Around the same time, the release of i Phone 4 and its subsequent antenna problems made Apple focus on unsuccessfully attempting to patch the issues with software updates.
i OS 4 was introduced at the Apple Worldwide Developers Conference keynote address on June 7, 2010.
Your data, apps, contacts and everything else should be restored.
That’s pretty much it, you’re good to go on i OS 4!
Apple hasn't responded to the allegations, but wrote in a reply to another unsatisfied customer in August that updates were "coming soon".