Communications Support Forums

The local DMR machine i sort of take care of was lent out to another ham radio club and the tinkered with it.
Since we have gotten it back the TX light on TS 1 and 2 stay on when nobody is talking. If i key up a radio the lights go out for a few seconds and then come back on.

They loaded a new FW version into the repeater . R02.40.12 and it needs ti have R02.20.12. Is there a way i can downgrade the firmware back to R02.20.12? or is this machine stuck now...
Seems to be the only thing they changed was the firmware and now we have this nice little issue