Mindflights said:Hey
I am living in Greece but I bought my Phantom 2 from Buildyourowndrone.com UK
around 5 of March, 2014
I have drifting problems with circles etc since the first day,
It is difficult to make it steady and hover even if I have 11 satelites and calibrated everything usually before every flight!
Today it started to make circles with big speed and tried to run away twice!
here is my footage
http://youtu.be/zUEpz_6OyEI
I am very experienced with Phantom 1 and no similar problems up to now, but this is defective for sure!
You are definitely having a problem there and it does look like the classic toilet bowl effect but it is not related to magnetic declination issue which is the focus of this thread. Your problem looks much more serious. Fortuantely, the declination issue doesn't cause flyaways. It does cause a lot of "oh crap" moments when you think your Phantom is going stop and instead it hooks off into a tree!
You need to look at your compass values and degauss if needed, recalibrate IMU. Do the compass calibration in an area away from ALL metal. If you still have an issue, post it up in a separate thread and we can try to figure it out.