My S III stopped working except for the WiFi. Apart from the battery issues and heating it started not sending or receiving texts or calls, then was OK for day or two, then happened again. I could not receive any calls or texts. While at home on WiFi I could access and comment on FB and Instagram, or anything else I wanted to do on WiFi. Tried twice putting phone back to factory settings, not joy. My husband has S III too, and his works great, he's had it for two years and not had any issues. He tried his battery and Sim card in my phone, still would not work. Any help would be great...Thanks