To download and install an iOS 6 upgrade, choose the software update on the device itself. Alternately, connect the device to a computer and upgrade the software through iTunes.Continue Reading
To upgrade a device directly on an iOS device, run through the following steps.
Go into Settings and select Software Update from the General menu.
Tap on the Download and Install option to upgrade the device.
Plug the device into a wall outlet to help it conserve power while the download and install completes.
After the software update is installed, enter the requested information for the Apple ID account information and location services or skip to the next screen.
To upgrade a device through iTunes, run through the following steps.
Make sure iTunes is updated before connecting and upgrading the device.
Connect the device to the computer and select it in the iTunes menu.
Find and click the Check for Updates option in the Summary window.
Select Download if an update appears, and Install to upgrade the device.
Follow any prompts requesting user information.