Owon Hds242 Firmware //top\\

Joon let out a breath he didn't know he was holding. He disconnected the USB cable and screwed the back panel of the oscilloscope back on. He replaced the rubber feet, pressing them down firmly.

He found the thread he was looking for, deep in the archives. A user named ‘VoltMaster_99’ had posted a custom firmware hex file three years ago. The description was sparse: “HDS242 Fix. Improved ADC timing. Better screen refresh. Removed the annoying startup chime. Use at your own risk.”

If your computer does not recognize the device, you must install the CH340 or relevant USB-to-Serial drivers included in the Owon download package. Run the driver installer as an administrator on your Windows PC. Step 2: Connect to the PC in Upgrade Mode Turn off your Owon HDS242 completely. Connect the USB Type-C cable to your PC.

The firmware version is formatted as “VX.Y.Z”. For example:

Before attempting any update, you must identify your current version and hardware board: Turn on the device and press the F2 (System) Navigate to the second page by pressing F1 (About) to view the firmware version and hardware (HW) version. device.report Where to Find Firmware Official firmware can be found at the Lilliput (OWON) Download Center owon hds242 firmware

: Found on the newest HW 3.3.2 or 3.4 revisions (e.g., v8.4.0 or v8.6.4). 2. Official Firmware Acquisition

Before starting the update process, prepare your device and workspace to avoid bricking your oscilloscope:

Confirm your exact hardware revision. Installing firmware meant for the HDS272 or HDS2102 onto an HDS242 can permanently disable your unit. Step-by-Step Firmware Update Procedure

. For example, HW 3.1 typically runs v5.7.1, while HW 2.1 might run v4.6.1. Common Improvements Joon let out a breath he didn't know he was holding

: Firmware files that share the same version number are identical across the HDS242, HDS272, HDS242S and HDS272S—they only differ by the model name in the file header. This means that if you find a .upp firmware file intended for an HDS272S, it can usually be used on an HDS242 after modifying the header (more on this later).

New Features: Often adds measurement types or improved FFT analysis.

| Firmware Version | Reported By | Remarks | |---|---|---| | V1.6.0 | EEVblog user, 2021 | Shipped with earlier units | | V1.7.0 | EEVblog user, 2021 | Latest supported for some SN ranges | | V2.6.0 | EEVblog user | “No problems so far” | | V4.1.0 | Multiple users | Reported measurement bug on CH2 | | V8.0.1 | funky303 (2022) | Buggy Vmin/Vmax refresh | | V12.1.0 | TheGiolly (Feb 2026) | Recent revision, HW V3.6 |

Disconnect the USB cable (or follow instructions to safely remove), and the device should begin updating automatically. Do not turn off the device during this process. He found the thread he was looking for, deep in the archives

Some users reported that a newer firmware update caused the LCD to display upside down, which happened in older firmware versions before being corrected in later iterations. If this happens, ensure you are using the correct firmware for your hardware version, or contact Owon support for a rollback.

A full SCPI reference can be obtained by asking Owon support or by using the autocomplete feature in hds_term.py .

on your device to find your current firmware version and serial number. Hardware Compatibility: