BlackBerry 10 – Go to Settings, then select Advanced. Tap Hardware from the dropdown menu that appears. Your IMEI number will be listed in the window. BlackBerry 6 and 7 – Click Options, and then click Device. Click Device and Status Information to find the IMEI. BlackBerry 5 and earlier – Click Options and select Status. Your IMEI will be displayed. [1] X Research source

Be sure to read reviews for third-party services to make sure that the company you are paying is legitimate. You will need to provide your IMEI number when you request your unlock code. Receiving your code could take up to 3 days, but usually happens within a few hours.

You have 10 tries to enter your code or your phone will be disabled.

Open the SIM Card menu by opening Options, selecting Device, Advanced System Settings, and then clicking SIM Card. Type “MEPD” while in the SIM Card menu. A new menu will appear after you finish typing, and Network should show as Active. 71xx, 81xx, and 91xx model users will need to type “MEPPD”. Type in “MEP[Alt]2”. If nothing happens, try typing “MEP[Alt]4”. You need to press the Alt key to enable typing numbers. 71xx, 81xx, and 91xx model users will need to type “MEPP[Alt]2” or “MEPP[Alt]4”. Enter your unlock (MEP) code. You have 255 tries to get it right, so don’t mess it up! Once you’ve unlocked the phone, you can insert your new SIM card and re-enable your network connections.