All modern motherboards can be flashed.
Not sure what exact motherboard you have (which Z270) but here is the link for the Gaming M7 - there is a link at the top for a manual on how to flash the motherboard, but you will be best looking at your current motherboard manual. https://www.msi.com/Motherboard/support/Z270-GAMING-M7.html
All modern motherboards can be flashed.
Not sure what exact motherboard you have (which Z270) but here is the link for the Gaming M7 - there is a link at the top for a manual on how to flash the motherboard, but you will be best looking at your current motherboard manual. https://www.msi.com/Motherboard/support/Z270-GAMING-M7.html