Roborock S7: Cliff sensor replacement

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Soldering

Now the fun part: Soldering!
Solder the wires together, in my case it was simple. Blue on blue, white on white.
I think (but I am not certain, as I am not an electrician) that white is the positive while blue is the negative. Or it might not matter at all. I don't know.
This is a pretty low difficulty soldering task.

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