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Firmware

DH_NVR2X-S2_Eng_P_V3.205.0000000.0.R.171013.rar

SNR and Dahua firmware released Oct 13, 2017. May work with 2 devices, including N6.

Released
Oct 13, 2017
Version
V3.205.0000000.0.R
Size
13.4 MB
Hardware
2 devices

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5
455fdb2bcceae213e28ced9d4ed5e0e4
SHA-256
40bc9932ddbe8081da264cfdb8b71c4a40d2ba796879bdebd5516c5f82923e63

Where it's published

Compatible hardware

Hardware IDs this firmware's installer accepts (2 devices). Names with placeholders such as x or XXX are board families.

Where these IDs come from
  • Install.lua in DH_NVR2X-S2_Eng_P_V3.205.0000000.0.R.171013.bin: the installer script's board checks, 3 IDs

Technical details

Read from inside the firmware (rar archive).

SoC
HiSilicon: one of Hi3520DV300, Hi3521A, Hi3531A
Architecture
arm
Bootloader
U-Boot 2010.06-svn2926
Flash
16.0 MB
Image dates
Oct 13, 2017
Security
Signed, not encrypted
Flash layout: 8 partitions, 5 written by this firmware

From the recorder's Install.lua partition table.

PartitionStartEndSizeImageFilesystemBuilt
boot0xa00000000xa0050000320.0 KBu-boot.bin.img—2017-10-13
rootfs0xa00600000xa0ca000012.3 MBromfs-x.cramfs.imgsquashfs2017-10-13
Log0xa0ca00000xa0da00001.0 MBnot written——
web0xa0da00000xa0f400001.6 MBweb-x.cramfs.imgsquashfs2017-10-13
custom0xa0f400000xa0f60000128.0 KBcustom-x.cramfs.imgcramfs2017-10-13
logo0xa0f600000xa0f80000128.0 KBlogo-x.cramfs.imgcramfs2017-10-13
config0xa0f800000xa0fe0000384.0 KBnot written——
backup0xa0fe00000xa1000000128.0 KBnot written——

Other files for much of the same hardware, from any vendor.