Dell 7420, 5420 owner manual Flashing the Bios

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45 Flashing the BIOS

The BIOS may require flashing when an update is available or when replacing the system board. To flash the BIOS:

1Turn on the computer.

2Go to support.dell.com/support/downloads.

3Locate the BIOS update file for your computer:

NOTE: The Service Tag for your computer is located on a label at the bottom of your computer. For more information, see the Quick Start Guide that shipped with your computer.

If you have your computer’s Service Tag or Express Service Code:

aEnter your computer’s Service Tag or Express Service Code in the Service Tag or Express Service Code field.

bClick Submit and proceed to step 4.

If you do not have your computer’s Service Tag or Express Service Code:

aSelect one of the following options:

Automatically detect my Service Tag for me

Choose from My Products and Services List

Choose from a list of all Dell products

bClick Continue and follow the instructions on the screen.

4A list of results appears on the screen. Click BIOS.

5Click Download File to download the latest BIOS file.

6In the Please select your download method below window, click For Single File Download via Browser, and then click Download Now.

7In the Save As window, select an appropriate location to download the file on your computer.

8If the Download Complete window appears, click Close.

9Navigate to the folder where you downloaded the BIOS update file.

The file icon appears in the folder and is titled the same as the downloaded BIOS update file.

10Double-click the BIOS update file icon and follow the instructions that appear on the screen.

Flashing the BIOS

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Contents Dell Inspiron 14R Rev. A00 Contents Removing the Memory Modules Removing the Power-Adapter Port Removing the Display Bezel Removing the System Board Contents Turn Off Your Computer and Connected Devices Before You BeginRecommended Tools After Working Inside Your Computer After Working Inside Your Computer Procedure Removing the SwitchRemoving the Switch Replacing the Switch Replacing the Switch Removing the Battery Removing the Battery Replacing the Battery Replacing the Battery Removing the Keyboard Procedure Page Removing the Keyboard Postrequisites Replacing the KeyboardReplacing the Keyboard Removing the Base Cover Removing the Base Cover Replacing the Base Cover Replacing the Base Cover Removing the Memory Modules Removing the Memory Modules Replacing the Memory Modules Postrequisites Removing the Hard Drive Hard-drive assembly Removing the Hard Drive Page Removing the Hard Drive Replacing the Hard Drive Replacing the Hard Drive Removing the Optical Drive Page Replacing the Optical Drive Replacing the Optical Drive Removing the Palm Rest Page Page Removing the Palm Rest Replacing the Palm Rest Replacing the Palm Rest Removing the Mini-Card Page Replacing the Mini-Card Postrequisites Removing the Power-Adapter Port Removing the Power-Adapter Port Replacing the Power-Adapter Port Replacing the Power-Adapter Port Removing the Coin-Cell Battery Procedure Replacing the Coin-Cell Battery Replacing the Coin-Cell Battery Removing the Fan Removing the Fan Replacing the Fan Replacing the Fan Removing the Speakers Removing the Speakers Replacing the Speakers Replacing the Speakers Removing the Display Assembly Page Page Removing the Display Assembly Replacing the Display Assembly Replacing the Display Assembly Removing the Display Bezel Removing the Display Bezel Replacing the Display Bezel Replacing the Display Bezel Removing the Display Panel Page Replacing the Display Panel Replacing the Display Panel Removing the Display Hinges Page Replacing the Display Hinges Replacing the Display Hinges Removing the Camera Module Page Page Removing the Camera Module Replacing the Camera Module Replacing the Camera Module Removing the Processor Procedure Replacing the Processor Page Removing the System Board Procedure 101 Removing the System Board Replacing the System Board Entering the Service Tag in the Bios Removing the Processor Heat-Sink Procedure Replacing the Processor Heat-Sink Replacing the Processor Heat-Sink Flashing the Bios Flashing the Bios
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