Please refer to the following:

1. Take Xiaomi 6X as an example. First, open the mobile phone, find the downloaded mobi ebook in the mobile phone, click Long, then find the "Move" option in the pop-up interface bar, and click.

2. Click to enter the "Phone Memory" folder (some phones will display "sdcard0" and "sdcard 1", and "sdcard0" means to manually return to the machine memory). Note: kindle files are usually in the "phone memory". If you can't find it, you can find it in the memory card folder.

3. Find and click the kindle, as shown below.

4. Click "Paste" to copy the e-book to this folder. Note: E-books cannot be placed in subfolders of the kindle folder.

5. After the file is copied successfully, it will be displayed in the "kindle" root folder, and the import is completed. (Computer transmission method is the same)