When i try to download a picture that is online i receive an error that reads "download size requires wi-fi." I downloaded some pictures yesterday without a problem,but for some reason now i receive this error. Im able to surf the net and do everything else on 4g. Is there something in my settings that i need to change to keep this error from happening again? Help please? Im sorry if this question has been posted before, i just purchased this phone so i am trying to adapt to all of the features. Thanks!