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[MCR] Hikvision packer/unpacker for 5.3.x and newer firmware

JSnP

Young grasshopper
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Jun 19, 2019
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I have a Hikvision video doorbell based on this one: EZVIZ - a global smart home security brand and I'd like to properly unpack the firmware. (V5.2.4)

hikpack seems to unpack them:
hikpack -t r0 -x <file> -o <dir> (or "r1", both seem to work)

Magic : 484b5753
hdr_crc : 00002c82 (OK)
lang_id : 00000001
Date : -00001
version : ffffffff
frm_flg : 5140020021150000011
File: app.img, CRC OK
File: res.bin, CRC OK
File: mcu.bin, CRC OK
File: arc.bin, CRC OK

The res.bin is a jffs file which can be extracted with jefferson. It contains .aac audio files.
I'm stuck on what to do with the larger app.img file. binwalk doesn't extract it (or does so improperly) Any hints?

Also, is this a recognized .dav file format where I could modify contents, repack and use?

samples:
Code:
http://usdownload.ezvizlife.com/device/HSDB2/2.0/HSDB2.dav
http://usdownload.ezvizlife.com/device/NDB313-W/2.0/NDB313-W.dav
 

alastairstevenson

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bugmenot01

n3wb
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Dec 31, 2015
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where can i download the hik_repack tool by leecher? looking to unpack some G1 firmware but it doesnt seem to be supported by hikpack_2.5?
 
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