Troubleshooting 79TroubleshootingChecking the version of your radioYour radio provider may ask you for the hardwareand firmware version of your radio, fortroubleshooting purposes.Using the Main menu1 Press Menu and select Radio info > Version info.2 Scroll to the version information you want to viewand press Select.Using the PTT key! Hold down the PTT key and turn on the radio.The firmware and hardware versions, and yourradio’s frequency band may be briefly displayed.Removing the microphoneNote: For information on installing or removing yourradio from a vehicle, refer to the TM9100 InstallationGuide.1 Using your thumb or forefinger, lift up one of thecorners of the microphone grommet and firmly (butgently) pull that corner until the seal comes awayfrom the cavity.Caution: Remove the grommet carefully as it servestwo important functions. Firstly, it prevents damageto the microphone socket due to movement of themicrophone cord, and secondly, it ensures that thecontrol head is sealed against water, dust, and otherenvironmental hazards.2 Repeat to expose another corner.3 Pull the exposed corners back and slide the grommetup the cable to reveal the microphone plug.4 Remove the plug from the microphone socket.microphonegrommet