Hi
I have Shelly Plus 1PM Gen3. I have successfully installed Tasmota via OTA (mgos) and started to config it.
BUT when I restarted it once then it was not possible to get Tasmota web access anymore. Just “Not found”. Even It forgot WiFi credentials and SSID name “ShellyPlus1PM-….” returned back.
Is there any way to re-flash Tasmota again with serial UART adapter or is it bricked forever?
You should be able to flash the minimal Tasmota build it and retry your next steps. The device might be running out of memory, but I’m not aware of specific issues with those devices, meaning, I haven’t seen this on this forum.
Where I used Tasmota it was with Sonoff. I’ve so far stuck with the Shelly firmwares.
I did not find any guide about serial flashing of this device. I was not successful with common steps (UART programmer - 3v3, rx, tx, gnd) which i use with Sonoff devices.
Did you connect via the header?
I did. It was not responding any way.
This is the correct model site
I’ve bricked a few Shelly 1 Plus devices with the same issue. Runs tasmota, then within 10 mins restarts with the old Shelly SSID, and webpage saying Not Found. I’d love to know what’s actually going on.
Same for me. In my case I’ve changed Tasmota template and after restart all tasmota content and SSID wiped out. Just “Not Found”.
