Chosen Solution
It was working fine and flying properly until I changed a propeller and it feels like it’s pushing down and won’t take off? (Some button may have been pressed on the controller after it stopped working)
When you replaced the propeller, you likely replaced it with the wrong one. With a drone, the lower left and upper right propellers spin in opposite directions of the upper left and lower right. There should be a number or letter on your old propeller, so you should have replaced it with the same one.
