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Firmware

General_IPC-HFW1XXX-Alps_Eng_P_V2.622.0000000.34.R.220825.bin

Dahua firmware released Aug 25, 2022. May work with 15 devices, including IPC-HDBW1220R-S-S2, IPC-HDBW1220R-S-V2, IPC-HDBW1220R-S2.

Released
Aug 25, 2022
Version
V2.622.0000000.34.R
Size
12.3 MB
Hardware
15 devices

Download

Download firmware

Permanent copy on the Internet Archive (item page)

MD5
c5781b39abefa130a3c1264ffc6caea3
SHA-256
bd46189df29ff4a6411124ee132c985fed0f0b0d30aab4a2a3cf072bc0ce6f06

Where it's published

Compatible hardware

Hardware IDs this firmware's installer accepts (15 devices).

Where these IDs come from
  • hwid: the device's own hardware check list, 15 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, 15 IDs

Technical details

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

Architecture
arm
OEM build
General
Kernel
Linux 3.0.8+
Bootloader
U-Boot 2010.06-svn5163
Flash
16.0 MB
Image dates
Aug 25, 2022
Security
Signed, not encrypted
Language & video
English by default · PAL
Flash layout: 12 partitions, 8 written by this firmware

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

PartitionStartEndSizeImageFilesystemBuilt
U-Boot0x400000x70000192.0 KBdhboot.bin.img—2022-08-25
hwid0x700000x8000064.0 KBnot written——
partition(ro)0x800000x9000064.0 KBpartition-x.cramfs.imgcramfs2022-08-25
custom(ro)0x900000xb0000128.0 KBcustom-x.squashfs.imgsquashfs2022-08-25
product(ro)0xb00000xd0000128.0 KBpd-x.squashfs.imgsquashfs2022-08-25
Kernel0xd00000x2300001.4 MBkernel.img—2022-08-25
romfs(ro)0x2300000x310000896.0 KBromfs-x.squashfs.imgsquashfs2022-08-25
web(ro)0x3100000x6200003.1 MBweb-x.squashfs.imgsquashfs2022-08-25
user(ro)0x6200000xf100008.9 MBuser-x.squashfs.imgsquashfs2022-08-25
syslog0xf100000xf60000320.0 KBnot writtenjffs2—
config0xf600000xfb0000320.0 KBnot writtenjffs2—
backup0xfb00000x1000000320.0 KBnot writtenjffs2—

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