The first time I contacted support (online chat), they sent a link to the first youtube video that pops up when you do a basic google search of the problem I described. I'd already tried everything in the video myself the day before. They said they couldn't do anything else and gave me the number to call. So I called the number, and was immediately told the only option is to take the phone to an in-person shop, nothing they could suggest remotely. Eventually I was advised to do a factory reset, which lost me all of my data without fixing the boot loop. Now I'm currently going down a new rabbit hole to get this 4 month old, $1000 galaxy S10 replaced under its warranty.... so far I've been referred back and forth between two apparently different online chat service teams. I would not recommend Samsung to a friend after this hassle.