The laptop boot button flashes and can t turn on?

1. Replace the power adapter.

The power adapter (charger) is broken, resulting in the computer having no power supply, but the computer battery supplies power to the motherboard for a short time, with a multimeter.

Check the voltage at the output plug of the power adapter, if the voltage is too different from the voltage marked on the adapter or there is no voltage, try to replace the power adapter, if the output voltage of the adapter is normal, check it according to the following.

2. Send for repair: the power interface of the computer is not in good contact or damaged, when the adapter is normal, there should be a power indication and charging indication when plugged into the computer, if the computer is plugged into the external power supply and there is no display, it is a problem with the power interface or the power control of the motherboard, and it can only be repaired.

3. Replace the motherboard: the motherboard has a short circuit and causes the power supply to protect the shutdown, this situation is the most serious, and the probability of replacing the motherboard CPU is generally larger, and the reason for this situation is that the computer fan is broken and causes heating.

And there is no shutdown.

Laptop.

Precautions for use.

The most aging part of a computer is the optical drive, and the optical drive of a laptop is no exception. The optical drive of the laptop is mostly a special product, and it is more troublesome to replace it after damage, so it is necessary to use it with care. It is not a good habit to use a laptop to watch VCD or listen to **, and the money to replace the optical drive of your laptop is enough for you to buy a VCD player or CD Walkman.

The biggest fear of a laptop is a drop, so be sure to put the bag in a safe and secure place when you place it. Note that when you are not using the computer, you must close the zipper on the bag when you put it in your bag to prevent it from falling out accidentally. When the system is running, the external vibration will cause the hard disk to be injured or even damaged, and the vibration will also cause damage to the shell and screen.

It's best to shut down the computer and restart it, if there is no problem, it can be solved directly, if you can't turn it off, you can turn it on after the power is off!

Are you plugged in with a power cord or using a battery?

When the laptop can't be turned on, there are generally two situations, the first is that the battery is damaged, and the second is that the motherboard has a problem.

1. When the boot indicator flashes, it is very likely that the power supply part of the computer has been damaged, and now you can remove the battery, if you remove the battery, you can still use it normally, that is the problem of battery damage.

2. However, if the group takes off the battery, it is missing orange and connects the power adapter.

If the indicator light does not flash, the power adapter is damaged and you need to go to the after-sales service to find a professional for repair.

3. When the power supply part is abnormal, the computer motherboard will automatically protect it, of course, it can't be turned on.

4. Under normal circumstances, it is not recommended to disassemble the computer by yourself, and there are many after-sales maintenance points for notebooks, so it is recommended to find the address through customer service and send it to the maintenance site for maintenance.

5. Different computer brands include different indicators, usually including battery, wireless signal, caps lock, power connection, etc.

1. Check whether all the plugs of the power supply and the wires on the adapter of the notebook are firmly inserted into their respective sockets, if not, it means that the contact with the power supply is poor, just press the plug down again.

2. If the indicator light is not yet on, on the premise of ruling out the power adapter, it must be that there is a problem with the power chip of the motherboard or a short-circuit breakpoint, and the motherboard is not powered on.

3. If the indicator light responds but the screen is black, it may be a problem with the graphics card or memory.

4. There is no display when the boot is normal, check whether the power cable, switch, and data cable of the display are correct, and it is also possible that the display is damaged.

It may be that there is too much dust and it can't be turned on normally, open the back cover of the notebook, blow it down with a fan, clean up the dust inside the notebook, and then unplug the memory module and use the eraser to wipe the gold finger and then install it to boot normally.

Check the power cord connectors.

1. Power on, turn on, and hear the whirring fan sound is not displayed, then the hardware works normally, plug and unplug the memory (eraser rub the gold finger once).

2. Power on, turn on, I didn't hear anything, unpack, the motherboard has an indicator light, see if it's on, it's the power supply and power supply, it should be the key contact is poor, it is recommended to clean up the dust.

3. Power on, turn on, there is no response, the computer can not start, the motherboard with lights is not bright or the brightness is not high, there is a problem with the power supply.

For the laptop has not been able to enter the system after booting, and the boot button has been flashing, in fact, correspondingly speaking, this time is mainly the corresponding power input is from AC 220 volts to DC 20 volts to see, if it is more normal, at this time it is necessary to determine whether the conductive rubber under the button can be used normally. In addition, it is possible that the battery of the computer itself has this error, so it is relatively necessary to measure the quality of the battery.

Step 1: First of all, confirm whether it is really broken, or if the power button keeps flashing because of static electricity.

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Step 2: Check if the temperature of the computer is normal and check if the computer has enough power.

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Step 3: Unplug all the external devices connected to the computer, plug in the power cord and try to turn it on.

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Step 4: If none of the above methods work, it is recommended to send the computer to the after-sales service office for repair.

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1. Remove the battery on the back of the notebook, connect the computer with only the power adapter, and try to turn on the computer, if the boot is normal, then it is caused by poor battery contact or battery failure.

2. Only use the battery, do not connect the power adapter, if the boot is normal, then it should be caused by a problem with the power adapter or a short circuit in the power interface of the notebook.

3. Unplug the power cord, remove the battery, and press and hold the power button for 30 seconds without letting go. Try to boot up, if the boot is normal, then it is only caused by the abnormal BIOS of the motherboard.

4. Unplug the power cord, remove the battery, open the back cover of the memory, plug in and unplug the memory, wipe the gold finger part with an eraser, and plug it back in (don't reverse it).

5. If the above operations cannot solve the problem, it is recommended that the notebook be sent to the maintenance center for testing.

There are many reasons for the failure of the computer to turn on the boot button, such as: 1. The graphics card failure The computer keeps flashing the boot button, which may be caused by the failure of the graphics card, which causes the graphics card to fail to drive the screen, which causes the boot button to flash all the time and cannot be turned on normally. If this happens, you can replace it with a reliable graphics card.

Second, the power failure of the computer can not be turned on after flashing, you can check whether the power supply is normal, whether the power plug and the leakage protector are connected normally, and whether the power supply is sufficient, if there is a problem with the power supply or the power is insufficient, it may cause the power button to continue to flash and can not be turned on normally, you can replace the new power supply to solve the problem. Scattered Min three, down computer failure to roll to take another possible cause of the computer has been flickering can not turn on the reason is that the computer has a hardware failure, such as: CPU or memory failure, the computer because of the CPU crash and memory sticks continue to read and write failure, this kind of failure will cause the computer system to fail to load, causing the computer to flicker all the time can not turn on, such faults can only be repaired by replacing the corresponding hardware, in order to return to normal.