Firmware

DH_SD-Wei-Warpway_Eng_P_Stream3_V2.623.0000000.5.R.180821.bin

Viatec and Dahua firmware released Aug 21, 2018. May work with 54 devices, including CA-HZ2025VA-A, CA-HZ2032-WARPWAY-A, CA-HZ2033VA-A.

Download

Permanent copy on the Internet Archive (item page)

Hardware IDs this firmware's installer accepts (54 devices).

Where these IDs come from

hwid: the device's own hardware check list, 54 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, 54 IDs

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

Flash layout: 18 partitions, 8 written by this firmware

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

Partition	Start	End	Size	Image	Filesystem	Built
U-Boot	0x200000	0x300000	1.0 MB	dhboot.bin.img	—	2018-08-21
hwid	0x300000	0x400000	1.0 MB	not written	—	—
updateflag	0x400000	0x500000	1.0 MB	not written	—	—
partition(ro)	0x500000	0x600000	1.0 MB	partition-x.cramfs.img	cramfs	2018-08-21
Kernel	0x600000	0xb00000	5.0 MB	kernel.img	—	2018-08-21
romfs(ro)	0xb00000	0x5000000	69.0 MB	romfs-x.squashfs.img	squashfs	2018-08-21
custom(ro)	0x5000000	0x5400000	4.0 MB	custom-x.squashfs.img	squashfs	2018-08-21
product(ro)	0x5400000	0x5800000	4.0 MB	pd-x.squashfs.img	squashfs	2018-08-21
web(ro)	0x5800000	0x7000000	24.0 MB	web-x.squashfs.img	squashfs	2018-08-21
lens	0xdb00000	0xdd00000	2.0 MB	not written	—	—
ext	0xdd00000	0x16700000	138.0 MB	not written	ext4	—
dgs	0x16700000	0x16800000	1.0 MB	not written	—	—
syslog	0x16800000	0x17000000	8.0 MB	not written	ext4	—
config	0x17000000	0x17800000	8.0 MB	not written	ext4	—
backup	0x17800000	0x18000000	8.0 MB	not written	ext4	—
fpga(ro)	0x18000000	0x1b200000	50.0 MB	cam_fimg.img	ext4	2018-08-21
blob(ro)	0x1e400000	0x5e400000	1.0 GB	not written	ext4	—
appdata	0x73000000	0xf3000000	2.0 GB	not written	ext4	—

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