I got a firmware upgrade notice and tried to install via my phone. It would count down the 2 min and says it would install, but then would just say "updated scheduled for the time I initiated the install", but would never complete. I had Sentry Mode enabled while my car was at home so the update never completed. When I got home, I checked it in the car and it said you had to disable Sentry Mode for the install to complete. I disabled Sentry Mode and it installed. I was texting with Tesla Service and they were unaware of this, so just making others aware.