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Maybe someone here knows the answer to this.
The outer sheath of the power/data cable for my tablet began to fray just below the plastic micro usb mount. I fixed it with a zip tie, but while doing so noticed a few strands of silver wire had broken. They WERN'T the three insulated wires in the cable which remain intact and still transferring power. So what were those wires? A means of stiffening the flex? Or the means by which data is transmitted through the lead? I've no access to a computer at the moment to test the data abilites of the repaired cabke.
Shielding?
Shielding. It's a cheap cable, just buy a new one before it worsens and shorts.
I have a spare. I was just curious.