0 1 First, prepare a computer with Windows installed and install the latest version of iTunes software, which can be downloaded from Apple official website.
After the download is completed, install the computer. The installation is simple, just click the prompt.
Next, connect the computer to the iphone and open the iTunes software.
04, follow these steps to put the iPhone in recovery mode:
First, please press and hold the power button to start the phone;
Second, then press and hold the Home button on the home screen until the screen turns black.
Third, when the screen is black, please release the power button, and don't release the Home button of the home screen until iTunes on the computer side detects that an iPhone is in recovery mode.
Then in the iTunes window, you can see that there is an option to restore the iPhone button, select it and perform its steps.
Next, once it is restored, you will be prompted to delete all the data of the mobile phone. Click the Restore and Update button.
07, iTunes will automatically download the latest firmware system for the current device. After the download is completed, the system will automatically restore the iPhone.