Have you ever encountered your computer suddenly unable to turn on or use it? Are you angry at this time? Today I will show you some methods to evaluate why the computer cannot be turned on and how to fix it!
If your laptop cannot be turned on, it may be a power failure, hardware failure, or screen failure. In many cases, you can solve the problem yourself by ordering replacement parts or adjusting the configuration of your laptop. Today we will be two kinds of:
Check the power supply and battery
If your HP notebook does not turn on even if it is plugged in, please check the power source first. There may be many problems with the power supply.
For example, the problem may be simple, such as a faulty charging cable, which means you are not getting the correct voltage, or it may be that the power supply has failed.
1. To test whether there is a problem with the power supply, please completely remove the laptop battery.
2. Then, plug your laptop into a working socket.
3. First, confirm whether the socket is working properly by plugging another device into the socket-if it works, the problem is not with the socket.
4. If you can power your laptop without a battery installed, the problem is not the power supply, but your battery.
5. You need to buy a new one, but at the same time, you can only use AC power.
6. It is completely okay to use your laptop without a battery installed, it just means that you must always plug it into a power outlet to use it.
CMOS battery
Another possible test solution is to replace the CMOS battery that stores the BIOS settings in the motherboard. This is especially true if the old laptop you are running frequently shuts down or is used with the main battery removed. It is very cost-effective to replace the CMOS battery with a new one.
Pro tip: Make sure all cables are connected correctly. This may seem simple and obvious, but most of the problems with laptops that cannot be turned on are due to power problems. A loose or unplugged power cord means that your computer cannot get the power it needs to run.
Diagnose screen issues
If your power supply is working properly, you need to troubleshoot further.
1. First, disconnect all non-essential external display devices (such as projectors and monitors) to ensure that they will not interfere with the startup process of the laptop.
2. If the power button is on, you can hear the fan or noise, but no image is displayed, please turn off the light and see if there is a weak image display.
3. If the screen is dark after turning off the lights, the inverter on the screen is broken and needs to be replaced.
4. Or, your brightness button may be broken.
If your laptop starts but there is no image, the LCD panel may be damaged. If your laptop is an old model, it may make more sense to simply replace the entire laptop.
》 》 》 》 》 》 》 》 》 》Laptop battery
Thank you for reading! The next issue will continue to explain other reasons why the laptop cannot be turned on.
Friendly reminder: Friends who need batteries can choose the following online store to buy: www.batteryforpc.co.uk