The Zeeweii DSO2512G Go to product viewer dialog for this item.
is a popular 2-channel handheld oscilloscope. Updating its firmware typically involves putting the device into USB FEL mode to allow the computer to write to its internal SPI flash memory. 🛠️ Prerequisites
USB Cable: A standard USB-C or Micro-USB cable (depending on your hardware revision).
ZADIG Utility: Necessary to install the WinUSB driver for the device to be recognized by flashing tools.
Firmware File: A .bin or .fls file provided by the manufacturer or community members (e.g., from the EEVblog forums). 🚀 Step-by-Step Installation 1. Enter Bootloader (FEL) Mode
Because the device's ARM9 processor boots directly from SPI flash, you must prevent it from loading the existing firmware to enter "update mode."
Hardware Method: Some users pull the CS (Chip Select) pin of the SPI flash to ground using a ~47-ohm resistor.
Key Combo Method: For newer revisions, try holding down the Power button while the device is off. The device may enter a boot loop that enables the serial port or USB mode. 2. Driver Setup (Windows) Connect the DSO to your PC while in FEL mode. Open Zadig.
Select the detected "USB device" and install the WinUSB driver. 3. Flash the Firmware
Use a flashing tool such as the Winner Micro SDK tools or custom community tools like ZeeTweak. Select your firmware file (e.g., dso2512g_v1.3.0.bin).
Initiate the flash process. Crucial: If using the power-button method, you must keep the power button pressed throughout the entire flashing process to prevent the device from shutting down. 4. Verification
Once finished, release the power button and restart the device.
Long-press the Menu key to access the internal info screen and verify the version number (e.g., V1.3.0C or V2.0.x). ⚠️ Important Considerations
Hardware Versions: Ensure the firmware matches your PCB version (e.g., V10.1 or V9.4). Using the wrong version can cause screen glitches or trigger issues.
Calibration: After a firmware update, it is highly recommended to perform a self-calibration via the special menu (accessible by long-pressing Menu).
Modded Firmware: Community-modified versions like ZeeTweak or timschuerewegen’s mod often add features like screenshot CSV generation and improved UI elements.
What is the PCB version (usually visible if you open the case or in the menu)?
Installing or updating firmware on the Zeeweii DSO2512G Go to product viewer dialog for this item.
handheld oscilloscope typically involves using third-party tools, as the manufacturer (SigPeak/Zeeweii) does not maintain a formal official support portal for downloads. Option 1: Using Windows Upgrade Tools
This is the most common method for applying official or modified firmware updates.
Download Tools: Obtain the WM Upgrade Tools (for Winner Micro chips). Configuration: Set the language to English (top left menu, third option).
Select Chip: W80X and load the desired firmware .fls or .bin file. Connection: With the device off, connect it to your PC via USB. Press and hold the power button to enable the serial port.
Select the correct COM port in the software and click Open Serial.
Flashing: Click Download to begin the process. You must keep the power button held until the progress reaches 100%.
Post-Update: The device often enters an automatic calibration mode upon its first reboot after a successful flash. Option 2: Advanced Manual Flashing (FEL Mode) dso2512g firmware install
If your device is bricked or the standard menu doesn't appear, you can use USB FEL mode to access the SPI flash chip directly.
Entering FEL Mode: Pull the CS pin of the SPI flash chip to ground using a ~47 ohm resistor and press the power button. Alternatively, some users use a special image on a microSD card to trigger this mode.
Driver: Use Zadig to install the WinUSB driver once Windows detects the device.
Software: Use sunxi-fel.exe to read or write the firmware blobs directly to the 25Q32 flash chip. Important Considerations
Hardware Revisions: Newer firmware versions are often tied to specific hardware versions (e.g., PCB V9.1 vs. V10.1). Attempting to flash incompatible firmware may cause issues with the AUTO function or screen display.
Backup: Before flashing any new firmware, it is highly recommended to dump your current SPI flash using the FEL mode method so you can revert if the update fails.
