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Pixhawk 1 midair reboot

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@Niels wrote:

Hi,
just got something new with my large quad. A midair reboot... Not that funny as i sounds. I think i lost some years of life expectancy watching this.

This is what happened: Connected battery, started up. Got Ground Station to work and wanted to take of. 2 meters from the ground the copter stopped all props and i heard the "startup sound".
Dropped dead to the concrete and killed, once again, the landing gear.
I can't see anything in the logs except they just stopped i meter above takeoff point. Maybe someone can point me in the right direction.

A few words to the setup:
Tarot X4 with 40A esc running Multistar Elite 5008 320KV with 18'' props.
Pixhawk is powered with a bec through servo rail with zener diode and capacitor.

Power issue was my first clue but it looks not that way.
Hope anyone got a clue.
This is the same quad with the strange altitude bumps i wrote about here.

Maybe a faulty pixhawk?

I have to say that this quad took several flights without any problem. Neither the altitude problems nor the midair reboot.

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