go to www.modmymoto.com
there are guides for replacng parts, although you might have to take the phones cover off completely, in which you wil need a T5 screwdriver
I supply this information as i have a V3, and as the phones are similar, it shouldnt be too much different, but ask in the forums there just to make sure
Paul Stobbart stoby@btinternet.com, May 2007