Community Resources: For the latest modified firmware versions (like V1.3.0C or V2.0.x) and detailed step-by-step guides from owners, the EEVblog forum thread is the primary source of truth. New 2ch pocket DSO+SG - Zeeweii DSO2512G - EEVblog
Firmware installation for the Zeeweii DSO2512G requires specific WM Upgrade Tools for Windows or Python-based flashing scripts for Linux/macOS, utilizing the device's W80X chip architecture. Key procedures include holding the power button while connecting USB, using the .fls file, and validating PCB version compatibility to avoid functionality issues. Detailed community-driven, open-source resources and guides can be found at GitHub - taligentx/ZeeTweak and EEVblog. New 2ch pocket DSO+SG - Zeeweii DSO2512G - EEVblog
The DSO2512G has a passionate community. If you run into unique issues, check these places:
Even with careful steps, things can go wrong. Here is how to fix the most frequent issues:
echo "0x1fc9" > /sys/kernel/config/usb_gadget/g1/idVendor echo "0x013a" > /sys/kernel/config/usb_gadget/g1/idProduct echo "0x0100" > /sys/kernel/config/usb_gadget/g1/bcdDevice echo "0x0200" > /sys/kernel/config/usb_gadget/g1/bcdUSB
Warning: Installing firmware can brick the device. Proceed only if you accept the risk.
Requirements
Steps (assumes device uses USB-serial/bootloader flashing)
stm32flash -w file.bin -v -g 0x0 COMx
STM32_Programmer_CLI -c port=COMx -w file.bin 0x08000000
Troubleshooting
If you want, tell me which OS you’re using and provide the firmware filename and MCU type and I’ll give exact command lines.
The Zeeweii DSO2512G is a highly popular, budget-friendly 120MHz handheld oscilloscope, but keeping its firmware updated is essential for fixing bugs (like the CH2 offset) and unlocking new features. Installing the latest firmware requires a specific tool for the W80X chip and a precise sequence of physical button presses to enter "Download Mode." Pre-Installation Checklist
Before you begin, ensure you have the following ready to avoid bricking your device:
A High-Quality USB Data Cable: Use a cable known to handle data transfer, not just charging. Latest Firmware File: This is typically an .fls file.
WM Upgrade Tool: A Windows-based utility specifically for flashing W80X-based chips.
Battery Level: Ensure the unit is charged to at least 50% to prevent it from shutting down during the process. Step-by-Step DSO2512G Firmware Install Guide 1. Identify Your Hardware Version
Firmware compatibility depends heavily on your PCB version. You can find this in the device menu or by checking the back of the PCB if the case is open.
PCB V9.1/V9.13: Compatible with official FW V1.2.8B and community-modified versions like V1.3.0C.
PCB V9.14/V9.15: Compatible with newer FW V1.2.8C or V1.2.9C. 2. Prepare the Flashing Tool Download and extract the WM Upgrade Tool. The Zeeweii DSO2512G Go to product viewer dialog
Open the tool and change the language to English (usually the third option in the top-left menu). Set the "Chip" type to W80X.
Click the "Image" button and select your downloaded .fls firmware file. 3. Enter Download Mode
This is the most critical step and often where users struggle. Ensure the oscilloscope is Powered Off.
Connect the USB cable to your PC but not yet to the oscilloscope. Hold down the power button on the DSO2512G. While holding the power button, plug in the USB cable.
Continue holding the power button. Your PC should recognize a new COM port in the WM Upgrade Tool. 4. Flashing the Firmware In the tool, select the newly appeared COM port. Click "Open Serial" then click "Download".
A progress bar will appear. Do not release the power button until the progress bar reaches 100% and indicates completion.
Once finished, release the power button and disconnect the cable. Community Features & "ZeeTweak"
Many users opt for modified firmware versions found on platforms like GitHub (ZeeTweak) or the EEVblog forum. These community mods often provide:
CH2 Level Fixes: Corrects a persistent pixel offset in the second channel.
CSV Exports: Allows you to save waveform data in CSV format for analysis in Excel or Python.
Custom Backgrounds: Ability to change the UI color scheme or splash screen. Troubleshooting Common Issues
COM Port Not Appearing: Ensure you are holding the power button before and during the cable connection. If it still fails, try a different USB port or cable.
"Download Failed": This usually occurs if the power button is released too early. You must maintain pressure on the button throughout the entire data transfer.
"AUTO" Mode Glitches: If you upgrade to a very high firmware version (like V1.3.0C), you may also need to update the FPGA firmware separately to keep the "Auto" trigger functional. If you'd like to dive deeper, I can help you find:
The exact download links for the latest official or community firmware.
