MCU module not responding

Hardware ZED2
1

My ZED2i Stereo Camera gives the following error when running ZED_Explorer

ZED_Explorer
\*\* \[SVO\] Hardware compression (NVENC) available \*\*
\[2025-11-09 21:05:14.405\] \[WARNING\] \[IMUHidReader.cpp:407\] \[Sensors\] MCU module not responding. Attempt module reboot
\[2025-11-09 21:05:14.440\] \[WARNING\] \[IMUHidReader.cpp:429\] \[Sensors\] MCU not responding while resetting module.. Second step recovery…
\[2025-11-09 21:05:14.475\] \[WARNING\] \[IMUHidReader.cpp:332\] Warning: Recover MCU returns ECx-99

Chatgpt recommends running a software ZED_Updater but that isn’t there on my ZED SDK tools.

2

Hi @Asgcs
Welcome to the Stereolabs community.

ChatGPT is not always good. ZED_Updater does not exist, indeed.

We need more details about your device’s status and system configuration to gain a clearer insight into the cause of your issue.
Could you connect the camera to the USB3 port, launch the ZED Diagnostic tool, and send the report file it produces?

More info here:

3 


{
    "AI Models": {
        "valid": [
            "MULTI CLASS DETECTION is optimized",
            "MULTI CLASS MEDIUM DETECTION is optimized",
            "MULTI CLASS ACCURATE DETECTION is optimized",
            "HUMAN BODY FAST DETECTION is optimized",
            "HUMAN BODY MEDIUM DETECTION is optimized",
            "HUMAN BODY ACCURATE DETECTION is optimized",
            "HUMAN BODY 38 FAST DETECTION is optimized",
            "HUMAN BODY 38 MEDIUM DETECTION is optimized",
            "HUMAN BODY 38 ACCURATE DETECTION is optimized",
            "PERSON HEAD DETECTION is optimized",
            "PERSON HEAD ACCURATE DETECTION is optimized",
            "REID ASSOCIATION is optimized",
            "NEURAL LIGHT DEPTH is optimized",
            "NEURAL DEPTH is optimized",
            "NEURAL PLUS DEPTH is optimized"
        ]
    },
    "Camera Test": {
        "CorruptedFirmware": [
        ],
        "InternalDevicesCount (GMSL)": [
        ],
        "InternalDevicesCount (USB)": [
        ],
        "MCUDetected": [
        ],
        "Serial Number": [
        ],
        "USBList": [
            {
                "USB_path": "/1",
                "idProduct": "0x301a",
                "idVendor": "0x413c"
            },
            {
                "USBMode": 3,
                "USB_path": "/1",
                "bDescriptorType": 1,
                "bDeviceProtocol": 1,
                "bLength": 18,
                "bMaxPacketSize0": 9,
                "bNumConfigurations": 1,
                "bcdDevice": "1.0",
                "bcdUSB": "3.0",
                "bcdUSBClass": 239,
                "bcdUSBSubClass": 2,
                "busNumber": 4,
                "device": "ZED2i",
                "iManufacturer": 1,
                "iProduct": 2,
                "iSerial": 4,
                "idProduct": "0xf880",
                "idVendor": "0x2b03"
            },
            {
                "USB_path": "/4",
                "idProduct": "0x18f3",
                "idVendor": "0x0b05"
            },
            {
                "USB_path": "/2",
                "idProduct": "0x2113",
                "idVendor": "0x413c"
            },
            {
                "USBMode": 2,
                "USB_path": "/1/2",
                "bDescriptorType": 1,
                "bDeviceProtocol": 0,
                "bLength": 18,
                "bMaxPacketSize0": 64,
                "bNumConfigurations": 1,
                "bcdDevice": "3.10",
                "bcdUSB": "2.0",
                "bcdUSBClass": 0,
                "bcdUSBSubClass": 0,
                "busNumber": 3,
                "device": "ZED2i MCU",
                "iManufacturer": 1,
                "iProduct": 2,
                "iSerial": 3,
                "idProduct": "0xf881",
                "idVendor": "0x2b03"
            },
            {
                "USB_path": "/1",
                "idProduct": "0x2512",
                "idVendor": "0x0424"
            },
            {
                "USB_path": "/6",
                "idProduct": "0x0608",
                "idVendor": "0x0e8d"
            },
            {
                "USB_path": "/5",
                "idProduct": "0x0610",
                "idVendor": "0x05e3"
            }
        ],
        "USBMode": [
        ],
        "ZED Camera Module Detected": [
        ],
        "ZED MCU Module Detected": [
        ],
        "ZEDCount": [
        ],
        "ZEDDetected": [
        ],
        "ZEDs": [
        ],
        "camera": [
        ],
