Now, Apple is reporting that their own USB-C cables on devices shipped between April and June 8 of 2015 could have a similar fault. Fortunately, this new problem isn’t as dire as the one reported previously, but it’s still an annoyance and inconvenience. In this case, if you have a bad cable, your MacBook may not charge at all, or if it does charge, it may only charge intermittently when it is connected to a power adapter.
The good news is that if you have a bum cable, you can get a no-hassle replacement. There are a number of roads open to you as far as getting the cable is concerned. You can reserve one via the MacBook’s “Genius Bar,” and you’ll receive it in the mail in a couple of weeks. If you purchased your computer during impact window, a replacement should already be on its way to you. If you’ve already purchased a replacement, you may be entitled to a refund. Contact Apple Support for additional details.
Checking your cable to see if you have one of the impacted ones is simplicity itself. All of the impacted cables are marked thusly: “Designed by Apple in California Assembled in China.” All of the redesigned cables are marked “Designed by Apple in California Assembled in China (cable serial number follows). If your cable doesn’t have a serial number on it, then you need a replacement. What could be easier than that?