H.264 IPC Firmware 2017.2.22 507-20XB/601-D20X/405-D20X
DO NOT UPGRADE THIS FILE IF YOUR CAMERA SUPPORTS H.265.
NOTICE: A NEWER FIRMWARE IS AVAILABLE IN 2018.
Please click the file here to download – 20170222
This is the upgraded version of 2017.1.7 firmware which degraded the ONVIF version back to 2.04 in order to be compatible with Synology.
In our principle, we would want to use higher version of ONVIF profile but many users have expressed inconvenience so this is an alternative before Synology made the upgrade on their end.
The firmware upgrade takes place at Device Config->Upgrade (in IE/CMS) with the bin file applied directly.