What NuGet packages should be installed to enable mobile devices to use cellular data to access the Internet and reach app services?
You can detect the state of Data Services in Mobile App using official Microsoft's Nuget Xamarin.Essential.
Then you can prompt the User to enable data service if it is off.
After that if you directly want to navigate user to mobile data page of Device>Setting UI>Mobile Data you can do that By Using Dependency Service.
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