As previously written here, I have given up on the Samsung App alltogether, and likewise my Samsung heatpump will be my last Samsung heatpump. At the moment the App only work on older tablets/phones with Android version 11 and earlier.
That said, there is a way of accessing and controlling your Samsung heatpump remotely with an Android 12 device but you then need to use a browser on your phone/tablet (and not the faulty app). Likewise you can also access your heatpump via a browser on a PC aswell.
1) Simply goto https://www.samsungsmartappliance.com/
2) Log in with your Samsung credentials.
3) After clicking the loginscreen please be aware that there is a popup where you need to click your preferred language in order to proceed. PLEASE note that you might have to scroll down to find that popup if you are using the browser on your phone.
4) Most likely you will now get an error stating that 'This ID is not available'
5) Click ok on that error, and then proceed to login again. Remember to choose your language in the popup (scroll down to see this on your phone if required).
6) After the second login attempt you should now see your heatpump, and can control is just like you used to in the app.
I am not 100% sure if this work for everybody as I might be depending on how you setup the access to the heatpump initially.
In my case I was able to access the heatpump both from a PC and my Samsung S21+ on Android 12
Hope this is of help (as a workaround)
