Drone crashed when switching to Auto - help with Log needed

manuk · June 21, 2020, 9:18pm

Hi there,
I have a Y6 that was woring a lot of hours in the past. Last sunday I did a testflight, loaded a mission - take of in Stabilize and after switching to Auto, the drone crashed. Looks like disarm during flight.
The log can be found here: https://cloud.xnox.de/index.php/s/Y8FMzFzG22fCjSW

Changes since last flights: I used another laptop and the current Mission Planner. In the past I used 1.3.58 and it was working nicely. After repair I used my old laptop with the old MP and the drone worked as usual…

I have no idea what happed.

Thank you. Manuk

1111110 · June 23, 2020, 1:40am

Your IMU3 don’t seem to be normal

manuk · June 23, 2020, 5:53am

Thank you for having a look.
Yes IMU3 looks strange. Yesterday I re-calibrate the copter and did some test flights without issues.

Can a bad IMU beheavor result in disarm during flight? (the crash looked like disarm… copter just fall down)

1111110 · June 24, 2020, 1:01am

Bad IMU beheavor dosen’t result in disarm during flight.I don’t know why you haven’t a battry monitor.Your barometer seem’s all bad.I have a guess:When you swtich to auto，bad temperature result caculator an error alt, so your copter crashed.When you want to switch auto,you shou test the althold and PosHold model

Eosbandi · June 24, 2020, 8:52am

Not disarm, but total power loss during flight. Bad battery, connector, cabling or solder.

manuk · June 24, 2020, 10:15am

Hi, where do you see a total power loss? I have constant voltage and telemetry link until the crash.

Eosbandi · June 24, 2020, 10:48am

The flight log you posted ended abruptly midflight, without any message or warning. This is a clear indication of power loss to the flight controller.