required beforehand: a prerequisite fund of knowledge. something prerequisite: A visa is still a prerequisite for travel in many countries.
This can get a little pricey -- an iPhone 6 screen repair kit costs about $150 -- but it is cheaper than buying a new phone altogether. Of course, not all of us have the skills or time to fix our own phone screens.
Screen repairs cost $109 for an iPhone 6 and $129 for the iPhone 6 Plus. If the Apple store near you has the parts, it will repair your phone. If it doesn't, it may replace it. There is a slim chance it may be sent out for repair. AT&T will not be involved in the repair nor will it be notified.