UDI R/C Discovery2, Operation Manual

11

4. After activate the motors, push up the Left Stick slowly to fly up the drone, and
    pull down the Left Stick slowly to the lowest end(Picture 8), then the drone will
    land on the ground slowly.
5. It’s recommended to repeat above Step 4 to practice.
6. Adjust relative transmitter Trimmer button to adjust the rudder if the drone tilts 
    to one side when flying. 

Checklist before Flight

3. Activate(unlock) motors: Move the Left Stick 
    and Right Stick at the same time (45 degree 
    inward) to start the motors and repeat 
    previous step again to lock the motors. 
    (Picture 12)

1. The camera is in front of the drone. Keep the drone front away from you.
2. Power on the drone and check the direction of the rotating propellers. The left 
    front and right rear A propellers rotating 
    clockwise while the right front and left rear 
    B propellers rotating counterclockwise.

Picture 12

www.udirc.com

Calibration Instruction

Please follow below steps to calibrate the drone if the drone becomes imbalance 
after crashing during the flight, and can not be adjusted by trimmer button and 
cause difficult operation.

1. Power off the drone, then turn off the transmitter switch.

2. Turn on the transmitter switch, push the Left Stick all the way down to the 
    lowest position (Picture 13) and then release. The Left Stick will back to the 
    middle position automatically (Picture 14). The transmitter is ready for 
    frequency pairing mode.

3. Power on the drone and put it on a flat surface in a horizontal position. The 
    drone body lights change from flashing to solid bright, which indicates 
    successful frequency pairing.

4. Do not move the Left Stick before successful 
    calibration. Push the Right Stick as Picture 15 
    and then release. The drone body lights flash, 
    which indicates that the drone is calibrating. 
    When the drone body lights remain solid, 
    which indicates successful calibration.

Notice: When the drone is fiercely impacted or crashed, it may cause the gyro can not 
            recover and cause difficult to control, if so, then you need to power off and power on 
            again to calibrate.

Picture 13

Picture 14

Picture 15