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HP Recommended

Hp Probook 4520s doesn't switch on. Even when plug on a charger, the charger light on the laptop doesn't come on. I have changed charges, as well as the battery. It doesn't seem to charge nor switch on. But the charger works on a friend's laptop. 

1 REPLY 1
HP Recommended

Turn on the computer by holding the power button down for 20 full seconds then release. Press the Power button one more time (if necessary) to start the computer and then repeatedly press the ESC key and enter the diagnostic option page (F2 is diagnostics)

 

If the above does not work then remove the memory chips, clean them, blow out any dust using an air duster and try again

 

If that does not work then

Click here to check warranty
and
Click here for world-wide contact info
Or contact the closest authorized service center


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