Green light
Pan Mode
Tilt and roll locked, pan axis follows the movement of the gimbal.
Red light
Lock Mode
All axis are locked.
Blue light
Pan and Tilt Mode
Roll axis locked, tilt and pan axis follow the movement of the gimbal.
Purple light
Selfie Mode
Double press (the interval should be less than 0.5s) Mode Button in any mode to enter Selfie Mode, double press again to exit.