How To Jailbreak Ios 4.2.1 On Iphone, Ipad Or Ipod Touch

http://www.colegiosentli.edu.mx/portal/index.php/forum/user/283882-w0tiskf102

To do that you need to pick the"Expert Mode then"Build IPSW" option. Our software solution will let you update to the latest iOS 4.2.1 and unlock and jailbreak it too. But these tools restore or won't upgrade firmware.