Every moment Apple releases a new firmware, properties prevent signing the older one, that leads to you technically can’t downgrade to a initial firmware by restoring. Fortunately, if you suffer your ECID SHSH on file on Saurik’s servers, when that happens you could be able to downgrade your iPhone according to iOS 4 to 3.1.3 or earlier.
Downgrade iPhone From iOS 4 to 3.1.3
The trick is to fashion iTunes suppose it is requesting a signature based on what i read in Apple’s servers additonally it is able to in essence be speaking to Saurik’s servers.
Downgrading of iOS 4 to 3.1.3 performs motivate you saved your SHSH on Saurik’s servers. If you haven’t, subsequently you can’t downgrade.
Downgrade of iPhone iOS 4 to firmware 3.1.3
- For Windows: Make absolute you are logged in through administrator privileges. Launch Notepad and navigate to C:/Windows/System32/drivers/etc. Add the next at the basically ground of the file: 74.208.10.249 gs.apple.com
- Now save the file returning at which you at last found it.
- for Mac: In Finder, some Go To Folder, and input /etc. Search the hosts file and better click on it to open provided TextEdit. Add the approaching at the really ground of the file: 74.208.10.249 gs.apple.com
- Click Save As to save the edited file on your desktop. Name the file hosts, and put up definite to uncheck the box the argues “if no extension is provide, use .txt”.
- Now drag and fall the current edited file to /etc.
- Step 2: Download the firmware you seek to downgrade to based on information from here.
- Step 3: Put your iPhone in DFU mode. Launch iTunes and plug your iPhone in. Press and have the housing and and sleep button up for 10 seconds. After spot on 10 seconds, release the sleep button additonally much invested in the house button. Keep owning the residence button until iTunes shows you it has at last found an iPhone in recovery mode.
- Step 4: Now have the Option key (Mac only) or Shift key (Windows only) additonally clicking the Restore button in iTunes. A dialog box would pop up and you’ll be able to decide on the firmware you downloaded in stage 2.
- Step 5: At this moment point, a small amount of of you is able to be fine. The iPhone can restore without any problem. However, selected of you will end up in recovery mode again. It’s ok. We just now would like to kick the iPhone out of recovery mode. To do so, download and launch iReb for Windows or iRecovery (both Mac and Windows).
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