Dell XPS 15 9575 2-in-1 XPS 15 2-in-1 Service Manual - Page 64

Troubleshooting, Flashing the BIOS, Reinstall Windows using a USB recovery drive, Flashing BIOS (USB

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32 Troubleshooting Flashing the BIOS You may need to flash (update) the BIOS when an update is available or when you replace the system board. Follow these steps to flash 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 file. 9. Double-click the BIOS update file icon and follow the instructions on the screen. 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. 8. Choose one of the following options: • Just remove my files to do a quick format. • Fully clean the drive to do a complete format. 9. Click Recover to start the recovery process. 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 file. 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 file to the bootable USB drive. 4. Connect the bootable USB drive to the computer that needs the BIOS update. 64 Troubleshooting

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Troubleshooting
Flashing the BIOS
You may need to flash (update) the BIOS when an update is available or when you replace the system board.
Follow these steps to flash 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 file.
9.
Double-click the BIOS update file icon and follow the instructions on the screen.
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
.
8.
Choose one of the following options:
•
Just remove my files
to do a quick format.
•
Fully clean the drive
to do a complete format.
9.
Click
Recover
to start the recovery process.
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 file.
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 file to the bootable USB drive.
4.
Connect the bootable USB drive to the computer that needs the BIOS update.
32
64
Troubleshooting