Can you jailbreak without an Internet connection?

[Ashere]

I downloaded redsn0w on my laptop. Now I am at work and really want to jailbreak, can I do it without an Internet connection? Any help with this is appreciated.

 

[jdavis530]

Yes you can do it without an internet connection as long as you have redsn0w and the ISPW file for 4.2.1. I am assuming that you are trying to jailbreak iOS 4.2.1. Am I right?

 

[Ashere]

Yes I am. I already have redsn0w and I updated to 4.2.1, so I should have the update in my iTunes file right?

 

[jdavis530]

No you physically have to download a copy of the iOS 4.2.1 ISPW to your computer, and load it through redsn0w. Here is a tutorial on jailbreaking 4.2.1 with redn0w:

Jailbreak iOS 4.2.1 iPhone 4, 3GS, iPad, iPod touch 4G with Redsn0w 0.9.6b4 [Guide] | Redmond Pie

 

[Ashere]

Oh ok I thought you would be able to use the one in iTunes. Redsn0w accepted it when I used it but i will wait to download it from that site when I get home. Thanks for the help