![Image](https://i.imgur.com/93NiQ6T.jpg)
![Image](https://i.imgur.com/vC7AYpo.jpg)
PCB (I have no idea what the numbers mean):
![Image](https://i.imgur.com/ThwkQbc.jpg)
![Image](https://i.imgur.com/7tzpwuS.jpg)
![Image](https://i.imgur.com/VSEntJI.jpg)
The FCC exists, but https://apps.fcc.gov/oetcf/eas/reports/ ... 4NEQX-032H Error.
I found a similar thread from 5 years ago on a similar keypad, but with different switches: viewtopic.php?f=62&t=10722&start=