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HP Recommended
hp probook 450 G1
Microsoft Windows 8 (64-bit)

so i have two hp probook laptops that almost have the same issue , i tried to put the adapter on and it doesnt work , for one it shows an orange light and the other shows a white blinking light 

 

for the one with the blinking light; i tried removing the battery and pressing down the power button for 30 seconds or 60 sec then connect the adapter without an  extension and it didnt work... tried removing the ram ..changed the adapter cable.. nothing 😞 😞  

 

 

help....

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