Check the label on the bottom of the radio for the full model number and current firmware version.
The Motorola GM338 is part of the series (Warrent/Waris family). Unlike modern MOTOTRBO digital radios, it uses a legacy version of the Professional Radio CPS. Check the label on the bottom of the
Ensure your Prolific or FTDI cable drivers are installed before opening the CPS. Check the label on the bottom of the