Owon Hds2102s — Firmware Update Verified ~upd~

Updating the firmware on your Owon HDS2102S handheld oscilloscope is a critical maintenance step to resolve known display bugs and unlock new measurement features. Using a verified update process ensures you don't accidentally "brick" the device by using incompatible files. Why Update Your HDS2102S?

Recent verified updates address specific hardware-software synchronization issues that affected early units:

Timebase Accuracy: Fixed a prominent bug where the 2ns/div horizontal setting incorrectly displayed a 50 MHz signal as having a 16ns period instead of 20ns.

Enhanced Measurements: Newer versions like V4.7.1 and above have introduced RMS measurements and added vertical units in Amperes, which is particularly useful for users working with clamp meters.

Trigger Stability: Fixed 2-channel trigger bugs that occurred when using multiple inputs simultaneously. Verified Firmware Versions (2024-2025)

The HDS200 series uses different hardware branches. You must match your update to your current Main Version Number found in the System menu. Hardware Generation Recent Verified Versions Key Fixes/Features V1.x Branch 2ns/div graticule spacing fix V4.x Branch V4.7.1, V4.9.0 RMS measurements, Ampere units, Trigger fixes V8.x Branch General stability for 2024+ hardware models

Warning: According to official Owon support statements, if your device does not show an available update when you enter your full current version number on the Owon Download Center, you should not attempt to flash a different branch, as they are not cross-compatible. Step-by-Step Update Guide Follow these steps to ensure a safe, verified update:

Check Current Version: Turn on the scope, press System -> F2 (System), and go to the next page to find your current version and serial number.

Download the File: Visit the Owon Software Center and enter your model (HDS2102S) and current version. Prepare the Device:

Press System, navigate to the second page, and select Upgrade. Set the USB mode to MSC (Mass Storage Class).

Transfer Firmware: Connect the scope to your PC via USB. It will appear as a removable disk. Copy the firmware file (typically named Scope.upp) directly to the root directory.

Finalize: Safely eject the USB and power cycle the scope. It will automatically detect the file, perform the upgrade, and shut down once finished. Pro-Tips for a Successful Flash What is the latest FW version for OWON HDS2102s? - EEVblog

Verified OWON HDS2102S Firmware Update: A Comprehensive Guide

The OWON HDS2102S is a popular handheld oscilloscope that offers a range of features and functions for engineers, technicians, and electronics enthusiasts. However, like any electronic device, it requires periodic firmware updates to ensure optimal performance, fix bugs, and add new features. In this article, we will guide you through the process of updating the firmware of your OWON HDS2102S, verifying the update, and troubleshooting any potential issues.

Why Update the Firmware?

Updating the firmware of your OWON HDS2102S can bring several benefits, including:

Improved performance: Firmware updates often include optimizations and improvements that can enhance the device's performance, accuracy, and reliability.
New features: Updates can add new features, functions, or measurement capabilities to your oscilloscope, making it more versatile and useful.
Bug fixes: Firmware updates can fix known bugs, glitches, or issues that may be affecting your device's operation, ensuring that it works as expected.
Security patches: Updates can include security patches that protect your device from potential vulnerabilities and threats.

Preparing for the Firmware Update

Before you start the firmware update process, make sure you:

Check the current firmware version: Go to the OWON HDS2102S menu, select "Utility" > "System Info," and note down the current firmware version.
Download the latest firmware: Visit the OWON website, navigate to the "Downloads" or "Support" section, and download the latest firmware version for your OWON HDS2102S.
Charge the battery: Ensure that your OWON HDS2102S has a fully charged battery or connect it to a power source to prevent any interruptions during the update process.
Use a compatible USB cable: Use a compatible USB cable to connect your OWON HDS2102S to your computer.

