Q: How do I update IPOD touch 4 software from iOS 5.1.1 TO iOS 6 ?

iOS 5.1.1 is the latest iOS for that device. See this support document to see if any compatible app is available for your device. If not, there is nothing you can so. It is the developers that determine what apps are available. Install the latest compatible version of an app on an earlier version of iOS or OS X - Apple Support

See the chart below to determine whether you can upgrade your device and what you can upgrade to. If you do not have a Software Update option present on your iDevice, then you are trying to upgrade to iOS 5 or higher. You will have to connect your device to your computer and open iTunes in order to upgrade.

IPhone, iPod Touch, and iPad iOS Compatibility Chart

     Device                                       iOS Verson

iPhone 1                                      iOS 3.1.3

iPhone 3G                                   iOS 4.2.1

iPhone 3GS                                 iOS 6.1.x

iPhone 4                                      iOS 7.1.x

iPhone 4S                                    iOS 8.x.x

iPhone 5                                      iOS 8.x.x

iPhone 5c                                     iOS 8.x.x

iPhone 5s                                     iOS 8.x.x

-------------------------------------------------------

iPod Touch 1                               iOS 3.1.3

iPod Touch 2                               iOS 4.2.1

iPod Touch 3                               iOS 5.1.1

iPod Touch 4                               iOS 6.1.x

iPod Touch 5                               iOS 8.x.x

-------------------------------------------------------

iPad 1                                          iOS 5.1.1

iPad 2                                          iOS 8.x.x

iPad 3                                          iOS 8.x.x

iPad 4                                          iOS 8.x.x

iPad Mini & Mini Retina                iOS 8.x.x

iPad Air                                        iOS 8.x.x

=====================================

Select the method most appropriate for your situation.

Upgrading iOS

   1. How to update your iPhone, iPad, or iPod Touch

   2. iPhone Support

   3. iPod Touch Support

   4. iPad Support

     a. Updating Your iOS from iOS 5

          Tap Settings > General > Software Update

     If an update is available there will be an active Update button. If you are current,

     then you will see a gray screen with a message saying your are up to date.

     b. If you are still using iOS 4 — Updating your device to iOS 5 or later.

     c. Resolving update problems

        1. iOS - Unable to update or restore

        2. iOS- Resolving update and restore alert messages

I was hoping you would post. If this a user tip that you created? If so, I wanted to bookmark it so I can use it in the future and credit you with it.

Chris,

Just copy it or bookmark it, whichever is more convenient. Feel free to make your own modifications. A small and simple credit is appreciated but not necessary. You've helped me an awful lot and were always considerate in doing so. Happy to return the favor. Happy New Year!!!

Then you don't have an iPod Touch 4.

Connect your iPod to iTunes and wait for the device icon in the corner to pop-up, then click it and update

If your iPod does not have cameras it is a 3G.

Also see:

Can't connect to the iTunes Store