1. Turn on your phone with a SIM Card not from the original network, IE It's not locked to.
2. Go to Menu and select 'Phone Tool' or 'Phone Application'
3. Enter using the Virtual Keyboard the following: * # * # YOUR_CODE_HERE #
4. Select with pen 'Number', the phone should now show it's unlocked.
Option 2 - Model: Treo Palm 600
1. Turn on your phone with a SIM Card not from the original network, IE It's not locked to
2. Enter the Unlock Code provided.