How to Easily Upgrade iPhone OS
by Hiroshi on September 18th, 2009
Here is a quick way to upgrade iPhone OS. You can update your iPhone 3.0 firmware via iTunes 8.1 by following these steps:
- Connect your iPhone to your computer.
- Open iTunes. When iTunes opens, select your iPhone under Devices in the Source List.
- Click Check for Updates in iPhone Summary pane.
- Click Download and Install. Do not disconnect your iPhone until the update has finished.