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Firmware

dh_nvr2x-s2_eng_p_v3.205.0000000.0.d.180606.bin

Viatec and Cifra firmware. May work with 2 devices, including N6.

Version
V3.205.0000000.0.d.180606
Size
13.4 MB
Hardware
2 devices

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5
755912aa5b9a5eb48052c27420c0ae08
SHA-256
688756c3f113c88f3869d242711f71fd97cc9bea4ed002751301dbce1b9e045a

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: the installer script's board checks, 3 IDs

Technical details

Read from inside the firmware (dahua package (zip variant)).

SoC
HiSilicon: one of Hi3520DV300, Hi3521A, Hi3531A
Architecture
arm
Bootloader
U-Boot 2010.06-svn2926
Flash
16.0 MB
Image dates
Jun 6, 2018
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—2018-06-06
rootfs0xa00600000xa0ca000012.3 MBromfs-x.cramfs.imgsquashfs2018-06-06
Log0xa0ca00000xa0da00001.0 MBnot written——
web0xa0da00000xa0f400001.6 MBweb-x.cramfs.imgsquashfs2018-06-06
custom0xa0f400000xa0f60000128.0 KBcustom-x.cramfs.imgcramfs2018-06-06
logo0xa0f600000xa0f80000128.0 KBlogo-x.cramfs.imgcramfs2018-06-06
config0xa0f800000xa0fe0000384.0 KBnot written——
backup0xa0fe00000xa1000000128.0 KBnot written——

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