Ok someone please help. I’ve spent the last 2.5 hours trying to make enough space on my phone to get ios8. My storage says I have 3g of messages saved. I keep deleting them and restarting my phone and they keep coming back! How the heck to I make them stay gone???

If you plug in your phone to a computer and go to itunes, you can update your phone from there, and it doesn’t take up memory