I was lucky. The camera I bought was fixable. So now I have a camera. I bought 2 more on Ebay and they are both trash. I guess I will never learn. Most of the cameras on Ebay are someone's trash. Hoping to make one good one out of two.
Does it move at all? Did you use a good ribbon cable? There are a lot of bad cables out there. I only use DJI's cable or the one from FStop. FStop's cable work great. Half the price. The one they sell has never failed me.