after a crash (beginner) I fixed a few broken things.
I also flash the APM 2.5 new because I changed too much parameters.
All mandatory things and settings and calibration done.
Now, during my first test flights I observe a strange behavior.
The Copter does not respond always as I expected while flying and
from time to time one (or two) motors sounds like they sudden accelerate
with a short screaming sound (for a second).
I attached the .bin file. Perhaps someone have a few minutes to look over the crucial values?
What is that for an (red) error message I see shortly before a fast (I was nervous) landing?
I tried RTL but the Copter drifted away, so I switched back an landed asap.