Backing up your data to either icloud Finder, or iTunes on the computer is the first thing you need to do. This is to make sure you don’t permanently lose any data in the process. Next, you’ll need to connect your iPhone 12 to a computer with the latest version of iTunes installed using the included USB-C to Lightning cable. Mac users can use Finder instead of iTunes on macOS Catalina or later.
- First, press and release the Volume Up button on your iPhone. Immediately after, press and release the Volume Down button. Now, press and hold the side button for about 10 seconds until the screen turns black.
2 : Continue to hold the side button, but now, hold the Volume Down button too for 5 seconds. Now, take your finger off the side button and keep holding the Volume Down button for another 10 seconds. The screen will remain black.
Now, when you launch iTunes on PC or Finder on Mac, you’ll get a pop-up with a message stating “iTunes has detected an iPhone in recovery mode. You must restore this iPhone before it can be used with iTunes”. At this point, you can choose to restore your iPhone 12’s software
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