I've got a MotoG2 smartphone running Android 6 which has 8GB of internal storage. I also have a micro SD card that photos save to. The OS takes up 2.49GB so that leaves 5.51GB for everything else. The phone shows that I'm using 5.10GB of that 5.51GB, but the detail shows... 2.35GB Apps 123MB Images 8KB Videos 40KB Audio 2MB Other 5MB Cached data That's a total of 2.55GB roughly. So why is the phone showing double that as being used? Any help please? Thanks!