Originally Posted by
takuma089 But I can delete the ipsw file so that it will require me to redownload the update again? So that no one can accidentally click that install that update
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As for the hosts file Massie had an easier idea rather than getting into the complicated task of editing the host file
Use Tiny Umbrella(TU)
For anyone using TU...check the "set hosts to Cydia" box in the Advanced settings in TU
If you ever want an official Apple update you uncheck it.
If you're still into editing the hosts file the info is below
Editing the hosts file
If you're on a Mac follow this link
host file editing
When in the hosts file put this in
74.20.xxx.xxx gs.apple.com
127.0.0.1 gs.apple.com
If you're on Windows
c:\windows\system32\drivers\etc\hosts
Open it in notepad and edit, you must have admin privileges or you wont be able to save your edited file. If you're unable to save it after the edit save it with a different name in the same location. Then get admin privilege and you can rename the old one hosts1 and rename the alternate you just created hosts
A sample of my hosts file near the bottom
::1 localhost
fe80::1%lo0 localhost
74.20.xxx.xxx gs.apple.com
127.0.0.1 gs.apple.com
I'm a little rusty on editing the hosts file so excuse me on any mistakes in the process this is why using Tiny Umbrella might be a much easier way to do it.
iDonev has already given you links for finding the ipsw on your machine and as far as I know you can't prevent the update from showing up in Settings for OTA update. I didn't realize that is what you meant by your question.