Hi,
i have a fisheye DS-2CD6362F-I with serial I20150728CCWR532848375 and FW 5.0.9, build 141009.
Pretty much the version as avail on the Hik Download-Portal: DOWNLOAD PORTALdated 30.05.2016.
When trying to upgrade to any of the higher FWs, i get an Upgrade failed! - Error. This is the same...