Why does my iphone say i have too much storage?

I can't take photos or download any apps. I have deleted all my apps, messages, and over 100 photos. It will not let me even update to IOS 7 because it says there's not enough storage. I mean i literally have nothing left on my phone. Do i have to go through icloud? Its a 4s

I HAVE DELETED EVERY APP AND OVER 100 PHOTOS AND MUSIC. OK?

Added (1). Thanks mother f****. Tried that. Doesn't work. Anything else?

Don't re-post. Your a n00b sorry but you are you could have just plugged it into itunes and updated it manually through your computer but you didn't. Its really not hard.

How much GB is your iPhone, if its 8GB then you will have to delete quite a few things to get the right amount of space. The operating system take about 2GB off the original Storage Capacity, so if you got 8GB then its 6GB left, if its 16 somehow you have 13GB left.

Also the things that make the iphone work, use about 600MB which is 3/5 of a GB

Videos take up quite a lot of space so make sure you take some off, try to move them to a pc rather than keeping it on your iPhone

Connect it to itunes on a computer. If I'm right itunes will say the phone is filled with 'Other' data. This means a corruption of the storage of the phone itself. You would have to restore the phone through Itunes as new and then re-add everything over again via sync or re-downloading it. Backing up and restoring from said backup would not help as it brings that corruption right back on over.

I don't know if this will work or not but I would try to do the reset to factory settings thing but you will have everything wiped out including passwords picture ect. No guarantee though