Samsung looked to regain the trust of its customers as it revealed late Sunday that two separate battery issues caused one of its best-selling smartphones to catch fire and explode this past fall.
The South Korean tech giant disclosed in a report that the battery components in the Galaxy Note 7 did not properly fit in the battery's casing. That design caused the initial round of fires, which led to property damage and personal injury for its owners. The damaged batteries in these phones were crimped at the battery cell's upper-right corner.
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The second round of fires, which affected the devices sent to replace the original faulty phones, were caused by several manufacturing issues, including inadequate welding at the battery manufacturer the company raced to produce those new phones.
"We are committed to earning the trust of our customers through innovation that redefines what is possible in safety, and as a gateway to unlimited possibilities and incredible new experiences," said DJ Koh, Samsung's president of its Mobile Communications Business in a statement. The company said 96 percent of Galaxy Note 7 phones have been returned.
![Large-scale battery testing of the Note7 being conducted by Samsung and third-party researchers.](/web/20170425154942im_/http://www.canberratimes.com.au/content/dam/images/g/t/w/x/i/3/image.related.articleLeadwide.620x349.gtwrv9.png/1485144605663.jpg)
On-stage during a press conference in Seoul, Koh was quick to point out that several of the phone's key design features, including its iris scanner, fast-charging feature and USB-C port were not causes for the fires.
The US Consumer Product Safety Commission, which administered the recall in the US, declined to comment on the new report. In the US, at least 96 fires have been reported in the United States - including a car fire in Florida that brought widespread attention to the problem. The phones are banned by the Federal Aviation Administration. The phones are so volatile that airline staff were instructed to announce that ban at the start of every flight - a requirement only lifted on Jan. 10.
The report was compiled by Samsung and third-party researchers it hired to work on the investigation. The issues disclosed Sunday ultimately led the company to issue two recalls for its flagship Galaxy Note7 smartphone, and to stop making the device altogether. Samsung recalled approximately 2.5 million phones in total.
The recall was a blow to the company, which reported its lowest profits in two years in the quarter immediately after the recall. Sales numbers also indicate that it lost lost ground to its smartphone rival Apple over the crucial 2016 holiday season. Analysts have estimated that Samsung may have lost as much as US$10 billion due to the recall, in costs and lost sales. Samsung will report earnings Jan. 24.
![Galaxy Note7 units caught fire because of a battery size issue, and replacement units were affected by quality issues.](/web/20170425154942im_/http://www.canberratimes.com.au/content/dam/images/g/t/w/s/4/z/image.related.articleLeadwide.620x349.gtwrv9.png/1485144605663.jpg)
Samsung said they "have taken several corrective actions to ensure this never happens again, including the implementation of a multi-layer safety measures protocol at the product planning stage, and an 8-Point Battery Safety Check."
The additional safety checks add several new tests for Samsung and its manufacturers. Samsung said it will increase the rigor and frequency of visual tests -including an X-ray - to look for problems in the shape and size of it batteries. Both battery manufacturers and Samsung will disassemble the batteries as part of these checks, to avoid issues such as the welding problems that cause the second round of fires.
Samsung also hired researchers to look at its manufacturing processes; those researchers reported that the company's factories met all international safety standards.
The Washington Post
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