Hi Thanks for letting me join I have just had my walls plastered and removed this switch but didn’t take note of where the wires came from Can I ask how to rewire it or if I can replace it with the pictured new WiFi switch I have 2 cables in the wall both Red Blue Yellow and both reds are live? Any help would be great thanks
The old switch is 2 gang (It has two buttons) your new switch appears to be 1 gang (Only 1 button) so that is your first reason you can not use it. The second reason is if you look to the left there is a terminal marked N in (Quite common on wifi switches) UK lighting in the majority of cases does NOT have a neutral at the light switch, so that is another reason you can not use your new wifi switch.
As for how do you put the old switch back, that is a case of trial and error as there is no definitive colour coding for two way switching (Which is what you appear to have as you have 2, 3 core and earth cables) You could look at the other switch that operates the same light and see how that is connected and duplicate it at this switch.
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