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Installing OpenBeken on Unlisted QNCX Smart Plug with Energy Measurement Feature

Mickaelf 1848 9
Best answers LABEL_AI_GENERATED

How can I flash OpenBeken on this unlisted QNCX smart plug with energy measurement, and what pin/configuration method should I use?

You can flash this plug, but it is harder than usual because there is no programming header; you need to solder to the T34/BK7231N QFN pins or desolder the T34 chip to flash it [#21029354] After flashing, you can try the GPIO extraction method to figure out the pin mapping [#21030312] If you get a “fail to extract keys” error, it likely means the Tuya .json config file was not created yet or was imported in the wrong place [#21030464][#21034703] There is also already a matching device discussed in another thread, which may help with the configuration [#21034703]
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  • Request for OpenBeken mapping on QNCX energy plug

    #1 21028948
    Mickaelf
    Level 3  
    Posts: 5

    Good morning,
    I have a QNCX brand smart plug (https://fr.aliexpress.com/item/1005005374840269.html?spm=a2g0o.order_list.order_list_main.24.29d95e5beB7gQG&gatewayAdapt=glo2fra) with energy measurement but I can't find it model in the database it looks a lot but doesn't have a map like the other models if someone can help me install openbeken that would be great
    I am attaching all the images and photos
    Thank you and see you soon.
    Close-up of a circuit board of a smart plug with integrated circuits and electronic components. Close-up of a circuit board from a smart plug, showing integrated circuits and components. Close-up of a PCB from a QNCX smart plug with visible electronic components. Image of the interior of a smart plug featuring an XGN relay on a green circuit board. Unfolded packaging of a QNCX smart plug with energy measurement. Firmware update screen with a message confirming successful completion of the process.
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  • Solder to QFN pins or desolder T34

    #2 21029354
    p.kaczmarek2
    Moderator Smart Home  
    Posts: 14797
    Help: 659
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    I think I recognize this device. It's a bit harder to flash than usual. You can find more info about that in the following thread:
    [T34/BL0937] Teardown Generic Wifi Smart Plug with Energy Measurement
    As you can see, no programming header is available there. You need to solder to QFN pins:
    Pinout diagram of T34 and BL0937 smart plug with a PCB view[/quote]
    You can also search more information for T34:
    https://www.elektroda.com/rtvforum/find.php?q=T34
    Alternatively, you can use the method with desoldering whole T34 from the board, which can be found here:
    [BK7231N / T34 ] Teardown Tuya Generic Wifi Wall Light Switch 3 Gang
    Helpful post? Buy me a coffee.
  • #3 21030229
    Mickaelf
    Level 3  
    Posts: 5

    thank you I look I could flash I have to find the right configuration of the pins now
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  • #4 21030312
    p.kaczmarek2
    Moderator Smart Home  
    Posts: 14797
    Help: 659
    Rate: 12954
    Once flashed correctly, you can use this method to try extracting GPIO config:


    Helpful post? Buy me a coffee.
  • #5 21030352
    Mickaelf
    Level 3  
    Posts: 5

    I tested this method but I got an error when I imported the file it says "the file is not an OBK config file", I will test again
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  • #6 21030464
    p.kaczmarek2
    Moderator Smart Home  
    Posts: 14797
    Help: 659
    Rate: 12954
    This error sounds strange. Maybe you're importing wrong file or importing it in the wrong place.

    There are indeed devices without Tuya config but the error message is different then.
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  • #8 21034703
    rufus4
    Level 11  
    Posts: 65
    Rate: 9

    Hi, there is the same device already in this topic: https://www.elektroda.com/rtvforum/topic4042412.html

    Added after 5 [minutes]:

    Mickaelf wrote:
    the message is " fail to extract keys"

    I think message this is about the Tuya .json config file. It could not be extracted. Perhaps because it's not getting created before.

  • Intermittent boot failure after power restoration

    #9 21164552
    djstreamteck
    Level 1  
    Posts: 1
    How is your socket doing after a year? I started having problems: after the electricity was restored, it doesn't start (only the blue LED is slightly lit), but the relay doesn't start and it doesn't connect to Wi-Fi. After a series of repeated on-off switches, it starts. On average, this happens in 5% of cases. What could be the reason? The chip was changed to esp-02s, nothing changed. Is the problem somewhere in the power line? How can I check? Thank you.
    The image shows a close-up of a circuit board with various electronic components, including capacitors and resistors.


  • #10 21165241
    p.kaczmarek2
    Moderator Smart Home  
    Posts: 14797
    Help: 659
    Rate: 12954
    I guess you didn't have OpenBeken's PowerSave enabled. Check out this guide:
    https://www.elektroda.com/rtvforum/topic3898805.html
    Helpful post? Buy me a coffee.
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Topic summary

LABEL_AI_GENERATED
The discussion revolves around installing OpenBeken firmware on a QNCX smart plug with energy measurement capabilities. The user struggles to find the model in the database and seeks assistance for flashing the device. Responses suggest that the flashing process is complex due to the absence of a programming header, requiring soldering to QFN pins or desoldering the T34 chip. The user encounters issues with importing configuration files, receiving error messages related to the Tuya .json config file. Additional troubleshooting advice is provided, including checking for OpenBeken's PowerSave settings after experiencing operational issues with the device.
AI summary based on the discussion. May contain errors.
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