What are the reasons why Apple X suddenly turns on and doesn t turn on?

There are several reasons why your iPhone won't turn on:

First, the reason for the crash is that the machine cannot be turned on.

1.The mobile phone can't be turned on, it is divided into many kinds, if there is a crash failure.

2.Then there is no need to make a fuss, just contact Apple's after-sales staff to make an appointment for testing.

3.If you press and hold the power button and it doesn't turn on, remember not to try again, so as not to cause the phone system to malfunction.

Second, the reason for the system.

1.Many users have reported that after the mobile phone upgrades the system, the mobile phone begins to turn on.

2.If it is a situation where the phone starts to turn on after upgrading the system, or if there is another fault, then you only need to connect to iTunes and fix it.

3.Or you can use other mobile assistant software to fix it.

3. Hardware failure.

1.The Apple phone can't be turned on, check if there is a problem with the switch button of the phone, or if there is a hardware problem in the phone.

2.Contact after-sales for consultation and repair.

Reasons why the Apple phone can't turn on:

1. There is no electricity. If you use up all the battery power, the charge needs to be charged to 5% before it can be turned on normally. So in this case, please let the phone charge for a while before trying to turn it on.

2. Software malfunction. If you are sure that the current battery of your phone is sufficient, but it cannot be turned on normally, there may be a problem with the software system of your phone. At this time, we can try to press the home button + power button on the home screen of the mobile phone at the same time until the screen is lit up and there is a display.

3. System crash. If none of the above solutions work, and you see an iTunes connection screen on your iPhone's screen, it means that your phone has entered recovery mode at this time. When this happens, the only way to do this is to restore the system for your phone.

Connect your phone with the computer with a data cable, press and hold the home button and the power button at the same time for 10 seconds, then release the power button and continue to press and hold the home button for 5 seconds, if you see the connection to iTunes, it is a failure, and you have to start again. If the screen doesn't light up after these 2 steps, you will enter DFU recovery mode, and then you can use iTunes to restore your iPhone, or use a third-party flashing software to reflash your iPhone.

The iPhone X will not turn on, first of all, we can connect it to the power supply to ensure that the iPhone X can get enough power to boot.

After connecting the power supply, we can press and hold the power button to try to turn it on, if it can't be turned on, then it may be a system problem and need to force restart.

iPhoneX is forced to turn on, we need to press the volume up button once to release, then press the volume down button to release, and then press and hold the power button until the restart sign appears.

If the iPhoneX force reboot still can't boot, then it is likely that the operating system has crashed, and at this time, our brother needs to restore the operating system of the iPhoneX.

Connect your iPhoneX to the computer with iTunes installed, and then open iTunes, the software will automatically back up and restore the phone system, and some phones will automatically restart after connecting to the computer.

If restarting, resetting and other methods can't get the iPhoneX to turn on, then it is very likely that there is a problem with the iPhoneX hardware, and it is best to send it to a professional repair point for inspection and repair.

1. Unable to turn on due to the instability of the mobile phone itself: the Apple mobile phone cannot be turned on and the screen is black.

In the case of a freeze, it may be because 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. Just press and hold the power button and wait for it to turn on, or you can use the force restart method, which won't erase the content on the device.

Even if the screen goes black or the buttons are unresponsive, you can force a new boot device to be re-installed, and you can start with confidence.

Force restart method: Just press the volume up button, volume down button and release it quickly, and press and hold the side button until you see the Apple logo to complete the force restart.

2. Automatic shutdown and inability to turn on due to mobile phone hardware failure: such as battery failure, motherboard chip failure, internal circuit failure or other parts of the mobile phone failure, etc., contact the official after-sales service of the local Apple store for maintenance and resolution.

When the mobile phone suddenly can't turn on, many people will be very worried, on the one hand, they are worried about the scrapping of the mobile phone, on the other hand, they are worried about the high repair cost, and there are many reasons why the iPhone cannot be turned on.

If this is the case, the phone cannot be stuck, plug in the power supply, if you see the charging sign on the screen, wait for the power to be charged to about 5%, and then you can turn on normally.

Hardware failure After plugging in the data cable, the device does not have any response, which mostly occurs in the case of hardware failure in the device storage section, which is common in the case of water ingress between devices. In such a situation, it is recommended to send it for repair and repair it by professional maintenance personnel.

Software Failure If the battery is sufficient, and it still can't be turned on normally, it may be that there is a problem with the mobile phone system, and you need to press the home button and the power button at the same time until the screen lights up; If you're not sure if the battery is charged, you can try plugging your phone into a power source and then pressing the power button and home button at the same time.

System Crash 1Open the PC side of the AIS assistant, click the "Restart" function in the Toolbox, if it can be booted normally, it will return to normal, if it is not successful, then proceed to the next step.

2.Flash the AIS Assistant to restore the firmware.

iPhone 12 does not turn on is generally divided into several situations, 1. The software and system are incompatible and stuck.

2. Battery problems.

3.Problems with the motherboard chip.

First, you can press the volume up, then press the volume down, and then press and hold the power off button for 5 seconds. This kind of system problem can basically be solved in seconds, you can try it.

Second, the battery problem is good to replace the battery.

Third, the motherboard problem does not necessarily mean that the motherboard must be changed.

Motherboards are made up of hundreds or thousands of small chips, capacitors and resistors.

Including CPU, power chip, power supply chip, display chip, hard disk, baseband circuit.

Generally, it is only necessary to find out the faulty chip to replace, and there is no need to replace the entire motherboard at all.

Many chain masters in small places don't know how to repair the motherboard, and when you encounter the problem of the main guessing board, you will be asked to replace the whole thing.

It's very unnecessary, the chip is only a few hundred smaller.

It costs 23,000 to change the motherboard. Shed Zhaohe.

I've been doing motherboard repair work in Apple factory stores, so I know a lot about these.