Schlage Cobra
I downloaded the manual and figured out how to reset it back to default, enter user codes, etc.
Only problem is they didn't give us the mechanism that retracts the latch so I have no way of determining if the problem is there.
The keypad operation seems fine, but his model makes no sound when buttons are pressed. It only has a red light on one side and a green light on the other.
I'll get some picture os it for you guys later.
Youtube has some videos on it but they're of the new model.
Also this lock has a classroom/storeroom function. There is no cylinder on the outside lever.
There is only a missing bypass Best cylinder missing that goes below the lock.
Maybe this cylinder is used to determine the function of the lock or just to open it when the batteries are dead. Need more info on this.