S.Peelman on 03 December 2013
Bit of an old thread but okay... For people that didn't already know;
You don't need to delete anything from your iPhone to update iOS, if you just hook it up to a computer instead. I guess it needs that 3GB for swapping files or something, which it will do on your phone if you download it there directly. If you use iTunes however, it'll use the space on your computer instead. It'll save time too because the process is a lot faster.
Or at least, that's what I think, in any case you don't need to delete anything because I could update it through iTunes while having only 150MB free space on my phone itself.
Needless to say, one should update to iOS7 immediately. A vast improvement, probably the best update they've ever released.
