Hey first of all i'm new in this forum and i'm sorry for my bad english :P
I bougt a pixhawk controller for about 5 month ago, before that i have been struggling around with a cheap multiwii controller without any luck.. when i received my pixhawk controller i put it all together took my first flight without any problems no PID tuning was needed.
I upgradede to the newest stable firmware v 3.1.5, and after my hexacopter wobbles a lot around in loiter mode, and is very hard to control.
i had a some "toilet bowl" effect all so, but after i performed a compassmot that helped a lot.
i have been looking all around the internet, trying to find some answers. many says "its something about you PID's", yeah thats was also my thought, but i have tried tune my loiter PID's without any luck, its not getting better then i'm doing that.. maybe i'm doing it wrong :P, but its the same settings before i ran a firmware update :s
my copter flies without any problems in stabilize mode. its just in Loiter mode it have some strange behavior :s
i attached my last log to this post and i hope there is some geniuses out here in this forum there can give me a good answer to my problem :)