How do I Reset my iPhone?
To do so on your iPhone, go to Settings > General > Reset > Erase all content and settings and enter the passcode to confirm erasing of all data. Follow these steps below on how to reset your iPhone using iTunes:
How to reset iPhone or iPad to default settings?
Step 1. Access the reset options on your iPhone or iPad The first thing you must do is open the Settings. On the Settings screen, scroll until you find the General entry, and then tap on it. At the bottom of General settings, tap on Reset.
What happens when you reset your iPhone?
Reset All Settings: This will reset just the settings and won’t harm or affect your data. Erase All Contents and Settings: This will totally erase the iPhone. It will erase and reset your data, settings and every other thing on the phone.
How do I restore my iPhone settings from a backup?
For example, if you’re trying to solve a problem but returning settings to their defaults doesn’t help, you might want to restore your previous settings from a backup. Go to Settings > General > Transfer or Reset iPhone > Reset. WARNING: If you choose the Erase All Content and Settings option, all of your content is removed.