when i updated my galaxy s7 to android 7.0 my micro sd card went wrong. when i was chosing to save my picture that i take with to camera to the sd card it said that it was changed to device storage but i still could view files on the sd card. my phone started to have all kind of problem so i cleared the cache partition. then it stopped recognizing the sd card and my phone started to work well again. now the sd card cant be readed on any device ( computer, printer, etc ) is anyone else had this problem when upgrading galaxy s7 to android 7.0