ASUS VivoBook 15 X542BP BIOS 302 Jan 28, 2019
... V4.0 Changes:- Optimize system performanceAbout OS Independent BIOS:Although installing a newer BIOS version might add new features, update various components, or improve the device's usability, this ... the most commonly used method to flash the BIOS is by creating a bootable USB or CD containing the update file, and running it from DOS. ...