To ensure that these directions to work it’s important to have in the past jailbroken on an prior firmware model and opened Cydia permitting it to save lots of your SHSH on file. Take a look at the home windows model here
Launch a new Finder window by clicking its icon in the dock.
Locate the hosts file in the folder that opens then control+control to bring up the contextual menu.
Enter your administrative username and password when prompted then click the OK button.
You at the moment are able to downgrade your
tool. Merely put the iPhone into DFU mode and in iTunes Choice+Click on the Repair button to make a choice the firmware you want to downgrade to. In case you get error message 1011 or 1013 simply ignore it. For those who get error 1015 message repeat the complete repair then jailbreak after it fails the 2nd time.