I want to update bios but I not able to find bios update file in easy flash software of Asus laptop (x540LA). I am storing bios update file (X540LA-AS.303) on usb drive(fat32) and when i enter into EASY FLASH in boot menu, there is only 1 drive which is my usb drive and as I enter into it, I can only see folders but no bios update file. I have installed Ubuntu on the system. Does for updating bios windows is required ? Bios file download link
The file, after you unzip the archive, is indeed
Years ago I had a similar problem. The solution was to attach the right extension to the name. I don't remember the exact extension the utility expected; probably
.BIN (case shouldn't matter on FAT32). Note "the right extension" in your case may be different.
Rename the file to
X540LA-AS.303.BIN and retry. Or maybe even to
X540LA.BIN to make it fit the 8.3 convention. It's a long shot but as I said I once encountered a utility that was picky about it.