I'm having loads of problems with my iphone 3g on 4.01 The 3G and wifi don't work and its very slow. I want to wipe everything and rejailbreak and UNLOCK. Can I still do this without updating my baseband (I want 4.1 but there isnt an unlock?) and how do i do it? Should i plug it into itunes and press restore, or do the restore on the iphone settings menu?