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How To Fix Drone Flips Upside Down Only In Angle Mode?

The weather is perfect, the birds are singing, and your drone is ready to fly. The drone will lift off as you increase the throttle and then crash. It’s amazing!

There are many reasons this can happen, and each has an easy explanation. A miscommunication between the flight controller and motors is the most common reason for drones instantly flipping over after take-off.

What is the cause of miscommunication?

  1. Firstly, a quick crash course on flight controllers. Flight controllers receive input from the pilot and transmit it to the motors. PID is a part of the flight controller software. PID stands for Proportional, Integral, and Derivative. It uses data from the drone’s sensors to calculate the speed at which the motors should spin for it to achieve the desired speed. It does this by comparing the measured values from the drone’s sensors to the desired values set by the pilot. The difference is deemed an error by the pilot, who takes corrective actions. This measurement/referencing loop happens constantly. Many racing drones PID loop thousands upon thousands of times per second. This loop can be tuned and is known as PID Tuning. Now, let’s fix the flip.


2. It is possible for the motors to not do what the flight controller software PID commands them. This can lead to major problems. The PID will attempt to correct the error and communicate with the front right motor to accelerate. This creates a feedback loop that snowballs until one motor is on and the other is off, and the drone flips. This can happen in just a few seconds.

3. Flipping can also happen when the motor spins in the opposite direction. The motors should spin in opposite directions.

4. Another reason could be The orientation of the flight controller. The installation of flight controllers cannot be done in any direction. Most flight controllers have an arrow on them indicating their intended orientation/direction. This diagram (Fig A) shows how to solve the three previous problems. Your drone may be flipping 90% of the time because it does not follow this diagram. It’s the drone orientation guidebook as a picture. It illustrates how flight controllers assign motor numbers to their installation direction. This information is crucial as it tells PID which motor is CCW, which motor is CW, and where they are located.


Motor 1 – The right-back motor spins the CW.

Motor 2 – Front right motor spins CCW.

Motor 3 – Back left motor spins CCW

Motor 4 Front left motor spins CW.

5. Most flight controllers follow this orientation. If this is the case, you can check with the manufacturer. Or you can verify the orientation using a GUI. Most flight controllers include a GUI (Graphical User Interface Software). See Figure B. This allows the user to view the orientation of their drone live. You can also tilt the frame forwards to verify that the 3D model displayed in the GUI is correct. Betaflight can be downloaded and is compatible with most flight controllers. Contact the manufacturer for information about a GUI that works with your flight controller. You can also check the direction in which the motors are turning manually. REMOVE THE PROPS and turn the drone on. Slowly push the throttle to get the motors started. Now, arm it and take a look at how they are turning. (See fig A).

Prop installation

Propellers that are not properly installed will usually cause an instant flip. However, it is a good idea to double-check.

Make sure that the CW Props and CCW Props are correctly installed.

The prop’s topside usually has a glossier finish than the bottom.

Ensure that the bolts holding the props are securely fastened to each motor. If a motor’s prop isn’t tightened correctly, it could cause a flip.


Wiring issues

It can also cause flipping if the drone is not wired or built correctly.

A motor that is wired backward can cause it to spin in the wrong direction.

Check the wiring diagram to ensure that the ESC signal wire connects to the correct FC output.

Motor Short

A motor screw longer than expected could also be touching the motor windings. This can lead to an electrical short that could cause problems when the motor is turned on.

GUI Software Tests – NOTE: Some Flight Controllers require the battery to be plugged in in order for the receiver to function.

There are many benefits to using a GUI like Betaflight. You can adjust the Flight Controller settings and view the 3D model, as described above. If they are incorrect, it can lead to a flip. Most settings can be fixed easily.

Turtle Mode- This mode allows the user to flip backward after a crash. The Transmitter will normally have a switch that allows the user to flip the drone. Once the drone is flipped, the user can reassemble the drone and use the pitch/roll sticks to flip it over. To check if the switch has been turned on or disabled, go to Betaflight’s Settings. You can set it in Betaflight’s Modes section. It can cause problems if the turtle mode settings are not correct. Before you try to adjust the settings, make sure it is turned off.

Recipient – Betaflight’s Receiver Tab should be checked to ensure that the Throttle Yaw, Pitch, and Roll bars are moving in the correct direction. These channels are assigned values ranging from 1000 to 2000. They should read 1500 when the sticks are in the middle. This is important as your drone will take off and be pulling in a particular direction if you have the trim set incorrectly. If you have more pressing problems than a drone drifting, see Why does my drone drift? And How to fix it.


The throttle values will increase as the throttle stick moves higher. As the throttle stick lowers, the throttle values will decrease.

The yaw value increases as the yaw sticks move right. The yaw sticks move left, and the yaw value decreases.

Pitch values rise as pitch sticks move up. As the pitch stick moves down, pitch values drop.

Roll values rise as the roll stick moves to the right. Roll sticks move left, and roll values drop.


Acro mode and Self-level modes are common for drones. If the pilot does not provide input, the drone will automatically level itself in Self-level mode. This mode is useful for beginners. However, most FPV drone pilots fly Acro mode. Acro mode allows them to avoid fighting against the FC and has smaller, smoother inputs. Acro mode is the best way to test the accelerometer and determine if it needs to be calibrated. This will disable the Accelerometer. You can resolve the flipping problem by switching it to Acro mode. This will reduce the need for the Accelerometer.

Ru is an entertainment nerd who likes to spill the beans about what's happening in the entertainment industry. She comes up with well-researched articles so that you can "Netflix and Chill." Come join her as she has a lot to tell her readers.


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