How to get my iphone 3g to get ios5?

I put it in recovery mode and then i restored it with whited00r but it won't work Please Help ME!

Unfortunately the Iphone 3G does not support IOS5. Only iphone 3GS and up supports it.

You have to put your iphone 3g into a pwned DFU state to restore custom ipsw files google ireb and download it click iphone 3g put your iphone on dfu mode shift restore and there you go.