Ursprünglicher Beitrag von: Alex Soria ,
Did you open your phone at all? Or did this happen out of nowhere? If you opened it recently, one of the antennae that @alwayslearning mentioned may have not been reconnected properly. It's also possible that your antenna just failed on its own, in which case I'd recommend following [guide|29806|this guide] to replace [product|IF269-013|the antenna] which is only $8. You can also try just reseating your antenna without swapping out a new one and see if that helps. Please let us know your results!