Note: restoring an iPhone/ iPod to a new IPSW file will erase all data and install the new version of the device’s OS over it. We encourage you to make a backup of your content before proceeding with the update / restoration process.
2 - Connect device to computer
3 - Select your device in the list
4 - click the “summary” tab
5 - hold the Alt key (on Mac OS X) / the Shift key (on Windows) and hit “restore” (as shown in the screenshot below)
6 - iTunes will show a dialog allowing you to select the IPSW file you want your device restored to
7- select the IPSW firmware bundle you want to restore to and hit “choose”
8- be patient and wait for the installation process to be completed by iTunes
Here’s another important note (which Windows users should pay particular attention to; also, this is something that only applies if the user chooses to look for the desired IPSW file on the Internet). Your browser may change the IPSW file into a .zip file. For example, Microsoft’s Internet Explorer does this, if used to download the firmware bundle. This doesn’t mean it’s unusable. Instead of wasting time switching web browsers, just rename the file to end in “.ipsw” and iTunes will accept it.
Important note: SLIM-TECH does not encourage downloading iPhone / iPod update / restoration files from the Internet. Apple is the only legit source of IPSW downloads. Unfortunately, the company allows customers to download the latest version of the software only, but device owners can choose to save the older IPSW files they’ve previously downloaded and use them to revert to an older version.
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