I can not reflash the DS-7204HUHI-F1 / N
there was firmware V3.4.80build 161028 multilanguage.
I tried to reflash it with regular tftp but I always got an error Open file [C: \ tftp \ econt_Vision-AV2000] failure
I tried to flash through TTL USB via PUTYY firmware more than 32Mb is not flashed...