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Non-Destructive Disassembling of Tuya GU10 5W Dimmable RGBCW LED Bulb with CBLC5 BK7231N BP5758D

divadiow 249 2
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  • Helpful post
    #1 21514919
    divadiow
    Level 34  
    Super-basic GU10 5w dimmable Tuya LED RGBCW bulb from Ali Express
    https://www.aliexpress.com/item/1005008628727499.html

    WiFi LED bulb with color-changing and dimming features



    Black box with Smart Spotlight RGB+CCT bulb. Smart spotlight packaging on the floor. White cardboard box with information about a GU10 WiFi bulb. Smart spotlight bulb next to packaging and instructions. White GU10 bulb socket on a wooden background. White, round, plastic cover on a light wooden background.

    no print markings on the chassis at all to identify it. plastic diffuser pops off with hardly any effort + thin blade edge. Unlike all the other GU10s I've had, this one does not have fixed prongs going down to live/neutral, which often makes taking apart a destructive process.
    Open LED lamp on wooden floor Disassembled LED bulb with visible internal components. Colorful LEDs on a round printed circuit board held in hand. Close-up of a colorful LED strip with visible diodes and electronic components. Disassembled LED bulb with visible electronic circuit board. Electronic circuit and LED bulb housing on a wooden background. Electronic circuit board with components held in a hand. A circuit board with various electronic components on a wooden surface. Printed circuit board with electronic components on a wooden table. Green printed circuit board with conductive traces and solder points. Close-up of a small printed circuit board with various electronic components on a blue background.

    CBLC5 - Beken BK7231N module and live/neutral wires de-soldered

    Electronic components on a blue background, including a green circuit board and an LED module. Small PCB with electronic components on a blue background. Small printed circuit board on a blue background.

    Diagram of CBLC5 module with pin connections.



    Boot log from TX2 at 115200 baud

    Code: Text
    Log in, to see the code



    Easy Flasher extraction
    Code: Text
    Log in, to see the code


    upk
    Code: JSON
    Log in, to see the code



    RX1, TX1, 3V3 and GND soldered for flashing with Easy Flasher

    Close-up of a small electronic board with connected wires. USB TTL adapter connected to a circuit board on a blue background.



    All soldered back. Aerial swap mid-way after pulling the sheath off by accident and not being able to put it back on. Fresh Kapton tape.

    Small green circuit board with several electronic components and soldered wires. Close-up view of an open plastic lamp holder with wires and green insulating material inside.



    Final OBK config template including correct BP5758D mapping and factory-matching RGB/CW current commands

    Code: JSON
    Log in, to see the code

    OpenBK7231N user interface with LED control options.


    Keywords:
    key8u54q9dtru5jw
    v82bcpgi4jatemzt
    220VWiFi灯杯 - schema ID: ezxhs0
    FXPOT
    SD-2023-10-20
    SD205LC
    GU10-WIFI



    Paired with Tuya app after dumping flash
    App screen showing added device SD GU10 Interface of an app for controlling an SD GU10 bulb with light color settings. Lighting control app interface with color wheel. Lighting control app interface against a starry night sky. Smartphone app interface with timer setting and lighting scene selection. SD GU10 smart lighting control app screen with scheduling options. Device update screen indicating no updates are available.

    no fw updates offered and version 1.5.40 - not cloudcutter exploitable

    https://github.com/OpenBekenIOT/webapp/commit/cb73cb7717adfae1d35288c7dcc096a710b9788f

    Flash backup will land at https://github.com/openshwprojects/FlashDumps as Tuya_GU10_RGBCW_(220VWiFi灯杯_schemaID-ezxhs0)_key8u54q9dtru5jw_v82bcpgi4jatemzt_CBLC5_1.5.40.bin
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  • #2 21518928
    p.kaczmarek2
    Moderator Smart Home  
    So in this case, you didn't need to remove the prongs to live/neutral and the wire inside was enough to move out the PCB? Well, that's convenient.
    Helpful post? Buy me a coffee.
  • #3 21518933
    divadiow
    Level 34  
    indeed. very pleasing GU10 conversion in that regard
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