Lenovo A766 enters the system black screen

Hello. We apologize for the inconvenience.

If your device cannot enter the system with a black screen, we recommend that you perform the following steps:

1.It is recommended that you remove the back cover and battery and try to restart, if you can enter normally, it is recommended that you back up the body data and try to restore the factory settings;

2.If the above operations cannot be improved, it may be caused by abnormal system files or data loss on the device motherboard, and you need to flash and check the device. Due to the risk of flashing the machine and may lead to non-insurance, it is not recommended that you deal with it yourself, please take the time to go to the repair station and the engineer will assist you in testing and processing.

Official after-sales site inquiry.

If you need other help, please feel free to contact us or visit Lenovo Lewen for consultation.

Hello, according to the problem you described, in order not to affect your normal use, it is recommended that you send your mobile phone to the service station for testing, you can query Lenovo mobile phone service outlets through the following link, I hope it will help you.

Please describe your problem specifically.

We apologize for the inconvenience. The phone suddenly does not turn on due to the following reasons:

1.The boot cable is not normal.

2.The battery-powered circuit is not working properly.

3.The power supply IC is not normal.

4.The system clock and reset are not normal.

5.The logic circuit is not normal.

6.The system software is abnormal.

Points 1 to 5 are hardware problems that require hardware repair; The sixth point is the system software problem, which can be solved by trying to reflash the system.

There are many reasons for this.

It is recommended to restore factory settings or flash the computer to see if the screen is still black.

If there is still a problem, you should consider whether it is a hardware problem! If it's hardware, it can generally only be repaired after sales.

Causes of smart black screen.

1. Mobile phone crash memory problem: Under normal circumstances, when the mobile phone stores too many things, many friends can feel that the mobile phone is running too slowly, and when their mobile phone is occupied by 80% of the memory that can be driven, it may crash.

2. The problem of the second contact of the mobile phone crash: This is the loosening of the contact of the mobile phone screen, which is not a big problem, but it can directly lead to the black screen of the mobile phone, which is difficult to find and can only be found after a lot of tests, which is generally caused by the mobile phone being bumped.

3. Mobile phone crash three battery problems: It is common for many mobile phones to have a black screen after using it for a long time, the main reason is that the effective use time of the mobile phone battery is 1 year, or it is three years but there is a problem in one year, and excessive use leads to the aging of the mobile phone's battery and insufficient voltage.

4. The problem of four conflicts in mobile phone crash: There are many applications for smartphones nowadays, but there are some software that are born with conflicts, which can also lead to a black screen, so the black screen after installing a lot of software is basically this reason.

5. The problem of mobile phone crash and five flashing: Many people are keen to brush the phone and use a better system, in fact, some system mobile phones are not very supportive, and there is also a complete flash, which leads to the inevitable black screen when using it in the future.

uweishicom will answer your full range of answers:

1. It's not a problem with the display, usually this problem is that the motherboard may be a little bigger, 2. Disassemble the chassis and buckle the computer of the motherboard off a silver, round, and about the size of a coin, and then install it after a minute.

3. If you have a discrete graphics card, please remove it as well, clean up the gold finger, reinstall it again, plug in the VGA cable of the monitor, plug it in tightly, and the BIOS settings will appear, let you press the del key to enter, after you press del to enter, select the first option, go in, find drive a or what, you use the up and down keys or the enter key to go in, select none, press f10, and then press y to save.

4. If it still doesn't work, then reinstall the system. You can try the U Guard (uweishicom) U disk installation system, which is easy to use, free and clean. Hope it helps. Hope to adopt.

Hello. It's a pity! The phone screen is black after booting, and restarting the phone is invalid. It is recommended to contact Lenovo mobile phone after-sales testing.

Officially authorized repair site inquiry.

You are welcome to contact us at any time or visit Lenovo Lewen (for consultation.

And the data cable can't be connected to the computer.。。 What should I do, can I help me? Thank you!!

Hello. Is it a black screen directly after a factory reset or is it due to your misoperation?

For details, please consult your local Lenovo after-sales service point for testing.

Dear users, hello!

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