Hello, I bought this gimbal http://www.ebay.com.au/itm/331078385980?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649 When I plug it in it just twitches and vibrates. Anyone had this problem before. Is it faulty. https://www.youtube.com/watch?v=4HuE5grtg_Q Its driving me crazy not getting any support from the seller. Its only been 3 days since I emailed them.