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iPhone dead black screen (iPhone suddenly turns black and Okx app downloaddoes not respond? This is the easiest way to solve it) Have you ever encountered a sudden black screen when using your iPhone? This seems to be a very annoying question, especially when we are using our mobile phones. This article will show you how to easily solve the problem of iPhone dead black screen. The first method: Force restart Force restart is the most common and effective way to deal with the black screen problem of iPhone crash. The operation is very simple. Just press a specific button combination. On iPhone 8 and moreIn the earlier version, you can press and hold the "Home" and "Power" buttons for a few seconds at the same time until the Apple logo appears on the screen. In iPhone X and later versions, you can press and hold "Volume Up", then release it immediately and press "Volume Down again, and finally press and hold the "Power" button until the Apple logo appears. If you follow the above steps to force restart, the black screen problem of the iPhone should be solved in a few minutes. The second method: Use iTunes to fix it. If the forced restart method does not work, you can solve the black screen problem of iPhone freeze by connecting the device to iTunes and repairing it. Run the latest version of iTunes on your computer and connect your iPhone.Once the connection is successful, you can click the "Restore iPhone" button to start the repair process. Please note that during this process, you may need to make some settings, such as confirming whether your computer trusts the device. Please note that this method will restore the iPhone to the factory state, and you will lose all the data. Therefore, it is recommended to back up all data in advance and make sure that all important data have been saved. The third method: Use DFU mode DFU (device firmware upgrade) mode is a special iPhone recovery mode that can be used for more in-depth repair when solving the iPhone black screen problem. You need to pay attention to using this method, because it may cause you to lose control. First, connect the iPhone to the computer and open the latest version of iTunes.Next, press and hold the power button and the "Volume Down" button, and then release the power button in a few seconds but continue to press the volume down button. If you successfully enter DFU mode, the screen will turn black, and iTunes will prompt you that your iPhone has entered DFU mode. If you have implemented DFU mode, you need to select the corresponding option to repair the device. According to different needs, choose to restore from backup or restore the device to factory settings. Summary: When using the iPhone, the sudden black screen of the machine is very annoying. However, don't worry, the three methods introduced in this article can easily solve this problem, including forced restart, using iTunes to repair and using DFU mode to repair. Choose the appropriate method according to your needs and the actual situation of the equipment.Remember to back up all data in advance to avoid data loss.

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