The laptop screen is the main way for the user to interact with the device, but if it’s not turning on there could be a variety of problems. There are three main possibilities that could be causing this problem; faulty hardware, damaged cables or power adapter. The first step in diagnosing the issue is to try plugging in an external monitor into your laptop. If you can see a picture on the external monitor then there might be a cable issue. The laptop in my possession is inoperable, the screen does not turn on but the hard drive LED light is still lit. This could be because the power button was turned off or the laptop battery died. Either way, I will need to plug in my laptop to charge it and see if the system starts up again without an issue.