Signal / Reception Why does my phone call work but I can't use the data on the device? Why does my phone say no sim or SOS only? Why can't I turn on wifi/bluetooth on my phone? Why is the wifi/bluetooth signal weak or there is no signal? What's your problem? Don't see your problem here, contact us! Diagnosing a different problem? Screen / Display Power / Battery / Charging Sound Camera Buttons Housing / Frame Signal / Reception Water Damage