What should I do if my Lenovo laptop can t turn on the screen with a black screen?

Generally speaking, the reason for the black screen failure of the computer is mostly due to hardware failure. And Lenovo laptops are a brand that is mostly used in the notebook market in China, which is more representative. So, what should I do if my Lenovo laptop computer turns on with a black screen?

How can this fault be solved? Today's Lenovo laptops are mostly used in the win8 system, and the following is the solution to the black screen of the Lenovo laptop of the win8 system.

What to do if Lenovo laptop has a black screen when it turns on? Introduction one.

1. Hardware: Immediately choose to enter the BIOS to see if the screen will be black, if it is also black, the hardware is faulty.

2. System file configuration: 1. First, when the black screen is started and there is only the mouse, call up the task manager through CTRL+SFHift+ESC; 2. Then click "Details" on the left side of the task manager, display the full panel, select the file of task management - run a new task; 3. Then select "Browse" in the lower right corner of the dialog box that appears, and the file browsing window will pop up; 4. At this time, you can see "This Computer" on the left side in the file browsing window, right-click on it, and select "Manage"; 5. The "Computer Management" window pops up, select the local user and group user on the left, and the local user will be listed on the right; 6. Create a new administrator account, then log out, log in with the new username, and everything will be normal.

3. Graphics card driver: The black screen may be caused by the incompatibility of the graphics card driver, and you need to uninstall the original graphics card driver and install the latest version of the compatible driver to solve the problem. Refer to the above method to open "Manage", select Device Manager, click on the graphics adapter, uninstall the device inside and check Uninstall the driver, and then reboot into the system to update the graphics card driver.

4. System update: The incompatibility after the automatic update will cause a black screen, and you need to uninstall the latest update to solve the problem. Refer to the above method to open the "Task Manager", select the file to create a new task to run, enter ", open the control panel, open Programs and Functions, click on the left to view the installed updates, and right-click to uninstall the latest updates.

5. System failure: If the above methods are not solved, you need to back up the data and reinstall the system or restore it with one click.

In the above, the solution to the problem of Lenovo laptop boot black screen is introduced from five aspects: hardware, system file configuration, graphics card driver, system update, and system failure, and you can refer to it. However, it is still recommended that the specific analysis of the problem of the large furniture can be taken according to the specific situation when the failure of the black screen of the Lenovo laptop boot occurs, if not, you can also consult a professional, or send it for repair.

See what kind of cause is caused, if it is a hardware reason, you need to upgrade to the aftermath to detect. It needs to be repaired. If the system crashes, you just need to redo the system, you can use a USB drive or go to a repair shop to make the system, it's okay.

Lenovo Tianyi F41 What should I do if the laptop can't be turned on The screen is black Just turn on the QQ Feixin, suddenly the blue screen, and then the screen is black, and the computer screen has no response after restarting it a few times?What is the problem of the master? There are many reasons why the machine can't be turned on and the screen doesn't respond, one, the system is damaged, the hard disk is damaged, the notebook can't recognize the hard disk, etc., two, the memory is broken or the memory slot is soldered, and then there is a problem with the motherboard power supply chip, and third, the BGA (north and south bridge, graphics card, network card, etc.) packaging chip virtual soldering damage will cause the boot screen not to light up.

It is recommended that you send it for repair and testing.

I'll help you in Beijing.

If you are not in Beijing, it is recommended that you find a reputable and skilled maintenance company to help you overhaul.

It is recommended that you take your computer to Lenovo after-sales service or specialty stores for testing.

If you're not a professional, try not to mess around so as not to complicate things.

The first thing to confirm is whether the black screen is caused by a hardware failure or a software failure, and if there is no important data, you can suggest a recovery system to try to fix it. If the recovery system failure persists, the hardware damage is more serious!

First try to restart the computer, immediately press F8 (continue to press simply), the option of "Safe Mode" appears, select Safe Mode to enter, and see if it is successful. Or select "Last Normal Configuration (Advanced)", which usually solves the problem.

In this case, it is recommended to go to the after-sales service of Lenovo laptops and ask professionals to test and repair them.

Lenovo laptop can't turn on, and if there is power in normal conditions, it may be that the system is poisoned, and you can buy a system.

What should I do if my laptop can't be turned on?What's wrong?If you can't turn it on, it may be broken, and if it is broken, it may be repaired, what should this person do?

Contact Lenovo's after-sales service.

black screen caused by software;

After installing some software or hardware drivers, after the computer restarts, the computer can't enter the system, and the screen has been black, which is a black screen of the notebook caused by software;

Solution, it is recommended to use 360 Guard, Kingsoft Guardian and other software, clean up garbage, check and kill malware, take Windows as an example, we can restart the machine, press the F8 key a few more 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 we can enter the safe mode normally, we can delete the software or drivers installed before the black screen in the safe mode.

