VIEWSONIC VP3881a 37.5" 21:9 4K Curved IPS Monitor - Manual (Page 66)

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Firmware Update
For the best display performance and to resolve any known issues, it is best to keep
your monitor updated with the latest firmware version. With the supplied USB
cable and the vDisplayManager application, you can easily update your monitor’s
firmware.
To update the firmware:
1. Download and install the vDisplayManager application: https://color.viewsonic.
com/support/software/.
2. Connect the USB Type B male cable (square with 2 cut corners) to the USB Type B
port of your monitor. Then connect the other end of the cable to the USB port of
the computer.
3. Launch vDisplayManager. Select the Advanced tab in the side menu.
4. Click Update to check for any updates to your monitor’s firmware.
5. Wait until the update process is complete (if applicable).
NOTE: Any interruptions during the firmware update process may permanently
damage your monitor. Do not disconnect the USB cable or turn off your
PC and monitor.