While using my DNA on ATT HSPA via Straightalk, my data works for around 5 minutes, then it stops working. Rebooting the phone does nothing, however if I switch to Edge it works all day long. I'm running 4.2.2 software 3.06.605.4 .. I thought about maybe doing a update, but the phone checks for an update and stalls out. Please help! I'm having to use a Samsung S3 and its terrible.