Wiring MOES MS-104B s WB2S to TTL FT232RL for OpenBK7231T Flashing

Hello. I bought MOES MS-104B s WB2S and I need to link it to TTL FT232RL but idk how to connect it. I need to flash the Moes switch with OpenBK7231T to work it with Shelly plus 2PM

AI: Do you know which pins on the MOES MS-104B s WB2S are TX, RX, GND, and VCC for connecting to the FT232RL?
no
AI: Is your FT232RL set to 3.3V or 5V, and do you know what voltage the MOES MS-104B s WB2S needs for flashing?
yes

Can you show the lower side of the board?

Well, the most reliable approach includes desoldering the daughter board with WB2S... but maybe we could flash without it. It depends on whether RX/TX pins of WB2S are used.

WB2S RX/TX is on the bottom side, so not visible from the top of the board:

Maybe try desoldering here first? Use flux and solder wick?


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Our flash tool: https://github.com/openshwprojects/BK7231GUIFlashTool

Can I just solder it to FT232RL pins? Will it work? I only need to flash it

You can give it a try, as long as you make sure to power WiFi module from 3.3V, but if there is no good LDO that can provide enough current on your board, then flashing may fail. So I'd say first try, and if it does not work, then we'll search for better solution.
I usually do like this (but for WB2S, choose BK7231T)

The Jumper is set to 3.3V but idk the pins and how to link them

You need use RX, TX, GND and 3.3V, just like on the video. Let me know if you have any specific questions.

I hope I did it correctly

I am afraid this is incorrect. You've soldered to wrong side of the module. Check my previous post. You soldered to: CEN, AD, PWM0, PWM1.

Then where are they

I don't know this particular converter board. I would desolder it from main board along with WB2S and then flash.

Am gonna give it a try I will desolder it, thank you for helping

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