SwyxPhone firmware v5.1.31 released (kb3153)

The information in this article applies to:

  • SwyxWare v6.00
  • SwyxPhone L540
  • SwyxPhone L520s
  • SwyxWare v5.01
  • SwyxWare v5.00
  • SwyxWare v4.40
  • SwyxPhone L440
  • SwyxPhone L400
  • SwyxPhone L420

[ Information ]


Swyx approved the firmware version v5.1.31 for the SwyxPhone types L400, L420e, L420s, L440, L520s and L540 for usage with SwyxWare.

The implemented display hardware of the LCD based key labels(L520s, L540) has changed and requires an appropriate support by the firmware. Older firmware versions produce together with the new phones empty displays.

Download via public ftp:

  • FTP-server:
  • Login: ftp
  • Password: ftp
  • Directory: fw5_en


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