TS2802: iPhone: Hardware troubleshootingLearn about iPhone: Hardware troubleshooting
Currently Being ModeratedMar 28, 2013 3:30 AM (in response to Rochelle2008)
Basic troubleshooting from the Users Guide is reset, restart, restore (first from backup then as new). Try each of these in order until the issue is resolved.
If this does not resolve the issue, take the device to Apple for evaluation and possible replacement.