If people tell you your audio sounds quiet or muffled, check your Wide/Narrow settings. If you are transmitting on Narrowband (12.5kHz) but your mic gain is set for Wideband (25kHz), your audio will be too quiet. Always match the bandwidth to your license requirements.
The software doesn’t just configure the radio—it awakens it. Without the correct handshake sequence (power radio, open software, select COM port, read device), the GM950 Plus remains a mute, deaf brick. motorola gm950 plus programming software top