Problem with MMMv1 (plz help!)

[loa]

Hello,

Been having a lot of fun with my basic set-up (converted Revo, MMMv1, 9XL, running on 2X2S 8000), until I readjusted the Lipo cut-off.

After a no-incident bash yesterday I set it at 12v.

Now I can't get it to work properly. Once the batteries are plugged, the steering works, but the motor doesn't turn at all.

Thing is, I'm not geting the solid yellow led when idle. (Nor does the MMM beep if I don't send it a signal for a while.)

The green and red leds light up when I use the throttle, but the motor won't turn.

I recalibrated the ESC successfully: no change.

Any ideas?

Thanks

Loa