I have qlink as well, it has been a year or so I believe. I brought my own phone with them and it's been good for the most part, the problem I'm having is, if I'm not connected to wifi and I'm using data on the phone even if I have plenty of data to use, about every hour or so it will completely stop loading whatever I am doing and in the top left corner of my screen a ? With the service bars shows up, when I check notifications it says sign in to service which at that point I can't. Then between 5 and 10 minutes later it's back to normal again until the next hour. I don't understand why it does this and it is driving me crazy!