The most reliable method is using a USB drive via the utility in the BIOS. [Ноутбук] Как обновить BIOS? - MSI
: Do NOT attempt a BIOS flash running solely on battery power. Plug the laptop into a stable wall outlet. ms14b31 bios upd
Locate the latest non-beta version listed under the dropdown archive and click download. The most reliable method is using a USB
MSI provides a utility called (or Dragon Center / MSI Center on newer models). It can scan your system and recommend the correct ms14b31 bios upd file automatically. However, many advanced users prefer manual flashing to avoid software glitches. ms14b31 bios upd
After the system reboots into the flashing interface: