Black screen after windows update Dell XPS 13 9300

To run the Built-In Self-Test perform the following:

Method 1

1. Turn the computer off.
2. Press and hold the D key while pressing the power button. This will start the Laptop LCD BIST.
3. The screen will display multiple flashing colors. Look for lines, distortion, or any other video issues you have observed.
4. The laptop will restart when the test is finished.

Method 2

1. Turn the computer off.
2. Press and hold the Fn key and power on your laptop while holding down the Fn key. This will start the Dell Pre-Boot System Assessment.
3. Your computer will now run a series of tests.
4. When your computer displays a series of horizontal and vertical color bars, it will prompt you with a pop-up message "Do you see the color bars? Yes / No
5. Press the N key to enter the Laptop LCD BIST. Note: If you do not respond for 30 seconds, the diagnostics will automatically assume your response as a 'No' and proceed to the Laptop LCD Built-In Self-Test.
6. The screen will display multiple flashing colors. Look for lines, distortion, or any other video issues you have observed.

The laptop will restart when the test is finished.