        "error": [
            "<b>Specific resolutions are not available</b> <br/> Replug your device or connect the camera to another <b>USB 3.0</b> port.",
            "<b>Specific resolutions are not available</b> <br/> Replug your device or connect the camera to another <b>USB 3.0</b> port."
        ],
        "resolutions": [
        ],
        "sensors": [
        ]
    },
    "Graphics Card": {
        "deviceCount": 1,
        "deviceDriverVersion": 13000,
        "devices": [
            {
                "arch": "Ampere",
                "computeCapability": "8.6",
                "cores": 6144,
                "name": "NVIDIA RTX A4000",
                "totalMemoryBytes": "8209432576",
                "totalMemoryMB": 7829.125
            }
        ],
        "glx_info": "OpenGL vendor string: NVIDIA Corporation\nOpenGL renderer string: NVIDIA RTX A4000/PCIe/SSE2\nOpenGL core profile version string: 4.6.0 NVIDIA 580.95.05\nOpenGL core profile shading language version string: 4.60 NVIDIA\nOpenGL core profile context flags: (none)\nOpenGL core profile profile mask: core profile\nOpenGL core profile extensions:\nOpenGL version string: 4.6.0 NVIDIA 580.95.05\nOpenGL shading language version string: 4.60 NVIDIA\nOpenGL context flags: (none)\nOpenGL profile mask: (none)\nOpenGL extensions:\nOpenGL ES profile version string: OpenGL ES 3.2 NVIDIA 580.95.05\nOpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20\nOpenGL ES profile extensions:\n",
        "initResult": 0,
        "valid": [
            "<b>Graphics card: </b> NVIDIA RTX A4000"
        ]
    },
    "Processor": {
        "OS": "Ubuntu 22.04.5 LTS ",
        "avxSupported": true,
        "coreCount": "32",
        "cpu": " AMD Ryzen 9 5950X 16-Core Processor",
        "datetime": "2025-11-11 09:11:13 PM",
        "hyperThreading": "1",
        "motherboard": "ROG STRIX X570-E GAMING WIFI II, ASUSTeK COMPUTER INC.",
        "ramCapacity": "33.545675",
        "ramUsage": "",
        "ramUsed": "2.969080",
        "threadCount": "64",
        "valid": [
            "<b>Processor: </b>  AMD Ryzen 9 5950X 16-Core Processor",
            "<b>Motherboard: </b> ROG STRIX X570-E GAMING WIFI II, ASUSTeK COMPUTER INC."
        ]
    },
    "ZED SDK": {
        "CUDA Toolkit version": "V12.4.131 -->located in /usr/local/cuda-12.4/bin/nvcc",
        "CUDA loading": false,
        "GPU Driver Version": "Driver Version                            : 580.95.05",
        "GPU Performance": "    Performance State                     : P8",
        "ZED SDK Version (Diag)": "5.1.0",
        "ZED SDK Version (RT)": "5.1.0",
        "ai": {
            "checkAI": true,
            "cudaVersion": 12040,
            "tensorVersion": 100900
        },
        "binFiles": [
            "libsl_ai.so",
            "libsl_zed.so"
        ],
        "resourcesFiles": [
            "neural_depth_5.3.model",
            "neural_depth_light_5.2.model",
            "objects_accurate_3.2.model",
            "objects_medium_3.2.model",
            "objects_performance_3.2.model",
            "person_head_accurate_2.6.model",
            "person_head_performance_2.6.model",
            "person_reid_1.4.model",
            "positional_tracking_2.2.model",
            "skeleton_body18_3.2.model",
            "skeleton_body38_3.5.model"
        ],
        "resourcesFilesExpected": [
            "objects_performance_3.2"
        ],
        "valid": [
            "<b>ZED SDK version:</b> 5.1.0",
            "<b>CUDA version:</b> V12.4.131"
        ]
    }
}

Since i am a new user im not allowed to upload files so i have copied the results above

Software Ubuntu 22.04 LTS, CUDA 12.4, ZED SDK 5.1

4

Are you using WSL2?

Does the tool ZED_Sensor_Viewer work?

6

Not using WSL, Sensor_Viewer doesn’t give any output on ui interface

7

Have you modified the udev rules for some reason?
Are you using a custom Ubuntu-like OS?
Have you tried to reinstall the ZED SDK?

Before proceeding further, you should try to use the camera with another Windows or Ubuntu host PC with NVIDIA GPU to exclude hardware problems.

8

I have not modified the udev rules
i am using ubuntu linux on two computers with similar zed sdk versions will try reinstalling zed sdk on a 3rd computer and running for the previous two devices it gave the same error both meet the gpu conditions and were earlier running all features of the camera. If it is unfortunately a hardware problem what are my options? who do i contact for repairs?

9

Write an email to support@stereolabs.com and add a link to this thread.

1 Like