I had the update done at my local Toyota dealer on a 2021 Supra 3.0 and it bricked the navigation radio. Toyota tech line in consultation with BMW tried numerous reset and reprogramming procedures to no avail and now advise the navigation radio must be replaced. Crossing my fingers that when...
Might be a stupid question but are they using the correct tool to communicate with the car? My understanding is the Toyota tools will not work and the dealer must use the appropriate BMW tool.