Got the LG G3 the summer, worked fine for about a month and than 6-7 weeks ago it would just stop sending and receiving message, went to the store and they said just restart or power down and take out sim and put it back it. I have bin doing that since than and it keeps increasing in amount of times I have to do it now. Also since than I've had texts go missing and people say I didn't reply back when I have a message on my phone showing I have. basically just wondering if this could be cause of the stagefright thing or if my phone might be defective. Any help would be great.