Possible reasons Spektrum receivers won't start up

AS3X Related
• The plane control surfaces are not at center as in when you have Flap/Crow/elevator comp active.
• There is excessive trim on a control surface.
• The plane is not on a level surface(Not all receivers).
• The airplane is not stable. Wind shaking the plane can stop the gyro from initializing. I have found that with my AR8360T receiver, I cannot hold the plane still enough to have it start up. The plane must be on the ground.

RF Related
• The receiver is not bound or has lost it's bind to the transmitter.
• Bind plug was left in the receiver.
• The Bind plug is plugged into the wrong port(very common on AR9350's)
• The transmitter model is bound to a different aircraft.
• The receiver battery is dead.
• The transmitter is too close to the receiver(4 feet minimum).
• All required satellite receivers are not installed and bound.
• The satellite receivers are plugged into the wrong ports.
• One of the bound remote satellite receivers got disconnected.
• Don't try to connect to your receiver in a poor environment, such as a metal shed,
or on bleachers, or in the back of your pickup truck, or with the antennas against the ground (common glider mistake).
• Your transmitter(iX12 & iX20) automatically placed itself into "Tx Auto Sleep".
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