We have uploaded the newest version of firmware for the 553-106
Digital Dash to the EFI section of our online Resource Documents & Library:
https://www.holley.com/support/resources/

For a direct download link click here.

Any Dash that has shipped after Feb 1, 2015 will already have this newest version of firmware.
To verify the version number on your unit choose the 'About' button from the main menu
and the firmware version will be listed. (Older units will be 3.0 Build 14, instead of 3.0 Build 20.)