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Wondering if anyone has done an update to their Sync software (mine is Sync3) via the USB port?
I understand the engine must be running to perform the update and all that is required is to plug a thumb drive with the updated software into the USB port and it will complete the update.
MY QUESTION IS: Will any confirmation of Success/Completion be displayed on the monitor when the process has finished?
Yes, I have done the update with usb port. Some updates can take a while, (like 2 hrs) You will get a confirmation when done. I did one on a road trip.
You mean I might have to have the truck running for 2 hrs. to complete the update? I do not know that it is worth the time/trouble, given no info whatsoever as to the benefits gained by updating the software.
I thought I read somewhere that the updates are downloaded/performed automatically when I Wi-Fi connection has been programed into the Sync3 system. Is this not true?
Yes, on many models it will update over wifi. You asked about usb... You should determine if you need an update, enter your vin in Fords website https://www.ford.com/support/sync-maps-updates/