When attempting to fly, if your quadcopter drone immediately takes off at weird angles, flips, or is uncontrollable, please read on. You possibly don't understand the importance of initializing your gyros. Before you take to the air, you must first initialize the gyros on your quadcopter so that it understands level flight. You must also link (bind) your transmitter with your quadcopter so that it follows the commands from your transmitter. Finally, once in the air, you may do some additional tweaking (trimming) so that the copter can achieve a steady hover. The following process is common for most of the low-cost starter quadcopters. Hobby grade models may utilize a different process.Initialization Steps (Extremely Important Steps Before Every Flight)
1. Insert the battery into your quadcopter, but do not connect it just yet.
2. Place the quadcopter on a flat level surface. It is very important that the surface be level, as a tilted surface will create errors to the initialization of the gyros.
3. Connect the battery with the quadcopter flat on the level surface. Another option is to connect the battery while the quadcopter is being held in your hands, but IMMEDIATELY place the quadcopter on a flat surface after connecting. Most quadcopters provide a few seconds after connection before the gyros start to synchronize. Remove your hand and let the quadcopter remain motionless for about ten seconds. This gives the gyro stabilizers time to initialize and set themselves to the level surface.
Binding the transmitter to the quadcopter's receiver
After the gyros have initialized, you will now link your transmitter controller with your quadcopter. This process varies between models and manufacturers. But again, for the cheaper models it may be as follows.
3-axis quadcopter binding
Simply turn the transmitter on, and wait about 7 seconds. It may beep repeatedly, and then end with long beep. This signals that the transmitter has binded with the quadcopter.
6-axis quadcopter binding
Turn on the transmitter. Then increase throttle from 0 to full throttle, then back to 0 throttle. You should hear a beep signifying that the transmitter has binded with the quadcopter.
Bring the helicopter to hover a few feet above the ground. With your hand off the cyclic controls, observe for any drifting right or left forward or back. Ignore any drifting that you feel may be caused by the wind.
If the quadcopter drifts backwards, repeatedly press the pitch trim button forward until the drifting stops. Repeatedly press the pitch trim backward if the quadcopter drifts forward until the drifting stops.
The same process goes for roll control. Repeatedly press the roll trim right if the quadcopter drifts left, and the opposite if it drifts right until satisfied with the hover.
Yaw trim can also be applied, but usually the yaw gyro is pretty accurate as it is less dependent on the level surface and more on keeping the quadcopter steady during initialization.