Thread: Chinese 2 DIN radio/GPS, will not exit GPS mode

Be careful, not able to access filesystem doesn't mean separate OS's. It's possible that unit has basic embedded OS (not as powerful as WinCE) that provides the radio functionality (short of providing complex display of GUI) Then the WinCE is used as GUI (and provide Nav function) and interact (or switching) with radio embedded system. I know that some Nav proggy made for name brand unit such as Pioneer actually have ability to access specific radio functions (even car sensors) so there are settings in sys.txt that is ONLY valid for that system. Running two instances of WinCE's is very resource intensive and to be honest, I don't think developer would implement it because of additional complexity.

Back to topic at hand, I remember seeing some hocus-pocus code in android proggy that implement exiting (or more precise exiting key code); maybe it need to be "tweak" to work on WinCE to exit out of proggy (or WinCE) and return to radio.