....and make sure that rudder trim is in the very center. Gyro will not initialize with the rudder trim off center....If you have the stock rate gyro, the switch on the TX will do absolutely nothing. You need to have an HH gyro with the servo plugged into the gyro, the 3 wire plug from the gyro plugged into channel 4 and the single wire on gyro plugged into channel 5....Now the switch will work!! HH mode is down, rate mode is up!

Z