Search results

I combined the header from an older firmware with the new one just to look what will happen. The error "Firmware mismatch" doesn't show up. The DVR reads the firmware file till the end and then shows the error "Upgrading failed, execute program error" So there must be another cheksum stored...

That is the reason i exracted header, cramfs and new_20.bin with a hex editor. In the new_20.bin there is a timestamp (2017 Jan 03 20:44:22). Just fo fun i added one second and the update fails. Could it be that i have to change the Version number which is stored in the update? Maybe the DVR...

Here the dav File

test@ubuntu:~/Desktop/1$ ./hikpack -t k41 -x digicap.dav -o 1 Magic : 484b5753 hdr_crc : 00001de9 (OK) lang_id : 00000001 date_hex: 20150315 devclass: 00000044 File: cramfs.img, CRC OK Can't read new_20.bin tail

I will tell you exactly what i did (maybe you can figure out my mistake): 1. decrypt whole untouched digicap.dav 2. open decrypted digicap.dav (from point 1) with hex editor and just changed the md5 value with the one from the cramfs.img and saved 3. encrypted the dav file again 5. opened...

Can you explain this a little bit more, please?

I tried it with hikpack. Put every unmodified file in a folder (just used 7zip to extract the files from the original dav file) - dav_header - gui_res.tar.lzma - payler.zip - start.sh - sys_app.tar.lzma - uImage - WebComponents.exe - webs.tar.lzma - new_20.bin User the command ./hikpack -t k41...

Because the dav file hikpack creates doesn't work. The DVR shows the error Firmware mismatch at the beginning. it doesn't fully read the file till the end. I think Hikpack can't handle the header. I tested this with unmodified files. Hikpack can't even extract the dav file correctly. because it...

The firmware i want to modify consists of 3 parts. 3 times Header + cramfs.img + new_20.bin. Just the last one worked on the DVR. So i will continue with the last one Decrypting and encrypting is working because md5 values of the files are the same. Following steps done: Extracting cramfs.img...

I want to change the Picture which is shown if no camera is connected. It is true that i have used a HEX editor just a couple of times. But i want to learn that. And i think with a little help I could do it

Is there any description about how to search the firmware for the HKWS characters. Because i have never done this before.

i think i need that split.txt file? where can i get it?

After Extracting i get 3 files. cramfs.img dav_extra_trail dav_header The cramfs.img contains a "new_10.bin" file. How can i do that?

Hi There, if i just extract and pack the dav file again (without modifying) i cant use it anymore. the DVR doen't accept the File. "Missmatch" error. It is an ANNKE DVR. Maybe the firmware isn't supported? - test@ubuntu:~/Desktop/1$ ./hikpack -t k41 -x annke.dav -o dav Magic : 484b5753...

i used this command to extract the dav file test@test-VirtualBox:~$ ./hikpack -t k41 -i digicap.dav -o contents Magic : 484b5753 hdr_crc : 00001d1a (OK) lang_id : 00000001 date_hex: 20150315 devclass: 00000043 File: cramfs.img, CRC OK WARN: missing new_20.bin trailer file Extra tail at the end...

i get the message "file not encrypter" i tried the tar.lzma files and the new_10.bin same result

Can i modify a DVR firmware? or is it just for IPC and NVR? because i don't know the firmware type. I tried k41 and got this: test@test-VirtualBox:~$ ./hikpack -t k41 -i 1.dav -o contents Magic : 484b5753 hdr_crc : 00001d1a (OK) lang_id : 00000001 date_hex: 20150315 devclass: 00000043 File...

Hi Guys i want to change the logo shown in the DVR. i extracted the digicap.dav and cramfs. Now i have a lot of .tar.lzma files. can some one explain how i can use the hikpack tool? Because i am totally new in linux. Thanks.

After i extracted the cramfs file i get some .tar.lzma files. i cant extract these files (tried in with windows and ubuntu). any idea how i can extract them?

Hi There i have a HikVision OEM (ANNKE) DVR. ANNKE send me the latest firmware (digicap.dav). I just want to change the logo/image which you can see if there is no camera connected. How can i do this? Because I couldn't find an image file in the firmware Thanks