Instructions on how to dump your original firmware as a backup. A guide for calibrating the probes after a fresh install. New 2ch pocket DSO+SG - Zeeweii DSO2512G - EEVblog
The ZEEWEII DSO2512G Go to product viewer dialog for this item.
is a popular handheld oscilloscope, but its stock firmware can sometimes have bugs, such as issues with the NORM trigger mode. Updating or installing custom firmware like ZeeTweak can unlock new features, including cursor measurements for screenshots, waveform CSV generation, and improved UI elements. Prerequisites for Installation Before starting, ensure you have the following:
A Windows PC: Most flashing tools for this device are designed for Windows. Micro-USB Data Cable
: Use a high-quality cable to ensure a stable connection during the flash process. WM Upgrade Tools: The uses a Winner Micro chip (W80X series).
Firmware File: A valid .fls file (official or modified like ZeeTweak). Step-by-Step Firmware Installation Guide 1. Prepare the Software Download and extract the WM Upgrade Tools to your PC.
Launch the application. If the interface is in Chinese, click the third option in the top-left menu to change the language to English. 2. Configure the Flashing Tool Set the Chip type to W80X.
Click the path or "Open" button to select your downloaded firmware .fls file. 3. Put the into Flash Mode Ensure the device is powered OFF.
Press and hold the Power button on the oscilloscope. This enables the internal serial port for flashing. Part 7: Community and Resources The DSO2512G has
Connect the device to your PC via USB while continuing to hold the Power button. 4. Execute the Flash In the WM Upgrade Tool, select the newly appeared COM port. Click Open Serial and then click Download.
CRITICAL: You must keep the Power button held down until the progress bar reaches 100% and the flash is complete. Releasing it too early may cause the update to fail. 5. Finalize the Update
Once the tool indicates "Success," release the Power button.
Reboot the oscilloscope to verify the new firmware version, which is usually displayed briefly on the splash screen during startup. Important Troubleshooting & Tips
FPGA Mismatch: If you upgrade to firmware versions like V1.3.0C, you may also need to update the FPGA firmware to avoid "AUTO" button issues. This often requires an external programmer or a special microSD image to enter USB FEL mode.
Backup First: It is highly recommended to dump your current SPI flash before installing new firmware to ensure you can revert if errors occur.
Official vs. Custom: The official ZEEWEII site provides manuals, but community-driven projects like ZeeTweak on GitHub often offer more advanced functionality.
Upgrading the Zeeweii DSO2512G firmware typically requires a PC connection and specific flash tools, as the device does not support direct "over-the-air" or simple USB-drive updates like some high-end scopes. Prerequisites
Firmware File: Obtain the correct .fls (firmware) and .bin (FPGA, if needed) files for your specific hardware version. Check your hardware version in the device settings menu before starting.
W80X Flash Tool: Most versions use a Winner Micro flash utility for Windows.
USB-C Cable: High-quality data cable for connecting to your PC. Installation Steps Prepare the Software: Open the Winner Micro Upgrade Tool on your PC.
Change the language to English (usually the third option in the top-left menu). Set the "Chip" type to W80X. Select your firmware .fls image file. Enter Bootloader/Serial Mode: Turn off the oscilloscope.
Press and hold the power button. The screen may remain dark or show a boot loop.
Crucial: Keep holding the power button throughout the entire flashing process to maintain the serial connection. Flash the Firmware:
Connect the device to your PC via USB-C while still holding the power button.
In the flash tool, select the correct COM port assigned to the device. Click "Open Serial" and then "Download" (or "Flash").
Wait for the progress bar to reach 100%. Once "Flash device complete" appears, you can release the power button. Compatibility Warnings
PCB Versions: Firmware for newer PCB versions (e.g., V9.14) is often not compatible with older hardware versions (e.g., V8.7). Installing the wrong version can brick the device.
FPGA Sync: If you are installing a major update (like modified V1.3.0C), you may also need to update the FPGA firmware to avoid "AUTO" button issues.
For detailed firmware archives and modified versions, the Zeeweii DSO2512G community thread on EEVblog is the most reliable resource for current files. New 2ch pocket DSO+SG - Zeeweii DSO2512G - EEVblog
Since you cannot simply "download" a custom firmware feature like an app, the best way to "install" a good feature on the DSO2512G is to enable the hidden Network Connectivity.
The DSO2512G is built on a Linux kernel, and while it lacks a physical Ethernet port or Wi-Fi card, its USB Device port can be used to communicate with a PC.
Here is how to "install" the Network/Ethernet Over USB feature, which allows you to control the scope and grab screenshots programmatically.