Visit the official OWON Download Center and select the .
Note: The exact file names and menu labels may vary slightly by revision. Always refer to the readme.txt included in the firmware package.
If your screen is completely black and the key combos do nothing, you have a bootloader corruption. You need serial recovery via the using a TTL-to-USB adapter (3.3V logic, e.g., FT232RL).
For Manufacturers (suggested product improvements):
View Map