My Shelly Dimmer is requesting firmware upgrade, I can see it both from the web interface and from the Shelly app:
But every time I confirm it, both from the web page or app, the devices download the firmware (I can see traffic by sniffing it at the router), maybe it installs the fw, then it reboots. After reboot the firmware is not updated, and the message above appears again and again.
Attached to this post you can find the log file captured from the device.