I flashed SNAPSHOT r22400-1558bbd116 to this device last night and it's working perfectly. The LED configuration needs work. I can only control the two amber LEDs and the blue power LED. The blue wifi activity led is constantly flashing and I wish I could disable this however this LED is not listed in /sys/class/leds
/sys/class/leds# ls
amber:wan amber:wps blue:power mt76-phy0 mt76-phy1
Need a new entry here for blue:wifi or blue:activity. The mt76-phy0 and mt76-phy1 are for the switch ports as far as I can tell.