-12 Write failed

[DariBer]

I have a Shelly Plug S I'm trying to revert from Tasmota to Shellys firmware. I followed the guide and first used the 0x7000 and then rebooted, I connect to the mg-xxxxx wifi, when I try to upload the firmware from Shelly, SHPLG-S.zip. I get an error message.

curl -i -F filedata=@/Users/dariber/Downloads/SHPLG-S.zip http://10.42.42.44/update HTTP/1.1 500 Internal Server Error Server: Mongoose/6.18 Content-Type: text/plain Connection: close

-12 Write failed

Can anyone one help me with what I'm doing wrong?

Thanx

[Diegocampy]

I don't have the solution, on the contrary, but I think it might interest you to know that you are not the only one, indeed, it seems to me that no one has been able to convert shelly Plus S back to the original firmware. I don't have the solution, on the contrary, but I think it might interest you to know that you are not the only one, indeed , it seems to me that no one has been able to convert shelly Plus S back to the original firmware. I also got the same error, and in this post many people write that the same problem. https://github.com/yaourdt/tasmota-to-mgos/issues/3