I had the weirdest thing happen on my 2018 S, literally the very day/miles that my vehicle went out of the 1 year manuf. warranty, I got a USB error on my screen. But what was crazy is that while driving home from work a guy pulled up next to me to tell me that my rear lights were out. Mind you, my headlights were on and set to Auto. Instinctively I started twisting the wiper stalk, lol thinking it was my old X5! Lo and behold I got home and the rear lights were on. I tried the in-dash USB format, it seemed fine and yet nothing would get recorded for Sentry. A few days later I pulled my Samsung T7 but it was write protected and after hours trying every online trick I gave up and contacted Samsung to open up a ticket. In the interim I ordered another off Amazon and it literally showed up within hours. Now everything is back to normal fortunately.