Service Manual

Troubleshooting

Flashing the BIOS

You may need to ash (update) the BIOS when an update is available or when you replace the system board.

Follow these steps to ash the BIOS:

1 Turn on your computer.

2 Go to www.dell.com/support.

3 Click Product support, enter the Service Tag of your computer, and then click Submit.

NOTE: If you do not have the Service Tag, use the auto-detect feature or manually browse for your computer

model.

4 Click Drivers & downloads → Find it myself.

5 Select the operating system installed on your computer.

6 Scroll down the page and expand BIOS.

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

8 After the download is complete, navigate to the folder where you saved the BIOS update le.

9 Double-click the BIOS update le icon and follow the instructions on the screen.

Flashing BIOS (USB key)

1 Follow the procedure from step 1 to step 7 in "Flashing the BIOS" to download the latest BIOS setup program le.

2 Create a bootable USB drive. For more information see the knowledge base article SLN143196 at www.dell.com/support.

3 Copy the BIOS setup program le to the bootable USB drive.

4 Connect the bootable USB drive to the computer that needs the BIOS update.

5 Restart the computer and press F12 when the Dell logo is displayed on the screen.

6 Boot to the USB drive from the One Time Boot Menu.

7 Type the BIOS setup program lename and press Enter.

8 The BIOS Update Utility appears. Follow the instructions on the screen to complete the BIOS update.

Reinstall Windows using a USB recovery drive

CAUTION: This process formats the hard drive and removes all data on your computer. Ensure that you back up data

on your computer before beginning this task.

NOTE: Before reinstalling Windows, ensure your computer has more than 2 GB of memory and more than 32 GB of

storage space.

NOTE: This process may take up to an hour to complete and your computer will restart during the recovery process.

1 Connect the USB recovery drive to your computer.

2 Restart your computer.

3 Press F12 after the Dell logo is displayed on the screen to access the boot menu.

A Preparing one-time boot menu message appears.

4 After the boot menu loads, select the USB recovery device under UEFI BOOT.

The system reboots and a screen to Choose the keyboard layout is displayed.

5 Choose your keyboard layout.

6 In the Choose an option screen, click Troubleshoot.

7 Click Recover from a drive.