How to delete the rest of Apple's mobile phone

Other deletions in Apple's mobile phone storage need to be erased. The search method is as follows:

1. Take Apple 7 as an example and click "Settings", as shown in the figure below.

2. Click General again, as shown in the figure below.

3. Click "Restore", as shown in the figure below.

4. Click "Erase all contents and settings", as shown in the figure below.

5. Click "Erase Now" again, as shown in the figure below.

6, and then enter the unlock password to verify identity, as shown in the figure below.

7. Finally, click "Erase iPhone", as shown in the figure below.