Why is my laptop LED light blinking?

Posted: 12/31/2019

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All I get while computer is plugged in is a blinking power button

All I get while computer is plugged in is a blinking power button and nothing else at all. Not sure if this is an indication a certain defect. It turns on for about 5-10secs and turns off really really fast then back on again. I am getting no fan spin and no other indications on what is going on. Thank you in advance for your help!!!


Jason

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Any update on this? I have the same problem

08/12/2020 by Humam Abusitta

I couldn't find the problem but I bought one off of ebay that had a broken screen and hinge and just pulled the motherboard out of it and used it to replace the one in my laptop and it has worked great since. I was able to buy the broken laptop for cheaper than just the motherboard on it's own. I'm not sure if I just got lucky or if that is the norm but it worked out for me in that way.

08/12/2020 by Jason

same problem with a lenovo ideapad 320s, one month after warranty end!

08/19/2020 by gregory

i have the same problem with jason

09/03/2020 by Fernando Martinez

It charges very well when the laptop is off

Then when I plugin the charger while using the laptop, just not more than 3 minutes it starts blinking and stops charging

09/28/2020 by mayanjataban

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Posted: 01/01/2020

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Hi @jason11 ,

A blinking power light is an indication that the laptop is in sleep mode.

Try either force stopping and shutting down the laptop by holding the Power button until it shuts down completely and then restart the laptop in the normal way

or

Try opening and closing the lid a few times and check if the laptop comes out of sleep mode by itself.

Update [01/03/2020]

Hi @jason11 ,

Can only suggest to reset the BIOS to default in case there are any corrupted settings which may prevent the laptop from functioning correctly.

To do this open the laptop and remove the battery pack and the RTC battery, press and hold the Power button for 30 seconds and then release the button and then replace the RTC battery and the battery pack.

Hopefully by doing this you will have reset the BIOS to default settings

Here's a link to the service manual for the laptop, taken from this webpage.

Scroll to p.40 to view the necessary pre-requisite steps and then the procedure on how to do this.

After you have done this, reconnect the charger and check if the laptop starts to charge correctly.

If it still wont charge then you have a motherboard problem

If it starts to charge allow it to charge fully before attempting to start the laptop.

If it starts OK allow it to boot all the way to the Windows desktop and allow the HDD activity to settle before checking things.

If you have Win 10 installed check if you have the latest chipset drivers and latest power management drivers installed. Click on the see files arrow to view details of driver version and release date.

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well it only blinks while I have the laptop plugged in and the battery doesn't seem to get to charge either, also there is no fan spin and no other signs of life other than that blinking button.

01/02/2020 by Jason

By opening & closing lid. It works for me. :]

Thanks,

08/03/2020 by pradeep khot

My Lennovo t420s started the power switch blinking , I tried taking the battery out holding the switch down for 30 sec , and open and closed the lid several times but with no luck .

10/26/2020 by Ozzy Barnes

And now the battery indicator light blinks twice , I tried all the tips recommended by all , if this is right I need a new motherboard . Can someone please advise to this problem and one above .

10/26/2020 by Ozzy Barnes

thanks a lot

it worked

January 17 by Harish S

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Posted: March 17

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Hey

I just $!^& blocked by this error today and tried some ways to fix this, first close the lid and insert the power plug to see the led light, the open the lid while the power plug is connected. Push and hold power button and Start button for 15 seconds. When in blinks white unplug the power cable. Don't do anything and wait for 1 minute, open the back door of the laptop and disconnect the battery then dismount the Ram. Wait for 1 minute. Reassemble the pcis and plug the power to the laptop without doing anything. Wait for 1 hour and then unplug the cable, now push the power button regularly. It worked for me.

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Closing lid and holding power button down eorked! Was in sleep mode.

Thanks so much!

July 2 by Brenda Ellison

How do you press power button after closing the lid?

July 7 by Zibran Akhtar

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Posted: September 19

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hi, be careful downloading latest lenovo updates , especially bios , when you thinkpad is supposed restart, my thinkpad E15 didnt . This is the second time, now i have a fixed red power light , a fixed white esc /fnlock white , and a white power light and im still waiting for a call back, after a lengthy service call from Indonesia?

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Posted: November 18

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H ow to know lenovo yoga 13 charging indication.

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