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.
But the deductible for replacing a shattered screen has gotten much cheaper. Now, you'll only have to pay $29 if a broken display is the lone problem with your iPhone. Together, that adds up to $158 if you need one screen repair, or $187 if you need a second.