I am trying to update my 3rd generation iPod touch to iOS 5. I have the latest version of iTunes. However, whenever I click “Check for Update,” I get the message, “This version of the iPod software (4.2.1) is the current version.” I restored the iPod and restarted the iPod several times—nothing. Any ideas?
First, be sure that what you have in you hand is really a 3rd generation iPod touch. Look on the back of the iPod. If, in the tiny text near the bottom, you see A1288, you have a 2nd generation iPod touch. (Also, if that device holds only 8GB of storage, it’s a 2nd-gen touch.) If the model number is A1318 then it is indeed a 3rd generation iPod touch.
If iTunes won’t cooperate, you can download the update directly from Apple. You can find iOS 5 updates by clicking the following links (these are direct download links):