The laptop has a black screen when it is turned on, and nothing is displayed

If the laptop is connected to an external monitor, there is no problem, at least it means that your motherboard is fine.

According to your description, I don't think it's at least hardware-wise. Laptops and external monitors have the function of switching between each other: LCD single bright, CRT single bright, LCD &CRT full bright. You can try fn+f8 f6 to give it a try.

It could be that there is a compatibility issue with the memory and the motherboard, or that the CPU is corrupted or not installed properly.

The possibility of system problems is not very likely, basically it is a hardware problem, if you are in insurance, you will directly recruit a service provider.

It is estimated that there is a high probability of hardware problems.

Laptop boot black screen does not show anything Solution:

1. Plug in the power adapter, press the switch to turn on, pay attention to see if the power indicator is on, if the power indicator is on, it means that the motherboard has been powered on, and the problem of low battery power is ruled out.

2. Check the sleep switch signal again, the normal state sleep signal should be high level (only professionals can detect), some machines have a sleep control switch, this switch should play up.

3. When the whole machine is powered off, open the back cover, unplug the memory and wipe it, and then install it back to try it.

4. Take off the radiator and reinstall the CPU, some models have an independent graphics cardboard, you can take off the graphics card board and wipe the gold finger and then put it back to try.

5. It may be due to the damage of a peripheral, which may cause the boot screen to be black, you can unplug each peripheral one by one and boot it for testing.

Hardware causes a black screen situation:

1. Whether the laptop battery is out of power.

2. The cable contact of the display is poor.

3. Poor contact of the graphics card.

4. Poor memory contact.

5. There is a problem with the power supply.

6. The display screen is broken.

Restart the computer and press F8 to enter safe mode, delete the graphics card driver in the control panel of safe mode: then restart the system normally, reinstall the graphics card driver or change to another version of the graphics card driver.

Causes:1The monitor is powered off.

2.The display data cable is not in good contact.

3.There is no power supply to the motherboard.

4.The graphics card is in poor contact or damaged.

5.Poor CPU contact.

6.Poor contact of memory modules.

7.The machine is infected with the CIH virus.

8.The BIOS is refreshed destructively.

Ways and steps to solve the problem:

Pick up the keyboard and find the three keys Ctrl, Alt, and Delete and press them together (Ctrl+Alt+Delete) (as shown below).

2.At this time, a window will appear, there are many options in the window, then we just need to select "Launch Task Manager (T)" and click to enter (as shown below).

3.At this time, the Task Manager window will appear, click on the "File" item in the upper left corner, and then click on the "New Task (Run)" above. n)" (as shown below).

4.At this time, the Create Taskbar will appear, enter "explorer" in the open box, and click OK (as shown below).

5.Through the above steps, your desktop has been opened unconsciously, how simple is it (as shown below).

The solution is as follows:1. If the desktop icon is not displayed after booting, you can right-click on the desktop to view --- display the desktop icon. So that the icons on your desktop will appear.

The desktop function is normal.

2. If your problem is not to display the icon or the taskbar, you can press and hold the three keys of esc, shift, and ctrl on the keyboard, and the three keys should be pressed at the same time. At this point, if the system is fine, the task manager should appear.

3. Click on the Apps option in the top left corner of Task Manager.

4. Click the New Task button in the lower right corner of the program in the application options.

5. Enter "explorer" in the input box to create a new task, and then click OK.

6. If there is no other reason, the desktop and taskbar should appear at this time.

Hello, I'm glad to be able to have your problem with the problem notebook boot screen not displaying, maybe there is a problem with the software or hardware. One, the black screen caused by the software. Sometimes after installing some software or hardware drivers, you find that after restarting, the computer can't enter the system and the screen has been black, which is the black screen of the laptop caused by the software.

If the black screen is caused by software, take the Windows system as an example, you can restart the machine, press the F8 key several times when booting up, and bring up the system's boot options menu. Once the System Boot Options menu comes out, select Enter Safe Mode. If you can enter the safe mode normally, you can delete the software or driver installed before the black screen in the safe mode.

Then restart the machine and see if the laptop can fix the black screen issue. Second, the hardware causes the laptop to have a black screen. Hardware-induced black screen for the following reasons:

1) The cause of static electricity, sometimes static electricity will cause the circuit of the notebook motherboard to be abnormal, resulting in no reaction on the screen after the power is turned on. You can try to turn off the battery and power of the laptop, and then press the power start of the laptop several times to let the machine release the static electricity. Then connect the power supply, turn it on, and see if it can solve the fault.

