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Firmware

1_NVR4x-4KS2L_DH_MultiLang_IP-Speaker_V4.002.1BT0000.0.T.230725.bin

Dahua firmware released Jul 25, 2023. May work with 1 device.

Released
Jul 25, 2023
Version
V4.002.1BT0000.0.T
Size
68.0 MB
Hardware
1 device

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5
e7285eba82b3afeb4d6a7f51a94630fc
SHA-256
b6e1b17acde1873d88a03c45614bc81e668dab1659e472a08b0c9652b7bccbfd

Where it's published

Compatible hardware

Hardware IDs this firmware's installer accepts (1 device). Names with placeholders such as x or XXX are board families.

Where these IDs come from
  • Install.lua: the installer script's board checks, 2 IDs

Technical details

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

Architecture
arm
Flash
128.0 MB
Image dates
Jul 25, 2023
Security
Signed, upgrade security version 3.00
Flash layout: 11 partitions, 7 written by this firmware

From the recorder's Install.lua partition table.

PartitionStartEndSizeImageFilesystemBuilt
param0x00x1400001.3 MBparam.bin.img—2023-07-25
boot0x1400000x5400004.0 MBu-boot.bin.img—2023-07-25
env0x5400000x7400002.0 MBnot written——
romfs0x7400000x378000048.3 MBromfs-x.squashfs.imgsquashfs2023-07-25
custom0x37800000x39800002.0 MBcustom-x.squashfs.imgsquashfs2023-07-25
web0x39800000x488000015.0 MBminios-x.squashfs.imgsquashfs2023-07-25
logo0x48800000x4a800002.0 MBlogo-x.squashfs.imgsquashfs2023-07-25
dgs0x4a800000x4b00000512.0 KBnot written——
ext_usr0x4b000000x740000041.0 MBeusr-x.squashfs.imgsquashfs2023-07-25
config_fw0x74000000x76000002.0 MBnot written——
config0x76000000x800000010.0 MBnot written——

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