The GP series of radios are locked to a specific region code by the CPS. Meaning you can’t program US radios with an Australian CPS, for example.

The lock is in the CPS, not the radio, and there’s a registry workaround:

1. Install Motorola CPS
2. Reboot machine
3. Open Regedit
4. Go to HKEY_LOCAL_MACHINE -> SOFTWARE -> Motorola -> ProRadio -> FSK
5. Edit the string called “SerializedString“
6. Replace data with
   @%&MAHUS
7. Open CPS software

Now you can program it regardless of region.