It's possible the laptop's screen is no longer working and there could be another problem with it booting. You may want to try booting the laptop while connected to an external monitor. Power up the laptop and see if anything out puts to the external monitor.
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It's possible the laptop's screen is no longer working and there could be another problem with it booting. You may want to try booting the laptop while connected to an external monitor. Power up the laptop and see if anything out puts to the external monitor.