The AT&T website has a how-to-center with tutorials and user manuals for AT&T-supported devices. If a device was put on the market beyond the past four years, it cannot be found on the AT&T website.
From the AT&T website main page, click on the Support tab. From the Support tab, select the Device How-to Center. A pop-up menu displays the option to select the device type or model. A new page then opens up giving users a selection of device video tutorials, interactive tutorials and various user manuals for the selected product. The AT&T website also offers troubleshooting and activation help.