Firmware

DH_TPC-BF5X21-TBHTM_MultiLang_PN_V2.631.0000000.5.R.210903.bin

Dahua firmware released Sep 3, 2021. May work with 7 devices, including TPC-BF2421-TBHTM, TPC-BF5121-TBHTMRI, TPC-BF5421-TBHTM.

Download

Permanent copy on the Internet Archive (item page)

Hardware IDs this firmware's installer accepts (7 devices).

Where these IDs come from

hwid: the device's own hardware check list, 7 IDs
Install: the installer's device list (board families), 4 IDs, vendor General (not counted: a more specific list exists)
check.img: the device's own hardware check list, 7 IDs

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

Supported languages (5)

English, TradChinese, Italian, Japanese, Korean

Flash layout: 21 partitions, 8 written by this firmware

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

Partition	Start	End	Size	Image	Filesystem	Built
mini-Boot	0x0	0x100000	1.0 MB	dhboot-min.bin.img	—	2021-09-03
U-Boot	0x200000	0x300000	1.0 MB	dhboot.bin.img	—	2021-09-03
hwid	0x300000	0x400000	1.0 MB	not written	—	—
dgs	0x400000	0x500000	1.0 MB	not written	—	—
updateflag	0x500000	0x600000	1.0 MB	not written	—	—
partition(ro)	0x600000	0x700000	1.0 MB	partition-x.cramfs.img	cramfs	2021-09-03
product(ro)	0x700000	0x900000	2.0 MB	pd-x.squashfs.img	squashfs	2021-09-03
Kernel	0x900000	0xf00000	6.0 MB	kernel.img	—	2021-09-03
romfs(ro)	0xf00000	0x2f00000	32.0 MB	romfs-x.squashfs.img	squashfs	2021-09-03
web(ro)	0x2f00000	0x3700000	8.0 MB	web-x.squashfs.img	squashfs	2021-09-03
firmware(ro)	0x3700000	0x7900000	66.0 MB	firmware-x.squashfs.img	squashfs	2021-09-03
backpart(ro)	0x7900000	0x7a00000	1.0 MB	not written	—	—
backproduct(ro)	0x7a00000	0x7c00000	2.0 MB	not written	—	—
backkernel	0x7c00000	0x8200000	6.0 MB	not written	—	—
backromfs(ro)	0x8200000	0xa200000	32.0 MB	not written	—	—
backweb(ro)	0xa200000	0xaa00000	8.0 MB	not written	—	—
backfirmware	0xaa00000	0xec00000	66.0 MB	not written	—	—
backup	0xef00000	0xf300000	4.0 MB	not written	ubi	—
syslog	0xf300000	0xf700000	4.0 MB	not written	ubi	—
config	0xf700000	0xfb00000	4.0 MB	not written	ubi	—
data	0xfb00000	0x10000000	5.0 MB	not written	ubi	—

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