I've also now updated mine. it was a bit of a struggle..
download was very slow - I have 1Gbps connection, but still took like 1,5h to download just 29GB.
when I put the USB stick into the port - nothing happened. I tried restarting the vehicle few times. changed the ports - nothing..
I was about to give up and took the stick out, but still put it back it for the final attempt - and it popped up the update window on the screen. went smooth, some 20min. and it was complete. so far so good.
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