XG Series User's Guide
6.4.2
Updating the Firmware
You can perform firmware update by transferring the firmware from an FTP client or a compact flash card.
"6.3.1 Updating Firmware Using FTP"
Reference
"6.3.3 Updating Firmware Using USB memory" (pg.572)
(pg.568),
"6.3.2 Updating Firmware Using CompactFlash card"
576
Actions When Firmware Update Failes (Backup Firm Function)
Chapter 6 Managing the Device
(pg.570),