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.
1 Depending on the manufacturer of the tablet, the cost of tablet screen repair can range anywhere from $100 to as much as $300.2  For example, the Apple iPad can cost upwards of $500 to have repaired at the official Apple Store. 3  A cracked screen is going to be cheaper to fix than a full replacement. If the entire screen has to be replaced, it can cost $189. 2  According to this MoneyNing.com article, the Apple Store quoted $599 for a base rate, while a third-party provider had a range of $150 to $200.