I'm having problems with my Mobile Networks -> Connections Optimizer locking up and getting com.android.phone has stopped error. I'm posting this here because I think it has some relationship to what we're doing here...especially since I found the fix was posted on another forum by enormous!
http://forum.xda-developers.com/showthread.php?t=1957107
Have others had this problem when trying to go in and change your Mobile Network?
Also, enormous... How do you restore it and its data? I'm not sure what to do to fix the issue. I do not have a backup, if that's necessary.
A related issue (I think), is that my Tasker toggle scripts are not working currently while this is an issue. I'm guessing its related, but it says its running the 4G LTE Scan, but it won't go in and out from Airplane mode. So I'm guessing this is the reason.