Sync 3.4 error maps

hello I had a sync 3.0 with navigator, I installed 3.4 20196 but I have not installed the maps and now the navigator does not work, how can I make and make the maps work?

Reinstall with maps.

You have a 2018 Fiesta, I assume it has Sync 3. Use Syn3 Updater and use the downgrade option and reformat to install the maps and app.

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[quote=“F150chief, post:2, topic:1897, full:true”]
Reinstall with maps.

You have a 2018 Fiesta, I assume it has Sync 3. Use Syn3 Updater and use the downgrade option and reformat to install the maps and app.

where do i find the downgrape and what should i insert?

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Just the procedure ?

That is correct…

I always have this error