Skip to content

Firmware

Customer_NVR4XXX-WT_MultiLang_DH_V4.005.1EX2000.0.R.241212.zip

Dahua firmware released Mar 30, 2025. Encrypted firmware.

Released
Mar 30, 2025
Version
V4.005.1EX2000.0.R
Size
757.5 MB
Hardware
Encrypted firmware

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5
0dc4e03b5cabfea2534faa7c099c9e59
SHA-256
c215a2d43404876c7dd5ca3335da9e1f28b73d63fa64934efeb377b766868a5f
Changelog
Release notes

Where it's published

Compatible hardware

This firmware is encrypted (the format Dahua uses for NVR4/NVR5 EI and XI builds), so its contents, including its list of supported hardware, can't be read. Use the model names the vendors list for it instead.

Technical details

Read from inside the firmware (bundle of several firmwares). This file bundles 7 firmware images.

algorithm-x.squashfs.img

SoC
HiSilicon SS626V100
Architecture
arm
Image dates
Dec 12, 2024
Security
Not signed, not encrypted
Flash layout: 1 partition, 1 written by this firmware

From the image headers (only partitions this firmware writes).

PartitionStartEndSizeImageFilesystemBuilt
algorithm0x200000000xc00000002.5 GBalgorithm-x.squashfs.imgext42024-12-12

algorithm.img

SoC
HiSilicon SS626V100
Architecture
arm
Image dates
Dec 12, 2024
Security
Not signed, not encrypted
Flash layout: 1 partition, 1 written by this firmware

From the image headers (only partitions this firmware writes).

PartitionStartEndSizeImageFilesystemBuilt
algorithm0x200000000xc00000002.5 GBalgorithm.img—2024-12-12

custom-x.squashfs.img

SoC
HiSilicon SS626V100
Architecture
arm
Image dates
Dec 12, 2024
Security
Not signed
Flash layout: 1 partition, 1 written by this firmware

From the image headers (only partitions this firmware writes).

PartitionStartEndSizeImageFilesystemBuilt
custom0xe7400000xe9400002.0 MBcustom-x.squashfs.imgsquashfs2024-12-12

logo-x.squashfs.img

SoC
HiSilicon SS626V100
Architecture
arm
Image dates
Dec 12, 2024
Security
Not signed, encrypted
Flash layout: 1 partition, 1 written by this firmware

From the image headers (only partitions this firmware writes).

PartitionStartEndSizeImageFilesystemBuilt
logo0xfd400000xfe00000768.0 KBlogo-x.squashfs.imgsquashfs2024-12-12

mcu.bin.img

SoC
HiSilicon SS626V100
Architecture
arm
Image dates
Dec 12, 2024
Security
Not signed
Flash layout: 1 partition, 1 written by this firmware

From the image headers (only partitions this firmware writes).

PartitionStartEndSizeImageFilesystemBuilt
mcu0x00x3000003.0 MBmcu.bin.img—2024-12-12

u-boot.bin.img

SoC
HiSilicon SS626V100
Architecture
arm
Image dates
Dec 12, 2024
Security
Not signed
Flash layout: 1 partition, 1 written by this firmware

From the image headers (only partitions this firmware writes).

PartitionStartEndSizeImageFilesystemBuilt
u-boot0x00xa8000010.5 MBu-boot.bin.img—2024-12-12

web-x.squashfs.img

SoC
HiSilicon SS626V100
Architecture
arm
Image dates
Dec 12, 2024
Security
Not signed, encrypted
Flash layout: 1 partition, 1 written by this firmware

From the image headers (only partitions this firmware writes).

PartitionStartEndSizeImageFilesystemBuilt
web0xe9400000xfd4000020.0 MBweb-x.squashfs.imgsquashfs2024-12-12