Why does my laptop turn on and then turn off immediately?
So, take, for example, the same laptop. Some time ago it worked stably. But then you turned it on and it immediately turned off. What happened to him? Let's try to figure it out. So, your laptop immediately turns off after turning on. The very first reason for all this may be a faulty battery. Try starting your laptop without a battery. If in this case it works, then you have only one thing left to do - buy a new battery.
It's also worth checking the power supply itself. It may be faulty. As a result, the battery is dead and there is not enough power to operate it. If this is the case, then in this case you will need to replace the power supply. By the way, this can also include a breakdown of the laptop’s power connector, a malfunction of the cord and plug of the external power supply. Because of this, the laptop’s battery will run out and, accordingly, it will either not turn on, or it will turn on, but literally turn off immediately.
If everything is fine with the power supply, then the problem may lie in the motherboard BIOS. There may be a "broken" firmware or simply unprofessional interference in BIOS settings. If you are not good at all this, but are sure that the problem is related to the settings in the BIOS, then it is best to take the laptop to a service center.
The laptop may turn on and then turn off immediately due to a short circuit in the power supply circuits motherboard. This includes the processor harness, the duty microcircuit, the battery charge controller, and more. The central processor or motherboard bridges may also be faulty.
As you can see, there are many reasons why this problem can arise. If the reasons are trivial (battery or power supply malfunction), then you can fix them yourself. But if the reasons are more significant (malfunction of the harness, central processor), then it is better to seek help from a specialist. All of these reasons apply to the situation when the laptop turns on and then turns off immediately or after a couple of seconds. If your laptop turns off after a couple of hours of use, then there will be completely different reasons.
