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Why is my Laptop Screen Black?

Why does my laptop screen stay black?

A black laptop screen is often caused either by a faulty screen cable or by a broken motherboard. Below, we outline the problems that can arise, (as well as potential solutions.) 

Black laptop screen

Causes and solutions

  • A black laptop screen can be caused by a faulty screen cable. To ascertain whether this is, indeed, the cause of the problem, you'll need to connect an external monitor to your laptop. Here, we show you how to connect a second screen to your machine. If your laptop works after attaching an external screen, a faulty screen cable could be the reason for the fault. To test this further, slowly move your laptop screen backwards and forwards. If, in doing this, you notice any change in the laptop display, (the appearance of bars or additional colours, for example,) it is likely that the screen cable is to blame for your permanently black laptop screen. If, indeed, the screen cable is at fault, you'll need to purchase a replacement. As screen cables aren't the easiest of things to source, we've put together a handy list of stockists, (at the bottom of this page,) to help you out. 

  • If moving the screen backwards and forwards does nothing to change the appearance of the display, you may need to check that the screen cable is still sitting, firmly, in its connector. To do this, you'll need to remove your laptop screen. More information on this step can be found here.
  • If checking the screen cable connector doesn't rectify the problem, your black laptop screen may be the result of a faulty logic board, (the electronics found on the back of your laptop screen.) Often it is not possible to replace the logic board alone, so, if you suspect that this is the reason for yor black display, you'll need to purchase a replacement laptop screen.
  • Alternatively, your black laptop screen may be caused by a faulty graphics controller. If, when attaching an external screen to your machine, your laptop still doesn't work, then it is likely that the graphics controller is to blame. The graphics controller attaches to your motherboard and, it is often non-replaceable. In this case, you may need to replace the motherboard. As a company, we do not advise that you undertake this repair yourself unless you have been formally trained in this area and/or, you have the relevant experience and expertise. At the bottom of this page, you'll find a list of motherboard stockists.


*Disclaimer: As with any repair you choose to undertake, cannot be held responsible for any damage caused to your device during the replacement/repair process. If you feel anxious or unsure about completing this repair yourself, it is best to err on the side of caution.

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