I own a few single and quad rotor helicopters and have flown them for a few years but took my Iris out for the first flight yesterday and had a very unfortunate response.

Setup:

Plugged in the USB and updated the firmware and the ran the calibration on compass, etc.

Charged the battery until all 3 lights were green (took around 2 days which was goofy)

All sounds indicated everything went fine

Preflight:

Turned on remote

Turned on Iris (correct sounds played)

Waited for GPS lock

Flight:

Took off ( both switches up on remote)

Flew it around for about 10 minutes

Sitting at 15 feet hovering

LED flashes a sequence with yellow/red and starts beeping

Does a sharp roll and motors go to full power

Try to pull in back with no use

Hits a tree 40 feet up in the air

I had to climb the tree to get the Iris back down, once on the ground I repeated pre flight and hovered inches off the ground again and then shut it off.

I have not pulled (or know how to pull) logs from the Pixhawk if it even stores failure stuff like that. I do not know what went wrong. I fly full 3d single rotors all the time so it is not user experience. The battery was low but not at a critical level at all.

I did not have any waypoints or automation setup in the software. Switches were still both up after all the chaos.

I fixed the broken rotor from the tree and am charging the battery now. My plan is to record a boring 10 minute hover session hoping it happens again and can be recorded. I have never seen anything like this but most of my helis are "dumb" in that they do exactly what I tell them.

Any insight would be nice and I will update this thread with more information as I get it.