Can't save settings on Shelly Dimmer 2

Hi.

I am trying to set up Shelly Dimmer 2.

I open the Shelly app and click add device.

It did find a dimmer and proposed to connect to its wifi point.

I did connect. Then device is shown in pending state.

I open the internet settings and enter the local 2Ghz network login and password.

But I can't save them. Same with other settings.

Afterwards, I disconnect from the wifi point of the shelly dimmer and it disappears and in the app saying it's offline. Which make sense, because dimmer can't connect to wifi without a password.

What has gone wrong?

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The firmware can potentially be updated.

The exact version is on the screenshot.

Right now, I only have the Internet on my phone.

If I try to update the firmware, it says that there is no Internet connection.

I would assume that's because I am connected to Shelly DImmer WiFi point, and it does not have an internet connection.

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But I don't know how to allow the use of mobile internet.

Zitat

connect the shelly to the WLAN-AP of your smartphone.

How can I do it, if I can't save settings with wifi name and password on Shelly DImmer?

Personal hotspot is working on the phone, yes.