iOS 12 Firmware Restore on iPhone X, iPhone 8/8 Plus, iPhone 7/7 Plus, iPhone 6S/6, iPhone 5S/5 to factory settings. We have a restore file (.ipsw or firmware) but unable to install or don’t know the steps for restore in iOS device. Erase all the content and settings to update the latest version of iOS using iTunes on Mac or Windows Computer. Using this way you can install iOS 12 on iPhone & iPad using iTunes.
Prerequisite: You need Active Developer account and Supported iOS 12 device (iPhone/iPad). High-Speed internet connection for fast installation and 3 to 4GBs free Storage (Free Up Storage space to install iOS 12).
Step by Step guide: iOS 12 Firmware restore on iPhone using iTunes
Firmware is iOS 12 installation file that we can use for install or update old iOS. File extension is .ipsw
1: First Download iOS 12 ipsw file for your iPhone model.
2: Connect your iPhone to iTunes via lightning cable.
3: Unlock your iPhone/iPad with Passcode and Allow permission to access your iOS device on Your Mac or PC – Go with Accept.
4: Find iPhone/iPad device on iTunes. Click on it and See device summary page.
- Mac Keyboard shortcut for Browse and Restore .ipsw file in iTunes: Option + Click on Restore button.
- Windows Keyboard shortcut for browser and restore ipsw file in iTunes: Shift + Click on Restore button.
Select iOS 12 Software Restore image [.ipsw], Now Click on Open to start the installation.
Might be your iPhone will restart or reboot many times. It will take time depends on data saved on your iPhone and iPad. Turn on the internet connection to activate your iPhone.