Below we’ve collected links from apple.com to help troubleshoot the most common iPhone problems.Visit Apple’s iPhone support page for more troubleshooting resources or consult your user guide.
iPhone 3G user guide
iPhone 3GS user guide
iPhone 4 user guide
iPhone troubleshooting assistant
No data connection
Unable to access the Internet
Unable to make phone calls
How to set up email
Unable to send mail
Unable to receive mail
iPhone not appearing in iTunes
Learn how to solve more common iPhone issues.
Backing up and restoring your iPhone
To protect your data, be sure to back up your iPhone regularly. Learn more and find instructions on backing up and restoring your iPhone.
Keeping your software updated
It's important to keep your software up to date as new features and enhancements come out from time to time. Find out about the latest update.
How to: Backing up, updating and restoring your iPhone software
Solution: Alert messages on iPhone during update or restore
Troubleshooting iPhone hardware
If you have issues with your iPhone, try these tips first.
Find out what to do if you're having trouble getting iTunes to recognize your iPhone on your computer.
Power/Battery
Battery doesn't last long
Battery doesn't charge using the iPhone charger
iPhone will not turn on
More...
Display
Not responding to touch
No backlight, too dark
More...
Other helpful links
Last Updated:11/04/2010