This worked on my cmax today to fix the inverted touchscreen.
Screen calibration is done by going into the diagnostics mode:
Turn the audio system on and set it to AM or FM mode
Press and hold the eject button. Then within one second, press the "Seek up" button and hold for about 5 seconds.
The diagnostics will start and do a walk-around speaker test by playing a tone in each speaker. You can cancel that and go into the main diagnostics menu.
There is an option for screen calibration. I haven't done it, but I believe it prompts you to touch the screen in multiple locations to do the calibration.
I have to say thanks, it's helped me tonight.
To tell the story, I took my C-Max in today to get the 3.10 update. Now, something that people here might be able to better explain (and if it was just an excuse), according to my service manager, they are having issues with their Oasis connection to Ford's servers -- apparently getting random time outs and such which is preventing some car diagnostics to be done, as well as causing the update of my Sync to fail.
When I got the car back today, I couldn't figure out the touchscreen -- it seemed almost random what would pop up. As I played with it, I realized the touchscreen was mirrored and inverted, so pressing on the top left, instead of getting the Phone screen, I'd get climate control. I managed to get a phone paired, with a bit of playing around, by just trying to guess where the inverted upside down position would be on the screen. So, tonight using the diagnostic mode that is posted, I managed to get the screen recalibrated fairly close (I should have taken a stylus with me, instead I used a finger).
I still have issues -- I think the sound system believes I have the non-touch sync without all the speakers -- it seems the left/right and front/back adjustments aren't working. Additionally, it doesn't realize I have the factory navigation. But at least, other than a few issues like that, it is now much more usable.