Originally Posted by ringo42
yes. I flew it a couple times and then recalibrated and reloaded everything and it still does it.
Same behavior before and after would suggest maybe your "cheap frame" has a warp or twist tilting one or more arms in the direction of the rotation. I had a clone f450 frame do that to me after sitting in a car in the sun for a few hours. The arm that was getting direct sun through the back window developed a bit of twist which imparted a never-ending left yaw until i replaced that arm.