Thanks for your reply Andy. I received the NVR52A16-4kS2 in earlier 2018 & it originally came with [3.215.0000000.2, Build Date: 2017-10-30].
In 2021, i successfully updated to my first version 4 with [DH_NVR5XXX-4KS2_MultiLang_V4.001.0000003.2.R.201010]. This worked fine and did not have the...