What is the reason for the black screen of the laptop?
1、 There is a problem with the external device connection
If your laptop is set to boot from an external device such as a USB disk, any other connected external device may also cause the computer to fail to boot and have a black screen. Please check whether you have connected any other unnecessary external devices, such as SD card, USB disk, etc.
2、 Problems with laptop power adapter
Check the connection between the power cord and the power adapter. If the connection is loose or does not work, please reconnect. If the problem cannot be solved, the power adapter may be damaged and you need to replace it.
3、 There is a problem with the laptop hardware
Sometimes, poor connection or damage of RAM may also cause black screen. Remove the RAM from the laptop and clean the connector with an eraser. Then reinstall the RAM stick. If it does not work, replace the RAM. However, if the replacement of a new memory module still fails to work properly, it is recommended that the laptop be handed over to a professional for maintenance.
What is the reason for the black screen of the laptop?
4、 There is a problem with the CPU
The laptop starts up and the black screen may be caused by CPU damage or poor connection. In this case, it is recommended to send the computer to professional maintenance.
Tips: If you are not familiar with the installation of computer hardware, please give your laptop to a professional.
5、 MBR/DBR in hard disk is damaged or damaged
The laptop will access the startup code from MBR/DBR at startup. If the startup code is damaged or damaged, the laptop will not start and a black screen will appear, with the cursor in the upper left corner.
6、 There is a problem with the battery
Please remove the battery from the laptop first. Then disconnect any other unnecessary external devices. Restart the laptop in 60 seconds. (If the screen often goes black, try to solve the problem by removing the battery.)
