Some Amazon customers say the popular $34.99 non-lighted Kindle cover is defective and causing their devices to freeze and sometimes reboot.

If you have a new Kindle and have poked around for a cover for your device, you may have noticed some diverging user reviews on Amazon non-lighted Kindle Leather cover. While the cover has many five-star reviews, there are over 100 one-star reviews claiming the cover has problems that cause the device to freeze or reboot itself.

In a recent review, for example, customer Gunjan Srivastava writes:

Apparently, the more expensive lighted cover ($59.99), which we really like, isn't causing any problems and some users have speculated that the metal hooks on the non-lighted cover are the culprit. Those hooks conduct electricity and power the lighted case but obviously don't need to power anything on the non-lighted version. We don't know whether Amazon uses the same hooks on both cases or whether there might have been some sort of mix up in the production process. But either way, according to a PCmag.com article, Amazon said it's looking into the problem, but will honor return or exchange requests.

"There have been some forum discussions regarding the non-lighted Kindle cover, and our engineering team is looking into this," the company said in an email statement that was also posted to its customer forum where users were complaining. "Regardless, if anyone is having any problem with an Amazon-manufactured Kindle cover, please contact us at kindle-response@amazon.com, and we will be pleased to replace it for free or accept a return for a full refund, no matter when the cover was purchased."

It's worth noting that Amazon had an issue last year with its Kindle cover for the second-generation Kindle. Some customers complained the metal hooks that held the Kindle in place were causing the Kindle to crack where the hooks attached to the device. Amazon resolved that problem after a customer filed a $5 million class action lawsuit.

More: 15 best Kindle covers and accessories

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Hunkered down in New York City, Executive Editor David Carnoy covers the gamut of gadgets and writes his Fully Equipped column, which carries the tag line "The electronics you lust for." He's also the author of "Knife Music," a novel that's available at Amazon, barnesandnoble.com, and as a Kindle or Nook e-book.