Sync 3 downgrade via emmc reader

I’m wondering if it’s possible to downgrade via the emmc reader. Is my plan nonsense? Got a bricked sync module with black screen.

SYNC Region: Europe

Navigation Variant: Yes

Old SYNC Version: 3.0.18025

New SYNC Version: 3.4.21265

Do you have a error message, if so what is it?
No error Messages, Display Black only Backround light

Update Method: Official Ford Update

Syn3 Updater Version:

Syn3 Updater Documentation Read:

Syn3 Updater Log File

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Yes it’s possible but we won’t discuss the details here in public.

So is there a way you can help me with this problem? :face_with_thermometer:

Unfortunately for legal reasons i won’t discuss jail breaking and eMMC flashing… its not technically illegal but it’s something i’d rather not even go in to publically.

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