HP iPAQ hx2000 Series User Manual page 135

8. Remove the checkmark from the Secure Connection box,
then select the COM port that is the same as the one you
wrote down earlier. Click Apply > OK > OK.
9. Open ActiveSync on your computer, then click File >
Connection Settings.
10. Check the Allow Serial Cable or Infrared Connection to
this COM Port box.
11. Select the COM port that is the same as the one you wrote
down earlier, then click OK.