Lenovo U410 can t turn on, plug in the power indicator, and the indicator light doesn t light up

Is there any power on my computer? You remove the battery and try. Or change the power cord. The substitution method can be tested out.

Summary. 1. If the indicator light on the laptop power adapter is not lit, first of all, we check whether the power adapter is connected to the socket and whether there is electricity at the socket. We can try to plug and unplug it again, if the indicator light still does not light up, it should be that the power adapter is broken.

Lenovo laptop plugged in, the power indicator does not light up, and it can't turn on the phone.

1. If the indicator light on the laptop power adapter is not lit, first of all, we check whether the power adapter is connected to the socket and whether there is electricity at the socket. We can try to plug and unplug it again, if the indicator light still does not light up, it should be that the power adapter is broken.

2. If the battery is used as the power supply, check whether the battery is installed correctly, whether the battery model is the original battery, whether the battery is fully charged, etc.

3. After eliminating the first two situations, it is possible that there is a problem with the power module of the notebook motherboard, please carefully check whether the DC board is normal.

4. You can use a multimeter to measure whether the output voltage of the power box is normal, whether the socket on the laptop is loose, whether the switch is effective, or whether the light is not lit when it is turned on, if so, it is probably because the lamp is aging.

5. If the power indicator of the notebook is not lit, first remove the battery to see if it can start the notebook when the power is on, if it can, then the LED power indicator is broken. If it doesn't work, it may be that your computer's adapter is broken. Try to see if you can charge the battery, if you can, then the LED power indicator is broken.

There is no indicator light on the power adapter.

There is no indicator light, usually the power supply or hardware is broken.

Need to take it for repair, non-system software issues.

Shake the power interface, see if it is not in good contact, if there is no reflection, try to start with the battery to see if it works, if you can use the battery, the front circuit of the computer is broken, that is, the power adapter to the main power supply part, if it is not good, the power supply circuit of the motherboard is broken, in general, the power interface is in poor contact or the motherboard is broken.

If the laptop fails to turn on, you can troubleshoot it as follows:

1) First remove the battery, unplug the power plug, press and hold the power button for about 5 seconds, then plug it in to see if it can be turned on, if it still can't be turned on, continue the following steps.

2) Remove the battery, unplug the power plug, and open the back cover screws with a Phillips screwdriver. There is an opening on one side of the cover, and the cover can be removed by gently cocking it along the opening with a screwdriver.

3) After removing the cover, find the memory module, and use a screwdriver to gently remove the clips on both sides of the memory module, so that the memory module can be released. Gently remove the memory module and wait a few moments before putting it back on.

4) Cover the cover plate in reverse according to the disassembly method, install the battery, and turn on the power button to restart.

If it is not a problem with the charger, then it is likely to be a problem with the computer motherboard, and the motherboard problem cannot be solved by ordinary problems, so it is recommended to send it for repair.

Hello there! It should be a problem such as loose or oxidized memory modules, and the treatment methods are as follows: the first method; Memory plugging and inserting method: Disassemble the notebook to find the memory module, open the live buckle, remove the memory module, wipe it clean, and turn it back in.

The second method; COMS battery dischargeFind the COMS battery in the notebook, press the live buckle, take out the battery, connect the battery to the positive and negative poles in turn for 30 seconds, turn it on, if it doesn't work, repeat it several times.

The third method; Find the hard disk cable in the notebook, check if it is loose, and unplug the socket plug plug.

Pro-3, I hope it helps you, give a thumbs up!

If necessary, you can contact me at any time, or you can click on my avatar to pay attention, and you can make targeted inquiries if you have troubles in the future, I am happy to serve you! Have a nice day!

Suspect a motherboard issue. Because, even if the power adapter is broken, there is still a battery working. There is no response when you turn it on, you can simply deal with it yourself, exit the battery, wait for a few minutes, reinstall the battery, and then turn it on to try. If it still doesn't work, it is recommended to send it for repair.

