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3 Posts

07-23-2020

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Lenovo T420 power button LED blinking

2020-09-07, 1:59 AM

Hi, any idea what is the error when power LED (the green LED under the power button) blinking like every second?

 

Nothing on the LCD, totally blank.

 

 

Thank you

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3 Posts

07-23-2020

US

7 Signins

80 Page Views

  • Posts: 3
  • Registered: ‎07-23-2020
  • Location: US
  • Views: 80
  • Message 2 of 2

Re:Lenovo T420 power button LED blinking

2020-09-07, 2:26 AM

Some asking the same question in 2015, not sure if in the end he manage to boot-up. I will try to reset the CMOS. Is there any button to press while power up to reset the CMOS? Something like on handphone to enter factory mode.

 

https://forums.lenovo.com/t5/ThinkPad-T400-T500-and-newer-T-series-Laptops/T420-What-does-blinking-power-light-mean/m-p/3367532?page=1#3367532

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