Here are some common issues that may happen

Controller Not Responding

Turn on the radio controller by holding the power button. While the radio is booting, count the "red" lights. (It should be "3" red lights)
If not, follow this:
 

1. Turn off Radio

2. Press & Hold the "BIND" button on the back of the radio while pressing the power button

3. This will change the "red" LED pattern

4. Repeat until the "red" light flashes "3" times

​​

Drone Drifting

If the drift is severe, recalibrating the accelerometer may be needed:
 

1. Turn on the Drone and Radio Transmitter

2. Find the most leveled surface and place drone

3. Move the "left" stick to the [top left corner] and hold + "right" stick to [down] position

4. Lower the throttle stick, arm, then hover

If the drift is still there, fine tune the accelerometer by:

​

1. Disarm the drone

2. Move the "left" stick to the [top] position

3. Using the "right" stick, move the right stick to the opposite side of the drift. For example, if drone is drifting to the left, move the right stick from center position all the way to the right and let it center. Repeat at least 5 times.

4. Lower the throttle stick, arm, then hover.

5. Repeat fine tune until drone is relatively hovering in place (note: the drone will not hold perfect center due to varies reasons as wind, obstacles, prop, frame, motor conditions all play a part)

​​

Drone shoots upward

The common misunderstanding is FPV drones are full manual control of the throttle at all times. Feathering and getting a feel for the throttle response is the fix.
​