For Users:
While holding the button, plug the USB cable from the PC into the oscilloscope.
: A community expert responded with a clear warning:
firmware is a critical fix for a known bug where the horizontal setting incorrectly displays waveforms (effectively acting as 2.5ns/div). 🛠️ Update Process owon hds2102s firmware update fix
Launch the upgrade tool. If the software recognizes the base chip interface (CH340 or similar internal bridge), attempt to re-flash the recovery firmware directly.
Before your computer can communicate with the oscilloscope, you must install the CH340 or specific Owon USB drivers included in the download package. Connect the powered-on HDS2102S to your PC via USB. Open your computer's .
: Turn the scope off and then back on. The device will detect the file, begin the upgrade automatically, and then shut down once finished. For Users: While holding the button, plug the
Ensure your 18650 batteries are charged to 100%. Alternatively, keep the device plugged into a stable USB-C power source during the process.
Turn off the device, remove the back cover, and take out the 18650 batteries for 5 minutes. This completely drains the capacitors and clears the volatile memory. Step 2: Source the Exact Firmware File
Updating your firmware is a precise process that requires matching the software to your specific hardware version to avoid bricking the device. The most common fix addressed by recent updates is the 2ns/div display issue . Critical Pre-Check: Version Compatibility If the software recognizes the base chip interface
: The official OWON software uses libusb as a driver, but owowon uses WinUSB. You can convert the device using the Zadig tool (https://zadig.akeo.ie/).
Reduces the delay when switching between voltage, resistance, and continuity modes.