Programming the Motorola GM360 requires a specific combination of legacy software, drivers, and interface cables. 1. Software: Motorola CPS
Windows 10/11 blocks unsigned drivers (which the FTDI cable or Motorola driver may use).
Programming a radio for transmit requires proper licensing (such as an amateur radio license or a commercial frequency assignment). Always ensure your power levels and frequencies comply with local regulations. To help you get the most out of your setup: Do you need help for a DIY cable?
: Enable Lone Worker mode and Emergency Signaling .
The GM360 belongs to Motorola’s Professional Series, a family of mobile radios that includes the GM340, GM360, and GM380 models. Its robust design and reliable performance have made it a favorite for vehicle-mounted applications, from corporate fleets to emergency services.
Several versions of this CPS exist, with version numbers such as , R03.11.15 , and even earlier builds like R03.05.00 . A crucial point to understand is that the software version must be compatible with the firmware version embedded in your radio. Motorola CPS is generally downward compatible, meaning a newer version can often read and program radios with older firmware. However, the inverse is not true: an older CPS version cannot read or write to a radio that has a newer codeplug. Attempting to do so will result in an error message like “Codeplug not supported by CPS”.
Open Windows Device Manager → Ports (COM & LPT). Note which COM port number your cable is using (e.g., COM4). The CPS will need this later.
Check Device Manager to verify the correct COM port. If a yellow exclamation mark is visible next to the device, download and reinstall the official FTDI or Prolific driver for your cable. 2. "Radio Codeplug Not Supported" or "Region Code Error"
If you try to run this on Windows 10 or 11, you will likely encounter:
Do not bump the cable or turn off the radio during this process.