What should I do if iPhone 6S black screen not showing?

6S "Sleep and Wake Up" button on the right side of the phone;

Press and hold the circular "Home" button at the bottom of your phone at the same time;

If the Apple interface has not been able to appear, it proves that the motherboard of the iPhone6S mobile phone is faulty.

The motherboard is made up of many chips, capacitors, and power lines. To determine which component failure causes the failure to turn on, professional maintenance personnel are generally required to do it, and the method is roughly as follows:

By detecting whether the current value on the motherboard is too large, if it is too large, it proves that a short circuit on the motherboard or some components is caused.

Take the scented rosin method to test the specific components of the motherboard whose temperature is too high, and professionals can see it by visual inspection at this time.

After identifying the specific short-circuited components, the short-circuited components are replaced by value-shifting and soldering techniques.

Press the power button again to power on the test.

iPhone reboot tips:

1. Press the home button and hold it for 6-8 seconds to exit any program that can get your iPhone stuck.

2. Try to press and hold the power and off button, if it can be restarted, this is the best.

3. If that doesn't work, try pressing the home and hibernate wake-up buttons at the same time, and hold it for about 10 seconds to force it to shut down!

4. If the above methods don't work, you can try to connect to the PC and use the [Restart] function in PP Assistant, iTools and other tools.

the "Sleep and Wake" button on the right side of the phone;

2.Press and hold the circular "Home" button at the bottom of your phone at the same time;

One. Basic concepts.

1.A black screen is a common phenomenon, especially on older computers or builds. There are many reasons for the failure of a computer's black screen, such as a damaged monitor, a damaged motherboard, a damaged graphics card, a bad contact of the graphics card, a damaged power supply, a damaged CPU, and a high temperature of components.

There are also artificially caused by the black screen of the computer, such as the genuine verification of Microsoft China.

On October 15, Microsoft emailed that Microsoft will launch the Windows XP Professional Edition and Office Genuine Verification Program for the Chinese market on the 20th, at that time, computers with pirated Windows XP Professional Edition installed will be forcibly every hour"Black screen"(desktop background changes to solid black) once, the menu bar of Office will be added"Not genuine"The mark that users of pirated software will be exposed to the computer separately"Black screen"with"Reminder tags"and other warnings.

Two. Displays faults.

1.The power supply is insufficient.

The external power supply is insufficient, causing some old displays or some displays with high power consumption to fail to start normally, which is one of the causes of the black screen failure caused by the failure of the display itself. Or the external power supply voltage is unstable, too high or too low may cause the display to not work.

2.The switching circuit is damaged.

The failure of the display switch circuit is the main cause of the black screen failure of the display. Simple ones such as power switch damage such as internal short circuit, common ones such as switch tube damage or damage to its peripheral circuit components (lamps) and so on.

3.The outgoing circuit is damaged.

The failure of the output circuit or picture tube and its power supply circuit is also the main cause of the black screen failure of the display. In particular, the damage of the high-voltage pack, which is more common in some miscellaneous displays that have been used for many years or are of poor quality, resulting in no display black screen failure.

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

When we came into the world, the first person we saw was the doctor. If you grow up and get sick, you can also tolerate it.

It was the doctor who prescribed medicine and injections for us, and gave us a healthy body. When our parents are sick, when our teachers and classmates are sick, and when everyone is sick, they can't do without doctor care and **. Being a doctor is so important, it can save lives and help people, so that people can live and study healthily.

My biggest wish is to become a doctor when I grow up and create a healthy world.

If I were a doctor, I would go to some remote places where there is a shortage of medical care and medicine, and give my love to those in need, even though the conditions there are very difficult, I will use my love and technology to improve the situation there and make people feel the warmth of the social system. I will also heal the injured animals, they are also a living life. If those who need help lose their health and even their lives because they have no money and no good medical conditions, I will do my best to help them, regardless of whether they have money or not, and treat the disease first.

