A Samsung Electronics Co Ltd investigation into what caused some Galaxy Note 7 smartphones to catch fire has concluded that the battery was the main reason, a person familiar with the matter told Reuters on Monday.
Samsung is seeking to put behind it the Galaxy Note 7 explosions, one of the biggest product safety failures in tech history, as it prepares to launch the Galaxy S8, one of its flagship phones, sometime in the first half of this year.
Investors and analysts say it is critical for Samsung to provide a convincing and detailed explanation about what went wrong with the Galaxy Note 7 and how it will prevent such problems from recurring if it is to regain consumer trust.
"They've got to make sure they come clean and they've got to reassure buyers as to why this won't happen again," said Bryan Ma, Singapore-based analyst for researcher IDC.

The results of the investigation into the Samsung Galaxy Note 7 explosions will likely be announced on January 23, a day before it announces detailed fourth-quarter earnings results, said the person, who was not authorised to speak publicly on the matter and declined to be identified.
Koh Dong-jin, head of Samsung's mobile business, will likely announce the results as well as new measures the firm is taking to prevent similar problems in future devices, the person said.

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