KBox C-103-CFL-x - User Guide, Rev. 1.0
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11.5.
Updating the uEFI BIOS
The KBox C-103-CFL has two SPI boot flashes programmed with the uEFI BIOS, a standard SPI boot flash and a
recovery SPI boot flash. The basic idea behind that is to always have at least one working uEFI BIOS flash available
regardless if there have been any flashing errors or not.
11.5.1.
Updating Procedure
For the BIOS update the customer should follow the instructions in the Readme.txt BIOS package.
11.5.2.
uEFI BIOS Recovery
In case of the standard SPI boot flash being corrupted and therefore the board not starting up, the board can be
booted from the recovery SPI boot flash if the DIP switch SW1, switch 2 is set to ON. For further information, refer to
the section 6.3.3 “DIP Switch” and 4.5.8 “RESCUE Button and RSQ LED”.
The uEFI BIOS code and settings are stored in the SPI boot flashes. Changes made to the uEFI
BIOS settings are available only in the currently selected SPI boot flash. Thus, switching over
to the other SPI boot flash may result in operation with different uEFI BIOS code and
settings.
11.5.3.
Determining the Active Flash
Sometimes it may be necessary to check which flash is active. On the AMI Aptio-based uEFI BIOS, the information is
available using the kboardinfo uEFI Shell command.