Then restart the machine and see if the laptop can fix the black screen issue.

Hardware-induced laptop black screen;

On laptops, there is a sensor switch, when we close the screen, the display will automatically turn off, thus saving power consumption. Some notebooks are mechanically touched, such as when the screen is closed, it will touch it, like a beginning to disconnect the power of the display. If the switch is aging, it will cause the laptop to go black;

The black screen of the computer may be damaged or loose of the main parts of the computer, the common ones are: poor contact of the display data cable, no power supply to the motherboard, poor contact of the graphics card or, poor contact and overheating of the CPU, poor contact of the memory module, poor power performance, CIH virus infection of the machine, destructive refresh of the BIOS, these may cause the black screen of the computer; Exceptions: In many cases, due to the compatibility between the system and the driver, the computer screen will also be black, it is recommended that you change to another version of the driver to install, or change to another version of the system to install.

Check if there is a taskbar, if there is, you can right-click the desktop to view and display the desktop.

If you don't have a taskbar, do the following.

1. You can directly use the "Ctrl + Shift + Esc" shortcut key to open the Task Manager program directly;

2. After the task manager pops up, find "Processes" in the "Processes" tab;

3. Check the "End Process" button below to close the explorer;

4. Then click "File" in the upper left corner to open the menu, and select "New Task (Run)";

5. After that, the "New New Task" window will pop up, enter the name of the process you just closed", and click OK.

1. If the monitor is not used for a long time, the monitor will automatically turn into sleep energy-saving mode and the screen will be black.

Solution: Take win7 as an example.

1) Right-click on the blank space of the desktop and select "Personalization" in the menu to open the personalization settings dialog box.

2) Click on the red box in the above picture and select "Screensaver" to enter the screensaver settings dialog box.

3) Set the screen saver to "None". And click "Change Power Settings" to enter the power settings dialog box.

4) Click "Change Plan" to enter the change settings dialog box.

5) In the blue box selection, click the drop-down triangle, select "Never", and then "Save Changes" to exit.

After setting, the monitor will no longer automatically go black.

Second, the display failure causes a black screen.

On the internal power board of the display, the capacitance of the power supply output part is aging, leaking, bulging, and failing. When the display is first turned on, because the capacitor is not completely necrotic, in a short time, the power supply is normal, so it can be displayed normally. After working for a period of time, the power supply is seriously insufficient, causing the backlight of the LCD monitor to go out, causing the display to go black.

Solution: Send it to the professional display repair point for repair, and the cost is about 30---50 yuan.

Solution: Replug, install and fix the signal cable of the monitor. If the fault persists, the signal cable can be replaced.

Fourth, the performance of the graphics card is faulty and unstable, resulting in a black screen of the display.

Solution: 1. Test after updating the graphics card driver, if the fault persists, directly replace the graphics card for testing.

Note: If you are using an integrated graphics card, you can install a discrete graphics card for testing. Or directly replace the motherboard with integrated graphics for testing.

Fifth, the motherboard has failed to function and runs unstable, resulting in a black screen on the display. Solution: Directly replace the motherboard for testing.

You can try the external display of the traveler, if the external display is not displayed, or Ji Zhen needs to take it to the after-sales service for testing and maintenance.

1. Lenovo computer adaptation power supply is one of the main reasons why the computer cannot be turned on with a black screen, because there is no power input, the host and the LCD screen cannot work, so the black screen, the solution: replace the power cable.

2. The memory and graphics card are oxidized, resulting in poor contact with the memory slot or graphics card slot, resulting in a black screen, and the probability of it appearing a black screen accounts for 80%, the treatment method: is to turn off the power, open the compartment, dial out the memory, and the graphics card, align the memory and the graphics card gold finger (that is, where there is a copper sheet) with an eraser back and forth at least 6 times, blow the ash, and then insert it back.

3. The video memory of the computer graphics card is soldered, the performance of the main chip is reduced, the graphics card BIOS is disordered, and the control power supply IC is problematic, which will cause the graphics card to fail to work normally, that is, the graphics card is broken, and the graphics card is broken, and the screen will naturally be black.

4. There is a problem with the boot circuit of the motherboard, resulting in a failure to turn on, a black screen, a problem with the main power supply of the CPU, and a problem with the CPU mainstay, and a problem with the IO, and a black screen, etc., In short, the components on the motherboard are faulty, and many will not be able to turn on, and the screen will be black. Solution: Send the motherboard for repair.

5. The screen cable of Lenovo computer is broken or poorly contacted, resulting in no image signal being transmitted to the screen display, that is, a black screen.