DFU (device firmware update) - A special mode designed to completely reinstall the firmware of your device. In the process of reinstalling via DFU on the device, the following is performed:

• bootloader firmware;
  
• bootloader start;
  
• firmware of all additional modules;
  
• creating file system partitions;
  
• flashing system partitions.

Many people confuse DFU mode withRecovery mode(recovery mode). ATRecovery modeThe screen shows the USB cable and the iTunes icon.In DFU mode, there are no identifiers on the screen, the screen is completely black.
Difference dfu andRecovery Modeis that a fundamentally different approach to recovery is used.

Recovery Mode- software firmware mode, in which recovery mode is similar to Windows rollback to a previously created restore point. The main system files are not affected, but only the settings and parameters are restored.
DFU is the bootloader mode. Recovery in this mode is similar to a complete system reinstallation when the necessary components are recreated.

• Connect the device with a working cable to the computer.
  
• Turn off the device
  
  
  
  
• Make sure that the device has completed all operations and turned off.
  
• Get ready for the countdown.
  
• At the same time, press and hold the Home button (at the bottom of the front panel) and the Power button (at the top); Hold the buttons down for 10 seconds.
  
• Release the Power button (at the top), while continuing to hold the Home button (at the bottom of the front panel).
  
• Hold the Home key until iTunes detects a new device in recovery mode (approximately 10-20 seconds).
  
• Now you can safely flash your device. To restore to the current version of iOS, simply agree with the suggestions of the wizard: iTunes will download the firmware on its own and carry out all the necessary manipulations.
  

Attention! On iPhone7, instead of the Home button, the volume down button is used!
Graphic option
Video instruction
Video instruction for iPhone7 / iPhone7 +

Post has been editeddirectorgeneral - 01.10.16, 12:13

Graphic option: "How to enter the DFU mode"

Method 1.


Method 2



iPhone7 / iPhone7 + / iPhone8 / iPhone8 +

1. Press the Power button(on off)and count to 3 seconds
   
   
2. Next, without releasing the Power button, we hold down the volume down button. Count up to 10
   
   
3. Release the Power button and continue to hold the Volume Down button.
   
   As you can see, the way to enter DFU on iPhone7 / iPhone7 + / iPhone8 / iPhone8 + is identical to that used on previous models with the only difference that instead of the Home button, the volume down button is used.

Post has been editedT0ugh - 01.11.17, 13:49

How to enter DFU mode?

iPhone 6S, SE and below, iPad, iPod touch

1. Connect the device to the computer.
2. At the same time, press and hold the Home button and the top (or side) button.
3. After 8 seconds, release the top (or side) button, continuing to hold the "Home" button.
If the Apple logo appeared, the top (or side) button was held for too long.
4. In DFU mode, there are no identifiers on the screen, the screen is completely the black , iTunes will report that the device is in recovery mode.
If the device displays a screen that tells you to connect the device to iTunes, repeat these steps.

7 iPhone, iPhone 7 Plus, iPad 6, iPod touch 7

1. Connect the device to the computer.
2. Simultaneously press and hold the side button and volume down.
3. After 8 seconds, release the side button while continuing to hold the volume down button.
If the Apple logo appeared, the side button was held for too long.
4. In DFU mode, there are no identifiers on the screen, the screen is completely the black , iTunes will report that the device is in recovery mode.
If the device displays a screen that tells you to connect the device to iTunes, repeat these steps.

iPhone 8, 8 Plus iPhone and iPhone X, XR, XS, XS Max, 11, 11 Pro, 11 Pro Max, iPad Pro 11, iPad Air 3, iPad Mini 5

1. Connect the device to the computer.
2. Press and quickly release the volume up button.
3. Press and quickly release the volume down button.
4. Press and hold the side button until the screen turns black, then press and hold the side button and volume down.
5. After 5 seconds, release the side button while continuing to hold the volume down button.
If the Apple logo appeared, the side button was held for too long.
6. In DFU mode, there are no identifiers on the screen, the screen is completely the black , iTunes will report that the device is in recovery mode.
If the device displays a screen that tells you to connect the device to iTunes, repeat these steps.

How to exit DFU mode?

iPhone 6, SE and below, iPad, iPod touch

пїЅ At the same time, press and hold the Home button and the top (or side) button until the device reboots.

7 iPhone, iPhone 7 Plus, iPad 6, iPod touch 7

пїЅ Simultaneously press and hold the side button and volume down until the device reboots.

iPhone 8, 8 Plus iPhone and iPhone X, XR, XS, XS Max, 11, 11 Pro, 11 Pro Max, iPad Pro 11, iPad Air 3, iPad Mini 5

1. Press and quickly release the volume up button.
2. Press and quickly release the volume down button.
3. Press and hold the side button until the device reboots.

Post has been editedT0ugh - 16.05.20, 22:47