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There are many reasons why your phone shows a black screen, system issues, software conflicts. If the screen is damaged, it will be illuminated as a black screen, and it is generally recommended to perform the following steps to troubleshoot and deal with it:
1. Back up your phone data (**book, short message, multi** file, etc.), and restore the factory settings.
2. Connect the charger to see if there is a charging display, if there is a charging prompt, you can charge it for a while and then turn it back on.
3. If you can operate the phone after restarting or charging, uninstall the third-party plug-in program that was operated before the black screen.
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I did the same on my phone on Friday, and I took the card out and put it back in. The result shows the sign of charging, take the charger with the converter and charge it.
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Mine is the same, but I bought it in a physical store, not far from me, and it's weird, I went to his place and it was charged at once, and then I went home and couldn't charge it, and I went to him again, and he changed my head, and he said it might be a socket.
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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 the screen of your iPhone 7, it means that the 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.
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Apple 8plus suddenly black screen, can't turn on the machine, there are two possible reasons:
1. Software Failure.
1. Try to restart your phone, I found that many people's force restart method is wrong, and the correct one is as follows.
2. If it still can't be solved, it is estimated that it is a hardware failure
1. Generally, the reason for not turning on is the problem of the motherboard chip or board line, which needs to be detected to determine
2. Detect all chips on the motherboard, including CPU, display chip, touch chip, power chip, battery and board line through the current instrument;
3. Check if one of them is blackened, short-circuited, or soldered. It is then repaired by chip transplantation technology.
Nowadays, many dishonest maintenance masters let users replace the motherboard if it is a motherboard problem.
The cost of replacing the motherboard is very expensive, in fact, you only need to repair some chips on the motherboard.
There is no need to replace the motherboard at all, and the cost of repairing the chip is only a small part of the cost of replacing the motherboard.
I have been doing Apple's chip-level maintenance work, and I know all about these.
For example, the picture below is the failure of the motherboard power chip, and it is only 2300 yuan to change it for reference <>
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The iPhone suddenly has a black screen, can't turn on, and the phone can't be charged, and there is no solution to the letter reaction.
First, the tool raw materials.
1. Apple iPhone.
Second, the method steps.
Method. 1. Force the phone to restart.
1. When there is no response when the Apple iPhone phone freezes, you can try to press and hold the "Power and Home Screen" buttons of the phone at the same time and keep them for more than 10 seconds.
2. If the forced restart of the jujube wheel rock reed fruit is successful, you can see an apple logo on the screen later.
3. After the reboot is successful, you can use the phone normally. In addition, for some friends who like jailbreaking, you may often encounter the problem that your phone freezes and restarts automatically. In addition, I like to be a guinea pig, and when I update the iOS test firmware, there is a chance that there will be a black screen of crashes.
These failures can be solved by trying this method first.
Method. 2. Charging.
1. Of course, sometimes it may be because the phone is out of battery, resulting in automatic shutdown, no matter how you operate, it can't be turned on. When this happens, please plug your Apple iPhone into a power charger first.
2. If it is automatically turned off because of the lack of power, a battery icon will appear on the screen at this time. In addition, the battery of the iPhone needs to be charged to more than 5% before it can be turned on normally, if the battery is very low, please let it charge before turning it on.
3. If there is still no response on the screen after connecting the charging power supply to the Apple mobile phone, then press the first method to operate, and press the "Power + Home Screen" button at the same time, and hold it for more than 10 seconds.
Method. 3. Hardware failure.
1. If the above two methods work, it may be a hardware failure of the Apple mobile phone, and it is recommended to send the mobile phone for repair to an Apple authorized after-sales service store for testing.
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1. Conduct a self-test on your phone. Most brands of mobile phones have a deep sleep mode, and once you enter this mode, it will often cause the phone to go black.
Won't turn on. Solution: Press and hold the power button of the phone for more than 10 seconds to see if you can force restart.
Or at the same time, you can press and hold the volume up button and the power off button, and feel the phone vibrate and force it to restart. Generally speaking, this step can solve the problem of black screen on most mobile phones.
2. The battery is dead or malfunctioning. Solving this problem is as simple as connecting the charger for a while and then trying to turn it on. You can also directly detach the battery and use the universal charger.
Charge and see if the battery's connectors are loose.
If it can be turned on after charging, it means that the battery is just dead. If it still doesn't work, you can try a different battery. Check if the battery is faulty and no longer has power.