2) The memory is loose or the memory has a hardware failure. There are several major components of a laptop computer, including the CPU, motherboard, memory, and graphics card. These parts are indispensable, as long as one of them has a problem, it will cause the laptop to not function properly, the most common is that the boot does not respond.

In general, the probability of CPU and motherboard failure is relatively small, and it is more common for the laptop to fail to boot due to loose memory. At this time, first remove the battery and power supply of the notebook, if it is not difficult to remove the computer, you can open the back cover of the notebook by yourself and reinsert the memory. After plugging in the memory, power it on again, start the machine, and see if you can solve the fault.

3) The LCD part of the notebook is faulty. There are some notebooks that are a little older, and this may be the case. Display components generally include displays, data cables, and some other small parts.

If you have a desktop monitor, you can try to connect it to the VGA display connector on your laptop, and then switch the display to the VGA external display on your laptop. If you can switch to an external monitor, it means that there is a big problem with the display part. 4) The graphics card hardware is faulty, the graphics card is responsible for the source of all the display output of the computer, so it has a problem, and there is no display on the screen.

If the graphics card is broken, the average user can't solve it, and the only way to solve it is to find the computer's after-sales service. If the notebook is within the warranty period, it can be taken for free inspection and repair.

Generally speaking, the laptop does not display the desktop when it is turned on, and there are two situations if it is a black screen, one is that the memory has been damaged, so it will not start, and it will also cause the phenomenon of a black screen, and the temperature of the CPU is too high will also cause it not to start and the computer automatic protection device will start, so what about this thing, you only need to blow the dust inside the radiator clean, generally speaking, there is no problem, as long as the motherboard is not burned off, generally speaking, there is no problem. The third is that the power capacitor is burned out, which can also cause this phenomenon if it is short-circuited.

What should I do if my laptop doesn't turn on with a black screen? This is a problem that many notebook users have encountered, how to solve it? Don't smash your computer in a hurry, you can take a look at the following laptop black screen solution to help you get it easily.

What to do if the laptop screen is black may be that the memory slot socket is not in good contact, and it can be solved by disassembling the back cover after power-off and wiping the metal contact part with an eraser; If you just can't enter the black screen, it means that it is a system failure, you can try [Last Correct Configuration] in turn, and enter [Safe Mode] to delete the driver that has just been updated; You can also use the boot disk to repair or reinstall the system. 1. There is no display after booting and the fan and keyboard light are normal, it should be a poor memory contact, unplug the power supply of the notebook first, if it is a removable battery design, you can remove the battery first. Open the back cover of the notebook and remove the card slot of the memory; Align the part of the gold finger in the memory, that is, where there is a copper sheet, rub it back and forth with an eraser a few times, wait for the copper sheet to shine, and then insert it back after cleaning the ash, cover the back cover, and turn on the machine generally; 2. If you just can't enter the black screen, it means that it is a system failure, you can press [F8] many times when you boot up, try to enter the advanced options, select [Last Correct Configuration], if you still can't enter the system, enter the safe mode, uninstall the driver you just updated and then try to enter the system; 3. If you can't get into the system after trying all the above methods, you can use the boot disk to repair it, or reinstall the system after backing up the data in safe mode.

It's hard to determine, you need to detect, common reasons: the memory is loose or the memory itself is problematic, reinsert the memory or try to change the root memory; The power supply chip of the motherboard is soldered or aged, the screen cable is loose or the motherboard short-circuits the power supply circuit of the screen; Or a gray screen failure caused by a problem with the graphics card. Notebook hardware questions answered.

The black screen of the notebook boot and nothing is displayed may be caused by a loose memory module, and the steps to solve it are as follows:

1. Turn off the computer.

Force the computer to shut down.

2. Twist the screws out.

Turn the laptop over and screw it out.

3. Push out the back cover of the computer.

Push out the back cover of your computer.

4. Plug in the memory module tightly.

Once you've found the memory module, plug it in tightly.

5. Close the back cover to the computer.

Close the back cover of the computer and screw it on.

This article is based on the Lenovo Tianyi 510Pro-14IMB brand and Windows 10 system.