How do I change the data usage cycle in Android 4.1.1? The option to change won't show.
The first screenshot below illustrates the problem: it seems as though the option to change the billing cycle does not exist! Notice that mobile data is turned off at this point.
Turning on mobile data at first doesn't seem to fix the problem as seen in the screenshot below. The option to change billing cycles is still not there.
To work around this issue, try the following: exit the preferences to the home screen, and open the data usage preferences again. You should be able to see the option to change the billing cycle now.
This seems to be a strange, intermittent problem with the interface. This solution was tested using Android 4.1.1 on a Galaxy Nexus. Your results may vary with other setups.