[BK7231N/CBLC5] RGBCW GY E14 Smart Led Alexa Lamp 6W (Immax) with BP5758D LED driver

This is a short teardown and flashing guide for C37 6wE14 Smart bulb RGBCW 230V / 50Hz from Amazon.de.

Wenkman - 07.01.2023
Brand: Immax
Model: C37 6wE14 Smart bulb RGBCW 230V / 50Hz
Chip: BK7231N [CBLC5]
Shop: Amazon

I discovered Tasmota some time ago and immediately, without reading through it much, ordered the lamps described above, then did a bit of tinkering and tried to flash the ESP8266, but then had to realize that these lamps are not compatible with Tasmota. They have now BK7231 inside.

Have then further researched, am then on this Instructions encountered, since I didn't know exactly which chips are installed, I quickly dismantled a lamp.








I didn't have to flash by wires, I used a WiFi flashing - tuya-cloudcutter.

With the information I got to work, exactly according to the instructions, Raspberry Pi 4 set up, software installed, I only had to adapt the command to run it:

sudo ./tuya-cloudcutter.sh -w wlan0




and BÄM, all 6 lamps flashed with the firmware.

now I only had to figure the pins and the lamps worked




Now there was only one problem, the colors were not correct, BGR instead of RGB, but I solved that with the software control.


I hope I could help someone with this. Kind regards

With the help of p.kaczmarek2 I solved the problem with the twisted channels, simply create an /autoexec.bat in the web application under file system

and there I pasted this code

after that i clicked the Button "Save, Reset SVM and run file as script thread", now restart and all was clear.


many thanks @p.kaczmarek2