Back up your iPhone data and settings using iTunes or iCloud before reinstalling iOS. You can then restore the backup after the refresh. Download and install the latest version of iTunes to reinstall iOS on your iPhone.

Can you delete and reinstall iOS?

There’s no such thing as deleting the operating system from the iPhone. You can only restore the device to factory settings and update it to the latest version of iOS. That’s something similar to erasing the hard drive and reinstalling a fresh copy of OS X on your Mac. Hope this helps!

Can you redownload iOS?

Here’s how to reinstall iOS on your iPhone or iPad:

Launch the app, and connect your device to your Mac or PC. Wait for your device to appear in iMazing’s Reinstall iOS screen and click Reinstall iOS.