Updating the Firmware

To update the firmware of your OWON HDS2102S, follow these steps:

Connect the oscilloscope to your computer: Connect your OWON HDS2102S to your computer using a compatible USB cable.
Open the firmware update tool: Download and install the OWON firmware update tool (if not already installed) and launch it on your computer.
Select the update file: Browse to the location where you saved the downloaded firmware file and select it.
Start the update process: Click "Update" or "Start" to begin the firmware update process. The tool will verify the firmware file and start the update process.
Wait for the update to complete: The update process may take several minutes, depending on the size of the firmware file and the speed of your computer. Do not disconnect the oscilloscope or interrupt the process.

Verifying the Firmware Update

After the update process is complete, verify that the new firmware version is installed correctly:

Restart the oscilloscope: Restart your OWON HDS2102S to ensure that the new firmware is loaded.
Check the firmware version: Go to the OWON HDS2102S menu, select "Utility" > "System Info," and verify that the new firmware version is displayed.

Troubleshooting Firmware Update Issues

If you encounter any issues during the firmware update process, refer to the following troubleshooting steps:

Update failed: If the update process fails, try restarting the oscilloscope and the update tool, and then repeat the update process.
Oscilloscope not recognized: If your computer does not recognize the OWON HDS2102S, try using a different USB port or a different USB cable.
Firmware version mismatch: If the firmware version displayed on the oscilloscope does not match the version you updated to, try restarting the oscilloscope or contact OWON technical support.

Conclusion

Updating the firmware of your OWON HDS2102S can bring several benefits, including improved performance, new features, bug fixes, and security patches. By following the steps outlined in this article, you can successfully update the firmware of your OWON HDS2102S and verify that the update was successful. If you encounter any issues during the update process, refer to the troubleshooting steps provided. Always ensure that you download the latest firmware version from the OWON website and follow the recommended update process to avoid any potential issues.

Verified Firmware Updates for the OWON HDS2102S Updating the firmware on the OWON HDS2102S

handheld oscilloscope is a critical maintenance step that can resolve hardware-level display bugs and improve measurement accuracy. However, unlike standard consumer electronics, these updates are highly hardware-specific and require careful verification to avoid bricking the device. Why Update? Key Fixes and Improvements

The most significant verified fix in recent firmware versions (such as ) addresses a major horizontal display discrepancy Original Issue

: In the 2ns/div range, graticules were incorrectly spaced, leading to inaccurate frequency readings (e.g., a 50 MHz signal appeared as 16ns instead of the correct 20ns). Verified Fix

: Version 1.5.1 corrected this scaling, ensuring that 50 MHz signals are properly timed across the 10-division display. Performance Stability

: Newer firmware versions also improve digital trigger robustness and hysteresis settings, making the device more reliable in electrically noisy environments. Critical Pre-Update Verification

Before attempting an update, you must verify your specific hardware version. OWON uses different firmware tracks for different manufacturing batches, and they are not cross-compatible Check Current Version owon hds2102s firmware update verified

: Navigate to the "System" menu to find your current firmware string. Major Version Lock : If your device is on a

track, it can only be updated to other V4 versions. You cannot "downgrade" to V1 or V2 tracks, nor can older V1 hardware typically use V4 firmware. Hardware Compatibility

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

If you have confirmed a compatible update is available from the official OWON Download Center , follow these verified steps: Software Prep : Download the Launcher.exe or update tool provided in the firmware package. Driver Installation : Connect the

to your PC via USB. Ensure the USB drivers are correctly identified in your PC's Device Manager Enter Update Mode Set the USB mode to in the device's system menu. Some versions require copying a file (e.g.,

) directly to the device's root directory while it is mounted as a removable disk. Other versions use the PC software to put the device into bootloader mode

by turning it off and then on while the software is "waiting".

: Once the progress bar finishes, the device will typically reboot automatically. Press on the device to confirm and finalize the installation. Important Safety Warning Official OWON support has occasionally advised users not to upgrade

if no specific issue is being experienced, stating that the latest versions for certain serial numbers may not be publicly posted. If your device is functioning correctly and does not show the 2ns/div display bug, it is often safer to remain on the factory-installed firmware. or locate the exact firmware file based on your device's serial number?

