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I need help installing OpenBeken on a set of Tuya smart plugs

Kior_ 1149 9
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How can I install OpenBeken on these unidentified Tuya smart plugs if I don’t know the chipset and would prefer not to open them?

You cannot use Tuya Cloudcutter on these plugs if they use the LN882H chip; one plug was opened and identified as LN882H, and the forum says Cloudcutter does not work for LN882H [#21890140] [#21892986] [#21893738] Use the newer easy flasher/BK7231GUIFlashTool, which now supports LN882H, instead of the old flash backup/write script [#21890458] The soldering/UART method is still considered the more reliable approach because many devices are patched these days [#21888679] The board appears to have a 5 V relay and an AMS1117 regulator, but the key blocker here is the LN882H chipset, not the relay [#21890571]
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  • Requesting chipset identification for Tuya smart plugs

    #1 21888659
    Kior_
    Level 3  
    Posts: 5
    Hello,
    A few weeks ago, I bought this set of unidentified Tuya smart plugs. I'd like to use Tuya Cloud Cutter to install OpenBeken, but I have no idea about the chipset, and, being a novice, I'm not too keen on opening them up. Here are some photos and the link where I bought them:

    https://www.amazon.fr/dp/B0F2F77R89?ref_=pe_151259331_1319653081_t_fed_asin_title&th=1

    I need help installing OpenBeken on a set of Tuya smart plugs     I need help installing OpenBeken on a set of Tuya smart plugs I need help installing OpenBeken on a set of Tuya smart plugs I need help installing OpenBeken on a set of Tuya smart plugs

    “Device Update” screen with green check mark and the message “No updates available”.


    Thank you for your help
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  • #2 21888679
    p.kaczmarek2
    Moderator Smart Home  
    Posts: 14770
    Help: 659
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    Hey, what's the device MAC when paired with WiFi? Would you be able to open one? Usually soldering method is more reliable. Many devices are patched these days.
    Helpful post? Buy me a coffee.
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  • #3 21888689
    Kior_
    Level 3  
    Posts: 5
    The MAC address is 00:33:7A:24:EF:3C. If I open one, do I have to do it for all of them or I could use Tuya Cloud Cutter with a new configuration? I'll try to open one this afternoon.
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  • #4 21890140
    Kior_
    Level 3  
    Posts: 5
    I took apart a plug and I could see that the chip is an LN882H. Here are some photos.

    I need help installing OpenBeken on a set of Tuya smart plugs I need help installing OpenBeken on a set of Tuya smart plugs I need help installing OpenBeken on a set of Tuya smart plugs Close-up of a green PCB with an LSM9DS1 chip and a black probe touching solder pads.
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  • #6 21890534
    p.kaczmarek2
    Moderator Smart Home  
    Posts: 14770
    Help: 659
    Rate: 12913
    Btw, out of curiosity, what relay model is there? I wonder if it's 3.3V relay. Is there AMS1117-3.3V on the board?
    Helpful post? Buy me a coffee.
  • #7 21890571
    Kior_
    Level 3  
    Posts: 5
    >>21890534

    The relay appears to be 5 V. I think I've found an AMS1117 on the side.

    I need help installing OpenBeken on a set of Tuya smart plugs
    I need help installing OpenBeken on a set of Tuya smart plugs

    It's definitely not flashable with Tuya Cloud Cutter? No update planned?
    Thank you for your help.
  • #8 21892986
    p.kaczmarek2
    Moderator Smart Home  
    Posts: 14770
    Help: 659
    Rate: 12913
    Cloudcutter does not work for LN882H I think.

    Have you managed to get 2 MB backup of your plug?
    Helpful post? Buy me a coffee.
  • #9 21893738
    divadiow
    Level 38  
    Posts: 5220
    Help: 449
    Rate: 918
    p.kaczmarek2 wrote:
    Cloudcutter does not work for LN882H I think.


    yes, won't work for LN882H. There is something else in the works though for TuyaOS3 devices built with certain builds of the SDK.
  • #10 21894443
    Kior_
    Level 3  
    Posts: 5
    I need to buy a new UART adapter, mine no longer works. I'll keep you posted.
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Topic summary

LABEL_AI_GENERATED
Discussion about installing OpenBeken on unidentified Tuya smart plugs bought from Amazon. Initial attempts considered Tuya CloudCutter, but the device chipset was unknown and opening the plugs was avoided at first. After disassembly, the main MCU was identified as an LN882H, with a 5 V relay and an AMS1117 regulator visible on the board. The thread concludes that CloudCutter does not work for LN882H devices, while UART flashing and the newer BK7231GUIFlashTool/easy flasher support are suggested as the practical path, with a 2 MB backup still relevant for further work on TuyaOS3-based devices.
AI summary based on the discussion. May contain errors.
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