IMPORTANT: Upgrade Bootloader (for eWON previous than 0648-xxxx-xx)

Since firmware version 5.2, the Bootloader of the eWON must be greater than 2.0.
Every eWON produced with a serial number greater or equal to 0648-xxxx-xx has already this bootloader 2.0.

To upgrade to 5.2 an eWON produced before 0648-xxxx-xx, the bootloader must be upgraded.
 1.  Your eWON MUST be in 5.1 firmware version ( firmwares 5.1s2 availables here )
 2.  Download the bootldr.bin file in the eWON by FTP.
There is no need to reboot after the bootloader upgrade.

The eWON data and config are NOT affected by this upgrade.
Important: You should not remove the power during a bootldr upgrade.

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.