Experienced this today after I lost power during a charging session. Cable seemed to be fine (actually had to use it just so I could remove the charging cable).
After a few reboots, door control was back, but red error light wouldn't go away. Powered it down for 15 minutes, no luck. Powered it down for a couple of hours, which did reset the error, and allowed me to start charging again.
After a few reboots, door control was back, but red error light wouldn't go away. Powered it down for 15 minutes, no luck. Powered it down for a couple of hours, which did reset the error, and allowed me to start charging again.