VERIFICATION REPORT

Device: OWON HDS2102S Status: Firmware Update Verified Date: [Current Date]

Final Checklist for a Verified Update

Before you close this article, confirm these five points:

[ ] The MD5 hash of your downloaded file matches the official source.
[ ] Your HDS2102S battery is at 100% and the AC adapter is connected.
[ ] You are using a known-good USB data cable (shorter than 1 meter is best).
[ ] The DFU tool recognizes the device as "STM32 DFU" before you click load.
[ ] You have saved your reference waveforms (if any) to a USB drive, as the flash will overwrite memory.

The Verdict

Do it. The bootloader is surprisingly robust. I’ve flashed three units (mine and two friends’) using this method, and none bricked. The improved trigger stability on the 100MHz bandwidth alone is worth the 5-minute effort.

Warning: Do not pull the USB drive during the "Writing" phase. That will brick it.

Have you tried the update? Did you find a newer .bin file? Let me know in the comments.

The Owon HDS2102S Go to product viewer dialog for this item. Updating the firmware on your Owon HDS2102S handheld

has received critical acclaim as a budget-friendly 3-in-1 handheld tool, particularly after a verified firmware update resolved a notorious display bug. Earlier versions suffered from an incorrect graticule spacing at the 2ns/div horizontal setting, which made a 100 MHz signal appear as 125 MHz. Verified Firmware Improvements

The most significant verified fix came with version 1.51, which corrected the 2ns/div display issue. Subsequent updates like v4.7.1 have further enhanced the device by adding RMS measurements and fixing dual-channel trigger bugs. Performance & Usability Review Multimeter & Generator: The

integrates a 20,000-count DMM and a 25 MHz arbitrary waveform generator (AWG), both of which are highly rated for their accuracy.

Portability: Users frequently cite its battery-powered nature as a major advantage for field work, such as HVAC maintenance or on-site embedded system troubleshooting.

Hardware Sensitivity: Unlike some competitors, Owon's firmware updates are strictly tied to specific hardware versions. Attempting to flash firmware meant for a different PCB version (e.g., v2.20 vs. later models) can brick the unit. Community Feedback

Forum users on EEVblog have shared their hands-on experiences:

“I wouldn't say the Owon is bad... not as a main scope, but as a portable battery powered unit for simple testing it's useful.” EEVblog · 1 year ago “For light duty, I use an Owon HDS2102S

and it does everything I need. It is also battery powered so it's nice and easy to bring to a customer site.” Reddit · r/embedded · 1 year ago How to Verify Your Update OWON HDS 200 Handheld Oscilloscope w/ builtin DMM/AWG

Step 1: Ignore the CD (Seriously)

The mini CD that came with your scope is likely outdated. Do not use it.

Go directly to the OWON website (owon.com.cn) or their official AliExpress store page. Note: OWON’s site navigation is terrible. Search for “HDS2102S” directly.

As of this post, the verified stable version is: HDS200_20240820.bin (Size: ~2.3MB). Always check the date stamp.

Step 2: The "Hidden" File System Trick

Here is where most people fail. You cannot just drag and drop the .bin file onto a large USB drive.

The verified method:

Format a USB 2.0 drive (4GB or 8GB max) to FAT32. ExFAT/NTFS will fail silently.
Create a folder on the root of the USB drive named: owon
Inside the owon folder, place the firmware file: HDS200_20240820.bin
Crucially: Rename the file to hds200.bin (lowercase). The bootloader is case-sensitive.

Final USB path: E:\owon\hds200.bin

Step 4: Verification

The update takes about 90 seconds.

Good: You will see "Erasing... Writing... Verifying... PASS"
Bad: "File not found" (check the owon folder name) or "CRC Error" (bad download).

Once it says "PASS", power cycle the device normally. Preparing for the Firmware Update Before you start