Firmware & Software; Firmware Revision History; Firmware Update Instructions - QSC K.2 Series Service Manual

3. Firmware & software

3.1 Firmware revision history

Current revision at the publication of this service manual (December 2017) is: v1.0.8.5
Firmware revision Release date
1.0.8.5 Pilot

3.2 Firmware update instructions

Requirements
• Windows PC only (native MAC OS not supported)
• USB Type A to microUSB cable
• AC power cord
Scenes
Saved user scenes (input selector setting, preset selection, crossover, delay, EQ, LED, and contrast) are stored in a different
flash memory location. These scenes should remain saved and load fine after a successful firmware update.
Updating firmware using the K.2 Updater application
1. Download the latest K.2 Updater application (in .zip format) from the QSC website.
2. Extract the contents of the zip file into a new folder on your computer.
3. View the contents of the new folder. Three files (K2Updater.exe, SLABHIDDEVICE.dll, and
SLABHIDtoSMBus.dll) should exist in the folder.
4. Connect the AC power cord to the power inlet on the K.2 amplifier module.
5. Remove the rotary encoder knob (to the right of the LCD screen).
6. Connect the USB Type A to microUSB cable. The Type A end connects to your computer's USB port and the microUSB
end connects to the port above the rotary encoder part on the K.2.
7. Turn the amplifier module on by flipping the power switch.
8. Open K2Updater.exe by double-clicking on the file/icon. The K.2 Updater application provides information about the
K.2 device in the table.
9. If an update is needed, a button to update the firmware
will appear under the "Actions" column. If no update is
needed, "Firmware up to date" will appear instead.
10. Click the Update button to proceed with the firmware
update.
Caution: Do not disconnect the USB cable or remove
power from the amplifier module during an update!
11. After the update is complete, power cycle the amplifier
module and verify the firmware version matches the K.2
Updater version.
Note: If you receive the message "Please update application. Firmware more recent", then the K.2 Updater application is
an older version than the firmware version detected in the K.2 amplifier module. Because individual firmware files are
stored and encoded in the K.2 Updater application, you must download a newer version of the K.2 Updater applica-
tion to peform a firmware update. If in doubt, always download the most recent K.2 Updater from the QSC website.
8
Notes
• Initial (Pilot) K.2 firmware release
Figure 3.2.1 - K.2 Updater application in Windows OS.
QSC, LLC