3. In addition, a violent fall on the mobile phone may also cause the mobile phone to have a black screen. This is a troublesome situation, and it is likely that the hardware of the phone is malfunctioning, so it will have to be repaired.
Extended Information: Common troubleshooting of mobile phones:
Symptom: The phone crashes.
1. There are too many programs running in the background.
Open an app, after using it, most people return to the desktop of the phone by pressing the back button of the phone, thinking that this is to quit the app, but in fact there is no real exit from the app. As a result, more and more apps run quietly in the background over time, and when the number reaches a certain level, it will cause the phone to crash.
Many people will be too lazy to upgrade the app, but when the app version is too low, it will be incompatible with the mobile phone system. In the same way, when the mobile phone system version is too low, it will not be able to meet the requirements of APP operation. As a result, there will be a flashback.
Upgrade to a new version or upgrade your phone system to a new version, and then restart your phone.
3. Mobile phone poisoning.
Mobile phone applications installed from unknown sources** may carry malicious**, resulting in mobile phone poisoning or anti-virus software.
Interceptions will cause flashbacks.
4. Software conflicts.
There are too many software installed on the phone, and due to the different degrees of optimization of each, it is easy to have conflicts and crashes. In particular, if there are too many installations of the same type of software, this phenomenon is more likely to occur, after all, there is a competitive relationship between each other.
Solution: Check your phone once in a while, and uninstall some apps in time if you don't use them. Try not to install too much software of the same type, and it is recommended to use small programs for occasional use.
As far as it goes, thanks to Android.
The mobile phone will produce more and more cache files, and the mobile phone will crash when it exceeds a certain load.
Solution: Regularly clean and accelerate the mobile phone, and clean up the application software that occupies a large amount of memory.
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1. The iPhone itself is a refurbished machine or other machine with quality problems, and there will be an unstable black screen in occasional cases, but it is not the damage of the 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.
2. Apple's mobile phone has entered Apple's DFU mode due to accidental factors, which is Apple's recovery mode. All you need to do is press and hold the power button and home button on your phone at the same time, wait for your phone to react, and usually after 10 seconds, your phone will turn on and light up automatically.
3. The screen of the Apple mobile phone is broken, resulting in a black screen, and it needs to be sent to an Apple repair point for repair.
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First, the iPhone itself is a refurbished machine or other machine with quality problems, and occasionally there will be an unstable black screen, but it is not a damaged screen.
The second, which entered Apple's DFU mode by chance, is Apple's recovery mode.
The third possibility is that the Apple system won't boot.
The fourth is that the hardware is damaged and the screen is broken.
It needs to be sent to the Apple after-sales center for repair
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The first motherboard is short-circuited, the second system crashes, and the third screen display cable is broken, I feel that it should be the motherboard CPU virtual soldering that causes the motherboard to short circuit, there is no solution to this, and the people in the mobile phone store can't solder it for you.
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I can't turn on the phone, only to get to the repair point to find someone to repair and turn on, and then check what is the cause of the mobile phone: First, it may be caused by hardware damage. Second, it may be caused by a system crash and a problem.
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Apple customer service has technical support.
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It's a display problem, or a battery problem, so it's recommended to try a different battery.
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Reasons for the black screen of the iPhone:
One: The hardware is damaged and the screen is broken.
Two: It may be that the Apple system cannot boot.
Three: Entered Apple's DFU mode under accidental factors, which is Apple's recovery mode.
Four: It may be caused by an internal conflict in the software you have installed. In serious cases, the screen will restart and so on. It is recommended to bring your mobile phone to the 8th floor of Block B, East 3rd Ring Road, Chaoyang District, Jianwai SOHO, East 3rd Ring Road, Chaoyang District for inspection and maintenance.
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It may be a broken contact, it is recommended to take it to a mobile phone store to find a professional look.
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Causes
Problems with your phone's hardware.
1. Test it with an external power supply. After plugging in the charging device, if it can be turned on, it is a problem with the battery, and you can buy a battery replacement.
2. If you don't know if it's a battery problem, see if there is a problem with other hard Zen parts, such as a broken mobile phone screen or a black screen caused by water inside, this must be sent for repair.
Recommended when using a mobile phone:1: Try to pick up in an area with a good signal**;
2: Reduce the talk time in the area where the signal quality is not closed well;
3: If you play for a long time, it is best to use wired headphones to call**.
In fact, the most important thing is not to play for too long.
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