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Firmware

DH_DVR21xx_SpnEng_NP_V3.200.0001.28.R.20170803.bin

BITS firmware released Aug 3, 2017. May work with 4 devices, including DH, OEM_TYPE.

Released
Aug 3, 2017
Version
V3.200.0001.28.R
Size
13.5 MB
Hardware
4 devices

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5
935e34a6f50ad057af7eb182aea0bfb3
SHA-256
8e611add02d07f4b0ba9886511707e41445070ac76b9bb206259625a51492936

Where it's published

Compatible hardware

Hardware IDs this firmware's installer accepts (4 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, 4 IDs

Technical details

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

SoC
HiSilicon: one of Hi3520D, Hi3515A
Architecture
arm
Bootloader
U-Boot 2010.06-svn1575
Flash
16.0 MB
Image dates
Aug 4, 2017
Security
Signed, not encrypted
Flash layout: 7 partitions, 5 written by this firmware

From the recorder's Install.lua partition table.

PartitionStartEndSizeImageFilesystemBuilt
boot0xa00000000xa0040000256.0 KBu-boot.bin.img—2017-08-04
rootfs0xa00600000xa0ce000012.5 MBromfs-x.cramfs.imgsquashfs2017-08-04
web0xa0ce00000xa0e600001.5 MBweb-x.cramfs.imgsquashfs2017-08-04
custom0xa0e600000xa0e80000128.0 KBcustom-x.cramfs.imgcramfs2017-08-04
logo0xa0e800000xa0ec0000256.0 KBlogo-x.cramfs.imgcramfs2017-08-04
config0xa0ec00000xa0f40000512.0 KBnot written——
config10xa0f400000xa1000000768.0 KBnot written——

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