Buttons Not Working Symptom One or more of the buttons on the monitor face (usually the Menu|Back button) do not work. Resolution This is a hardware issue, usually caused by corrosion on the circuit board. The PM must be replaced. Battery Issues Broken USB Jack Buttons Not Working Cannot Update Firmware Dead Monitor/Vertical or Horizontal Black Lines Error Codes Fluttering Lines on Screen LogCard Issues Missing Lines of Data Monitor Only Works When Rowing/Skiing Monitor Resets to Zero or Freezes While Rowing/Skiing PM4 Firmware Known Issues Stuck on Zero Problems Using the iConnectConcept2 Cable
