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How to upgrade to iOS 4

CNET Senior Editor Donald Bell put together this quick tutorial for upgrading to Apple's iOS 4 on the iPhone or iPod Touch.

This is a guest post from CNET News Senior Editor Donald Bell, who covers portable entertainment from tablets to MP3 players. He's also a musician, a hardware hacker, and a collector of vintage audio gadgetry. He appears every week on CNET's Crave video podcast.

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Bell put together this easy-to-follow gallery tutorial for those who may be new to updating firmware. The free iOS 4 upgrade is available today for both iPhone and iPod Touch users, but does not include first-generation models.

From the gallery:

Step 1: Upgrade iTunes

To upgrade your iPhone or iPod Touch to Apple's iOS 4 firmware, make sure you're running the latest version of iTunes on your computer. Here's a link to iTunes 9.2 from CNET's Download.com. After installation, you may need to restart your computer.

Step 2: Connect your device

Once you've made sure iTunes is up to date, connect your iPhone or iPod Touch to your computer using the included USB cable. If iTunes doesn't launch automatically, you'll need to launch it manually.

Step 3: Select device

Once iTunes is open, and your device is connected, select your device in the iTunes sidebar so that the summary page (shown here) is visible. Take notice of the button for Check for Update but don't click it quite yet.

Step 4: Create back up

Just to be safe, make a backup of your settings prior to upgrading the firmware. To do this, right-click on the device icon in the iTunes sidebar and select Back Up. It should only take a minute to create a backup, and it's time well-spent. If anything goes awry during your iOS update, you can use this same menu to select the Restore from Backup option.

Step 5: Check for updates

Finally, click the Check for Update button from the device summary page. If your iPhone or iPod Touch is compatible with iOS 4, iTunes will tell you that an update is available for download and will guide you through the installation.

Also see: "Bytes and pieces from an iOS walkthrough" (ZDNet)
3 comments
tjrobill
tjrobill

This upgrade won't change much for phones that aren't 3GS or 4G. I have a 3G and don't see any difference from OS3.

CorporateLackie
CorporateLackie

I'm still running iTunes 9.0.x.x as the 9.1 "upgrade" broke sync-ing with Outlook. I understand that V9.2 fixed that issue for most people (after 3 or 4 weeks of screwed up calendars). Can anyone provide feedback on Outlook sync. function using 9.2 + iOS4? Thanks!

CorporateLackie
CorporateLackie

A buddy of mine has the 3G and was most happy with the threaded e-mail and unified inbox otherwise ... not so much...