HHD will not couple with AD lock

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If the error "Device does not support this action - E802" appears when trying to couple the lock, it is generally because the user is not pressing the SW1 tamper button 3 times, but instead pressin...
In order to properly couple, the interior pushbutton must be held down while tapping the SW1 (tamper switch) three times.  This will enable the lock to couple to the HHD.
Yes, several HHD's can be used with a single lock, as long as the HHD's have the same Coupling Password as the lock.
The HHD coupling password is set during the lock initialization, coupling process.
When the coupling password is changed the value is stored in the HHD and once coupled to a lock, the Coupling Password is also loaded in the lock/device memory.
The Coupling Password is compared whenever an HHD is trying to adjust lock configuration settings or downloading door programming files.
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...
Once a user changes the SUS coupling password , the previous SUS coupling password is also saved by the SUS program; this allows the user to update multiple locks with a new Coupling Password witho...
The Coupling Password update is automatic; whenever the Schlage Utility Software, with a new Coupling Password connects with a device, the Schlage Utility Software will automatically update its old...
The internal process to couple a device with new SUS password is described as follows: the SUS first tries to couple with the current password.  If that fails, the SUS tries to couple with the prev...
To verify that the device/lock is coupled; click on the SUS device options-> Couple HHD to device , a message will pop up confirming that the device is already coupled.  
After updating the SUS coupling password, subsequent HHD’s will need the new coupling password entered before they can update any information in the lock, once the HHD has the correct coupling pass...