Unlock security code on blackberry 8830

I think my boyfriend is cheating. he has his blackberry 8830 on lock. I do not have the code. How would I unlock it??

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Instructions to Unlock BlackBerry 8830

1. Insert a SIM card to your BlackBerry 8830
   
2. Make sure all the connections are off(WIFI and Radio signal), Go to "Manage Connections" > "Turn All Connections Off"
   
3. Go to "Options" (or "Settings" > "Options") and then select and press the "Advanced Options"
   
4. From the "Advanced Options" menu select and press the "SIM Card" selection.
   
5. On the SIM Card screen type "MEPD" (you will not see what you are typing).
   
6. Then, type"MEP2" ("MEP4" for some networks). hold the "ALT" key for the number while typing it like this: MEP-hold ALT-2. (it will not show on screen)
   
7. A screen will show, then type the unlocking code for your BlackBerry 8830 and Press "Enter".repeat steps 5-6 if you dont see the unlocking code on screen when you type it.
   
8. You will see a message: "Code Accepted", in case you get error message try to use other code in the same way.
   
9. Restart your BlackBerry 8830, turn the connctions back on. ("Manage Connections" > "Restore Connections") - Your BlackBerry 8830 is now unlocked!