Is there a way to prevent OS upgrades on an iOS device, such that the user is unable to remove the restriction?
We will be loaning iPhones or iPads to people, and don't want them making ANY changes to the devices. I see that parental restrictions will let me prevent users from adding or deleting apps, but there isn't an option for OS upgrades.
If I tell iTunes to stop doing updates, and then prevent the user from accessing the iTunes store, will that do it?