What are the reasons for the sudden black screen of Apple 8plus?

One situation where the iPhone itself is unstable, resulting in a black screen. This kind of black screen can be attributed to an unstable automatic shutdown, which is because the machine is of poor quality, resulting in shutdown for no reason. Because there is no big problem with the hardware, you can just press and hold the power button and wait for it to turn on.

The second scenario. DFU mode is the mode in which the Apple system cannot be turned on if there is a problem, while entering the recovery mode can be recovered with iTunes. But the phone is fine, and it can't be turned on because it can't be turned on because it has entered DFU mode by mistake, but it's actually very easy to solve.

You only need to press and hold the power button and the home button at the same time and wait for the iPhone to react, generally for more than 10 seconds, if there is no response for tens of seconds, the following steps continue.

In the third case, you need to enter DFU mode, first of all, iTunes must be installed on the computer, and you can ** a new iOS system. Or restore files with a backup beforehand. Of course, during the recovery process, the computer can be connected to the Internet, and it can also be ****, but the wait is longer.

It may be that the screen display is faulty, you can try restarting the device.

When the Apple mobile phone suddenly has a black screen and can't turn on, usually people's first reaction is to restart the device, and the restart method of the iPhone several generations of devices is also different, taking the Apple 8 generation as an example, the iPhone 8, 8P, X force restart, the user needs to check the battery power, system software, appstore, etc. can be used normally, and then use it for a period of time to see if there will be a situation where the Apple phone suddenly has a black screen and can't turn on.

1. The boot line is abnormal: use an external power supply to supply power to the mobile phone, use the electric meter to detect whether the indication has changed, if there is no change, it is likely that the boot line is broken or the boot button is not in good contact.

2. The power supply circuit of the battery is abnormal: use the external interface to supply power to the mobile phone, see if it returns to normal when it is turned on, if it is normal, it is determined that the power supply circuit of the mobile phone is abnormal.

3. The IC of the mobile phone power supply is abnormal: test the test point of the peripheral circuit of the power supply IC according to the circuit schematic diagram to see whether the test value is normal.

4. The system clock and reset of the mobile phone are abnormal: you can use the dual total oscilloscope to detect the CPU power supply of the mobile phone to check whether the waveform in the reset is correct.

5. Problems with logic circuits: that is, faults in the circuit version of mobile phones, which can generally be solved by repair welding.

6. Software conflict: The installed software does not match the system of the mobile phone, which may also cause the mobile phone to fail to boot, you can connect the mobile phone to the computer to delete the program.

It may be that the screen display is faulty, you can try restarting the device.

Suddenly the screen on the apple phone went black.

When the phone can't be turned on, usually people's first reaction is to restart the device, and the restart method of iPhone generations of devices is also different, with Apple 8

Generation, for example, iPhone 8

8p,x forced restart,Users need to check the battery power,System software,Appstore, etc. can be used normally,And then use it for a period of time to see if there will be a situation where the Apple phone suddenly turns black and the phone is not envied。

Apple's black screen has sound and does not light up for the following reasons:

The sudden black screen may be caused by the busy system, that is, the machine is stuck, which can be solved by restarting. Press and hold the power off button and the home button at the same time until the Apple icon is released.

This method is to force a restart, and this can be solved when the machine is stuck. After the forced restart, it has not been resolved, and it is recommended to go for repair and testing.

If your iPhone has a black screen and won't turn on, you can try to force restart your phone: Stove Bright

Method 1: iPhone 8 and later models: Quickly press and release the volume up button, then quickly press and release the volume down button, and finally press and hold the Sleep and Wake button until your iPhone restarts.

iPhone 7 7 Plus: Sleep and hold the Wake + Volume Down keys at the same time.

iPhone 6S and earlier: Press and hold the Wake + Home button at the same time.

Method. 2. Use iTunes to restore Zhenwang factory settings.

If force restart doesn't work, you can use iTunes to restore your iPhone to factory settings. Please note that doing so will erase all of your phone's data.

Method. 3. Use a third-party tool to fix iPhone black screen of death.

When trying to fix black screen with iTunes, some users will encounter new issues, such as iTunes not recognizing your iPhone, iTunes error 4013, etc. If you are experiencing these issues, it is recommended that you use a third-party tool such as FoneGeek iOS System Repair Tool.

It is a professional repair tool that can easily fix many iOS system-related issues, such as iPhone black screen of death, non-stop restarting, stuck in recovery mode, update failure, and more.