I have a MC92N0 that originally came with Windows Mobile 6.5.3 and custom piece of equipment that connects to the RS232.  Everything worked well on WM but there was a desire to change the OS to Android.  After some discussion with a Zebra representative it was concluded that I should be able to change the OS to Android KitKat without too much headache.  Most of the EMDK seems to work fairly well but any attempt to use the SerialComm API causes it to crash.  I've traced through the program line by line and it successfully opens the EMDK but crashes on the following line.
 
serialComm = (SerialComm) this.emdkManager.getInstance(FEATURE_TYPE.SERIALCOMM);
 
Any thoughts and ideas on how to resolve this would be greatly appreciated!