1. Installed AC adapter.
2. Please preparing a bootable utility disk and use it.
3. Decompress the ZIP file to this bootable disk.
4. Put the bootable disk into USB floppy, then boot
5. In DOS mode key in 'KBC' will start update.
6. After finishing, please restart the computer.

Program Information Category: Firmware Type: Free Version: R28i4b Beta Size: 69KB Works on: Windows Product page: here