Launch the Owon Firmware Upgrade application executable ( .exe ) from your extracted folder.

Cross-reference your recorded hardware version with the available download packages.

: Recent updates (such as V4.7.1+) have introduced Ampere units for vertical measurements, useful for clamp meter users, and renamed certain commands (e.g., SQR to RMS). Verified Update Procedure

Use a high-quality data sync cable, not a cheap charging-only cable.

Cross-reference your device's serial number (found on the back sticker or inside the System Info menu) with the download descriptions. Owon often categorizes firmware by specific serial number prefixes (e.g., units starting with certain letters or numbers).

Press OK to start the routine. Let the unit sit completely still for the 5-10 minutes it takes to complete.

A USB Type-C cable (ensure it is a data cable, not just for charging). A PC running Windows.

: Certain older models use a "Gigadevice" with OTP (One-Time Programmable) SecureRom that may be physically non-upgradable. Verified Update Procedure

Boot your device, press the Utility button, and navigate to the System Info page. Note down your current firmware version number and hardware revision.

: Navigate to the "System" menu on your device to check your current firmware and serial number.