URGENT HELP! Connecting Sonoff ZBMini (US wiring)

Hi - I have an electrician working on installing the ZBMini. The device is connected and I can control it from Hubitat. However, he cannot figure out how to get the wall switch to work with it. Does anyone have directions on connecting this device to the wall switch? He has tried to follow the diagram on the installation manual but the switch is not working.

Any guidance would be appreciated.

Connecting the 2 terminals from the switch to S1 and S2 works for me

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Also: I accidently put power on S1 and S2 once and that feature did not work ever after for that particular ZBMINI. I guess doing that short-circuited something.

I think that's what may have happened :frowning:. I'm trying a new one and I can't get it to pair with HE now! The lights can be controlled from the switch and directly from ZBMini (physical) but I keep getting this when pairing the new one

"The device join failed and was not added to your network. Make sure the device is compatible before trying to pair the device again."

UPDATE: Magically, it paired and the error messages stopped. I can control from HE and switch and the device itself. Now only 2 more to go :crossed_fingers:t3:

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