Sonoff TX T2EU

[AndreScalaPT]

Hi everyone,

I'm trying to find how can I flash my Sonoff TX T2EU devices.

Where can I found what connects to what to be able to flash it?
I search everyone and I can't find any information abou the EU versions!

Thanks very much

[barbudor]

Serial flashing seems to be the way to go
There's are quite a few guide on the Internet that explain how to access the RX, TX pins. GPIO0 being the Button1 can be lower to GND by pressing it at reset/power-up

[AndreScalaPT]

So, I connect like I'm doing right?

GND - GND
TX - RX
RX - TX
VCC - VCC

Then before connecting the USB I keep pressing the white button? And the wireless light should not blink!

I bought the FTDI Adapter FT232RL USB to TTL Serial for 3.3V and 5V

[AndreScalaPT]

I connected like I said before.

Then I tried connect the USB while pressing the white button;
Then I tried connect the USB while pressing the button and connect a cable to GRD and touch the second leg in that big black chip

The pc don't recognize the board

[barbudor]

This is generally a bad adapter because they can't provide enough power on 3V3 as ESP based device need generally more than 200mA to work correctly.

Alternatively if you have another good source of 3V3 power supply.

If you have a NodeMCU, you can also use it as a USD/serial adapter by maintaining the on-board ESP module in RESET

[barbudor]

Have to go for today but you could join the Tasmota Discord server, in channel #flashing-issues to get more interactive help

[AndreScalaPT]

Thanks for your help, I'll do :D
Best regards

[wexivi]

I have flashed several sonoff devices with serial connection and now tried to flash T2EU3C.
I succeeded to flash this with serial connection and connecting GND and TP2/GPIO0 on the other side. However I succeeded to connect it after flashing (tasmota-xxx wifi and ipaddress192.168.4.1). However after defining my own wifi I am not able to connect it. Any ideas how to continue?