Updating software on iphone 3
Updating your i Phone to the latest version of i OS software ensures you have access to all of the latest features and security upgrades.You can update your i Phone's software on the device itself or by connecting it to i Tunes on your computer.If you see an error message while trying to update your device wirelessly, learn what to do.If you need more space for a wireless update, you can update using i Tunes or delete content manually from your device.Note: Apple's updater is likely to suggest additional software that you can download (such as the Safari browser); none of this is necessary.You can download it if you like, but you don't need it to update i Tunes.Launch i Tunes on your computer, select your i Phone on the list of devices and click the "Summary" tab.
To update the i Phone's software using i Tunes, first connect the phone to i Tunes using the USB cable that came with the i Phone.
Back up important data you want to keep before proceeding.
If you don't have unlimited data transfer on your i Phone, connect to a Wi-Fi network before downloading the software updates.
Select your i OS hardware to get a complete list of i OS updates for that device: That’s all there is to it.
This is often a more reliable way to get an i OS update immediately, sometimes i Tunes will time out during the download when an i OS update has just been released, this is probably due to server overload.