G'day Nightspy - I also purchased off eBay and had similar issues. Just check that you have removed the small foam piece on the back of the gimbal. I have found that if I leave the drone on for a couple of minutes the gimbal will make a noise and I will have vision. Kind of like it needs to warm up then it works ok. Saying that there are a few different reasons for that issue in the forums so might pay to do some searching. Good luck as I know it's very frustrating......