To format your iPhone 8, there are several steps you need to follow. It's important to note that formatting your iPhone 8 will erase all the data on the device, so ensure you have backed up everything you need before proceeding with these steps.
Turn off "Find My iPhone" from iCloud settings: Go to your iPhone's "Settings" app, click on your Apple ID, then "iCloud" and turn off "Find My iPhone." You may be prompted to enter your Apple ID password to complete this.
Back up your data: Connect your iPhone 8 to a computer and use iTunes to create a backup. Alternatively, use iCloud to back up your device.
Sign out of iCloud, iMessage, and FaceTime: Go to "Settings," then click on your Apple ID, and then "Sign Out." You will need to enter your Apple ID password and choose "Turn Off" for settings like iCloud, iMessage, and FaceTime.
Erase your device: Go to "Settings," then "General," then "Reset," and then "Erase All Content and Settings." Enter your device passcode and then confirm that you want to erase your device.
Wait for the erase to complete: The process may take several minutes to complete, depending on how much data is on your device.
Set up your iPhone 8 as new or restore from backup: Once the erase is complete, you can choose to set up your iPhone 8 as new or restore from a backup.
To set up as new, go through the initial setup process, such as language selection, Wi-Fi, and Touch ID.
To restore from a backup, connect your iPhone 8 to your computer, open iTunes, and click on "Restore Backup." Select the backup you want to restore and enter its encryption password if necessary. Keep in mind that the restore process can take some time.
In conclusion, formatting your iPhone 8 is a simple process that requires a few clicks in your iPhone's "Settings." However, since it erases all of your data, it's important to back up everything you need before proceeding.