EghtesadOnline: It was the battery, after all. In a presentation and news conference on Monday that lasted more than two hours, Samsung Electronics Co. detailed the results of its investigation into Note 7 smartphones that overheated and burst into flames last year.

EghtesadOnline: 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 said.