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Trying to update sync 3 from version 3.3 to 3.4

Ford SYNC 3 Support CyanLabs Update Support

non-nav, na, APIM, SYNC3, Syn3Updater, pre-my20

F150Chief (F150Chief) 19 May 2025 19:35 2

Sync 3.4 NON-NAV APIM: Failure to Update to Newer Version Sync 3.4 Guides

Sync 3.4 NON-NAV APIM: Failure to Update to Newer Version. Read this document fully before starting any actions. It is your responsibility to follow the instructions as outlined below. (DO NOT USE REFORMAT ON 2020 AND ONWARD VEHICLES) General This tutorial covers the scenario where a NON-NAV APIM with Sync 3.4 installed and will not update to a newer version of Sync 3.4. This is not the same as upgrading from previous versions of Sync (3.0) to Sync 3.4. It is assumed that you have tried to upg…

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