Hello people, I know this thread already exists but, i have a slightly different problem. When i try to update my iphone 4 32gb (GSM) to ISPW 5.0.1. I get : this device isn't eligible for the requested build. I have read about changing the host file, and followed the description. When i got to the host file : /private/etc/hosts The line "18.104.22.168 gs.apple.com" simply isn't there. So i assume this is alright. Then i downloaded tiny umbrella, same here the box with : Set Hosts to Cydia on Exit is already unchecked. I'm running OSX Lion 10.7.4 and everything is up to date, including Itunes. My Iphone is running 4.2.1 on firmware 03.10.01 and is jailbroken on another computer. Please help, i've been at it for about 5 hours now but can't find a solution on the web.... Many thanks!!!!