What should I do if my USB cable is stuck?

If you have trouble removing your USB cable, email us at contact@numworks.com with the following information:

  • Description of the problem
  • Your order number or proof of purchase

What should I do if my USB cable is broken inside of the USB port on my calculator?

If your cable has broken inside the USB port of your calculator, write to us at contact@numworks.com with the following information:

  • Description of the problem
  • Your order number
  • A photo of your problem

What should I do if my USB cable is lost or missing?

While NumWorks does not currently sell a replacement charging cord, the good news is you likely have an acceptable cord at your house already!

The latest model of our calculator, N0120, comes with a yellow USB-C cable. If you’re unable to use the cable provided, you can use any other USB-C cable to charge your calculator.

If you have a model N0110 or earlier NumWorks calculator, it comes with a yellow micro-USB cable. If you’re unable to use the cable provided, you can use any other micro-USB cable to charge your calculator.

If you do not have access to the correct charging cable, you can purchase one from your preferred retailer.

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