As battery explosion fears led to a global recall of Samsung's premium Galaxy Note 7 , the south Korean giant has for the first time revealed the reasons that caused the "rare" overheating of the battery cell. On its UK website, Samsung wrote: "Based on our investigation, we learned that there was an issue with the battery cell. An overheating of the battery cell occurred when the anode-to-cathode came into contact, which is a very rare manufacturing process error". An Australian man was left with burns when his Samsung Note 7 "exploded" as he slept in his hotel room. Tham Hua, from Victoria state who was visiting Western Australia, said his Galaxy Note 7 exploded in his hotel room, bursting into flames. "My brand new Note 7 exploded this morning while I was still asleep, it was plugged in and charging," Hua posted on a technology forum. "Phone completely fried... (Samsung) told me this is the first case in Australia. (It) charred the