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January 5th, 2021 08:00

Keyboard Backlight flashes once when power button pushed, but laptop wont turn on?

HI All,

 

attempting to fire up my Latitude 5500 after the holiday break, and it wont turn on? when i push the power button, the keyboard backlight flashes once and then nothing happens? no other lights come on (it seems the caps lock light and the num lock light on the buttons stayed on for a second), not even the charging light when its plugged in,  and working from home, its a bit difficult to bring it in to our IS team, so i thought i'd look for recommendations from you fine folks.thanks!!

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February 8th, 2024 13:09

@U2CAMEB4ME​ thank you so much 

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April 16th, 2024 07:45

  • @U2CAMEB4ME​  This method worked for me. I pressed "D" key with the power button and it went to display test mode. After a fresh power-on, the display came as as normal.

    @U2CAMEB4ME Thank you.

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April 16th, 2024 16:40

What a POS laptop - Device completely bricked after a couple of years of minimal use.

Community Manager

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2.5K Posts

June 20th, 2024 16:42

Helpful video for how to run a built-in self-test or BIST at 1:54 mark:

(edited)

isProTip

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August 23rd, 2024 10:15

Got the same problemen. Laptop was working fine, did a reset pc. Reboot and keyboard blinking!

I can press D for the screentest (??) it works, already disconnect the battery, cmosbattery etc didn't help

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