Samsung investigation finds battery caused Note 7 issues: Report

Samsung is expected to officially announce what sparked its Note 7 smartphone to catch fire, prompting a global recall in September 2016.

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Exploding lithium-ion batteries have sunk Samsung's flagship Galaxy Note 7 and damaged the company's bottom line.

Image: CNET

Samsung's internal investigation has found the battery, and not software or hardware, caused the Note 7 smartphone to catch fire and explode, according to a new report from Reuters.

The South Korean company will officially reveal its findings on January 23.

Shortly after the global recall and pulling the Note 7 from store shelves in October, an independent investigation placed blame for the fires on the lack of space in the battery compartment.

With the announcement, Samsung will start the process of earning back user trust and confidence as the release of Galaxy S8 gets closer (as Samsung typically releases new devices in the first half of the year).

Recently Samsung announced 94 percent of recalled Note 7s in the US have been returned, and the FAA has lifted its requirement of pre-flight announcements by airlines, reminding fliers the Note 7 is banned from all flights.

The announcement was made shortly after all US wireless carriers released a software update that prevented the phone from charging, rendering it useless.

Galaxy Note 7 overheating theory:

Galaxy Note 7 fires may be to blame on tight battery An independent engineering consultancy firm says Samsung was too aggressive in the design of the Note 7, taking design risks that led to the phones overheating.