How to Enter Unlock Codes on Airtel Blackberry Curve 8520 (INDIA)

Following are the instructions of How to Enter Unlock Codes (mep codes / imei unlock codes / network unlock code / subsidy code) on Airtel BlackBerry Curve 8520 buy from India
http://blackberryimeiunlockcode.net prefers that you have a fully charged battery
 

1. Turn on your Blackberry Curve 8520 phone with your current network/service provider’s SIM card.
2. Using the menu go to Settings Menu -> SIM card and press select
3. Type ‘MEPD’ (NOTE: you might need to type in caps, also letters will not appear on-screen but you will be presented with personalization screen, that will display 5 locks such as network, service provider etc)
4. Type ‘MEP2′ (NOTE: user will be prompted to enter MEP code, if you don’t have unlock code for Curve 8520 you can get your unlock code here)
5. Enter the MEP2 code (CONFIRM you get “Code Accepted” message)
   • *If you also have a MEP4 code, type ‘MEP4′ (you will be prompted to enter MEP code)
   • Enter the MEP4 code (CONFIRM you get “Code Accepted” message)
6. Reboot device by pulling out the battery
7. Device is now unlocked

That's it! your device is ready to be used with any GSM carrier worldwide
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