This isn't advanced math, but it does require a level of skill that not everyone has. I haven't had any issues other than seeing those tiny screws under the screen inside the iPad itself. All the tools were there, took me about 45 minutes and I'm sure I can do it again. The product instructions were detailed and correct and I liked that they have everything you need except for a hair dryer. Yes, the dryer is strong enough to handle this task, a hair dryer would be overkill.
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