If you can supply your mep code.
1: Press alt, cap and h keys together and hold for a few seconds until a screen appears with "help me".
2: You need the info on the screen "live" to access the code.
3: The bottom of the page (on the supplied link next to "2")is where all the info can be entered by you.
5: Unlocking using Blackberry codes calculator after you get MEP code happens.
6: Go to advanced (spanner) "sim card" and then click on that screen, then type "mepd". This is the screen you enter the code from the calculator on.
7: Point "3" on the link now works from those instructions.
8: Download the codes calculator here. http://www.digital-kaos.co.uk/forums/f53/blackberry-codes-calculator-y3kt-v1-7-1-free-version-279813/
Ive unlocked many BB mobiles/cellphones up to 8520 models(i don't have any newer ones but they do work also.
Any problems let me know.Sometimes things don't work but just restart it all and dont give up but ive had a unlock first time every time on old to new BB,s.