There seems to be problem with the LCD screen on your computer to confirm we will have to perform the ‘LCD BIST’ (Built in Self-test) on the computer. Please follow the steps mentioned below to run the “LCD BIST’.
Turn of the computer.
Press and hold down the ‘D’ key on the keyboard and press the Power button.
You will see different colors on the LCD screen. Please check if the colorsare appearing on the screen.
In addition, I would advise you to connect an external display and check for the issue.
DELL-Ravi Ch
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Posted August 11th, 2014 23:00
Hi Yassinos_gad,
There seems to be problem with the LCD screen on your computer to confirm we will have to perform the ‘LCD BIST’ (Built in Self-test) on the computer. Please follow the steps mentioned below to run the “LCD BIST’.
In addition, I would advise you to connect an external display and check for the issue.