Everyone thought that problems which occurred with the explosions of Samsung Galaxy Note 7 are already past and won't happen in the future. One children from Pakistan, during using phone proved that this isn't necessarily true.
Naureen Ahsan let her 4-year old nephew to use Samsung Galaxy J7 which belongs to her daughter, because her nephew wanted to play a game. After moment phone got extremely hot, and suddenly exploded. Child hadn't got injured, but we don't know why phone exploded in child's hands. It's possible that the cause is the battery, as was in case with Galaxy Note 7.