If your iPhone, iPad, or iPod touch is slowing down, a clean install of iOS or iPad OS may speed it up. Installing a new system software means that there are no third-party App Store apps, the configuration is broken, and the settings are broken. This can have a positive impact on performance. A clean installation can also fix problems that standard troubleshooting cannot solve.
There are several ways to do a clean install of iOS and iPad OS. The first method requires you to erase all content and settings using only your iPhone or iPad, and the second method requires you to reinstall the system software via your Mac or PC.
A clean install of iOS or iPad OS will erase your data, but you can always choose to pre-backup your files and settings. Then it’s up to you to start over or restore the backup and resume where you left off.
Erase all content and settings
iPhone and iPad have an integrated “Erase This iPhone / iPad” tool that allows you to quickly reset your device to factory defaults. It handles everything from creating backups of your data to iCloud, deactivating FindMy and ActivationLock, and erasing all bits of your personal data from your device.
The “Erase This iPhone / iPad” tool technically does not reinstall iOS or iPad OS, but this procedure restores the system software to a ready-to-use state from your iPhone or iPad. It’s also much faster and more convenient than performing a restore via a Mac or PC.
1. Open setting App from the home screen of your iPhone or iPad.
2. Select Universal >> >> Transfer or reset iPhone >> >> Erase all content and settings (IOS 15 / iPadOS 15 or later) or Universal >> >> reset >> >> Erase all content and settings (IOS13 / iOS14 / iPadOS 14 or earlier).
After the reset procedure, use the Setup Assistant to set up your iPhone or iPad.When you get to Apps and data On the screen Restore from iCloud backup Also Restore from Mac or PC Restore from backup. or, Do not transfer apps and data Start using your iPhone or iPad as your new device.
Restore device via Finder / iTunes
If you have access to your Mac or PC, you can use the Finder or iTunes to perform a real clean install of your iOS or iPad OS. Follow the steps below to disable Find and Activation Lock, back up your iPhone or iPad, and reinstall the latest version of iOS / iPad OS using IPSW (iPhone / iPad software) files. This method is best if you have problems using the “Erase This iPhone / iPad” tool above.
Note: If you are using a Windows PC, be sure to download iTunes from the Microsoft Store or Apple website before you start.
1. Go to setting >> >> Apple ID >> >> Find me >> >> Find my iPhone/ /iPad On your iPhone or iPad.
4. Launch new finder Window (if you’re using a Mac with macOS Catalina or later) or open iTunes.. Then select your iPhone or iPad in the Finder sidebar or in the upper left of the iTunes window.
5. Scroll down backup section. next, Back up all your iPhone / iPad data to this Mac / PC.. If you want to back up your Apple Watch health data and password, select the following check boxes: Encrypt local backup.. next, Backup now..
6. Wait for Finder / iTunes to complete the backup of the data on your iOS / iPad OS device.
7. Scroll up software Select a section and Restore iPhone/ /iPad..
8. Select Restore and update.
9. Select Agree I accept the software update license terms.
10. Wait for the Finder or iTunes to download the latest IPSW file for your iPhone or iPad, including all new features and bug fixes. It can take up to an hour, depending on the speed of your Wi-Fi or Ethernet connection. After that, the system software reinstallation will start automatically. In the meantime, do not disconnect your iOS or iPad OS device from your PC or Mac.
After reinstalling iOS or iPad OS Restore from this backup Select a backup to restore your data. or, Set as a new iPhone/ /iPad Start using your iPhone or iPad as your new device.
Try recovery mode or DFU mode
In most cases, resetting your iOS or iPad OS to factory defaults is enough to breathe new life into your iPhone or iPad or solve permanent software-related issues. If that doesn’t work, try reinstalling the system software using your Mac or PC.
If you cannot cleanly install iOS or iPad OS using both methods in this tutorial, you should use recovery mode or DFU (device firmware update) mode instead. These are special recovery environments that can fix critical device problems. You can also perform a clean install of the previous operating system version and downgrade your iPhone or iPad if needed without jailbreaking.