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Ok. I got a notification overnight that there is a software update ready. I ran to the car but I didn’t get the usual dialogue window to start the installation! I did the double scroll buttons reset with no help. Did Tesla withdraw the updates or they send me the wrong notification? Btw I’m on 2017.48
On our S75 a month or so back, I thought I had seen an update on the phone, went to the car the next day and seen nothing. So, you are not alone. I just considered this to be nothing more than a glitch or they pulled it for a later update.