That could be particles stuck in the gimbal. Have you used Canned air to blow it out? DON'T its way way to much pressure for the gimbal, find a compressor and set it really low and then "dust" out the gimbal. After that, Using the tip of you...
I'm usually the first in line to embrace and welcome new technology but this is absolutely INSANE. Why would anyone actually believe the everyday ordinary motorist would be able to purchase and operate a "flying car" without the proper...