Partners iPhone 6s is still working well, and want to update to new iOS. However, there isn't enough space.
Tried all the online tips (backed up all photos/apps, then deleted. Cleared all browser cache data). 'Other' is still showing 6gb used.
Any extra tips to clear it (in case it's just temp files etc).
Cheers
My partner had the same problem. finally fixed it with an android phone.