Stop ipod from updating
Note that this prevents software update from working completely.
When you click Software Update on your i Pad or i Phone, you'll see "Unable to Check For Update." It's a bit extreme way to prevent software updates, but some users may be determined to keep the latest version.
Apple wants as many people as possible on the latest version of i OS for many reasons: improved performance, security fixes and to block hacks like jailbreaking.
This is less than desirable particularly for those with limited broadband bandwidth, but Apple really wants you to update that i OS device to the latest available version.When you see the i OS Software Update reminder, choose “Later” and then choose “Remind Me Later” – don’t worry, it will remind you later. The best way to stop being nagged about impending i OS updates available is to delete the i OS update from the i Phone, i Pad, or i Pod touch, and then avoid wi-fi.Deleting the available i OS update from the device will stop the update reminder from appearing, but you have to disconnect from wi-fi and avoid wireless networks because the moment your device is unattended and back on wi-fi…But can you stop i OS software update notifications and reminders from constantly popping up on your i Phone or i Pad? This is probably not what you’re wanting to hear, but there isn’t a perfect way to stop i OS software updates from pestering you about an available update.The good news is there are several methods to get i OS update reminders from constantly appearing on your device, each takes a different approach, from postponing the update, to removing it, to giving in and updating, to even blocking the update server. If you take this route, get used to pressing “Later” and “Remind Me Later” repeatedly, as in 24 hours you’ll be asked about it again. And another 24 hours later, you can go through the process yet again, until you either give in or move along with another of the options below.
Some users have reported that i OS re-downloads the update when the i Phone is connected to Wi-Fi If the "Install Now" and "Remind Later" alert re-appears, check in your Storage & i Cloud Usage and delete the update again.