lampcord
Member
I had an issue with my M3's cellular connection and after doing a remote diagnostic, Tesla told me I had to bring it in because the computer needed to be replaced. This was Dec 2019. They kept the car for 2 days and when they were done I had HW version 3.0. So I guess I got lucky. FYI, I did not have FSD at that time so that did not impact their decision to upgrade my hardware.