless service capabilities.

  • Navigate to "Settings," "Options," "Advanced options." Enter the SIM card menu.

  • Hold down the ALT key. Type the keys "M E P D" without releasing the ALT key. Note that you will not see the characters appear on the screen. Wait for the screen to prompt "Enter Network MEP Code."

  • Type your unlock code and press down on the trackball to confirm. Restart with desired SIM card to verify unlocking.

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