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Hi. I have the same problem. I have used mine for running 4 days a week for around a year and a half. I had the two internal contacts covered as sold by Espruino, but it seems the sweat has filtered under it. The charging contacts are also corroded. I thought that the contacts where from a connector and not a PCB, something like this:
https://www.olimex.com/Products/Components/Cables/USB-MAG-4-PCB/
Ideally we should remove the corroded plating to expose the base metal, then make nickel plating and on top of that gold plating. Because buying the chemicals for just four contacts is expensive and the chemicals seem to be pretty nasty, what I want to do is tinning the contacts with a soldering iron. I was going to do it tomorrow, I can record it and upload the video if the contacts make good connection again.
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adjtm
@devsnd
Hey! I wear my bangle.js every day, also when doing sports etc... and I guess over time all the motion and bodily fluids and the charging cable are beginning to eat away the charging contacts. What could I do to restore them before the contacts are fully gone?
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