Dell is an American multinational computer technology company that specializes in developing, selling, repairing and supports computer and computer related products and services. It is the most popular and well-recognized PC brand. Dell laptops come with amazing features like video support features, mid-sized tower feature making it reasonable and easy on the wallet. These laptops usually have a 14inch wide screen with high video and image definition and come with an option of Intel Core i3 processor, the Intel Core i5 processor or the Intel Core i7 processor. Yet sometimes users face some snags and dial Dell customer care number  1-844-794-2515 for troubleshoot.

Many times, Dell laptops experience issues with the screen display. Some symptoms of this issue may cause your computer to have a black or a blank screen, blurry, distorted etc. One of the ways in which you can fix this problem is by running a hardware diagnostics on the LCD screen. To learn how to do this, you can go through the following steps:

Step 1: Power off your Dell laptop.

Step 2: Disconnect any device from the PC and connect the adapter.

Step 3: Press and hold the D key and power on the laptop to enter LCD built-in self-test mode.

Step 4: Continue to hold the D key, till the screen changes color.

Step 5: The screen will change its colors to black, white, green, red and blue.

Step 6: Carefully inspect the screen for abnormalities

Step 7: Press ‘Esc’ to exit.

Note: If you do not detect any screen abnormalities in the built-in self-test mode then it means the laptop is functioning well. Proceed to the next step by updating the video card driver. However, if you detect any abnormalities during the built-in self-test mode then it is necessary to get your laptop checked or replaced.

If you run into any trouble while implementing these steps or if you have difficulty in understanding some of the procedures then contact Dell customer service number. keep in mind that this support number is available at any time of the day and their assistance is totally free.

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