How to update (flash) the BIOS on X100:

Windows Mode:
1. Double click to open x100s105.exe.

2. Select "flash BIOS" button.

DOS Mode:
1. To update (flash) the BIOS on X100 in dos mode, a USB floppy drive and a bootable floppy disk with format.exe or format.com files are essential. 

2. Plug USB flash disk and USB FDD into USB port, then boot up.

3. Press F12 on XPC logo then choose USB FDD to boot up.

4. After boot up from USB FDD, type "FORMAT B: /s" to format USB flash disk.

5. Copy SFlash16.exe and x100s105 to the USB flash disk.

6. Run sflash16 x100s105 /x /s /C when boot up with USB flash disk.



 