1
vote
2answers
409 views

Can I get the ipsw file off my iPhone 3gs and install it on my iPhone 4s?

I still have my old iPhone 3gs (AT&T) with iOS 6. I have a back up of it as well. I also have a iPhone 4s (Sprint) with iOS 7. Can I grab the ipsw file off my iPhone 3gs and install it on my ...
8
votes
1answer
3k views

What are the direct download links for iOS 7.0?

Direct download (i.e. from Apple servers) links for officially-released iOS firmware versions through 6.1.4 are listed here, with checksums: http://theiphonewiki.com/wiki/Firmware These firmware ...
1
vote
1answer
283 views

Can an .ipsw firmware restore image's origin be verified?

Given an .ipsw iOS firmware restore image, can its origin be verified (e.g. through checking a digital signature) to provide assurance that it is actually from Apple and it hasn't been tampered with?
1
vote
2answers
574 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
870 views

Memory exhaused error in Redsn0w

When I tried to build a custom iOS 5.1.1 firmware (ipsw file) using redsn0w 0.9.12b1 almost in the beginning of the process I receive a message: Custom IPSW creating failed Memory Exhaused ...
1
vote
1answer
884 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 ...