Dell Vostro 15 3510 Service Manual - Page 103
Updating BIOS on systems with BitLocker enabled, Updating your system BIOS using a USB flash drive
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NOTE: Follow the on-screen instructions. Updating BIOS on systems with BitLocker enabled CAUTION: If BitLocker is not suspended before updating the BIOS, the next time you reboot the system it will not recognize the BitLocker key. You will then be prompted to enter the recovery key to progress and the system will ask for this on each reboot. If the recovery key is not known this can result in data loss or an unnecessary operating system re-install. For more information on this subject, see Knowledge Article: https:// www.dell.com/support/article/sln153694 Updating your system BIOS using a USB flash drive About this task If the computer cannot load into Windows but there is still a need to update the BIOS, download the BIOS file using another computer and save it to a bootable USB flash drive. NOTE: You must use a bootable USB flash drive. For more information, see the knowledge base article SLN143196. Steps 1. Download the BIOS update .exe file to another computer. 2. Copy the .exe file onto the bootable USB flash drive. 3. Insert the USB flash drive into the computer that requires the BIOS update. 4. Restart the computer and press F12 when the Dell logo appears to display the One Time Boot Menu. 5. Using arrow keys, select USB Storage Device and press Enter. 6. The computer restarts to a Diag C:\> prompt. 7. Run the file by typing the complete filename and press Enter. 8. The BIOS Update Utility is displayed. Follow the on-screen instructions. Figure 1. DOS BIOS Update Screen System setup 103