Help! New light switches: Can’t Figure Out Wiring

Ok so after a frustrating day I finally got some of my new smart switches working. The last set was a 3 gang set - 2 regular single pole switches and 1 four way.

I successfully replaced the 2 regular pole switches with 2 smart switches but in the midst of doing that the 4 way stopped working. I have no idea what I did. Does anyone know what the proper wiring is for this setup?

I would guess that the 4-way setup was getting line power in this box, and you’ve neglected to reconnect it.

Before starting on anything like this, you need to map out exactly what each wire is - line, load, neutral, or traveler. If you can’t diagram this out, then you probably need to pull in a pro.

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