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 ...
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 ...