Unable to Check for Update Error while upgrading iOS7 fixed

Fix error whlie iOS7 update Unable to Check for Update. An error occured while checking for a software update. Most of Apple fans have complained that they receive an error "Unable to Check for Update. An error occured while checking for a software update" while try to upgrade their old iOS version to iOS 7 through iPhone or iPad. This iOS7 upgrade error occurs because of DNS error most of times. You can solve this error easily by clearing Wi-Fi DNS address and replace it with specific address. Please watch above video and you will get an clear idea about how to overcome this annoying iOS7 software updat error.