If you have changed your LCD screen and it is not able to update because of this warning "checking for a software update failed because you are not connected to the internet ios " .
You can try all you want but the only chance is to remove the NFC FROM THE ORIGINAL SCREEN and put it on the screen that was replaced.
After that, just install it without any problem.
badwily
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution