HHD not conn

RELATED FAQS

Question
Answer
1) Make sure the lock batteries are more than 4.0 volts. The USB connection will not detect or communicate with a voltage lower than 4 volts. Many times a firmware update will draw d...
2) Make sure the SUS/HHD is set to communicate using USB connection mode in SUS.  You should see the familiar USB symbol on the SUS main Screen in the bottom right corner.  If you see a S...
3) When you update with NEW firmware replacing very OLD firmware a S1 RESET is suggested after the update. This initializes all the AD-Series memory locations to the new firmware. S1 is the ...
4) Make sure the HHD-USB cable is securely inserted into the HHD and into the lockset.  
5) Inspect the HHD-USB connector(s), ensure no pins are damaged, recessed or out of alignment. If a damaged cable is found customers should see their dealer for a replacement or they can order a re...
5) If working with a CO lockset, the mechanical key switch needs to be in its "Inactive" or normal position.  Ensure the triangle alignment on the front escutcheon and that...