I have a HW2.0, MCU1 Model S. When Sentry mode showed up I was totally psyched only to find out that 2.0 cars still don't have recording capability, however I found this out after formatting a drive and putting it into the car and nothing happening. Weeks pass having used Sentry Mode anyway and I run into a bug and tech support has me turn off sentry mode remove my flash drive and hard reboot the car. I take the flash drive inside and discover that while there aren't recordings, there are hundreds of 1KB video files where the recordings should be. Maybe an indication that they do intend to get recordings working on 2.0 cars?