Hello there, I am having an issue where after updating to Sync 3.4 the navigation icon does not move from the last location before the upgrade. I went into the diagnostics on the APIM and found that I am not getting any GPS signal at all. I tried plugging a new GPS antenna and that did not solved t…

Although there are a few settings enabled in the Sync 3 APIM that were not enabled in the OEM Sync 2 APIM, like PDC, there are no settings that would affect the compass or GPS in error. The issue is with the acquisition of GPS signal, not the Sync or maps installation. What GPS antenna is connected…

CyanLabs Official Community

I am getting no GPS signal after update from 3.3 to 3.4

Ford SYNC 3 Support