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QSC K.2 Series Firmware Update
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QSC K.2 Series Firmware Update

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Regarding: K.2 Series (220~240V regions only)
Dear QSC Customer,
Thank you for your purchase of K.2 Series loudspeakers.
QSC upholds a very high standard for Product Reliability. Recently we have discovered an
issue that can, under certain irregular conditions lead to failure of K.2 loudspeakers in
countries using 220-240V power. QSC has developed a user-installable firmware update that
is recommended for K.2 speakers used in regions with 220-240V AC power, including:
 Europe
 Middle East / Africa
 Asia (excluding Japan & Taiwan)
 Australia / New Zealand
 South America (220-230V countries only)
NOTE: This update is NOT necessary in regions with 100-120V AC power, such as North
America, Central America, Caribbean, Japan or Taiwan.
Update Instructions are further on in this document or can be found in the document named:
"K.2 Firmware Update Instructions V1.1.0"
If you have any questions or concerns, please email:
Thank you for your understanding.
QSC Technical Support
K.2firmwareupdate@qsc.com

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Summary of Contents for QSC K.2 Series

  • Page 1 Dear QSC Customer, Thank you for your purchase of K.2 Series loudspeakers. QSC upholds a very high standard for Product Reliability. Recently we have discovered an issue that can, under certain irregular conditions lead to failure of K.2 loudspeakers in countries using 220-240V power.
  • Page 2 The units that are in our warehouse and QSC’s warehouse do not have the new firmware yet. All units shipping out now do not have the new firmware. QSC will let us know from when units coming from the factory will have the new firmware. Until further notice all units that ship out to you will have the old firmware and you will need to update them yourself.
  • Page 3 QSC K.2 Firmware V1.1.0.3101 Update Process 10-31-2018 Installing the Updater Application on a PC Hardware Requirements  Computer with Windows 7 or Newer  USB to Micro USB Cable For Windows 10: 1. Open file K2UpdaterInstall 2. Click NextClick Next...
  • Page 4 QSC K.2 Firmware V1.1.0.3101 Update Process 10-31-2018 4. Select Destination Folder  Click Next 5. Create desktop icon, create start menu folder Click Next QSC © 2018...
  • Page 5 QSC K.2 Firmware V1.1.0.3101 Update Process 10-31-2018 6. Select start Menu Folder Location Click Next Click Finish Completed QSC © 2018...

  • Page 6: For Windows 7

    QSC K.2 Firmware V1.1.0.3101 Update Process 10-31-2018 For Windows 7: For Win7 Please follow the same procedure as Win10. You probably will not need the CDC driver as described below. Extract the Android_Gadget_CDC_driver.zip 1. Open Device Manager on your computer (to open device manager, press WIN + R to launch Run Command, In Run Command type devmgmt.msc and hit OK button.
  • Page 7 QSC K.2 Firmware V1.1.0.3101 Update Process 10-31-2018 5. Click on “Let me pick from a list of device drivers on my computer” QSC © 2018...
  • Page 8 QSC K.2 Firmware V1.1.0.3101 Update Process 10-31-2018 6. Search for Ports (COM & LPT), Select Ports (COM & LPT)  Click Next 7. Click on “Have Disk…” QSC © 2018...
  • Page 9 QSC K.2 Firmware V1.1.0.3101 Update Process 10-31-2018 8. Browse to the location of Android_Gadget_CDC_driver.inf file extracted in step 1 10 . Choose Android_Gadget_CDC_driver.inf file press “Yes” on the Update Driver Warning prompt QSC © 2018...
  • Page 10 QSC K.2 Firmware V1.1.0.3101 Update Process 10-31-2018 11. Click on “Install this driver software anyway” 12. After the driver installation is compete, unplug the USB device (Amp Module) and plug the USB device (Amp Module) back in 13. Now repeat the steps listed for Windows 10 version to install the K2Updater.

  • Page 11: Firmware Update

    QSC K.2 Firmware V1.1.0.3101 Update Process 10-31-2018 K.2 Firmware Update WARNING: To avoid corruption during the firmware update process:  Do Not Power OFF the Amp module.  Do Not unplug the USB Cable.  Make sure the computer is connected to a Power Source.
  • Page 12 QSC K.2 Firmware V1.1.0.3101 Update Process 10-31-2018 4. Click Update. K.2 Update will indicate when update is completed. QSC © 2018...
  • Page 13 QSC K.2 Firmware V1.1.0.3101 Update Process 10-31-2018 5. When FW update is complete, remove USB cable, turn Amp Module OFF, then turn Amp Module 6. Use rotary encoder to highlight Settings. 7. Push enter button. 8. Visually verify FW revision (1.1.0.3101) and Model are correct: 9.