The laptop can't be turned on when it is powered on, there are 2 situations, 1 is that the power cord is broken AC no input or there is a problem with rectification and there is no DC output, 2 is that the power supply of the pen is broken.

Hello! Is there a display on the boot screen? If not, then it is likely that the computer hardware is malfunctioning, and it is recommended to send it for repair.

Here's how to fix it:

1. Check the connection status of the power cord of the computer, if it is loose, you can unplug the power cord and plug it in again.

2. If the computer power supply is normal, we can check the computer memory. Clean up the memory and memory slots, and use the elimination method to troubleshoot the memory and memory slots to prevent memory errors that may cause failure to boot normally or crash.

3. Open the side cover of the main chassis and check whether the CPU radiator fan and power supply fan are running. If the fan doesn't work, it's basically a motherboard or power supply problem, and we need to clean up the dust in the case.

4. If the above methods fail to solve the problem, it is likely to be caused by system damage and other faults, which can be solved by reinstalling the system by U disk.

If you can turn on the machine, it is best to turn the machine on and use a hair dryer to clean the dust inside, or clean the dust on the CPU.

It may be that the motherboard is broken, so it can't be turned on, so it is recommended that you go to the local repair point to repair it and replace the motherboard.

If you can't turn on the machine, the best way is to find after-sales personnel and let professional people come to your door to test it specifically.

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If the laptop cannot be turned on after continuous charging, please debug it according to the following scheme:

1. Release static electricity.

1. If the notebook only has an "external" battery, the operation method is: after the main power is turned off, unplug all the connecting cables and connected devices on the body, remove the external battery, press and hold the power button for 10 seconds, press and hold 3 times, replace the battery after the operation is completed, connect the power adapter and start the computer again.

2. If the notebook uses a "built-in" or "built-in + external" battery, you can find out whether the back of the notebook is a small hole the size of a circular needle's eye, and the word "reset" is written near the hole, you can unplug all the connecting wires and connected devices of the fuselage in the power-off state (there is an external battery that needs to be taken out of the external battery), poke the button in the "reset" hole with a paper clip or card needle, for 15 seconds, and check whether the host has been started after 15 seconds, if not, You need to connect the power adapter (if there is an external battery, the external battery will be connected first, and then the power adapter will be connected), and then the power adapter will be turned on after being connected.

2. Replace the same model power adapter for testing.

3. Try to replace the external battery of the same model for testing.

1. If the machine is fully charged, and the battery cannot be turned on after unplugging the power adapter, it may be that the battery is not charged, and the external battery is replaced.

4. If it still can't be turned on after the above operations, or if it is confirmed that the power adapter or battery hardware is faulty after the replacement test, it is recommended that you consider repairing.

5. If you still can't succeed according to the above methods, you can click on the avatar to enter the "Lenovo Business Service" homepage and consult an engineer online to solve the problem.

You can try to release static electricity.

Steps: Shut down first, remove the external power supply of the computer and all external devices such as USB flash drive, mouse, etc., press the power button for 20 seconds without connecting the power supply and shutting down, and then connect the external power supply separately, and see if it is normal after turning on the computer.

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

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;

Unplug the power cord, remove the battery, press and hold the power button for 30 seconds and don't let go, try to turn on the computer, if the boot is normal, then it is only caused by the abnormal BIOS of the motherboard;

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;

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

Press f8 to do not move to the advanced option appears in the let go, select "the latest correct configuration" enter to repair, it is not possible to press f8 to enter the safe mode to restore the system or reinstall the system (if you can enter the safe mode, it means that you have installed inappropriate things, uninstall all the inappropriate things before the accident, or restore the system or reinstall).

After you plug it in, the lights of the computer are not displayed, which means that your computer hardware is damaged, it is recommended to go to the after-sales service to test it to see if it is broken. Under normal circumstances, plugging in is the power supply is responsive.