Wie finde ich NVR-Versionsinformationen?

I need a firmware for my DVR, it turns on and freezes.
System V4.03.R11.C6380208.12201.040000.0000000
Serial Number c3f9e9858f709e03

I have system V4.02.R11.061B0203.12001.030000.00000
Device Info: 00009.00000.0000000000
Build date 13-04-2018 13:43:22
SerialNo 40ae6cc1efe88a85

I need to update the system. I can´t configure anymore. It´s always reestarting when I try to configure the channels.

Я хочу обновить techage a1004n ,дигитал видео рекордер :V4.02.R11.G3731191.10001.231900.00000 дата сборки 27.04.2018 г

Hi, I have a Techage H.256 1080P PoE NVR bought from Aliexpress. The NVR cannot boot up with only System Initializing and keep reboot. I cannot see the System version firmware since cannot boot up. The motherboard is HI3536D_V120_NVR040816 2017/12/15. Can I have the firmware for the NVR?

Здравствуй, хочу обновить прошивку, серийный номер 8693ea92b1f19377. V4.03.R11.H7200208.12201.040000.00000