why does my nde beep but not unlock?

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The keycam may have failed, example here, the latest design keycam can be easily identified as the colored changed to black. Replace either the keycam or chassis as needed to r...
 This could also happen if the tailpiece isn't installed in a KIL, FSIC, or SFIC cylinder.  The FSIC driver also could have come loose from the core in the spindle.
On power-up the CO-Series locksets will provide 5 quick RED Schlage Button flashes and 5 quick beeps to indicate that the electronics (credential reader) has been changed.  In order to recover...
When/If the electronics (Credential Reader) changed on a CO-Series lockset, the lock will respond with 3 RED Schlage button flashes and 3 beeps for any key press or credential presentation.&nb...
CO Reader Modules cannot be replaced by Reader Modules with a different credential type; for example, a magnetic swipe credential reader cannot be replaced with a proximity credential rea...
A Credential Reader MAY be replaced with another Credential Reader of the same type; however, a Factory Default Reset must be performed before the lock will function properly.
CO Reader Modules are not individually replaceable, nor can they be swapped between locks. The inside and outside assemblies of a CO lock are a matched/mated set and cannot be swapped to change rea...