Firmware versions are across mainboard versions. For example, a V1.x.x unit cannot be upgraded to V2.x.x.

Step 6: Regression and Feature Check Good firmware can’t fix one thing and break another. Jun ran a brief regression suite: channel calibration, FFT analysis, measurement averaging, USB mass-storage read/write, and the menu navigation speed. Everything behaved as expected. The UI refresh felt snappier; menus that had once skipped frames while rendering long lists now scrolled smoothly.

: Owon has occasionally advised users via email not to upgrade if the current firmware is stable, as some units ship with the latest supported version for their specific hardware.

Early units used "Gigadevice" flash chips which may have read-only OTP SecureRom and are reportedly not upgradable .

Always verify that your serial number range matches the firmware package requirements. Flashing incompatible firmware can lead to an "upside-down screen" or a bricked unit. specific download link for your device's current version number?