Before diving into the "how," it is essential to understand the "what." Firmware is a specific class of computer software that provides the low-level control for a device's specific hardware. Unlike an app on your phone that you can delete and reinstall easily, firmware is the permanent software that lives on the device's memory chips.
If your speaker is on version 1.0.0 or 1.0.1, you will almost certainly benefit from an update. Harman Kardon Onyx Studio 6 Firmware Update
Never unplug or turn off the speaker during an update. If the speaker becomes bricked, you may need to send it for repair. Before diving into the "how," it is essential
Firmware v1.4.0 introduced refined DSP (Digital Signal Processing) settings, cleaning up high-volume artifacts. Before diving into the "how