[barjohn]

It took a while, but I finally got the instructions on how to unlock the 7100. I received the unlock code from T-Mobile, but the instructions were for a 72XX and would not work on a 7100.

Once you have an unlcok code, do the following:

T-Mobile Sim Unlock Request
Sim Unlock Reference: 0xxxx
IMEI: xxxxxxxxxxxx
Unlock Code: xxxxxxxxxxx

Thank you for taking the time to contact T-Mobile. Below you will see the Instructions for unlocking your Blackberry device.

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

Thank You,

Sim Unlock Department
T-Mobile USA, Inc.

I have corrected the instructions to operate correctly as directed by tier 2 technical support.

It works!! My phone is SIM unlocked. I tested it with an ATT SIM and it worked just fine.