So I have been trying everything to figure out what is going on with all the missing space on my 16gb iphone 6 plus. I restored the phone completely without even using a backup, and I'm still only allotted 10.50GB of the 16GB. I understand that the OS can take up to 1GB of data, but there's just no way the OS takes up more than 25% of the data on the iPhone. I can't seem to figure out where all the missing space went. Can someone help? OUT OF THE BOX ONLY GIVES ME 10.50 GB OF AVAILABLE SPACE.