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Use this method if OTA stuck, you have no cell signal, or Ford support instructs you.

The core feature of SYNC 4 is its ability to download and install updates wirelessly without a dealership visit. elmedico27/fordpowerup: Ford Power-Up Version History

For , the primary way to get updates is through Automatic Over-the-Air (OTA) software updates via Wi-Fi or FordPass Connect , rather than a manual download to a USB drive (which was the standard for SYNC 3). How to Check and Update SYNC 4