Pokemon X- Update 1.5 3ds -world- Cia -region F...

This usually indicates a corrupted file or insufficient SD card space. Redownload the CIA or free up space before retrying.

Released on April 22, 2015, this version includes all previous patches (1.1 through 1.4). Pokemon X- Update 1.5 3DS -World- CIA -Region F...

: Specifies the target hardware architecture (Nintendo 3DS family). This usually indicates a corrupted file or insufficient

: Select Install CIA... from the dropdown options. Pokemon X- Update 1.5 3DS -World- CIA -Region F...

If you want, I can:

4. Best Practices for Managing 3DS Updates via Custom Firmware