since I use Copter 3.3 Firmware i have a strange behavior that i like to share here. Maybe the one or the other has the same effect or knows how to fix it.
Description: If I try to arm my Pixhawk I get different prearming check failures (EKF..., GPS Horizon...., Gyros not calibrated etc.). Some of them are not documented by now.
After some reboots the arming works and the copter flies without any visible issues! Also the logs are fine.
First i thought that this is due to the hardware or may the cold temperatures outside in Jan/Feb. But meanwhile i see this behavior also on a second Pixhawk from a different vendor and (even in Germany) the temperature improves.
Is there someone who saw similar effects or may has a solution for this? I would not like to disable the checks because they were helpful in some cases.