Hi, after I did the last firmware upgrade my Dji Tello stopped flying. Engines switch on for 2 seconds and stop. I did the calibration normally but that did not work. The tello continues without taking flight. Does anyone have any idea what it might be?

I would ensure your app and device are on the latest versions. Maybe delete the app and reload as well. I’m running current firmware without any issues.

Hey，sorry to hear that Moninhas. In regard to this case, could you please double confirm the installation of Propellers like the image below.  If it persists, please kindly contact support@ryzerobotics.com, or click this link to get further assistance : https://www.ryzerobotics.com/support.