IMPORTANT: The firmware flash upgrade actually
starts when the FTP connexion is CLOSED.
Remember to let the eWON reboot about 30 seconds after closing
the FTP session. DO NOT REMOVE POWER during that time.
WARNING: Upgrade procedure
takes longer when migrating from 3 to 4, please
review the upgrade procedure in the eWON User Guide
Please don't forget to backup
your eWON configuration files if your eWON is
running a 3.x version, because all the eWON
files are erased when upgrading from ver.
3 to ver. 4.
Documentation
