Zeroing the iPhone, like any other operation provided by Apple, does not present a problem for the user of this device. The only obstacle may be the previously performed jailbreak of the device.
It is necessary
iTunes
Instructions
Step 1
Press and hold the on / off button located on the right side of the device until a red slider appears on the iPhone screen.
Step 2
Press and hold the Home button (the round button on the bezel at the bottom of the device) for 6 seconds until you exit any running applications.
Step 3
Turn off your iPhone and turn it back on.
Step 4
Press and hold the on / off button located on the right side of the device until a red slider appears on the iPhone screen. Drag the slider from left to right.
Step 5
Wait for the Apple logo to appear on the screen of the device.
Step 6
Reset iPhone by pressing the On / Off and Home buttons at the same time. Keep the buttons pressed until the Apple logo appears on the screen of the device.
Step 7
Open the "General" item of the "Settings" main menu and go to the "Reset" section.
Step 8
Select "Reset All Settings" to reset iPhone.
Step 9
Select "Erase All Content and Settings" to clean your iPhone completely.
Step 10
Use the rest of the Reset section (Reset Network Settings, Reset Keyboard Dictionary, Reset Home and Reset Placement Alerts) as needed.
Step 11
Restore iPhone by connecting your device to iTunes.
Step 12
Select iPhone in the sidebar of the program and select the "Restore" command to erase all content and device settings and reinstall the software.
Step 13
Use the method of flashing from recovery mode for devices with a previous jailbreak. Resetting the settings of such a device can lead to a brick state, when, in order to restore the device, it is necessary to carry out an operation to restore the factory settings and re-jailbreak.