I bought five 5231's and one 5831 camera Nov 2018 which all have the same firmware ... V2.622.0000000.31R build 2018-08-13. The strange thing is I see Dahua website shows older firmware on their product page for these two cameras ... how do I have newer firmware than the site and do I have the latest?
V2.622.0000000.18.R.20171110 for 5231 ... IPC-HDW5231R-ZE
V2.622.0000000.18.R.20171110 for 5831 ... IPC-HDW5831R-ZE
V2.622.0000000.18.R.20171110 for 5231 ... IPC-HDW5231R-ZE
V2.622.0000000.18.R.20171110 for 5831 ... IPC-HDW5831R-ZE