Dell XPSU125327CR manual Flashing the Bios

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Flashing the BIOS

You may need to flash (update) the BIOS when an update is available or when you replace the system board. To flash the BIOS:

1Turn on the computer.

2Go to dell.com/support.

3If you have your computer's Service Tag, type your computer's Service Tag and click Submit.

If you do not have your computer's Service Tag, click Detect Service Tag to allow automatic detection of the Service Tag.

NOTE: If the Service Tag cannot be detected automatically, select your product under the product categories.

4Click Drivers and Downloads.

5In the Operating System drop-down, select the operating system installed on your computer.

6Click BIOS.

7Click Download File to download the latest version of the BIOS for your computer.

8On the next page, select Single-file download and click Continue.

9Save the file and once the download is complete, navigate to the folder where you saved the BIOS update file.

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

56 Flashing the BIOS

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Contents Dell XPS Rev. A00 Contents Removing the Coin-Cell Battery Removing the Power-Adapter Port Removing the Windows-Button Board Before Working Inside Your Computer Before You BeginSafety Instructions After Working Inside Your Computer Procedure Removing the Base CoverScrews Base cover Replacing the Base Cover Removing the Battery Replacing the Battery Removing the Wireless Card Replacing the Wireless Card Removing the mSATA Card Replacing the mSATA Card Removing the Speakers Replacing the Speakers Removing the Coin-Cell Battery Coin-cell battery cable Replacing the Coin-Cell Battery Removing the I/O Board Replacing the I/O Board Removing the Fan Coin-cell battery cable Fan Screws Fan cable Replacing the Fan Removing the Heat Sink Replacing the Heat Sink Removing the Power-Adapter Port Replacing the Power-Adapter Port Removing the System Board Removing the System Board Keyboard cable Connector latch Entering the Service Tag in the Bios Replacing the System BoardRemoving the Display Assembly Display hinges Replacing the Display Assembly Removing the Display Back-Cover Page Replacing the Display Back-Cover Removing the Camera Module Replacing the Camera Module Removing the Windows-Button Board Replacing the Windows-Button Board Removing the Display Panel Peel off the display cable from the display panel Replacing the Display Panel Removing the Keyboard System board Screws MSATA bracket Screws Screws Keyboard Replacing the Keyboard Postrequisites Flashing the Bios