Recently i have purchased a Lumia 640XL as i have used to own in the past a 1520 and 920. Equally as excited but i have applied for safelink wireless program which works with tracfone seevices i have set up the data (i think) so i have data, calling and, texting options but for some reason i can't send MMS to people but i can receive them..now I'm not sure why and i have read countless posts and how-tos but still can't understand at all. Here are my settings that are working with my phone right now.