Yesterday while driving the control head LED went from blue (protection mode) to solid green. It stayed that way for about 30 minutes, through multiple reboots, then all by itself went back to blue protection mode. While it was green the only function that worked was the power button. No audio, unable to get into menu or change profile. Even tried refreshing the settings with USB stick, no help.

I was getting ready to pull my F1 sensor and send in to AL Priority due to repeated sensor fail messages. Now I'm wondering if there isn't some other problem?