If Force Restart doesn’t work, you’ll need to Enter Recovery Mode
If your device is still frozen, you’ll need to use a Mac or Windows computer and have a compatible cable. Connect the frozen device to a computer. Do not disconnect it! If you’re using a Mac running MacOS Catalina or later, open the Finder. If you’re using MacOS Mojave or earlier, open iTunes. On a Windows computer, open Apple Devices or iTunes.
If you’re using the Finder, on an iPhone X or later, a second-generation iPhone SE or later, an iPhone 8 or iPhone 8 Plus, press and quickly release the up volume button. Do the same to the down volume button. Next, press the power button on the right side until the Recovery Mode screen appears which could take a couple of moments.
Your Mac or Windows computer can help you update your iPhone or iPad
On your computer screen, there should be an option to update your iPhone or iPad. Click on Update and the latest compatible version of iOS or iPadOS will be installed on your device. Apple says to follow the prompts and keep your device connected as long as the Apple logo and the progress bar are on the screen. You might have to agree to the Terms and Conditions of the software in order to install it and get your iPhone and iPad functioning again.
If you can’t install the update for one reason or another, you will see a prompt asking you to perform a factory reset on the device. You’ll need to use a backup to restore your data, so make sure to back up your device before you start on this journey. If the download is longer than 15 minutes, you will get kicked off of recovery mode and you will have to start from scratch to re-enter.
