3.5.2 Controller Info/Firmware Upgrade
Controller info will display the current firmware version for both the controller and the hand-held. You can also upgrade the
firmware from the SD card in this menu. The firmware for the hand-held will automatically be updated if you insert an SD card
with the most recent firmware. Firmware can be downloaded at
https://www.holley.com/support/resources/#Nitrous_Oxide_Systems
. Download the firmware and place it in the main folder of
the SD card. Insert the SD card into the slot and power on the NOS mini 2-stage. It will automatically detect the new firmware
and update accordingly. To update the controller firmware, you must navigate to the Contr. Settings menu, select Controller
Info, and then select update firmware. If you have more than one firmware update available, then you will have to select the
latest one.
3.5.3 Dash Setup
The main screen which displays the RPM gauge and bottle pressure can be changed to suit your vehicles min and max RPM
limits. If you do not have the optional 15661NOS bottle pressure transducer kit, you can disable the bottle pressure display in
the dash setup menu.
Chapter 4 Hand-Held & Controller Firmware Update
Download the firmware file from
https://www.holley.com/support/resources/#Nitrous_Oxide_Systems
Insert your micro SD card into your computer.
Open the micro SD card main folder and place the most recent version of the hand-held firmware into it and safely
remove the card from your computer
Update Controller
Firmware
Controller Firmware
information
Hand-held information
Min Tach Display on Home
Screen
Max Tach Display on Home Screen
Enable/Disable Bottle Pressure
Display
