Firmware
DH_NVR4x-4KS3_MultiLang_V4.001.0000000.1.R.231025.zip
CCTV App firmware released Oct 25, 2023. Encrypted firmware.
- Released
- Oct 25, 2023
- Version
- V4.001.0000000.1.R
- Size
- 151.3 MB
- Hardware
- Encrypted firmware
Download
Permanent copy on the Internet Archive (item page)
- MD5
7248acd8360300a77ab6f10718911396- SHA-256
9e86c3a1b0622723129f79354b470fd2568b4106b011d9f9c8ae4d72dc00492b
Where it's published
Recovered from the Wayback Machine
CCTV App
Wayback Machine (files.cctvapp.net)
Wayback copyCaptured Feb 3, 2026 from
https://files.cctvapp.net/Firmware/Dahua/Network-Recoder/NVR/NVR-S3/NVR4x-4KS3/DH_NVR4x-4KS3_MultiLang_V4.001.0000000.1.R.231025.zip- Recovered from the Wayback Machine (captured 2026-02-03)
V4.001.0000000.1.R · Listed date Oct 25, 2023
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
- Oct 25, 2023
- Security
- Not signed, encrypted
Flash layout: 1 partition, 1 written by this firmware
From the image headers (only partitions this firmware writes).
| Partition | Start | End | Size | Image | Filesystem | Built |
|---|---|---|---|---|---|---|
| algorithm | 0xa4a80000 | 0xa6f80000 | 37.0 MB | algorithm-x.squashfs.img | squashfs | 2023-10-25 |
custom-x.squashfs.img
- SoC
- Novatek NT98632
- Architecture
- arm
- Image dates
- Oct 25, 2023
- Security
- Not signed
Flash layout: 1 partition, 1 written by this firmware
From the image headers (only partitions this firmware writes).
| Partition | Start | End | Size | Image | Filesystem | Built |
|---|---|---|---|---|---|---|
| custom | 0xa3780000 | 0xa3980000 | 2.0 MB | custom-x.squashfs.img | squashfs | 2023-10-25 |
logo-x.squashfs.img
- SoC
- Novatek NT98632
- Architecture
- arm
- Image dates
- Oct 25, 2023
- Security
- Not signed, encrypted
Flash layout: 1 partition, 1 written by this firmware
From the image headers (only partitions this firmware writes).
| Partition | Start | End | Size | Image | Filesystem | Built |
|---|---|---|---|---|---|---|
| logo | 0xa4880000 | 0xa4a80000 | 2.0 MB | logo-x.squashfs.img | squashfs | 2023-10-25 |
u-boot.bin.img
- SoC
- Novatek: one of NT98331, NT98632
- Architecture
- arm
- Bootloader
- U-Boot 2019.04-svn7126
- Image dates
- Oct 25, 2023
- Security
- Not signed
Flash layout: 1 partition, 1 written by this firmware
From the image headers (only partitions this firmware writes).
| Partition | Start | End | Size | Image | Filesystem | Built |
|---|---|---|---|---|---|---|
| u-boot | 0xa0080000 | 0xa0280000 | 2.0 MB | u-boot.bin.img | — | 2023-10-25 |
web-x.squashfs.img
- SoC
- Novatek NT98632
- Architecture
- arm
- Image dates
- Oct 25, 2023
- Security
- Not signed, encrypted
Flash layout: 1 partition, 1 written by this firmware
From the image headers (only partitions this firmware writes).
| Partition | Start | End | Size | Image | Filesystem | Built |
|---|---|---|---|---|---|---|
| web | 0xa3980000 | 0xa4880000 | 15.0 MB | web-x.squashfs.img | squashfs | 2023-10-25 |