What's up guys/girls... Just got the green Lumia 1520 (att) Always had android devices. Currently using it on straight talk.. Having a bit of a problem with mms tho.. I have data(lte), and SMS working ... Just no mms ... It's quite annoying... But so far I love the device. I was able to sync with my win8 laptop and Xbox one. So is there any dos or donts I should know of... Thanks in advanced