WALKERA Scout X4 code binding, compass calibration and ground station operation

BASIC1: http://www.ehirobo.com/walkera-scout-x4-fpv-gps-brushless-quadcopter.html
BASIC2: http://www.ehirobo.com/walkera-scout-x4-fpv-gps-brushless-quadcopter-basic2.html
FPV1: http://www.ehirobo.com/walkera-scout-x4-fpv-gps-brushless-quadcopter-fpv1.html
FPV2: http://www.ehirobo.com/walkera-scout-x4-fpv-gps-brushless-quadcopter-fpv2.html
FPV3: http://www.ehirobo.com/walkera-scout-x4-fpv-gps-brushless-quadcopter-fpv3.html