I recently updated to the iOS 10 (10.0.1) through the public beta program. Previously in iOS 9 I was an avid user of the little old trick of trying to rent a HD movie via iTunes to free up space on my phone when it got down to barely nothing left. Not sure what fills up the phone and is classed as "other" but it became a real pain and I'll be glad when I get my iP7 and more storage. Now, Apple have changed the rental process as when you click on Rent Move, it will instantly charge you for this regardless if you have enough space or not to download it and the 30 day expiration timer appears. Is there any other know way to clear the cache which takes up a lot of space, I want to ensure I can back everything up properly before my upgrade next week.