We have an iPad that is running iOS 8 and can't see that iOS 8.0.2 is available. This id true from both the settings app and through iTunes. Other iOS 7 and 8 devices on the same network can see the update and have been able to update. We've done a complete "Settings -> General -> Reset -> Erase All Content and Settings" but the reset OS also can't see the update. A restore from iTunes didn't seem to fix the issue either.
We also tried to update the OS from iTunes and are being told that the iPad is up to date.
This device at one point was managed by MobileIron, in case that makes any difference (we suspect it might). From our MobileIron interface, the device is no longer managed and the MobileIron app has been removed from the device.
Best Answer
The way to complete this is to locate a downloadable version of the iOS 8 install file. Redmond Pie has a great blog post with links to each version of the software.
http://www.redmondpie.com/ios-8-beta-download-release-date-features-rumors-and-news-update/
Once you download the version of 8.0 for your iPad version - following this:
Connect ipad to computer Click on iPad - Summary Hold and click on restore. A file dialog window should open, allowing you to manually select the restore media. Navigate to where you downloaded the iOS software to, and select that .ipsw file from the list.
It should overwrite and install the 8.0 version to the iPad.
Regards,
Ed