3 pin micro usb cable

[ALEXRAVENCLAW]

So, am trying to fix a solar panel mount for a ring camera whose cable broke THE DAY I GOT IT. And so, l'm going to replace the cable, but the problem is that I have a donor cable with 2 wires/ 2 pin and one that has 4 wires/ 4 pin, but for some reason, the cable inside of it has 3 wires?!?!?!?!?!? Is this a normal thing??? Also how the hell do I wire it???

[thrasher_565]

you peal back the rubber about half inch then you buy solder less connectors and you put one in each end and heat it up with a litor

[Fasauceome]

1 hour ago, ALEXRAVENCLAW said:

Is this a normal thing??? Also how the hell do I wire it???

Positive, negative, ground if I had to guess. Strip the black sheath and match the colors. 

[ALEXRAVENCLAW]

18 hours ago, Fasauceome said:

Positive, negative, ground if I had to guess. Strip the black sheath and match the colors. 

I thought the black was ground? Also normal micro usb's have either just have the black and red for power or that plus a green and a white wire for data + and -, so where do I connect the ground to?

[Fasauceome]

8 minutes ago, ALEXRAVENCLAW said:

I thought the black was ground? Also normal micro usb's have either just have the black and red for power or that plus a green and a white wire for data + and -, so where do I connect the ground to?

On your damaged device, black is most likely ground, red is most likely +, and blue is most likely -. This is the industry standard. 

 

USB 2.0 should have black for ground per that standard as well, but you can always grab a multimeter and check. 

[Heats with Nvidia]

Strip the cable a little bit. Most likely there is some metal foil for shielding, which is ground.