Note7 fires were caused by defective batteries, not a design flaw or firmware issue -Reuters

The saga of the Galaxy Note7 was one of the most surprising and disastrous events in the tech industry last year. 

The Note7 received very positive initial reviews, but soon after, several reports of the device catching fire were made public. After acknowledging that the problem was with the Note7, Samsung began recalling all units.

To make matters worse, Samsung started production of a new 'safe' model shortly afterwards, only for those devices to start catching fire as well. Finally, the company threw in the towel and completely shut down production. But the story of the Note7 still isn't finished, as Samsung has yet to officially announce the results of its investigation of the actual cause.

The investigation has concluded, Reuters reports, and found that the battery itself was the main cause of the fires. While you might think that is the obvious answer, there was speculation that the Note7's design or firmware was to blame. A source also told Reuters that Samsung will likely officially announce the investigation results on January 23, just before the company reports fourth-quarter earnings.

It remains to be seen how much of an impact the Note7 debacle will have on future Galaxy sales, especially the upcoming Galaxy S8.

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