Mutant
Member
Newer cars like 2021 Model 3 don't fully shutdown with "Power Off" function on touch screen. My bonus module remains powered (small LED) after the soft power down. So it is best practice to perform hard shutdown (disconnect 12 V battery and disconnect contactor under rear seat) before disconnecting bonus module. Before Ingenext updated their recommended procedures I think I did my first firmware update with soft power down and did not notice any error codes afterwards but would still recommend following the updated recommended procedure.When you remove the Bonus module from a Model 3 with a heat pump (to upgrade the firmware), do we have to shut down everything (hard reset procedure) or a soft shut down(with the screen shut down function) is safe?