How to clean up all the information in iPhone?

1. Open the phone, find the setting options on the phone desktop, and click Enter.

2. Find the "General" item in the setting interface, and then enter the general setting interface.

3, in the general settings interface, find the "recovery" settings, enter the system related recovery operation interface.

4. In the reset settings interface, find the item "Erase all contents and settings".

5. If there is something important, it is recommended to back it up before erasing all the contents and settings, otherwise it will be very troublesome to recover the data; After confirming "Erase all contents and settings", the iphone will return to the factory state of the mobile phone.