How to Use and Troubleshoot the Inspiron 24 (3455) All-in-One

Table of Contents

1. Locate the Service Tag of your Inspiron 3455
2. How to Run Diagnostics on Your Dell Computer
3. How to Run the LCD Built-in Self Test (BIST)
4. Inspiron 24 (3455) Specification
5. Ports on Your Inspiron 24 (3455)
6. Device Drivers for Your Inspiron 24 (3455)
7. Wireless Networking How-To's and Troubleshooting
8. Resetting the System Setup (BIOS) to its Default Settings
9. The Computer Fails to Start or There is No Video
10. The Computer Stops Responding
11. Microsoft Windows Crashes, Stops, Restarts or a Blue Screen Appears
12. Mouse, Keyboard or Touchpad Not Working Correctly
13. Using and Troubleshooting the Dell Webcam on your Inspiron 24 (3455)
14. Dell Windows Support Center

Locate the Service Tag of your Inspiron 24 (3455) All-in-One

The Service Tag & Express Service Code label is located at the back of you Inspiron 24 (3455) All-in-One. Refer to the image below (Figure 1).

Figure 1: Service Tag Location

How to Run Diagnostics on Your Dell Computer

The fastest and easiest way to identify and resolve the problem is by using our online diagnostic tool. This will either fix the problem automatically, or it will guide you through the steps to resolve the problem. If the diagnostic identifies a failing part, depending on the failing part, we will immediately start the process for a free in-warranty replacement part.

Your Dell Inspiron 24 (3455) All-in-One is also shipped with the Dell Enhanced Pre-boot System Assessment (ePSA) diagnostics. If your Dell computer is unable to boot, you can run the pre-boot diagnostics to capture error codes.

Computer is able to access the internet.

Dell provides several options to maintain and diagnose your computer:

• The Dell PC Diagnostics quick test, can find the most common issues.

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• 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 need to 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.

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• When the computer cannot access the Internet, you can run the built-in diagnostics on your computer, for more information, refer to Dell Knowledge Base article, Run Built-In Diagnostics (ePSA) for Your System.

Computer is not able to access the internet.

For information on how to run the built-in diagnostics on your computer refer to Dell Knowledge Base article, Run Built-In Diagnostics for Your System.

How to Run the LCD Built-in Self Test (BIST)

You can invoke the LCD Built-in Self Test (BIST) by following these instructions:

1. Power Off the computer.
2. Ensure that the AC Adapter is plugged in securely.
3. Press and hold the Volume Up button (Button 1) located on the right side of the chassis (Figure 2).
4. While holding the Volume Up button, press the power button (Button 2) to invoke the LCD BIST (Figure 2).

At this point, you will see a series of colors flashing on-screen. Once LCD BIST is completed, the system will display the Dell logo and proceed to boot.

Besides isolating an LCD issue, the LCD BIST allows you to:

• Inspect the entire LCD for color purity on each screen.
• Better identify defects such as cracks in the LCD or stuck pixels that may not be apparent in a normal viewing mode.

Inspiron 24 (3455) Specifications

For information on the Inspiron 24 (3455) Specifications, browse to the Inspiron 3455 Online Manual.

Ports on Your Inspiron 24 (3455)

For information on the port locations, browse to the Inspiron 24 (3455) Online Manual Page, click PDF next to Quick Start Guide or Specifications.

Device Drivers for Your Inspiron 24 (3455)

For information on the drivers available, browse to the Inspiron 24 (3455) Driver Page.

This article provides information on how to download drivers for the Inspiron 24 (3455) computer, "How to Download and Install a Driver".

Wireless Networking How-To's and Troubleshooting

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

Resetting the System Setup (BIOS) to its Default Settings

To reset the System Setup (BIOS) to its Default Settings, follow these instructions:

Method 1

• Reboot the computer
• When you see the Dell logo during POST, press the F2 key to enter the setup screen.
• On the System Setup screen, press the F9 key.
• Press the Enter key on 'Yes' to Load Optimized Defaults and restart the computer.

Method 2

• Reboot the computer.
• When you see the Dell logo during POST, press the F2 key to enter the setup screen.
• On the System Setup screen, press the Right-arrow key to move to the Exit menu.
• Press the Down-arrow key until Restore Defaults is highlighted, and press the Enter key.
• Press the Enter key on 'Yes' to Load Optimized Defaults and restart the computer.

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, listen for a series of beeps during start-up.

The power button LED is a bi-color light that indicates the power state of your Dell Inspiron 24 (3455). Refer to the grid below for Power LED Status information:

The Dell Inspiron 24 (3455) Power LED blinks in a particular pattern if the display cannot show errors or problems. The following table depicts the amber blinking patterns with possible troubleshooting resolution:

When the power button does not blink, perform the following steps:

• Disconnect all external peripherals excluding the keyboard and mouse. Peripherals also include external storage devices such as flash drives, USB devices, printers, cards etc.
• Remove the A/C Adapter from the computer and unplug the adapter from the A/C outlet.
• Press and hold the Power button for 20-30 seconds to drain the static power.
• Connect the A/C Adapter and Power On the computer.
• Reconnect the peripherals one after the other and try.

The Computer Stops Responding

• Press the Power button for at least 15 seconds to make sure the computer turns off.
• 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.
• Press the power button to see if the computer turns on and boots up ok, if not, refer to Dell Knowledge Base article Computer Does Not Turn on, or is Stuck on the Dell Logo Screen.
• Download and install SupportAssist. For more information on how to obtain and install SupportAssist, browse to the SupportAssist for PCs and tablets page.
• Perform system maintenance on your computer, for more information refer to Dell Knowledge Base article Optimization and Maintenance of Microsoft Windows.
• Start attaching devices one at a time and test to see if the computer stops responding.

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

This link takes you to the Microsoft Knowledge Base article Microsoft Windows Crashes, Stops, Restarts or a Blue Screen Appears.

Mouse, Keyboard or Touchpad Not Working Correctly

Refer to the following Dell Knowledge Base articles for information on how to use or troubleshoot mouse, keyboard or touchpad issues.

• Keyboard Usage and Troubleshooting Guide
• Mouse Usage and Troubleshooting Guide
• Touchpad Usage and Troubleshooting Guide

Using and Troubleshooting the Dell Webcam on your Inspiron 24 (3455)

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

Dell Windows Support Center

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