How to remove the Network Lock on your Blackberry 9900
in under 60 Seconds

Blackberry 9900 MEP4 Unlock Instructions

Follow these Step-By-Step Instructions. You can also watch the Free Blackberry 9900 unlock video that shows you this step by step guide in video format.


Insert a SIM Card  into the Phone. Make sure that your phone's battery is fully charged.

Power the Phone ON by holding down the End    Key.

Press the Blackberry Menu    Key and Select the Spanner Icon labelled either "Options" or "Settings".





Scroll down to third option labelled "Device"





Scroll down to second option labelled "Advanced Options"





Scroll down and Select the Option labelled "SIM Card"





Now you will see some text on screen. Enter via the Keypad "MEPD"
Do this by pressing   key, key, key key.


Note: When typing over the screen you will not see anything
appear on the screen as you type.





The Display should show "Sim Card: Security Disabled" and should show only "Service Provider" as "Active".


Note: This screenshot is not shown on all firmware versions.
If you don't see this screen - proceed to Step 9.

Proceed to enter MEP4 Unlock Codes to remove "Service Provider Lock".

Now type MEP4.
Do this by pressing and holding down the key permanently and then press  key, key, key and the key


The Phone will prompt "Enter Network MEP Code (? left).





Enter the Supplied "MEP4 Unlock Codes" and select Enter by pressing the Center button.

The Phone will display "Code Accepted".  In case you get a "Code Error", see below.

The Phone will return to previous screen and Display all Locks as Disabled.


Note: This screenshot is not shown on all firmware versions.
If you don't see this screen - proceed to Step 13.




Power down the phone by holding down the Red End Key for 10 Seconds

Insert New Sim Card and Power Phone On by holding down the Red End Key.

Unlock Procedure Complete.




For Code Error

If you receive a Code Error" try the next Unlock code in your list. Do NOT enter any code more than once.