Skip to content

Firmware

General_SD-Gauss_MultiLang_PN_Stream3_V3.201.0000007.1.R.260413.bin

EmpireTech and ENS Security firmware released Apr 13, 2026. May work with 38 devices, including CA-HZ2016DB-A, CA-HZ2020DB-A, CA-HZ2023DB-A.

Released
Apr 13, 2026
Version
V3.201.0000007.1.R
Size
91.5 MB
Hardware
38 devices

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5
56d47200271fa02ce336fa83e8f1a15c
SHA-256
7c056e62307b103f0092e4fd62663a9d54597fa7815f16e274dd420f0ff0acbb
Changelog
Release notes

Where it's published

Compatible hardware

Hardware IDs this firmware's installer accepts (38 devices).

Where these IDs come from
  • hwid: the device's own hardware check list, 38 IDs
  • Install: the installer's device list (board families), 1 ID, vendor General (not counted: a more specific list exists)
  • check.img: the device's own hardware check list, 38 IDs
  • hwid in check.bin: the device's own hardware check list, 38 IDs
  • Install in check.bin: the installer's device list (board families), 1 ID, vendor General (not counted: a more specific list exists)
  • check.img in check.bin: the device's own hardware check list, 38 IDs

Technical details

Read from inside the firmware (dahua ptz package). This file bundles 2 firmware images.

Firmware image

SoC
Novatek NT98560
Architecture
arm
OEM build
General
Bootloader
U-Boot 2019.04-svn18131
Image dates
Apr 13, 2026
Security
Signed, encrypted, security baseline V2.4
Language & video
English by default · 23 languages · PAL
Software version
V3.201.0000007.1.R.260413
Supported languages (23)

English, Italian, Spanish, Russian, French, German, Portugal, Poland, Korean, Czechish, Dutch, Arabic, SpanishEU, Turkey, Ukrainian, Hebrew, Hungarian, Romanian, Thai, Indonesian, Vietnamese, TradChinese, Japanese

Flash layout: 11 partitions, 11 written by this firmware

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

PartitionStartEndSizeImageFilesystemBuilt
dtb0x400000x80000256.0 KBdhdtb.bin.img—2026-04-13
mini-boot0xc00000x140000512.0 KBdhboot-min.bin.img—2026-04-13
bootloader0x2400000x3400001.0 MBdhboot.bin.img—2026-04-13
rootfs0x18400000x3e4000038.0 MBromfs-x.squashfs.imgsquashfs2026-04-13
firmware0x3e400000x644000038.0 MBfirmware-x.squashfs.imgsquashfs2026-04-13
custom0x64400000x68400004.0 MBcustom-x.squashfs.imgsquashfs2026-04-13
kernel0x68400000x6c400004.0 MBkernel.img—2026-04-13
web0x6c400000x6f400003.0 MBkernel-aol.img—2026-04-13
web0x6c400000x7c4000016.0 MBweb-x.squashfs.imgsquashfs2026-04-13
web0x6f400000x7b4000012.0 MBrollback-aol.squashfs.imgsquashfs2026-04-13
pd0x7c400000x7f400003.0 MBpd-x.squashfs.imgsquashfs2026-04-13

check.bin

Architecture
arm
OEM build
General
Image dates
Apr 13, 2026
Security
Signed, security baseline V2.4
Language & video
English by default · 23 languages · PAL
Software version
V3.201.0000007.1.R.260413
Supported languages (23)

English, Italian, Spanish, Russian, French, German, Portugal, Poland, Korean, Czechish, Dutch, Arabic, SpanishEU, Turkey, Ukrainian, Hebrew, Hungarian, Romanian, Thai, Indonesian, Vietnamese, TradChinese, Japanese

About the security baseline: firmware with a higher security baseline can stop a device going back to older firmware. A device already on a higher baseline than V2.4 may refuse this file, and after installing it you may not be able to downgrade to firmware with a lower baseline.

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