in this video i will show hp laptop power button and keyboard light on off continuously no display problem open the laptop back cover & i check ram slot there was carbon i will open ram clean slot & ram clear the carbon then the RAM was inserted back into the slot. When I plugged in the charger and turned on the laptop again, the display came back on.
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#hp #elitebook #840 #g6 #power #button #and #keyboard #light #blinking #nodisplay
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