MOUNTING: Your gimbal features a universal spring-loaded smartphone clamp. To mount your phone simply spread the clamp apart and place your phone into the clamp. Adjust the phone's position vertically so the phone is evenly centered in the mount. Optionally you can loosen the adjustment knob on the back of the clamp and rotate the clamp 90 degrees to mount your phone in a portrait orientation for live video.
BALANCING: It is critical that you balance the roll axis center of gravity for the best performance. First (1), loosen the Roll (Y) Axis Thumb Screw to adjust the center of gravity by sliding the horizontal arm until the smartphone stays level and vertical on the tilt axis. Then (2), tighten the Thumb Screw after the smartphone is level to ensure normal operations.