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Article Number: 000130178

How to Use and Troubleshoot the XPS 15 (9550)

Summary: Follow the guides below to troubleshoot and use your Dell XPS 15 9550.

This article may have been automatically translated. If you have any feedback regarding its quality, please let us know using the form at the bottom of this page.

Article Content

Symptoms

Troubleshooting various issues on the Dell XPS 15 9550

Cause

Usage and troubleshooting guide for Dell XPS 15 9550

Resolution

Table of Contents:

  1. Wireless Networking How-to's and Troubleshooting
  2. Dell Windows Support Center
  3. Mouse, Keyboard or Touchpad Not Working Correctly
  4. The Computer Stops Responding or Troubleshooting Slow Performance Issues
  5. Microsoft Windows Crashes, Stops, Restarts or a Blue Screen Appears
  6. Troubleshooting a Notebook LCD Screen That is Black, Blank or Hard to See
  7. How to Turn the Wireless Antenna On and Off on a Dell Computer
  8. XPS 15 (9550) Drivers
  9. Using and Troubleshooting the Dell Webcam and Dell Webcam Central Software
  10. Disabling or Enabling the Touchpad
  11. The Computer Fails to Start or There is No Video
  12. Dell PC Diagnostics Quick Test and SupportAssist for PCs and Tablets
  13. Specifications
  14. Port Locations
  15. Resetting the System Setup (BIOS) to its Default Settings
  16. Computer Component is not Recognized
 

This article provides information about using and troubleshooting your XPS 15 (9550).

1. Wireless Networking How-to's and Troubleshooting

For how-to's and troubleshooting information about wireless networking please go to the Dell Networking and Wireless Support Center.

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2. Dell Windows Support Center

This link takes you to the Dell Windows Support Center. Select the operating system that you need help with.

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3. Mouse, Keyboard, or Touchpad Not Working Correctly

See the following Dell Knowledge Base articles for information about using or troubleshooting your mouse, keyboard, or touchpad.


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4. The Computer Stops Responding or Troubleshooting Slow Performance Issues

  1. Press the power button for at least 15 seconds to make sure the computer turns off.
  2. Disconnect all external peripherals including the keyboard, mouse, and external monitor. Peripherals also include external storage devices such as flash drives, USB devices, printers, cards etc.
  3. Press the power button to see if the computer turns on and boots up okay; if not, see Dell Knowledge Base article Computer Does Not Turn on or is Stuck on the Dell Logo Screen.
  4. Download and install SupportAssist. For more information about how to obtain and install SupportAssist, browse to the SupportAssist for PCs and tablets page.
  5. Perform system maintenance on your computer-- for more information see Dell Knowledge Base article Optimization and Maintenance of Microsoft Windows or Troubleshooting Slow Performance Issues.
  6. Start attaching devices to the computer one at a time and test to see if your system stops responding.

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5. Microsoft Windows Crashes, Stops, Restarts, or a Blue Screen Appears

This link takes you to the Dell Knowledge Base article Microsoft Windows Locks Up or an Error Occurs.

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6. Troubleshooting a Notebook LCD Screen That is Black, Blank or Hard to See

For information about troubleshooting a notebook LCD Screen, see the Dell Knowledge Base article Troubleshooting a Notebook LCD Screen That is Black, Blank or Hard to See.

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7. How to Turn the Wireless Antenna On and Off on a Dell Computer

Press and hold the FN key and then press the PrtScr key. Repeating this toggles the wireless antenna off and on.

For more information about how to turn the wireless antenna on and off on a Dell Computer, see Dell Knowledge Base article How to Turn the Wireless Antenna On and Off on a Dell Computer.

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8. XPS 15 (9550) Drivers

For information about the drivers available, browse to the XPS 15 (9550) Driver Page.

This article provides information about how to download drivers for the XPS 15 (9550) computer, Drivers and Downloads FAQs.

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9. Using and Troubleshooting the Dell Webcam and Dell Webcam Central Software

For information about how to troubleshoot the webcam on your computer, see Dell Knowledge Base article Using and Troubleshooting the Dell Webcam and Dell Webcam Central Software.

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10. Disabling or Enabling the Touchpad

For information about how to turn the touch pad on or off, see Dell Knowledge Base article Disabling or Enabling the Touchpad.

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11. The Computer Fails to Start or There is No Video

If you experience a situation in which the computer does not start at all or if it does turn on (lights turn on and fans are spinning), but the computer does not show any image, perform the following steps:

  1. Disconnect all external peripherals including the keyboard, mouse, and external monitor. Peripherals also include external storage devices such as flash drives, USB devices, printers, cards, etc.
  2. Remove the A/C adapter from the computer and unplug the adapter from the A/C outlet.
  3. Press the power button for 15 seconds.
  4. Make sure the connections on the power cable and A/C adapter are firmly pressed together.
  5. Insert the A/C into the computer and a good A/C outlet.
  6. Press the power button to see if the computer turns on and boots up ok, if not, see Dell Knowledge Base article Computer Does Not Turn on, or is Stuck on the Dell Logo Screen.
  7. Start attaching devices one at a time and testing to see if the computer will turn on.

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12. Dell PC Diagnostics Quick Test and SupportAssist for PCs and Tablets

  • The fastest and easiest way to identify and resolve the most common issues is by using our Dell PC Diagnostics quick test. This will either fix the problem automatically, or it guides you through the steps to resolve the problem.
    Note: When the diagnostic identifies a failing part, depending on the failing part, we will immediately start the process for a free in-warranty replacement part.
  • SupportAssist, previously called My Dell, provides system updates, detects issues and sends you alerts based on your device, which makes solving and preventing problems easier than ever. This application gives you access to everything you must take the guesswork out of maintaining PCs and tablets. For more information such as how to obtain and install SupportAssist, browse to the SupportAssist for PCs and tablets page.
  • When the computer cannot access the Internet, you can run the integrated diagnostics on your computer, for more information, see Dell Knowledge Base article, Run Built-In Diagnostics (ePSA) for Your System.

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13. Specifications

For information about the XPS 15 (9550) Specifications, browse to the XPS 15 (9550) Online Manual Page, click PDF next to Specifications.

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14. Port Locations

For information about the port locations, browse to the XPS 15 (9550) Online Manual Page, click PDF next to Quick Start Guide or Specifications.

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15. Resetting the System Setup (BIOS) to its Default Settings

  1. Reboot the computer.
  2. When you see the Dell logo during POST, press the F2 key to enter the setup screen.
  3. On the System Setup screen, click Restore Settings.
  4. Confirm loading the BIOS defaults, if asked.
  5. Click Exit.
  6. Confirm exiting, if asked.

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16. Computer Component is not Recognized

SupportAssist, previously called My Dell, detects issues and sends you alerts based on your device, This application gives you access to everything you must take the guesswork out of maintaining PCs and tablets. For more information about how to obtain and install SupportAssist, browse to the SupportAssist for PCs and tablets page.

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Article Properties

Affected Product

XPS 15 9550

Last Published Date

01 May 2024

Version

8

Article Type

Solution

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