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LIDL SAPM 1 A1 Clever Socket Internal Images and WiFi Matter Details

cijoml 1284 8
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  • Teardown photos for SAPM 1 A1 socket

    #1 21351459
    cijoml
    Level 9  
    Posts: 81
    Rate: 3
    View of the interior of the LIDL SAPM 1 A1 smart socket showing electronic components. Interior of a LIDL SAPM 1 A1 smart socket held in a hand. Close-up of the interior of LIDL SAPM 1 A1 smart socket. Close-up of the interior of a LIDL SAPM 1 A1 smart plug showing electronic components. Interior of LIDL SAPM 1 A1 smart socket with visible electronic components. Interior of LIDL SAPM 1 A1 smart socket. Interior of LIDL SAPM 1 A1 smart socket with visible electrical components. Interior of LIDL SAPM 1 A1 smart socket. Interior of LIDL SAPM 1 A1 socket with visible metal parts and springs. Interior of the LIDL SAPM 1 A1 smart socket with visible electronic components. Interior of the LIDL SAPM 1 A1 smart socket showing electronic components. Interior of the LIDL SAPM 1 A1 smart socket with visible electronic components. Interior of LIDL SAPM 1 A1 smart socket with visible components.

    Here are images from inside of LIDL SAPM 1 A1 matter over wifi clever socket
    AI: What specific information or feedback are you seeking regarding the internal images of the LIDL SAPM 1 A1 clever socket?
    photos to teardown database
    AI: Are you experiencing any specific issues or problems with the device's WiFi or Matter protocol capabilities?
    haven't tried flashing it yet
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  • #2 21351463
    p.kaczmarek2
    Moderator Smart Home  
    Posts: 14771
    Help: 659
    Rate: 12914
    Very interesting! Give it a go and first make a 2MB flash backup.
    Helpful post? Buy me a coffee.
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  • #3 21362490
    divadiow
    Level 38  
    Posts: 5220
    Help: 449
    Rate: 918
    @cijoml did you get any further?
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  • #4 21362648
    p.kaczmarek2
    Moderator Smart Home  
    Posts: 14771
    Help: 659
    Rate: 12914
    I guess that chip inside may be BK7231M? The non-Tuya one?
    Helpful post? Buy me a coffee.
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  • #5 21362717
    divadiow
    Level 38  
    Posts: 5220
    Help: 449
    Rate: 918
    could well be. or something new maybe. I've been looking for signs of a link to Tuya but don't see any in pics or the manual. I see the OP is posting about it here too https://www.vodnici.net/community/postid/40586/ :)

    https://www.lidl.cz/p/silvercrest-zasuvkovy-adapter-s-mericem-energie-smart-matter/p100380458

    The model number is HG10491-FR which produces a few hits if Googled.
    Attachments:
    • 27ebe058-fb17-47bc-ae85-be839b40b95a.pdf (936.61 KB) You must be logged in to download this attachment.

  • Flash errors on BK7231N and MAC issue

    #6 21790729
    cijoml
    Level 9  
    Posts: 81
    Rate: 3
    Hello I finally got time to try play with the device. I desoldered the module prom board. The device is 7231N device.
    However during flash with the newest flasher 186 I got write error. I got successfull write with old v50 and 1.18.175 OBK.
    There is a problem with device. The MAC is probably stored within FW so my device get MAC Device MAC: C8:47:8C:00:00:00
    BTW I cannot do OTA to the newest FW 1.18.231

    downloaded fw is in the attachment. Decoded fw:
    Code: JSON
    Log in, to see the code


    Device configuration, as extracted from Tuya:
    - WiFi LED on P23
    - Button (channel 1) on P24
    - Relay (channel 1) on P26
    Device seems to be using CB2S module, which is using BK7231N.
    And the Tuya section starts at 2052096, which is a default T1/XR806 and some T34 offset.
    Attachments:
    • readResult_BK7231N_QIO_lidl_2025-26-12-21-39-58.bin (2 MB) You must be logged in to download this attachment.

  • Tuya firmware and BK7231N boot log details

    #8 21790863
    divadiow
    Level 38  
    Posts: 5220
    Help: 449
    Rate: 918
    >>21790729

    from Tuya:
    Code: JSON
    Log in, to see the code

    Code: JSON
    Log in, to see the code

    Code: JSON
    Log in, to see the code


    from dump:
    Code: JSON
    Log in, to see the code


    boot log
    Code: Text
    Log in, to see the code
  • #9 21792086
    cijoml
    Level 9  
    Posts: 81
    Rate: 3
    >>21790777 Hello I do not have a screenshot, but it failed at write with broken checksum at about 70% writing process.

    Thank you I will try what you advice.
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Topic summary

LABEL_AI_GENERATED
Discussion about the internal hardware of a LIDL/Silvercrest SAPM 1 A1 smart socket with Matter over Wi‑Fi. Initial advice was to make a 2 MB flash backup before experimenting. The main chip was suspected to be BK7231M, later identified by the owner as BK7231N. The device showed no obvious Tuya link in the photos or manual, but Tuya cloud data later confirmed the product as a smart plug with model HG10491-FR and firmware details. Flashing attempts with a newer flasher failed with a write error and broken checksum around 70%, while older tools and OpenBeken 1.18.175 succeeded. The device MAC appeared corrupted or stored in firmware, resulting in a default MAC ending in 00:00:00. Further advice included overwriting the bootloader for OTA support and restoring RF data from backup.
AI summary based on the discussion. May contain errors.
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