Latest version of firmware for Nest OLT as on July 2018 is version 6.10
Verion 6.04, Filename: V5812G.6.04-2530-01.x
Verion 6.09, Filename: V5812G.6.09_2551-01.x
‘show flash’ will give the existing firmware files in memory.
default-os is os1
Up-gradation steps:
1) copy ftp os download os1
(give file name & ftp details)
1) reload