I am trying to clear the 3+ GB of space occupied by other and documents and data on my iPhone 5S, running the new iOS 9.1 (13B5110e)
Usually I would do this by restoring the phone through iTunes and then restoring from a backup...but when I try that I get this message:
"Problem downloading software. Requested source was not found."
How can I clear these out in the version of iOS?