So the downgrade applies to only 3.4 19274 was a bit confusing for my poor old brain. Thanks for clarifying this.
Correct, 3.4 19274 or newer...and only if you want to install Maps.
Last edited:
Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.
So the downgrade applies to only 3.4 19274 was a bit confusing for my poor old brain. Thanks for clarifying this.
Maps are the only reason I upgraded although the ability to use the navigation system while the truck is moving is reason enough.
The downgrade + upgrade cycle is painless although it takes longer than just a simple upgrade I needed to downgrade and started that working out in the driveway with the engine idling (hood up, it was 95° or so) while I downloaded the upgrade on the PC onto a separate USB stick. Once the downgrade completed (45 minutes?) I went down cycled the ignition Off/On to insure a reboot of the system and installed the latest version (hood up again). Easy peasy -- but let both reloads complete, it takes what seems a long time.
Regardless of needing to downgrade I recommend NOT watching it as some have been fooled that the process is done before it is.
-- Chuck
I am so confused. Upgraded my sync, read that it included waze, now been reading on here you still have to plug your phone in? Then what is the upgrade for?
The best way is to start your own thread.I hope to find some help: