The code provided to you by your carrier is called a MEP (Mobile Equipment Personalization) code and keeps the device locked to a specific carrier until this code is generated and entered on the device. To get the device to prompt you for this code, you will need to insert a foreign SIM card into it.

What is MEP locked?

Mobile Equipment Personalization (MEP) is a GSM feature that restricts the use of mobile equipment to specific SIMs. An MEP code may be used to remove the lock, allowing SIM cards from any service provider to be used in the NETGEAR AirCard modem. Symptoms: AirCard Watcher shows “Invalid SIM” or “Incorrect SIM” message.

What is the network unlock code for Blackberry?

HOLD ALT and type MEP2 (you will not see what you type on the screen. Now you will be prompted to enter the unlock code provided by UnlockRiver.com into your Blackberry. Your Blackberry is now unlocked!

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