Originally Posted by Daryoon
Go to hacksmods.com. Search for crystal and you'll get some more info.
On boards with a damaged crystal, you usually get like two rapid blink and then the LED stays lit, solid. I remember it does this whether the radio is on or off.
cheers Daryoon, I'll have a look. What I'm getting is rapid blinking while the gyro sets itself (normal) then the slower blinking you get before binding. When I switch the TX on it stays on the slow blink instead of going solid red.