Irrefutably, when the Internet sweeps the world, e-book that comes into being promotes greatly the development of online publishing, which has a far-reaching influence upon print media and changes the reading custom of people. To meet changes in user requirements, both Android and Apple develop the built-in e-book app. But you know, there is an eternally immutable theory that the emergence of new things will always pose new problems. In the recent past, the problem of iBooks not working on iOS devices is reported on a number of occasions. Thus, this article is written to have the issue solved with 5 solutions.