Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_0_1 like Mac OS X; nl-nl) AppleWebKit/532.9 (KHTML, like Gecko) Version/4.0.5 Mobile/8A306 Safari/6531.22.7) Hi all, I want to update my iPhone 4, currently on 4.0.1, to 4.2.1 or 4.3.3. I depend on ultrasnow, so i need to preserve the baseband (i have 1.59.00). Can I make a custom firmware using penqge tool and upgrade with preserving my unlockable baseband? I have the SHSH blobs for 4.2.1 and for 4.3.3. Do I need to edit my hostsfile before updating? Also, what is the best firmware to upgrade to? 4.2.1 or 4.3.3? Whitch is more stable? Thanks in advance!