Resolution for Error Codes 120- through 129-
Error codes 120- through 129- occur when the monitor is being used with external or third-party software. If you receive this error, you should update the monitor firmware. With the exception of Concept2 ErgData, this error could also indicate a problem with the third-party software and not the monitor. If updating the monitor firmware does not resolve the issue, please report the problem to the software vendor.
For instructions on how to update your monitor firmware, please visit the appropriate page: PM3 | PM4