Bluetooth 4.5 ActiveSync
 

VX 6700 Pocket Rom CE OS 5.2.1620(Build 18125.0.4.2) work perfectly.

I try to upgrade to Apache Kitchen CE OS 5.2.19716 (Build 19716.1.0.0)

but Bluetooth 4.5 ActiveSync dont work;
When I go to ActiveSync then menu, under options it dont give you the option of (connect via bluetooth) and that is very important when you dont have WIFI.