The performance of the black screen of the notebook is that after the notebook is turned on, the computer is still powered on and the internal radiator is also running. The screen is black but there is no English prompt. If there is an English prompt and the “-” symbol, it is not a real black screen. So what should I do if the laptop cannot be turned on and the screen is black? Let me share with you the reasons why the laptop cannot be turned on and the solutions.
Laptop won’t turn on Reason
There are many reasons why the notebook cannot be turned on. The performance is that the notebook can be turned on and run, but the screen is black. The reasons for this situation may be as follows.
1. Motherboard failure, memory failure
If there are two memory sticks, it is recommended to remove one memory stick and keep one memory stick to try to start up. If it doesn’t work, replace the other one and try to start up and test. If it is a problem with the motherboard, it is recommended to send it for repair. You can’t fix it yourself.
2. Graphic card, screen cable failure
Generally, if the graphics card or screen cable is faulty, you can usually enter the operating system. If you have set the startup music, if you can hear the sound of entering the system when you start the system, it means that the graphics card or screen cable is faulty or loose.
For the above hardware failures, it is estimated that the vast majority of users cannot handle them, so it is recommended to send them for repair.
3. Loose hardware
For example, if the memory or graphics card is loose, especially if the memory is the most likely, try to re-plug it.
4. Mainboard BIOS error
The BIOS of the motherboard is wrong, you need to clear the BIOS, complete the discharge operation, and reset it.
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Solutions to laptops that won’t turn on
The above reasons can only give you an approximate direction of the failure. Even if there is a hardware failure, we cannot repair it by ourselves, but we can try to see if the hardware is loose, and clear the BIOS on the motherboard.
1. Re-insert the memory
After shutting down the notebook, disassemble the D side of the bottom of the notebook, and re-plug the memory. If it doesn’t work, try to wipe the gold finger part of the memory with an eraser or paper, then install it back, and try to turn it on. Of course, if there are two Please replace the memory with a single one and try to start it alternately, which means that this memory is not working, and try to insert another memory separately.
2. Clear the CMOS battery and discharge it
Completely disassemble the D side at the bottom of the notebook. After seeing the motherboard, find the button battery. There is a plastic-wrapped round thing next to the motherboard, which is the button battery. Remove it at the connection interface of the button, which is generally a plug-in type.
After the interface is removed, wait for 5 minutes, preferably ten minutes (the time is not fixed, in fact, 10 seconds is fine under normal circumstances, of course, if it is invalid, you can try for a longer time), then plug the interface back and complete the notebook The mainboard CMOS battery is discharged, and the BIOS is reset.
There is also a black screen, which is not actually a black screen, the background is black after booting, but it shows English letters, or there is a “_” symbol, then this kind of possibility is as follows.
1. System failure
It can be solved by reinstalling the system.
2. The hard disk cannot be recognized
It may be that the hard disk is broken. Try to check whether the hard disk is recognized in the BIOS. If it is not recognized, it means that the hard disk is faulty and you can only replace the hard disk.
3. System boot problem
Use the PE system to repair the system boot.
4. The main hard disk is not set as the first boot item
If you have two hard disks, the main hard disk (the hard disk where the system is installed) has not been set as the first boot item.
Since there are many reasons why the laptop cannot be turned on, it still needs to be checked one by one to solve it. Even if we know the fault, we will not proceed. Maintenance operations, but we can solve the problem through several simple attempts, especially the chances of loose memory or motherboard BIOS errors are still relatively high.
How to restart the laptop when it crashes?
If the laptop crashes, it is no longer possible to restart it on the desktop. The laptop is not like a desktop computer. There is actually only one button to shut down and restart. Many novices don’t know how to force shutdown or restart. So how to restart the laptop when it crashes? Let me share with you how to force shutdown or restart the laptop when it crashes.
1. Sometimes it is not a real crash, we can press the key combination [CTRL] + [ALT] + [DEL] on the keyboard to choose to restart, try. If it really crashes, please try the following methods.
2. The real crash is that the screen freezes, and your keyboard and mouse are impossible to operate. We can press and hold the power button for a few seconds to force shutdown and then restart it.
3. Another way is, if the notebook has a removable battery, we unplug the power cord of the power adapter, remove the battery, reinstall the battery, and turn it on.
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How does a laptop computer discharge static electricity? The easiest way to discharge static electricity from a laptop
If the laptop cannot be turned on or the Bluetooth function disappears, we can try to discharge static electricity from the laptop to solve the problem. But for the computer novice, I don’t know how to release static electricity from a laptop. In fact, the method is very simple and not as complicated as imagined. Let’s share the easiest way to release static electricity from a laptop.
The easiest way to discharge static electricity from a laptop
1. Before the notebook discharges static electricity, we need to unplug the notebook’s power charger, mobile hard disk, U disk, mouse, and other external devices, and shut down the notebook computer (if it is a removable notebook battery, it can also be disassembled );
2. We press and hold the power button of the notebook for about 20 seconds, and then release the power button. If it doesn’t work, try a few more times.
The above is the easiest way to release static electricity from laptops. It is suitable for Lenovo, Asus, HP, Dell, and many other brands. I hope this article can help everyone.