Hi @noob_gamr,
Current spacedesk Viewer App is not capable on waking up Android device (from screen lock).
You have to manually wake up your device to launch/connect the spacedesk Viewer app.
spacedesk Android Viewer only has Automatic Connect (via IP or PC name) feature in the settings.
If this is set, it will automatically connects to the specified IP address or PC name upon manually launching the spacedesk Viewer App.