I have an appt with mobile service for next week, but was just curious if anyone else has had this issue or ideas on what happened? Model S Plaid with software version 10.5.3 installed. App on iPhone was not communicating with vehicle (said last seen 6 days ago) and couldn't open doors/turn on climate control/etc. Other than that everything else was working fine: FSD beta/music streaming/etc. So logged out and reinstalled the app on the phone. Logged back in and same issue. Went to vehicle and did the "both scroll wheel" reboot. When vehicle rebooted, this is where it gets interesting. After the reboot I had dropped back to software version 10.5.1 (never had that as my initial FSD beta software was 10.5.3) and lost all profiles/homelink/etc. I am now getting an alert that Nav data cannot be located and FSD beta is disabled. Can't log in to music streaming with my telsa account (says username and pw is incorrect). Tried to do a factory reset but again says username and password is incorrect. And to top all of that off, the app is still not communicating with the vehicle. I have done scroll wheel reboots previously, and it never deleted profiles/homelink settings. Any ideas? Thanks!