Can Not find the Tuya Devices by flashing with Raspberry Pi 5

[Bloodemi]

Hello there,

before i need to solder connections on my Thermostat, i figured out that this own Firmware would lovely fit into my needs!

So i took my raspberry with external monitor and tried to find the BT-002 (https://www.amazon.de/gp/product/B07GSRQJ11)

But it didnt worked, everytime when i was in the pairing mode and i put the device in the EZ Connection Mode it repeated
"SmartConfig complete.
Resending SmartConfig Packets"
without any result...

Can somebody might help me out? maybe @fashberg directly? I guess he is also a german guy so he could help me out? 😃

I really dont know what im doing wrong here....

Edit: Main Module is V3.1.1 and MCU Modul V1.0.0

Maybe there is no possibilty to flash this devices anymore?...