More challenging issues, however, might need a more comprehensive approach, called DFU Mode.
you’re able to use this mode on any iOS gadget.
Putting a rig into DFU mode is similar to Recovery Mode.
If the unit won’t turn off, continue to hold thePowerbutton andHomebutton after the slider appears.
Eventually, the rig will turn off.
Release the buttons when the gear powers down.
With the rig off, if you have aniPhone 7or newer, hold theSleep/Powerbutton and theVolume downbutton.
Hold these buttons for 10 seconds.
If you hold too long, the gadget goes into Recovery Mode instead of DFU mode.
The Apple logo appears when the machine goes into Recovery Mode.
If the machine screen is black, it’s in DFU Mode.
If iTunes recognizes that the iPhone is connected, you’re ready to proceed.
What Is DFU Mode, Anyway?
The iPhone machine Firmware Update (DFU) Mode makes low-level changes to the software running the machine.
Recovery Mode is usually the only thing you’ll need.
Using DFU Mode to downgrade the OS or jailbreak the unit can damage it and violate the warranty.
FAQ
To exit iPhone DFU Mode, turn off the rig.
Hold theSleep/Powerbutton until the slider appears, then move the slider.
you’re free to put an iPad into DFU Mode in the same way you do your iPhone.
Simultaneously press and hold the power button and the Home button until the screen turns black.
