Reverting a Shelly 1 back to original software

I have several Shelly 1 devices that I flashed with ESPhome. I’d like to revert these back to the original Shelly software. I can’t find a download on the Shelly site for the original software or instructions on how to do this. Does anyone know if it can be done, and if so, how?

i haven’t done any shelly flahsing, so this is just an idea. Is there a way to “backup” the original before flashing… the you just need to get your hand on a new one and back that up and re flash the others?

See if this is useful

http://archive.shelly-tools.de/

Thanks!

I think I can change the Shelly from ESPhome to Tasmota via a serial connection then use the Tasmota OTA Web Server update option with that link you shared to put the Shelly software back on. I’ll report back if that works.