Strange error. Update/Downgrade not working

[Louage]

You cannot upgrade a non-nav module to nav, there is not enough space. It sounds like you have filled up your APIM and its caused this issue.

Run the APIM interrogator mentioned in this thread:

Tutorial: Removal of Gracenotes

This utility will remove Gracenotes from your Sync system and release the memory used. This is useful if you have installed Sync 3.4 (which is a larger install vs Sync 3.2 and 3.3) and wish to make changes to your Sync system and the upgrade or downgrade will not run or stalls. If you have run the APIM Interrogator Utility to determine the specifics of your particular Sync unit installed in your vehicle and found there is less than 1.5 GB of free space, you will probably need to delete Gracenot…