My organization purchased 2 2015 iPad pro's with a grant a back in 2016. The person managing the devices has since left and they are now on me. When i went to update from ios 9 I was told that an OTA update is not possible and to connect to itunes. I work for at a government hospital and there is zero chance that I can work with IT to get itunes installed on our computers. I also just got rid of my home computer, as I saw zero need for one. Does anyone know of a way I can get them updated? The people I work with are pretty computer illiterate and i wont do it. Can i just go to an apple store, or is there a way to do it OTA somehow?