I posted a quick video where I test the continuity between the traces on the film that holds the button contacts. It would seem Sony’s manufacturing process might even be faulty here, as there is no visible break between the contact and the trace, but no continuity or very low (mega ohms of resistance) continuity happens between pads. This is wrong.[br]
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Here is the video where you can see me test: https://www.youtube.com/watch?v=8zGn2A3DCnk