| Error / Problem | Solution | |----------------|----------| | “Update file not found” | – Re‑copy file to USB root. – Rename to HDS2102S.upg (case‑sensitive on some units). – Try another USB drive (2.0, ≤8GB). | | Update hangs at 0% / 50% | – Corrupted file: re‑download firmware. – Bad USB: reformat or change drive. – Interrupted: restart recovery mode (Step 2). | | Device now has white screen / no backlight | – Hardware brick? Try JTAG recovery (advanced, not covered here). Contact OWON support. | | Update succeeds but touch/buttons wrong | – Perform Factory Reset (Step 4) again. – Re‑install the previous known‑working firmware if available. | | USB drive not recognized at all | – Format as FAT32 with partition table (not GPT). – Use a smaller drive (2GB–8GB). – Try a different brand (Kingston, SanDisk often work). |
Owon occasionally updates the internal PCB components. Installing firmware meant for a different hardware revision can corrupt the bootloader. Step-by-Step Firmware Update Fix Instruction
Run the driver installer ( CH341SER.EXE or the specified USB driver provided by Owon) as an Administrator.
Connect the scope to your PC via USB. It will appear as a removable drive. Copy the Scope.upp file directly to the root of this drive. owon hds2102s firmware update fix
Before attempting a fix, confirm these symptoms:
For Users:
If your update fails midway, or if your device refuses to turn on after a flash, use the following troubleshooting workflows to fix the problem. Fix 1: The "Device Not Found" Error | Error / Problem | Solution | |----------------|----------|
What (e.g., Windows 10, Windows 11) are you using to run the tool?
Corrects phase shifts when outputting high-frequency sine waves.
Owon support has occasionally advised users with specific serial numbers not to attempt updates if a compatible version isn't explicitly listed for their model on the website. Step-by-Step Update Procedure | | Update hangs at 0% / 50%
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 .
While the firmware update process is usually straightforward, issues can arise. Some common problems that may occur during or after a firmware update include:
How to Fix and Update Your Owon HDS2102S Firmware The Owon HDS2102S is a popular 3-in-1 handheld oscilloscope, waveform generator, and multimeter. While it offers excellent value, early firmware versions suffer from slow screen refreshes, multimeter lag, and calibration bugs. Upgrading your firmware resolves these glitches and unlocks better performance.
Ensure the cable is secure, or try a different, shorter USB cable.