v5.2.5_141201

Hi all, I did a search, but can't seem to find a link do download a hikvision firmware v5.2.5_141201. My issue is I have "four" DS-2CD2132-I 4MM and tried to upgrade all of their firmwares to V5.3.0 build 150513 via my Hikvision NVR and now 2 are good, but 1 doesn't connect and work - 1 still...