That is wierd. I checked the bug and it is still not assigned to a documentation writer, but there is a note that mentions we will update the docs after the next maintenance release of cisco mobile is out. In any case I would suggest that you open a TAC case to troubleshoot the issue with your iPhone as it should still be supported.
These are the paths to get to each CCX logs through CLI. They may be helpful if you are having issues accessing RTMT or downloading logs through it.
If you want to download them you have to prefix "file get " and you can add one of the options (re...