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USB Wire Color Code Slicing From Common USB Type A Cable

Updated on December 25, 2015

Home Repair of USB Cable When You Can't Buy At The Moment

When you have problems with your USB cable at home, you may find your day worse. You probably throw you USB cable away for the trouble.

Or may you would want to purchase a new cable but think before you buy. You may want to try to repair just a little effort from your two hands.

When you can't buy a new USB cable at the moment, the thing is, you can repair it yourself. It is a difficult situation and mind that most cases of USB wire malfunction are only torn wires or disconnected wires inside that USB cable.

Most USB Type A part of the wire where disconnection happens.
Most USB Type A part of the wire where disconnection happens. | Source

The Things Need To Repair Your USB Cable

There are only few things you need to repair your USB cable at home since there are only four wires inside that USB cable.

The things you need are: knife (or wire cutter pliers), soldering iron, soldering lead

This is just as easy as one, two and three.

You always place your USB cable in your small bag, roll it and twist it around just to fit in. Now, for how many times you did that, it will create a small dent on the wire itself and eventually may cut the wires inside that USB cable. The thing is, it may connect for an instance then as you touch it, it will again disconnect. What a trouble, right?

3 stars for Anker® 25W 5-Port USB Charger Travel Adapter

What Will You See When You Cut the USB Cable

When you cut the USB cable, you can see the four wires. These wires have color codes that may help you in determining whether you have disconnected wires or malfunction wires.

The USB cable has only four wires so you need to just connect the same color for the same code to have a functional USB cable again.

My friend tried the kind of USB Charger Anker Brand below. There was a defect but instantly he managed to repair it in a few minutes.

Here are common things to be reminded when slicing a USB cable. You may cut the wires inside it. Be careful because there are four wires inside the USB cord wire, Type A or the common USB cable.

What problems have you encountered when using a USB cable?

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Procedure in Connecting a Torn USB Wires inside a USB Cable

1. Get a knife and cut across the USB cable at neck part of the USB connector on both ends.

2. Slice the USB cable to expose the four wires inside it.

3. About one and a half inch, expose the whole four wires.

4. Remove the insulator or the covering plastic of the four wires of about one fourth inch only.

5. Work on the other side so that you can connect the USB cable that you have cut.

6. Connect the same color. Again, connect with the same color to avoid hazard to your device.

7. Solder the connected wires to strengthen the connection.

8. Place electrical tape to each of the four wires to avoid short circuit.

9. Make the same thing to the other ends of the USB cable to make sure you connected all the four wires.

10. Use a continuity tester, multimeter or ohm meter to check for proper line connections.

Four wires inside the USB cable
Four wires inside the USB cable | Source

Another way to check for connection

You can make a trial and error method to check if your USB wire is now in good condition. Just simply connect it to your device and see if it works then change the wires if it does not.

This is only advisable if you use another set of USB wires that are not in the same manufacturer. This matters because it has different set of wire colors. Do not be bothered by this set of four wires because we have also posted a photo of that USB wires.

Try to check below that kind of USB cable with different set of wires so that you can check your own USB cable.

USB cable problems of disconnections
USB cable problems of disconnections

The Common Set of Four Wires inside A USB Cable Type A

The common set of wires inside a Type A USB cable are red, black, green and white.

Red wire is always the hot wire meaning the 5 volts wire as positive wire and the opposite which is the black wire takes the ground wire or negative wire.

The two other wires are data wires. Negative and positive data travels through the wires. Green is for the negative data line and white for the positive data line.

Sample pictorial diagram of USB cable wire sliced exposing the four wires inside.
Sample pictorial diagram of USB cable wire sliced exposing the four wires inside. | Source

USB Color Code on Other Set of Wire Colors

You may think that there are other wire colors in some USB cable. Don't worry because the value of the four wires will not change.

Those wires have always the positive wire of 5 volts, negative wire and two data wires.

I include example below of another USB cable with orange, blue, white and green combination.

Now, you learn many things. Please, if you have comments, suggestions and questions, don't hesitate to write on the comment section below. Thank you so much.

USB cable with orange wire, blue wire, white wire and green wire
USB cable with orange wire, blue wire, white wire and green wire | Source

© 2014 Mark Johann


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