I have the 8x and it was working fine this morning. Was working on my car and felt it restart in my back pocket, which happens every once in a while so I didnt pay it attention. When to use it a little later and its in airplane mode. Going to settings and turning it off actually doesnt turn it off because the icon is still there and i cant make any calls. Restarting didnt work. Let the battery die all the way and it didnt change it. Still in Airplane mode. Any ideas?