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Firmware

DH_NVR4x-4KS3_MultiLang_V4.006.0000000.0.R.250402.zip

Dahua firmware released Apr 2, 2025. Encrypted firmware.

Released
Apr 2, 2025
Version
V4.006.0000000.0.R
Size
147.8 MB
Hardware
Encrypted firmware

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5
d19c82d7a3c12ba917a17e5d1ad33c76
SHA-256
2893a3d14a4da2bc7607c78b47823b0e8363e41496618a8517a7c7010c2aee45

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 5 firmware images.

algorithm-x.squashfs.img

SoC
Novatek NT98632
Architecture
arm
Image dates
Apr 2, 2025
Security
Not signed, encrypted
Flash layout: 1 partition, 1 written by this firmware

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

PartitionStartEndSizeImageFilesystemBuilt
algorithm0xa4a800000xa6f8000037.0 MBalgorithm-x.squashfs.imgsquashfs2025-04-02

custom-x.squashfs.img

SoC
Novatek NT98632
Architecture
arm
Image dates
Apr 2, 2025
Security
Not signed
Flash layout: 1 partition, 1 written by this firmware

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

PartitionStartEndSizeImageFilesystemBuilt
custom0xa37800000xa39800002.0 MBcustom-x.squashfs.imgsquashfs2025-04-02

logo-x.squashfs.img

SoC
Novatek NT98632
Architecture
arm
Image dates
Apr 2, 2025
Security
Not signed, encrypted
Flash layout: 1 partition, 1 written by this firmware

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

PartitionStartEndSizeImageFilesystemBuilt
logo0xa48800000xa4a800002.0 MBlogo-x.squashfs.imgsquashfs2025-04-02

u-boot.bin.img

SoC
Novatek: one of NT98331, NT98632
Architecture
arm
Bootloader
U-Boot 2019.04-svn9179
Image dates
Apr 2, 2025
Security
Not signed
Flash layout: 1 partition, 1 written by this firmware

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

PartitionStartEndSizeImageFilesystemBuilt
u-boot0xa00800000xa02800002.0 MBu-boot.bin.img—2025-04-02

web-x.squashfs.img

SoC
Novatek NT98632
Architecture
arm
Image dates
Apr 2, 2025
Security
Not signed, encrypted
Flash layout: 1 partition, 1 written by this firmware

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

PartitionStartEndSizeImageFilesystemBuilt
web0xa39800000xa488000015.0 MBweb-x.squashfs.imgsquashfs2025-04-02