Yes, I wakup vehicle this year. In Jan'20 I connected to internet (repaired car itself and replaced sim etc) while it was last time visible on Tesla servers back in 2017 (verified with Tesla). Meantime it lost all updates, including migration to 18.26 and 20.4.I have a salvage title, but receive OTA updates. Don't you get those? Might it be that your firmware is too old, before the transition to Hermes?