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Firmware

Amcrest_SD-Prometheus_Eng_NP_Stream3_AMCREST_V2.812.00AC000.0.R.221024.bin

Amcrest firmware released Oct 24, 2022. May work with 61 devices, including CA-HZ2023XA-A, CA-HZ2023XA-B, CA-HZ2023XA2-A.

Released
Oct 24, 2022
Version
V2.812.00AC000.
Size
195.1 MB
Hardware
61 devices

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5
f2e47e1f6a5e003f86cf8bd449c7e45e
SHA-256
b06c50c2a98cb827c99ac74d9a89cb5895643cf62a0954c40f97484cc6adaffd
Changelog
Release notes

Where it's published

Compatible hardware

Hardware IDs this firmware's installer accepts (61 devices).

Where these IDs come from
  • hwid: the device's own hardware check list, 61 IDs
  • Install: the installer's device list (board families), 1 ID, vendor Amcrest (not counted: a more specific list exists)
  • check.img: the device's own hardware check list, 61 IDs

Technical details

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

Architecture
arm
OEM build
Amcrest
Flash
3.5 GB
Image dates
Oct 24, 2022
Security
Signed, encrypted, security baseline V2.2
Language & video
English by default · NTSC
Flash layout: 20 partitions, 7 written by this firmware

From the firmware's partition table (partitionV2.txt).

PartitionStartEndSizeImageFilesystemBuilt
U-Boot0x2000000x3000001.0 MBdhboot.bin.img—2022-10-24
hwid0x3000000x4000001.0 MBnot written——
updateflag0x4000000x5000001.0 MBnot written——
partition(ro)0x5000000x6000001.0 MBpartition-x.cramfs.imgcramfs2022-10-24
lens0x6000000x8000002.0 MBnot written——
Kernel0x8000000x180000016.0 MBkernel.img—2022-10-24
custom(ro)0x18000000x1c000004.0 MBcustom-x.squashfs.imgsquashfs2022-10-24
product(ro)0x1c000000x20000004.0 MBpd-x.squashfs.imgsquashfs2022-10-24
romfs(ro)0x20000000x16000000320.0 MBromfs-x.squashfs.imgsquashfs2022-10-24
web(ro)0x160000000x1800000032.0 MBweb-x.squashfs.imgsquashfs2022-10-24
coredump0x2f9000000x3c100000200.0 MBnot written——
dgs0x3c1000000x3c9000008.0 MBnot written——
model0x3c9000000x53900000368.0 MBnot written——
reserve0x539000000x5590000032.0 MBnot written——
ext0x560000000x5c00000096.0 MBnot written——
devconfig0x5c0000000x5d00000016.0 MBnot written——
syslog0x5d0000000x5e00000016.0 MBnot written——
config0x5e0000000x5f00000016.0 MBnot written——
backup0x5f0000000x6000000016.0 MBnot written——
appdata0x600000000xe00000002.0 GBnot written——

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 V2.2 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.