Hey guys I have some problems win my SMS. It works when I send a message but when I try to reply after someone texts me, I get an error saying that please enter a valid 10 digit number. I use my contacts to text my friends and everytime I try to reply back, I get an error. I even tried typing the phone number too with 1(zip) xxx-xxxx. I still get the same error when I reply after they text me. What am I doing wrong or why isn't it working?