Every time I wake up my phone a message pops up in the lock screen saying "Sorry, the SIM card is not supported (Emergency calls only)" "Please contact your service provider". This just started happening and I do have the GB update. But this seems to be a glitch or something since my phone works fine. I can get on 4g and make and receive calls no problem. So there really doesn't seem to be a problem (besides the error message) but has this happened to anyone else?