1
vote
2answers
549 views

Downgrading an iPhone 4 from iOS 6 to iOS 5.1.1 using iTunes with a restore.ipsw file

Can I downgrade an iPhone 4 from iOS 6 to iOS 5.1.1 using iTunes if I have a 5.1.1 restore.ipsw file? I have watched this video on YouTube and was wondering if that works for downgrade. I dont need to ...
0
votes
1answer
186 views

I saved my iOS 5 SHSH with TinyUmbrella, and now I have 4.1 shsh too?

Basically I launched "Save SHSH" from TinyUmbrella (for the first time ever), and now n Saved SHSHs for iPod Touch list i get iPod 3G 4.1 Does this mean I can downgrade to iOS 4.1? How is this ...
3
votes
2answers
500 views

iOS and Firmware differences

Is the iOS operating system the same thing as the phone's firmware? Basically, when reinstalling the firmware (such as with DFU mode), are the system files being reinstalled, or something else? What ...
3
votes
2answers
445 views

What does a vanilla jailbreak offer over a vanilla iOS firmware?

Based on my experience for the two minutes for which my device was jailbroken, I saw little difference between a jailbroken device and nonjailbroken device. All I noticed was a little Cydia icon. ...
1
vote
1answer
793 views

What is in an IPSW file?

I know that an IPSW is an iOS firmware restore file. When you want to install a beta firmware, Apple ships these. This website stores all old iOS versions in that format. What exactly is in an IPSW ...