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This guide is retained solely for historical purposes. Use the updated version of the guide to perform your repair.
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Introduction

Most USB cables consist of four wires: red, black, white, and green. Some newer cables have eight wires, but the same steps apply. If the USB plug itself is damaged, you'll need to remove and replace the whole plug itself. Otherwise, just the damaged portion of the cable can be removed.

  1. Remove the broken portion of the USB cable with the wire cutters. You should now have two pieces of the cable left. If you had to remove the whole USB plug, you'll need a replacement plug. You should now have two pieces of the cable left. If you had to remove the whole USB plug, you'll need a replacement plug.
    • Remove the broken portion of the USB cable with the wire cutters.

    • You should now have two pieces of the cable left. If you had to remove the whole USB plug, you'll need a replacement plug.

  2. Cut the outer cable covering  with wire cutters or scissors of both cables and be careful not to cut the wires themselves. Pull off the piece of cover that you've separated from the rest. You should be left with  four exposed individual wires. There should be four wires, and occasionally a piece of string too. If there are fewer wires, then you've clipped one off, and you need to start over.
    • Cut the outer cable covering with wire cutters or scissors of both cables and be careful not to cut the wires themselves.

    • Pull off the piece of cover that you've separated from the rest. You should be left with four exposed individual wires.

    • There should be four wires, and occasionally a piece of string too. If there are fewer wires, then you've clipped one off, and you need to start over.

    • If there are more than 4 wires, you probably have a USB 3.0 cable. In this case, make sure that whatever wires you'll be reconnecting are both USB 3.0.

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  4. Strip all the wires out from both cables using a wire stripper. You'll need about three quarters of an inch of exposed copper wire. If you don't have a wire stripper, you can strip the wires the same way as you exposed these wires. Gently cut the outer insulation, then pull off the insulation.
    • Strip all the wires out from both cables using a wire stripper. You'll need about three quarters of an inch of exposed copper wire.

    • If you don't have a wire stripper, you can strip the wires the same way as you exposed these wires. Gently cut the outer insulation, then pull off the insulation.

    • When stripping wires, do not cut or damage the copper wires. If you do damage the wire, cut off the damaged portion and try again.

  5. Solder like-colored wires to each other. Here is a video on how to solder wires together.  https://www.youtube.com/watch?v=qxqZJH3S...
  6. Wrap each wire in electrical tape and make sure that there is no exposed copper showing. Wrap each wire in electrical tape and make sure that there is no exposed copper showing. Wrap each wire in electrical tape and make sure that there is no exposed copper showing.
    • Wrap each wire in electrical tape and make sure that there is no exposed copper showing.

  7. Wrap all the wires and both cables together in electrical tape to connect everything back into one cable and so it lasts longer. Wrap all the wires and both cables together in electrical tape to connect everything back into one cable and so it lasts longer.
    • Wrap all the wires and both cables together in electrical tape to connect everything back into one cable and so it lasts longer.

Conclusion

Once your device is assembled and taped up then the repair is done and you can go back and do this multiple times.

20 other people completed this guide.

David

Member since: 01/16/2013

791 Reputation

4 Guides authored

Team

Cal Poly, Team 18-36, Regan Winter 2013 Member of Cal Poly, Team 18-36, Regan Winter 2013

CPSU-REGAN-W13S18G36

3 Members

10 Guides authored

5 Comments

thanks you verb much

obito uchiha - Reply

very i meant

obito uchiha - Reply

What if it has a wire shield around it? Like crazy silver wires wrapped around it?

Bethany Marshall - Reply

Then slowly wnwrap it not to remove it. And when u have repaired wires and taped them re wrap with silver shielding if it does have shielding it best to add a step to the repair and tbats to add a short section of shrink tubeing just big enough to cover spliced section and shielding. Once shielding is wrapped slid tubeing over repaired section and apply heat a hairdryer on high heat will work as well.

kotanwolf -

i tried solding the same wires but it still do not work

Faizan Ali - Reply

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