Apple designed iPhone to be incredibly simple to use. Nevertheless, there may be times that you could use a little help.
iPhone Support
The iPhone Support page contains a wealth of information to help you learn more about iPhone capabilities, including the iPhone User Guide, technical support articles, troubleshooting tips, and customer discussion forums.
iPhone comes with 90 days of technical support. In addition, your iPhone, its rechargeable battery, and all included accessories are covered against defects for a full year from the purchase date by a limited hardware warranty. Learn more about your Hardware Warranty.