Well, afer filing a complaint with ebay, I got my money back or most of it. There was a smaller transaction done on paypal and I had to file a claim there as well. After escalating the claim, the seller refunded all my money. Still, it's a PITA and probably my worst ebay experience. The seller had 99% but sold so much stuff that even with a lot of negative reviews he had a good rating. The seller was supposed to replace the screen on my camera but didn't. He 'tested' it but I had disconnected the ribbon cable and he assumed that what was wrong was the main board without ever really testing it. Then he mailed it back with no word. I later checked the BBB and his store had an F rating.
So now I'm trying to get in contact with Percision Camera. That's Sony's and a lot of others Authorized Service Dealer. They haven't gotten back to me yet. I think it's probably going to cost around $200 to fix. It's a $600 camera and I've only used it once. I'm going to get it fixed though. It's too expensive not to get fixed even though I could have bought a RX100M3 for the same amount of money I've spent.