So I am cutting up these usb cables for a home brew style detachable cable mod and came up with a couple questions.
1. The wire and (guessing here) mylar wrap is just for an EMF/EMI shield correct?
2. If I want to use this it would get soldered to the shell on the connectors and to the far outside black pin on the mobo usb connector, correct?
3. Is it required to even hook it up?
4. What could potentially happen if i don't hook it up?
The reason i am asking is on one cable it tinned nicely and the other cable it won't tin at all.