If you are developing the firmware yourself, I can prioritize these by feasibility or write pseudocode for specific features (e.g., pulse width trigger, persistence mode). Let me know.
If you are looking for official updates:
Do not waste time searching. If your device works, you likely have the latest version. Check your current version in the System or About menu. If you experience bugs, there is currently no official patch to fix them.
If you are interested in custom firmware: Proceed with extreme caution.
The Zeeweii is a popular dual-channel handheld oscilloscope. Keeping its firmware updated is essential for fixing measurement inaccuracies, unlocking software-based features, and maintaining hardware stability. AliExpress Key Firmware Information Version History : Recent versions identified by users include , and even newer hardware-dependent branches like v2.0.1-III v2.0.5-III Hardware Revisions
: Firmware is often tied to specific hardware versions (e.g., PCB V9.4 or V10.1). Attempting to flash firmware meant for a different PCB revision can lead to device instability. Acquisition
: Official firmware is typically obtained directly by contacting Zeeweii Support or through community forums like the EEVblog Test Gear thread Update and Calibration Process
Updating the firmware often triggers an automatic entry into the calibration menu, but the adjustments must be performed manually. Manual AC Gain Calibration Procedure: Preparation : Connect the oscilloscope to a known 2.5V 1kHz sine wave and monitor the "PKPK" measurement. Enter Menu : Navigate to Menu -> Meas , press the button, and long-press the Adjust CH1
buttons to change CH1 Gain until the "PKPK" reading matches your signal generator's voltage. Adjust CH2 LEFT/RIGHT buttons to match the CH2 "PKPK" reading to the source. to exit and save the new calibration values. Community Modifications (ZeeTweak) New 2ch pocket DSO+SG - Zeeweii DSO2512G - EEVblog
The DSO2512G has become a favorite among hobbyists and electronics engineers for its impressive 120MHz bandwidth (single channel) and dual-channel capabilities at a budget-friendly price. However, as with many "Banggood-special" oscilloscopes, the hardware is often ahead of the software.
Updating your DSO2512G firmware is the single best way to improve trigger stability, fix UI bugs, and sometimes even unlock better sampling performance. Here is everything you need to know about the process. Why Update Your DSO2512G Firmware?
Out of the box, early units often shipped with firmware that struggled with:
Trigger Jitter: Waves "jumping" across the screen at high frequencies. Measurement Accuracy: Errors in Vpp and Frequency readouts.
System Hangs: The UI freezing when switching between XY mode and standard mode. Translation Errors: Confusing menu labels in English.
Newer firmware versions (v1.3 and above) generally provide a much smoother user experience and more reliable FFT (Fast Fourier Transform) calculations. Before You Start: Identify Your Version
Not all DSO2512Gs are identical. Some internal revisions use different chips (GD32 vs. STM32 clones). Turn on your device. Navigate to the Menu and look for System Info or About. Note down your current version (e.g., V1.1.8).
Warning: Flashing the wrong firmware version for your specific hardware revision can "brick" the device, leaving you with a white screen. Where to Find Official & Community Firmware
Since the manufacturer (Zeeweii) doesn’t always maintain a centralized English portal, the community has stepped in: dso2512g firmware
EEVblog Forum: The go-to source for the latest stable releases and custom-patched firmware.
GitHub Repositories: Search for "DSO2512G-Firmware-Archive" for older versions if you need to roll back.
Official Seller Pages: Sometimes AliExpress sellers provide a QR code or Google Drive link for the latest updates. Step-by-Step Installation Guide 1. Prepare the Hardware
You will need a USB-C cable that supports data transfer (some cheap charging cables won't work). Most DSO2512G updates are performed via a virtual serial port or by dragging a .bin file into a mounted drive. 2. Enter Update Mode Most units follow this sequence: Power the device OFF.
Hold down the "OK" button or the "Auto" button (this varies by revision). Connect it to your PC while holding the button.
The PC should recognize a new drive named "Removable Disk" or "DSO2512G." 3. Flash the File Locate the firmware file (usually ending in .bin or .hex). Drag and drop the new file into the oscilloscope’s drive.
The device may disconnect and reconnect. Wait for the file transfer to complete fully. Power cycle the device. 4. Recalibration (Critical)
After every firmware update, you must recalibrate the device to ensure the zero-line is accurate. Disconnect all probes from the inputs. Select "Self-Cal" from the menu.
Wait for the progress bar to finish before touching the device. Troubleshooting Common Issues
White Screen after Update: You likely flashed a firmware version meant for a different hardware revision. Try flashing an older version or a "Universal" build.
Device Not Recognized: Check your cable or try a USB 2.0 port instead of USB 3.0, as some older bootloaders have timing issues with high-speed ports.
"File Too Large" Error: Ensure you are flashing a firmware file specifically for the DSO2512G and not its smaller sibling, the DSO1511. Conclusion
The DSO2512G is a powerhouse for the price, but it lives and dies by its software. Keeping your firmware current ensures you’re getting the most out of the 120MHz hardware. Always back up your current version if possible, and follow community threads closely for the latest "Gold Master" releases.
Zeeweii DSO2512G oscilloscope Go to product viewer dialog for this item.
occasionally receives firmware updates to address bugs or add new features, such as improved trigger modes or measurement cursors. Below is a draft of the key information and steps for managing its firmware. Important Precautions
Hardware Compatibility: Zeeweii advises against upgrading unless necessary, as newer firmware is often tied to specific hardware revisions (e.g., V9.1 or V9.15). Using incompatible firmware can cause unpredictable errors or brick the device. If you are developing the firmware yourself, I
Persistent Power: You must keep the power button pressed throughout the entire flashing process to maintain the serial connection. Firmware Update Procedure (Windows)
Updating typically requires a PC, a USB cable, and specific WM Upgrade Tools.
