While I have a facelft loaner (late 2017 or 67 reg) for a few more days I thought I'd try out TeslaCam but I can't seem to get it to work. The car definitely has Sentry Mode but when I plug in a FAT32 USB drive nothing happen. I've tried two different drives. Does the availability of Sentry Mode mean the car has TeslaCam? Both are supposed to be features only available in cars from August 2017 onwards.