[jmack]

I changed service providers and my new sim card doesn't work.It says invalid sim.I have an unlock code but the phone doesn't prompt for it.I'm wondering if a locked phone is the problem

[NJBlackBerry]

Yes. The locked phone is the problem. BlackBerrys do not prompt you to enter the unlock code. You have to get to the correct menu to do so...

NOTE: If you receive an error message while performing the instructions below, stop. Please be aware that if an excessive amount of incorrect attempts are made, the phone will be permanently locked. Verify the IMEI by pressing *#06# and submit a new request.

Warning! The Wireless Mode MUST BE OFF before performing the given SIM Unlock instructions in order to avoid causing the device from becoming defective.

How to turn Wireless Mode Off:
1. Scroll to the Airplane Icon (Turn Wireless Off.)
2. Press Select.
3. Wireless Mode will turn off.
4. REMOVE the SIM card
5. Power On the Device (Put the Battery back in)

How to SIM Unlock the device:
1. Go to the "Tools" screen
2. Select "Settings"
2. Select the "SIM Card" option
3. Type MEPPD
4. It should then display a list "SIM, Network, Network Subset, etc..."
5. To select "Network" type MEPP Alt-2
6. It should then ask for the code
7. Enter the unlock code

[jmack]

thanks alot my phone now works.