Serial interface destroyed

Liviu · March 16, 2023 at 2:20 PM Autor

Hi, somehow I destroyed the serial interface and now I'm trying to flash with FTDI adapter, I soldered the pins but the RX is not accessible anymore.
Can I solder the RX on another place on bord?

https://tinypic.host/i/shelly-1l-5.xxDFY

thgoebel · March 16, 2023 at 3:25 PM

Welcome to the forum,

To your issue: RX is directly connected to the ESP8266. You’ll have to dismantle the relay sub-board to gain access to the appropriate pin:

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Soldering is quite a pain with this fine pitch…

Didn’t try it yet. Good luck!

Liviu · March 17, 2023 at 1:31 PM Autor

Thank you, was to difficult to reflash and I ordered another one.