MSI B550 GAMING GEN3 AM4 ATX Motherboard - Manual (Page 48)

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Updating the BIOS with MSI Center
Before updating:
∙ Make sure the LAN driver is already installed and the internet connection is set
properly.
∙ Please close all other application software before updating the BIOS.
To update BIOS:
1. Install and launch MSI Center and go to Support page.
2. Select Live Update and click on Advance button.
3. Select the BIOS file and click on Install button.
4. The installation reminder will appear, then click the Install button on it.
5. The system will automatically restart to update BIOS.
6. After the flashing process is 100% completed, the system will restart
automatically.
Updating BIOS with Flash BIOS Button
1. Please download the latest BIOS file that matches your motherboard model from
the MSI® website.
2. Rename the BIOS file to MSI.ROM, and save it to the root of the USB storage device.
3. Connect the power supply to CPU_PWR1 and ATX_PWR1 . (No need to install CPU
and memory.)
4. Plug the USB storage device that contains the MSI.ROM file into the Flash BIOS
Port on the rear I/O panel.
5. Press the Flash BIOS Button to flash BIOS, and the LED starts flashing.
6. The LED will be turned off when the process is completed.