DFU is a compulsory upgrade mode for IOS devices. To enter this mode, iPhone7Plus needs to be operated through the side volume keys and the power button.
The detailed operation method is as follows:
1. When the phone is turned on, use the data cable to connect the phone to the computer, and confirm that the device manager has recognized the iPhone.
2. Press the shutdown button first, when the shutdown menu appears on the screen, press the volume down button at the same time, the system will force restart after 4 seconds.
3. When the phone screen is black, keep pressing the volume down button and power off button for about 7 seconds, and then release the power button.
4. If the above operations are correct, the computer will emit a beep that recognizes the new hardware after 7 seconds. At this time, release the volume down key to complete the operation.
Precautions
- iPhone7 series To exit DFU: press the volume down button and the power on/off button at the same time, release all the buttons after 8 seconds, and then the screen will show black apple , and then you can enter the system.
- If you want to flash the phone of iPhone 7 and above, please use the original data cable for operation.
- When the iPhone enters DFU mode, it will always be in a black screen state. Therefore, it is recommended to use a data cable to connect to the computer when performing the above operations to confirm whether the phone enters DFU. If the computer has not installed the flashing software, the iPhone needs to install the driver after entering DFU. It is recommended to install iTunes before operation,In order to simplify the operation.
