How to solve the black screen of laptop boot 20

There are many reasons for a black screen, such as memory, hard disk, graphics card, motherboard, monitor, power supply, etc. First you have to start with the software, and then the hardware. Clause.

1. Clean the dust, redial and reinsert to ensure that it has nothing to do with loose hardware.

Clause. Second, take a look at whether the motherboard has explosive capacitors, and the CPU will crash if it overheats. The temperature can be viewed from the BIOS.

Clause. Second, use the software to scan the memory for damage, and the HDD to scan the hard disk for bad sectors.

Clause. 3. If possible, reopen the area and reinstall the system.

Clause. Fourth, make sure that it has nothing to do with the software, if there are conditions, borrow someone else's hardware to replace it and try it, and eliminate it one by one.

Clause. Fifth, if you can't do it yourself, you can only ask professionals to repair it.

This is my experience, I hope it will help you!

1. If you look at whether the hard disk light is flashing during the boot process, you can see whether the computer is booting and loading the operating system normally.

2. If you can be sure that the system is loading normally, it means that the machine itself is operating normally. Then it may be a problem with the display, such as poor cable contact.

3. If you don't observe the continuous flashing of the hard disk light, it may also be a power failure, or other hardware problems, resulting in most cases the machine does not start normally at all. I think it's more likely that there will be a power supply problem, because occasionally you can boot up and run normally, but not if there is a problem with other hardware.

Today's notebook power supply is generally a wide range of voltage, which can be used in the domestic 220V and Japanese 110V environments, but there are some that are not, you have to see if you can use it now at 110V, if you don't make it clear that you can use it at 110V, don't use it again. It is difficult to say whether it is the damage to the power adapter or the power supply part of the fuselage.

It's best to send it to the maintenance department for inspection!

Hope mine is helpful to you!

If the cursor is flashing, it means that the host hardware is basically normal, and you can try to reinstall the system to solve the problem.

The best way to send it for repair

1. If the boot screen is black, and there is a sound that can enter the backup system, but the external screen is still abnormal, it means that the graphics card or motherboard is faulty. 2. When processing, open the shell, tighten the interface between the screen and the motherboard, and then clean up the dust on it after the envy is destroyed, and install the computer parts one by one. 3. If it still can't be solved, you need to restart the computer, then keep pressing F8 to enter the safe mode, and then carry out antivirus, repair the file, and start it on after restarting.

A black screen on a computer is actually a common fault.

From my personal experience, half of the assembly machines and laptops appear more, some are faulty, some are setting problems, and the solution to the failure is generally:

First, check whether the interface and power cord of the chassis power supply are in good condition. If the interface and power cord are damaged or broken, they should be replaced in time

1. The lamp may also fail, and the lamp should be replaced within 500 oceans; ps：xian86913

2. There is also a booster plate, or a high-voltage plate failure, which is an element that supplies pressure to the lamp, generally at the bottom of the screen. The maintenance cost is about 200-300; ps：xian86913

3. If the motherboard does not supply power. That is, there is no power supply to the booster plate. The maintenance is about 200-300 yuan; ps：xian86913

4. Then there is the overheating of the machine, which causes problems with the graphics card; ps：xian86913

5. If the memory is loose, try to see if the memory of the machine is loose, or you can also see if the hard disk cable is loose, etc.

If none of the above can be solved. ps：xian86913

Black screen suggestion: Take it to the manufacturer's repair station for free during the warranty period, or find a computer repair company with a good reputation.

There is also a black screen is a problem with computer settings, that is, it can be solved in this way if you don't use the automatic black screen for a long time:

Tap [Start] in the lower left corner of the screen - select [Control Panel] - find [Power Options] - select [Balance] - click [Change Plan Settings] - set the computer to sleep "Never".

However, if you set it up like this, the hard disk will work all the time, which will have a certain impact on the service life of the hard disk.

Hope mine can help you out.

Laptops are highly integrated and generally have no connectivity issues.

Turn on the computer and run, but there is no display, first plug in all the ports of the power adapter tightly, charge it for a period of time and then turn it on.

It doesn't work yet, remove the memory, clean up the gold finger, and put it back to try.

If there is still no response, send it to the repair shop, this has to be disassembled for testing, and you can't do it yourself.