This pic is from my car, u need to use FORScan to do so. you need a BT OBDII Adapter and a computer.
Then you connect to the car via BT and you change the stereo theme code.
i dont have any msg for 2.3, says im on latest 2.2
im actually on leaked 3.0, never had any wifi popup or any issues
3.0 has been running fantastic for me
2016
ATTENTION:
Ford Motor Company, through its legal counsel, has sent us a letter demanding the removal of materials it claims is violating and/or misappropriating their copyrighted and proprietary information and materials, including with respect to SYNC 3 software and software updates...