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

Question

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. 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...

p.kaczmarek2 · Answer

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?

kamilm20 · Answer

Hi,

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

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.

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?

p.kaczmarek2 · Answer

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?

kamilm20 · Answer

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!

p.kaczmarek2 · Answer

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...

kamilm20 · Answer

Yes - I have done all the .toml combinations and the effect is the same i.e. the hotspot does not get up.

Cutin · Answer

@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

kamilm20 · Answer

I let it go because I couldn't cope with it.

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

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