How to reduce the Other data on my Iphone 4?

I have already researched and tried to find out ways to reduce it. The only solution I found was to restore my iphone, but that didn't work. I have an 16gb iphone 4. The Other data is taking up 2.30gb and I would really like to lower that.

You can't. That's the software and the phone itself. If you do delete it (which you can't) the phone wouldn't work at all