mtheall has updated the FTP server for the 3DS:

New Supported Commands

MLSD
MLST
SIZE

Other Features

Switch support
Backlight toggle (Start button)
More compatibility with non-compliant clients
Further improvements to overall system stability and other minor adjustments have been made to enhance the user experience

download https://github.com/mtheall/ftbrony

via https://www.nintendomax.com/viewtopic.php?f=132&t=16820