After several months of in-depth investigation and research, Samsung Electronics in January 23rd held a press conference in Seoul, South Korea, and the world's three largest independent research institutions, the results of the investigation on the Galaxy Note7 event.
In order to ensure the impartiality and objectivity of the investigation, in addition to Samsung to carry out investigation, Underwriters Laboratories (UL), the United States and Germany Rhine Exponent laboratory TUV group and other three professional institutions of independent investigation. UL is headquartered in the United States, is a professional in the field of security specifications and certification of credibility. Exponent is headquartered in the United States, is a professional science and technology industry consulting firm. TUV group, Rhine, Germany, is an independent international organization for testing, testing and certification.
Samsung Electronics for 200 thousand mobile phones, 30 thousand large battery charging and discharging test, found the phenomenon of burning loss, in the Note7 equipped with A batteries and B batteries were found for different reasons caused by the loss of combustion. A battery is Samsung SDI production, supply to other countries in addition to China; B battery is ATL production, supply to china. Analysis of the results of the three external agencies involved in the investigation also showed that the battery defects led to the loss of fuel.
Samsung side said that Samsung Note 7 from October 11th announced all recall so far, the world has been 96% of the machine was eventually recalled.