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[OpenBL602] BL-200 Cozy Life - no hotspot after software upload

kamilm20 2310 8
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  • WiFi module not detected after OpenBL602 flash

    #1 20932262
    kamilm20
    Level 11  
    Posts: 53
    Rate: 20

    Hello,

    I have recently uploaded the OpenBL602 program to the BL-200 module - Cozy Life bulb. For this I used the BLDevCube software version 1.8.
    Screenshot of Bouffalo Lab Dev Cube 1.8.8 software configuration interface for BL602/604.

    Image of an electronic circuit board with visible components, including a WiFi module.



    The process went well but after desoldering and connecting 230V the hotspot does not start for some reason. I connected the device to the recommended terminal and found this information:


    [ 0][[31mERROR [0m: hal_board.c: 942] wifi NULL.

    [ 0][[31mERROR [0m: hal_board.c:1075] bt NULL.

    It looks like the wifi module is not detected. Can something be done about this?

    I am also attaching the logs.
    Attachments:
    • logs_BLDevCube.txt (20.54 KB) You must be logged in to download this attachment.
    • terminal_logs.txt (9.83 KB) You must be logged in to download this attachment.
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  • #2 20933091
    p.kaczmarek2
    Moderator Smart Home  
    Posts: 14793
    Help: 659
    Rate: 12941
    Unfortunately I haven't had this problem personally, but I read on one of the threads on our forum that it might be a matter of BLDevCube version and partition table. Did you also try flashing with an older DevCube, or was the same problem then?
    Helpful post? Buy me a coffee.

  • Upload parameter mismatch still prevents hotspot startup

    #3 20933612
    kamilm20
    Level 11  
    Posts: 53
    Rate: 20

    Hi,

    I have tried several times. In version 1.4.8 I have the error:

    Screenshot of a programming tool showing configuration and error during firmware upload.



    Then I tried different combinations - version 1.8 with parameters 1.8 and 1.8 with parameters 1.4.8 - still unfortunately no hotspot appears.
    User interface of Bouffalo Lab Dev Cube 1.8.0 program with configured firmware options.
    Screenshot of a microcontroller programming application with filled configuration fields.


    Additionally I did a test on the second module to exclude damage and the behavior is the same - but after uploading with parameters 1.4.8 it stopped responding after the COM port. The programmer is rather ok because I have programmed several ESPs. Do you have any idea what could be wrong?
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  • Try alternative BL602 partition TOML files

    #4 20935901
    p.kaczmarek2
    Moderator Smart Home  
    Posts: 14793
    Help: 659
    Rate: 12941
    I didn't have this problem, with me everything worked as in our video:
    https://www.youtube.com/watch?v=f5l7eNOuAZM
    If it doesn't work for you, you could at least try other partition settings (TOML files) available in the SDK.
    You could also try to download the new TOML files from the new BL602 SDK, maybe they changed something?
    Since one module doesn't work anyway, it's worth a try, maybe something will work.

    EDIT: Or maybe you should copy the TOML file from the old (our SDK) to the new flasher? Are they the same?
    Helpful post? Buy me a coffee.
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  • No configuration version enabled Wi-Fi hotspot

    #5 20938651
    kamilm20
    Level 11  
    Posts: 53
    Rate: 20

    Hi,

    I did a lot of testing today - my logs look similar. I read through the serial port after uploading various *.toml, boot*.bin files and unfortunately none of the configuration fired up the wifi. I am attaching the configuration and logs.

    The *.toml files mentioned vary between versions - I have used from 1.4.8 through 1.8.0 to 1.8.8 and none fixed the issue.

    If there is a need to download the contents and upload, I can do so, just need to be supplied with the knowledge of how to do it. Thank you for your help!
    Attachments:
    • [OpenBL602] BL-200 Cozy Life - no hotspot after software upload konfig2_1.PNG (51.37 KB) You must be logged in to download this attachment.
    • [OpenBL602] BL-200 Cozy Life - no hotspot after software upload konf_1_1.PNG (50.68 KB) You must be logged in to download this attachment.
    • 5_1_stary_toml.txt (5.14 KB) You must be logged in to download this attachment.
    • 4_1.txt (5.14 KB) You must be logged in to download this attachment.
    • [OpenBL602] BL-200 Cozy Life - no hotspot after software upload 4_1.PNG (50.32 KB) You must be logged in to download this attachment.
    • 3_1.txt (5.14 KB) You must be logged in to download this attachment.
    • [OpenBL602] BL-200 Cozy Life - no hotspot after software upload 3_1.PNG (50.05 KB) You must be logged in to download this attachment.
    • 2_1.txt (5.2 KB) You must be logged in to download this attachment.
    • 1_1.txt (4.74 KB) You must be logged in to download this attachment.

  • Use old OpenBL602 SDK TOML files

    #6 20938656
    p.kaczmarek2
    Moderator Smart Home  
    Posts: 14793
    Help: 659
    Rate: 12941
    These TOML files what they say you are uploading are from the latest SDK from Github, from Bouffallo Lab?

    If so, then try to use files from our old SDK, the one that OpenBeken/OpenBL602 uses:
    https://github.com/openshwprojects/OpenBL602/
    In other words, BLDevCube use new but TOML old.


    But as I say, it's basically guessing, with BL602 I had little to do, it's not a very popular platform...
    Helpful post? Buy me a coffee.
  • #7 20938736
    kamilm20
    Level 11  
    Posts: 53
    Rate: 20

    Yes - I have done all the .toml combinations and the effect is the same i.e. the hotspot does not get up.
    Attachments:
    • toml_bldev_OpenBL.txt (5.14 KB) You must be logged in to download this attachment.
    • toml_bldev_189_2M.txt (5.14 KB) You must be logged in to download this attachment.
    • toml_bldev_189_1M.txt (4.74 KB) You must be logged in to download this attachment.
    • toml_bldev_188.txt (4.74 KB) You must be logged in to download this attachment.
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  • #8 21641477
    Cutin
    Level 12  
    Posts: 92
    Rate: 11
    @kamilm20 Have you managed to solve this problem? I have exactly the same problem as you. I flash with version 1.8.0 the flashing process was successful but the device was not visible for WIFI.
    I did the same with version 1.4.8 and the effect is the same.

    The difference is only in the FW versions. I see you used OpenBL602_1.17.408 and I used OpenBL602_1.18.154 and OpenBL602_1.18.158
  • #9 21642087
    kamilm20
    Level 11  
    Posts: 53
    Rate: 20
    I let it go because I couldn't cope with it.
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Topic summary

LABEL_AI_GENERATED
After flashing OpenBL602/OpenBeken firmware to a BL-200 Cozy Life bulb with BLDevCube, the device boots but does not create a Wi‑Fi hotspot. Serial logs show `wifi NULL` and `bt NULL`, suggesting the Wi‑Fi/Bluetooth subsystem is not initialized or detected. Multiple flashing attempts were made with BLDevCube 1.4.8 and 1.8.0, using different TOML partition files and boot binaries from both older and newer SDK versions, but none restored hotspot functionality. The issue was reproduced on a second module as well, indicating a firmware/configuration compatibility problem rather than hardware damage. Suggested troubleshooting focused on trying different partition tables and using TOML files from the OpenBL602 SDK, but no working solution was found.
AI summary based on the discussion. May contain errors.
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