1. First, connect the iPhone to the computer and trust this computer, as shown in the figure below.

2. Then open XY Apple Assistant, open XY Apple Assistant, then open my device, and click.

3. Click Import to Mobile Phone. Here are two options for you to choose, import a folder or import a file, either one.

4. Then find the e-book to import, select it, and click Open.

5. At this point, as shown in the figure below, the import is successful.