Why can t the newly bought Huawei Mate40Pro turn on?

The Huawei phone suddenly has a black screen and does not turn on. There are two scenarios:

First, there is a sound and a response, most of which are burned by the screen, or the chip that controls the display.

Clause. Second, there is no reaction, and some people still have fever.

Most of the motherboard is charged and burned, the current is too large, and the motherboard has a power manager, similar to the electric switch at home, if the current is too large.

In order to avoid further burning out other parts of the motherboard, it will go into trip mode, which means that the power manager is sacrificed first.

If it is further charged, it will burn other chips as well. So never charge.

There is also a part caused by water ingression, which may have burned other chips.

Under normal circumstances, you can change the power chip, and the conventional chip is only 34 hundred yuan. Far cheaper than changing a motherboard for 34 thousand.

Don't listen to those masters who don't understand chip repair, and you want to replace the entire motherboard or something.

It's like if the toilet in your house is broken, the knowledgeable ones will let you change the toilet, and the ignorant ones will let you change the house.

The above figure is the chip structure diagram for reference.

I have been doing mobile phone repair, and I know more about these.

If you don't understand, you can ask [惘明是徵].

Under normal circumstances, there will be surplus power saved in the newly bought mobile phone! For users to try out their phones!

In this case, the problem is only charged first! Turn it on again!!

The Huawei Mate40Pro took a long time to boot up for the first time.

First of all, connect the charger (to avoid not being able to turn on the machine without power).

After pressing the power button, wait a little longer, sometimes even more than ten minutes.

It won't take that long to turn on in the future.

Your situation should be impatient to wait.

Maybe the phone battery is dead, you can charge it for 30 minutes before pressing the power button to turn it on, if not, return the phone for a refund.

If you say that you can't turn on the newly bought mobile phone, you can connect the power supply and then try to turn it on, or you can't turn it on, you can directly contact the manufacturer to return the phone!

The Huawei Mate40Pro took a long time to boot up for the first time.

First of all, connect the charger (to avoid not being able to turn on the machine without power).

After pressing the power button, wait a little longer, sometimes even more than ten minutes.

It won't take that long to turn on in the future.

Your situation should be impatient to wait.

Tool: Huawei Mate40Pro

Operating system: EMUI

After turning on your phone, stop other operations on your phone as shown in the figure below

Then find the power button on the side of the phone, and press and hold the power button for more than 3s, as shown in the figure below

Then click to select Shutdown as shown in the image below:

Finally, confirm again and click Shut Down, as shown in the figure below

Huawei Mate40Pro shutdown method is the same as most Android phones, you only need to press and hold the power button and select power off on the screen that appears.

As one of Huawei's three core businesses, Huawei's consumer business began at the end of 2003 and has set up 16 R&D centers in China, Russia, Germany, Sweden, India, and the United States. In 2015, Huawei was selected as one of the top 100 most valuable brands in the world by Brand Z, ranking 16th among brands in the technology field. On July 31, 2018, preliminary data released by the International Data Corporation, a market analysis agency, showed that in the second quarter of 2018, Huawei's shipments surpassed Apple's mobile phones, ranking second in the world.

On July 17, 2019, on the official website of the China Quality Certification Center (3C certification), 8 5G mobile phones obtained 3C certification, including four mobile phones including Huawei Mate 20 X 5G and Mate X 5G. As of October 22, Huawei has shipped more than 200 million mobile phones in 2019. On March 31, 2020, Huawei released its annual report showing that in 2019, Huawei's smartphone shipments (including Honor) reached 100 million units, a year-on-year increase, making it the world's second largest mobile phone manufacturer.

Huawei Mate40Pro is a mobile phone belonging to the Android system,The mobile phone of the Android system is basically turned on or off by pressing the power button for about two or three seconds,Short press the power button to turn on or off the screen。

To turn off your phone, press and hold the power button for a few seconds until the phone pops up the power off menu, then tap Power Off, then tap Power Off.

If your phone won't charge. You can follow the following methods to determine the cause of the problem:

1. Please confirm whether there is a charging icon.

If your phone is powered on and there is no charging icon after connecting the charger, please check the connection of the charger and cable, please make sure that the charging port is clean and the port connection is stable before charging the phone, if it still cannot be charged, it is recommended that you change the charger data cable and try.

2. If your phone has not been used for a long time.

If your phone has not been used for a long time, or you have not charged your phone in time after the low battery is turned off, it is recommended that you charge it for more than 30 minutes to check if the phone responds.

3. Please confirm the temperature of your phone.

If the temperature of the mobile phone is too high or too low, it may not charge properly, please make sure to charge the mobile phone in the environment of 0 35.

4. It is recommended to use the officially recommended charger for charging.

It is recommended that you use the charger and charging cable officially recommended by Huawei for charging. Non-Huawei chargers and cables may not be compatible with the phone, resulting in the phone not charging or charging slowly.

5. Go to the Huawei Customer Service Center for testing.

If your phone still does not charge properly, we recommend that you back up your data (QQ, WeChat and other third-party apps need to be backed up separately) and bring your phone, charger, data cable, and proof of purchase to a nearby Huawei Customer Service Center for testing.

Repair spare parts** inquiry.

Customer Service Center.

Make an appointment for service.

About the aboveWhat should I do if the Huawei Mate40Pro can't be charged?

To the above questions, this is the first placeCheck first,Then whether the original charger of the Huawei Mate40Pro mobile phone 66W is normal (if necessary,It's best to replace it.。

Check the original chargingData cableThere are problems such as poor contact(If necessary, in order to find out the cause, it is also necessary to change the test.)

Check the charging cable plugwithMobile phone charging tail plug, check the inside between the two, whether there is poor contact, etc.

Check if the battery inside your phone is normal(For this inspection, it is recommended that it is best to ask a professional master to test the mobile phone battery).

Through the aboveThoroughlyCheck, if all are normal, then this situation is very likelyCharge control circuitry on the motherboard,There is an abnormality or damage failure. This is for your reference only!

The first thing to consider is the charger problem, try to change a 65W charger, if it doesn't work, it's basically a problem with the tail plug, just change the tail plug. The price of the tail plug is between 30 and 50.

Check the charging head and data cable first.

If everything is normal, then the interface may be loose.

After excluding the above, it can only be sent to the maintenance point.

Huawei mobile phone boot black screen, then try to be able to connect**, can be connected may be broken screen can not see, if it can't be connected, it may be a mobile phone system problem, use the computer to flash the machine to try, if it still doesn't work, it may be a problem with the mobile phone and need to be taken to a professional mobile phone repair shop for maintenance.

Press and hold the power button for more than 10 seconds to see if you can force it to turn on. If you are able to turn on your computer, please back up your important data and perform a factory reset or upgrade to the latest software version. If you can't force it to turn on, please check whether the phone has power, there will be a charging indication when plugged in when the power is empty, it may not turn on immediately when it is just charged, please continue to charge for a period of time, and then try to turn it on.

1. Tap [Accessibility] in the phone settings menu. Headlines Lai Yan.

2. Click [Quick Start and Gestures]. Lai Yan headlines.

3. Click [Bright Screen]. Headlines Lai Yan.

4. Turn on your favorite way to turn on the screen. Lai Yan headlines.

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Take Huawei Mate40Pro as an example, the specific operation is as follows:

1. After turning on the phone, stop other operations on the phone.

2. Then find the power button on the side of the phone, and press and hold the power button for more than 3s.

3. Until some buttons appear on the phone, and then we click to choose to turn off.

4. Finally, Yinshenfu confirms again and clicks to turn off.