Preparation: Download the correct firmware file (usually .fls) and ensure the CH341 serial driver is installed on your PC.
Configuration: Open the Upgrade Tool and set the "Chip" type to W80X.
Loading Firmware: Select your downloaded .fls firmware file in the tool. Connection: Connect the to your PC via USB while it is powered off.
Press and hold the power button. The device will enter a boot loop to enable the serial port. Flashing:
In the tool, select the newly appeared COM port and click "Open Serial". Click "Download" to start the flash.
Crucial: Do not release the power button until the tool displays "Success". Alternative & Modified Firmware
ZeeTweak: Community-driven projects like ZeeTweak on GitHub provide tools to reverse-engineer and modify firmware for added features like screenshot data file support and improved voltage calculations.
Custom FPGA Firmware: Some advanced users on EEVblog provide modified V1.3.0C firmware that may include necessary FPGA updates to fix "AUTO" mode issues. New 2ch pocket DSO+SG - Zeeweii DSO2512G - EEVblog
Updating the firmware on a Zeeweii DSO2512G is a technical process typically done to fix "AUTO" trigger issues or improve measurement accuracy. The official update method involves connecting the device to a PC via USB, but community-modified versions (like those from ) are often preferred for extra features. Prerequisites A High-Quality USB-C Cable: For data transfer (the charging-only cables won't work). A Windows PC: For the flashing software. The Firmware Files:
Usually provided by the seller or found in enthusiast communities like the EEVblog forum Backup (Recommended):
If you're using community mods, it's advised to dump your current SPI flash using an external programmer or USB FEL mode first. Update Procedure (Standard) Enter Update Mode Power off the device. Connect it to your computer via USB. Hold down the
button (or the specific boot-key mentioned in your version's instructions) while pressing the
button. The computer should recognize it as a "Winner Micro" or generic serial device. Run the Flashing Software Open the manufacturer's flash tool (often or a Python script like for advanced users). Select the correct assigned to your oscilloscope. Load the firmware image file (usually ending in Start the Flash Click "Download" or "Start." Wait for the progress bar to hit 100%. Do not disconnect the cable during this time, or you risk bricking the device. Recalibrate Once finished, restart the oscilloscope. Manual Calibration
(often found in the menu) to ensure the voltage levels and triggers align with the new software. Key Considerations PCB Version: The Zeeweii is a popular dual-channel handheld oscilloscope
Check your PCB version (e.g., V9.1) before flashing. Some firmware versions are only compatible with specific hardware iterations. FPGA vs. ARM:
Some updates (like V1.3.0C) require you to upgrade both the ARM firmware and the FPGA firmware. Failure to do both can cause the "AUTO" mode to malfunction. "If it ain't broke":
Many users report that unless your unit is significantly out of spec (>3% deviation), updating may not be necessary and carries a small risk of bricking. latest firmware version currently available for your specific PCB version?
taligentx/ZeeTweak: Reverse-engineered firmware ... - GitHub
To keep your ZEEWEII DSO2512G handheld oscilloscope running at its best, you can use either official updates or community-developed "tweaks" that improve usability. 1. Official Firmware Updates
Updates from the manufacturer often improve system stability, response times, and waveform smoothing. Where to find it: The official download is typically hosted on the ZEEWEII support page or provided by the manufacturer via email. Update Process: Download the latest firmware file (e.g., version 1.2.3). Connect the to your computer via USB.
Enter the USB update mode (often creates a temporary ramdisk on your PC).
Transfer the firmware file and follow the on-screen prompts. Post-Update Tip: It is highly recommended to run a self-calibration after flashing to fix any voltage offsets. 2. Community "ZeeTweak" & Modified Firmware
Because the factory fonts and UI can be difficult to read, developers in the engineering community (like those on ) have created modified versions. Key Improvements: Better Fonts:
Replaces the jagged factory fonts with cleaner, more legible versions. Screenshot Support: Enables compatibility with tools like to extract and render screenshots on a PC. Advanced Features:
Some mods unlock internal data normally hidden, like CSV waveform generation for use with sigrok PulseView GitHub Resources: Check repositories like timschuerewegen's DSO2512G firmware upgrade for open-source tools to modify or flash your device. 3. Troubleshooting & Hidden Tips Delete Button: In the gallery view of saved images, pressing the key often acts as a delete button. Firmware Mismatch:
Ensure the firmware you download is compatible with your PCB version (e.g., v9.15), as flashing the wrong version can cause instability or input failure. SD Card Support:
While the firmware contains code for SD cards, it is often disabled by default in the official software. Are you looking to fix a specific bug or just want to improve the font and UI legibility? New 2ch pocket DSO+SG - Zeeweii DSO2512G - EEVblog 9 Oct 2023 —
The DSO2512G is a popular handheld oscilloscope that offers impressive features for its price point. However, being a device often sourced from various Chinese manufacturers, the firmware situation can be confusing.
This guide covers how to identify your current version, find official updates, and the critical steps required to update the device safely.
The DSO2512G is often confused with similar devices.
As of now, there is no known open-source or hacked firmware for the DSO2512G. The hardware uses a Cortex-M3 (likely STM32F103) and an FPGA, but FNIRSI has not released the SDK. Attempting to modify the .upd file without knowledge will likely fail due to checksums.
