udir/c U842-2, Manual

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Please buy the new motor to replace the damaged motor.

2. Replacement of Motor

Step 1: Remove the four screws form the

            LED lampshade and motor holder.

Step 2: Remove the two screws from

            the damaged motor and replace

            with a new motor, then lock all

            screws. 

Replacement of Propeller and Motor

Please use the attached new propellers to replace the damaged propeller. 

1. Replacement of Propeller

Remove the damaged propeller’s screw and install

the new propeller and lock the screws.

Note: Ensure replace damaged Propeller A by new Propeller A, and
         replace damaged Propeller B by new Propeller B.

Note: Ensure that CCW Motor for Propeller A and CW Motor for Propeller
         B, or the drone can not fly.

High / Medium / Low Speed Mode

Press the High / Medium / Low Speed Mode button of the transmitter. 
The transmitter will beep once for Low Speed Mode, twice for Medium
Speed Mode, and three times for High Speed Mode.

High / Medium / Low Speed

1. The Altitude Hold Mode is available only when the Throttle (Left Stick) more than

    40%. The drone will exit from Altitude Hold Mode automatically if you pull the

    Left Stick to the lowest position.

Notice:

2. When you exit from Altitude Hold Mode, make sure the Throttle (Left Stick)

    position is similar to the position before entering Altitude Hold Mode. Or the

    drone may fly up or down suddenly after exiting from Altitude Hold Mode.
3. The LED lights will flash rapidly if the drone in Heading Hold Mode and Altitude

    Hold Mode at the same time.