Okay, So I'm EXTREMELY frustrated at this point. Yesterday everything was working fine. I've tried to update my APN settings and trust me, I've spent hours on the internet trying every different one. I've done the whole reboot thing, airplane mode is off, wifi is off to see if it connects to the internet or 4G. Nothing. I am using Straight Talk, former TMobile user. My phone is an LG Optimus L90. Please do not give me apn settings for AT&T as I have already tried this, as well as tmobile apn settings. I've done the whole wap.tracfone apn settings too but to no avail. I can't even place a phone call to talk to Straight Talk about this issue. My phone keeps telling me there is no service, no connectivity (even though my data connection is set to on) Someone please help me