Ok, my 2014 MS85 browser completely stopped functioning last week. I've exchanged several emails with support doing multiple resets and power off cycles with no result. They suggested I make an appointment for service. Yesterday I took it to the SC and an hour later they told me everything checked out with my car and was operating correctly and that Tesla has decided to drop the browser function on older cars.
I asked about the LTE upgrade, and they indicated that was no longer a good option and that my MCU was to old to install the module. Instead they offered to replace the MCU1 with a newer version that included the communication function for $2800 plus labor and tax, but couldn't guarantee the browser function would return.
Also, I no longer get the Release Notes, just a blank screen. Perhaps the two are related...IDK?