Here is a little "cheat sheet" I put together from various posts from different members on this forum, and probably others,....all credit for the info goes to them.... when I did the conversion on my '17 V6. These should help you get started depending on the options, etc., that you have on your...
I have not personally flashed 3.4 on my APIM...it came already installed....but according to the Cyanlabs website here https://cyanlabs.net/tutorials/update-ford-sync-3-2-2-3-0-to-version-3-4-all-years-3-4-19200/
you should be able to flash as long as you are already running Sync 3.0 or above.
Don't bother beating yourself up trying to clear those DTC's for the Solar sensors.....they will always be present, but will not affect anything adversely, so they can be ignored. They are present because your car uses a different sensor than the newer cars, so it will not ever be able to...
Just did the 4" to 8" swap in my '17 base.
Having an issue with the starter button not functioning at all. Press the button, and no accessory power, and it will not start!
Oddly enough, though, when I press the power button on the radio, it powers up and shuts off when I press it again.
Removed...
Try changing these bits to make sure the transmission type matches what's actually in your car:
Manual vs. Auto Trans
7D0-01-02 xx9x xxxx xxxx - Manual Master Race
7D0-01-02 xx8x xxxx xxxx - Autotragic
This has been documented to fix the wonky compass.
I think if you go into "Settings" on your phone, then "Sounds and Vibration", then "Volume," then use the volume slider beside "Notifications" to reduce the volume of the notifications, this might help you out!