Z-Wave Deadbolt

I am trying to connect the **Kwikset** deadbolt that came with the house we bought it in 2016. I am seeing a lot of Kwikset model numbers that are 3 digits and some letters like 916TRL on the "Works With Ring Locks Compatible With Ring Alarm" page: [https://support.ring.com/hc/en-us/articles/360017691131-Works-With-Ring-Locks-Compatible-With-Ring-Alarm](https://support.ring.com/hc/en-us/articles/360017691131-Works-With-Ring-Locks-Compatible-With-Ring-Alarm) ...but under the electronics cover is: MODEL **450191** and FCC ID NUL450191 **ZWV,** HomeConnect Ready. I suspect that 450191 is not the same classification numbering system referred to on the compatible devices page. The 'ZWV' certainly points to **Z-wave** and among the very limited google results I have seen that this is probably a **Zigbee** version. More info is found in the Google results synopses than most of the pages themselves. I have **factory-reset** the lock by removing the battery block, holding the program button, reinserting the battery block, releasing the button once the lock beeps and flashes after about 30 seconds, pressing the program button again, programming pin and running a door handling learn cycle. I removed the entire assembly from the door and **moved the lock assembly with the exterior keypad connected to within a few inches of the Ring base station**. In the Ring app I went devices -\> (+) -\> Locks & Access Controllers. Tried all Kwikset options in turn (and manual) with combinations of 1, 4 and 9 presses (twice or thee times each) of the 'A' (upper left) button. The LED under the label illuminates like something is happening, but no joy. **My lock matches the interior view of the 910** SmartCode deadbolt (as shown in the app), but none of the instructions or combinations/sequences I have tried have resulted in device recognition within the app. I have also sent a message to Kwikset asking if they can shed a little light on the problem--hopefully with a 123ABC format model number. Any suggestions? I'd prefer not to drop another couple hundred bucks on a lock if I can help it. _//aside// Ring, please offer a glass break sensor!_