I will treat every patient with enthusiasm and make their lives happier and happier.

Being a doctor is my lofty ideal, and I know that the realization of my ideal depends on hard work, and knowledge is the foundation of success. Although I am still young, as long as I improve a little bit every day, day by day, when I grow up, this dream of mine will always be realized.

Restart the hold and dial the red again, press the "Play Pause" button and the "Menu" button until the Apple logo appears and then release.

It is really not possible to press and hold the "Play Pause" key and the "Menu" key at the same time until the Apple logo appears, and immediately press and hold the "previous" key and the "Next" key at the same time until the iPod screen appears "Do Not Disconnect" or the FireWire icon. If this is not successful once, you can repeat the experiment.

The iphone 6 falls and turns black, either the screen is faulty, or the motherboard is faulty.

Charge it in, if there is a sound of du, ** can still call in, adjust the vibration and still move, it means that the motherboard should not be a big problem. It's mostly screens.

The original screen is 950 yuan, and the high imitation is 550.

Motherboard maintenance is to check what chip failure, different chips are different**.

The solution to the sudden black screen of the Apple 6S is as follows:

1. It may be due to the battery running out, resulting in a black screen that cannot be turned on, connect the phone to the power supply, if you see a charging sign on the screen at this time, and the power is very low, it means that the battery is dead;

2. After charging, it cannot be turned on normally, because all the power of the battery has been consumed, and the charging needs to be charged to 5% before it can be turned on normally;

3. The mobile phone battery is sufficient, but it can't be turned on normally, it may be that there is a problem with the mobile phone software system, you can try to press the "home and power" button of the mobile phone at the same time until the screen is lit up and displayed;

4. You can try to connect to the PC and use the restart function in PP Assistant, iTools and other tools;

5. The above operation methods do not work, it may be that there is a problem with the hardware of the mobile phone and needs to be repaired by professionals.

Apple's mobile operating system is iOS.

The system structure of iOS is divided into the following four levels:

The core OS layer, the core services layer, the media layer, the cocoa touch layer.

If the screen is normally black, try connecting the phone to the computer iTunes or press and hold the power button until it can turn on.

If you enter DFU mode, you will exit according to the exit method of DFU mode.

If you accidentally press the recovery mode and cause a black screen, press and hold the home button and the power button together, press and hold together for about 15 seconds and let go, and then press the power button to recover.

None of the above methods work, it is recommended to bring your mobile phone to a regular Apple customer service center for inspection and repair.

Workaround:

1. Try to force restart your iPhone first. Since the power button of the iPhone6S mobile phone has been moved from the original top to the side, you need to press the two buttons of [Home + Power] at the same time.

2. Until the white apple logo icon appears on the screen, please release the button at this time.

3. After the restart is completed, slide to enter the lock screen unlock interface and enter the lock screen password.

Apple 6S: The iPhone 6S comes in Gold, Silver, Space Gray, and Rose Gold. The screen is made of high-strength ION-X glass, the processor uses the Apple A9 processor, the CPU performance is 70% higher than the A8, the graphics performance is 90% higher, the rear camera is 12 million pixels, and the front camera is 5 million pixels.

iphone6 black screen does not turn on to several situations.

One is that the tail plug cable is broken, or the battery is broken, and the power cannot be supplied.

Just change the tail plug.

The second is a system problem, force restart or flash the machine.

The third and fourth motherboards are faulty.

It's time to repair the motherboard.

If the motherboard is also faulty, it will have to be replaced entirely, and the replacement data is gone.

Instead, test and see if those chips are burned, and just change the chips.

There are more than 200 chips for a chip, and more than 2,000 for a motherboard.

Therefore, it is unscientific for you to change the motherboard when you encounter a motherboard problem.

The following picture is a diagram of the motherboard chip taken when the chip is usually repaired for your reference.

It's not good, but you can change it to a kitchen knife.