makes no sense.
if you can update to this firmware, you have a
G5 version. maybe they label their firmware versions different in US , but in EU this firmware was only released for G5
there are many glitches/bugs in the new (C) version...
buy new hikvision cameras should be avoided at the moment ...
seems that they put another CPU in it which is less powerfull, so many functions does not work at the same time ... maybe there will be a firmware update to get better functionallity