It's not 'bricking', it's just that the screen doesn't work (and thus any associated functions). Just happened to me this past weekend; my car's flash memory seems to have died right after overnight downloading of V10 update (2014 Model S). The software won't boot up, screen just perpetually shows the T logo. I can still drive, but can't control the heat or AC, music, etc. Some of the scroll wheel functions (like sunroof) will work one day, and then it won't the next. Taking it to the service center next week, but I'm pretty sure it's the eMMC. Wife won't let me download new software to her MX because she's afraid it will happen to hers as well.