Quad crashed after 3.5 minutes flight. Can't figure out why

[Yuri_Rage]

Your copter is untuned. You demanded more of the default control gains than it could handle, and it crashed. Not much of a surprise, and video almost never helps narrow the root cause.

Start here and go through every configuration step:

New ArduPilot methodic configurator GUI

[App_screenshot1] We created a python GUI application to edit the intermediate parameter files and upload them to the flight controller. All GUI elements have meaningful mouse-over tool-tips. The latest documentation is embedded, It validate min and max ranges, but allows users to override them. It displays calibrations in yellow. If a reset is required because of a parameter change it automatically does it. It reads back the parameters after writing and automatically validates if the write w…