Thank you all who replied. I have AT&T and unlimited Data plan. An E randomly started showing up- Perhaps the same day the screen cracked.... 4-5 months After purchase. ( Also same day as my dad's funeral- weird) I had an iphone 3 & gave it to my sister.... Should I just wait for the...

Ok- what are the proper settings for Internet use... Not Wi-Fi.... Phone is 6 months old, cracked screen & now settings refuse to connect to anything other than Wi-Fi. How long does a typical warranty last? Thank You AppleGods. Terri