Do not try to pull the wires out of the header connector on the mini-USB cable.

Each wire is crimped into a metal receptacle, which I refer to as a pin for convenience.

Each pin is latched into place by a tiny little "finger" of plastic, or latch.

To remove the pins without damaging them or the connector body, proceed as follows:

• Using a scalpel or a very small flat-bladed screwdriver, lever up by a half to one millimetre one of the latches. Do not lift higher or use excessive force.
• While holding the latch in this position, gently pull the wire for that latch out from the header body.
• Repeat for the rest.

When it comes to putting the RED and BLACK wires back in, in the place we want them, push them in whilst ensuring the pin is the right up to latch into place again.