Ok so my SD card reader on my laptop broke and I need to update my CFW. Is there a way to do this with FTP?
Ok thank youYes you can use FTP. Download ftpd.nro from Releases · mtheall/ftpd · GitHub
Another option is to use Hekate to connect with USB to your computer. The advantage of that is that neither HOS or Atmosphere will be running so you don't risk that some files are open and/or locked.

There are also homebrew applications that can update your CFW for you such as the AIO Switch Updater.Ok so my SD card reader on my laptop broke and I need to update my CFW. Is there a way to do this with FTP?