How to Update Dell BIOS Using USB Flash Drive on Dell PC

Steps Perform Flash BIOS Update Using a USB Flash Drive on Dell Laptop, Desktop and All in One PC Step 1: Create a Bootable USB Flash Drive using Dell Diagnostic Deployment Package (DDDP) Please note using DDDP will create a bootable partition of up to 2Gb in size, on the USB Flash Drive. Download the Dell Diagnostic Distribution Package (DDDP) Application: https://www.dell.com/support/kbdoc/en-in/000145519/how-to-create-a-bootable-usb-flash-drive-using-dell-diagnostic-deployment-package-dddp Go to: C:\Dell\Drivers\R174621 Open the DIAGS folder and delete everything except COMMAND.COM DELLBIO.BIN DELLRMK.BIN AUTOEXEC.BAT CONFIG.SYS Now Plug in the USB Flash drive- You will lose all the data on the USB Flash Drive so create a backup before this step. Navigate to C:\Dell\Drivers\R174621\ and run DDDP exe file Select "Install to a USB flash drive". This will make the USB Flash Drive bootable. Step 2: Download the BIOS update file and save it to the USB flash drive. Make a note of the BIOS update file e.g. 5573113.exe Note- Make sure battery is more than 10 % (Laptop users), and the charger is plugged in. Disconnect all the external devices except mouse keyboard and monitor. Do not power off the system during the BIOS Update • Shut down your Dell computer. • Plug in USB flash drive and restart your Dell computer. • Keep tapping F12 key as soon as you start the Dell PC. • Using the arrow keys, select USB Storage Device and press Enter key. • At the command prompt, type the full BIOS filename e.g. 5573113.exe and press Enter key. • Follow the instructions in the BIOS Update Utility screen to complete the update process.

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