2 After preparing the iTunes software, please connect the iPhone to the computer, open the iTunes software, recognize the iPhone and click the device icon.
Since all data on the current iPhone will be deleted after the operation, please back up important data first. In the summary management interface of iPhone, data can be backed up by instant backup. When the brush is finished, reconnect the iTunes software and restore it here.
4 Next, please press and hold the iPhone power button, and then slide it off, as shown in the figure.
five
Next, please follow the following steps to restore the system for iPhone:
First, please press and hold the power button to turn it on. At this time, Apple's logo will appear on the screen. Do not release the power button.
Second, then press and hold the Home button on the home screen until the screen turns black.
3. When the screen is black, please release the power button, and don't release the Home button on the home screen until iTunes on the computer detects the iPhone in recovery mode.
For the first-time friends, they may not be familiar with it. Just try it a few times.
6 Then in the iTunes window, click the Restore iPhone button, as shown.
7 Next, you will be prompted whether to resume the update. If you continue, all data will be deleted. Click the Restore and Update button to continue.
Finally, slowly wait for iTunes software to download the latest firmware system, and then it will automatically refresh and restore the iPhone.
Method 2
1
Some users may think that downloading firmware through iTunes software is very slow through the above methods, and want to download firmware manually by themselves, and then directly use iTunes software to restore it. If you want to restore the firmware you downloaded, it is ok, but you need to download it according to the iPhone model when downloading, and you need to download the latest firmware version, otherwise the firmware will be incompatible, which will lead to the failure of the brush. As shown in the figure below, the latest firmware version of iOS9. 1 is currently downloaded.
2
After downloading the firmware, let the iPhone enter the recovery mode as described above, starting from step 6. In the iTunes window, taking Windows system as an example, first press the Shift key on the keyboard, and then click the Restore iPhone button.
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Then in the file selection box, you can choose to download the video.