So in this video we are told by the car that there is a software update ready to install and it is downloaded. In order to take the downloaded file and update the car this will take the car an estimated 40 minutes during which time i cannot use the car. But we tried this several times at different locations and it failed to work each time. I think i know a potential issue - i have not fitted the sim card for the entertainment system but this does not make sense as the file is downloaded and surely the car should use the inbuilt "in control" sim card for this data ?