1

Is it possible to unpack this firmware for ZXIC chipset device?

I tried to unpack it with binwalk but wasn't successful and I saw this information:

DECIMAL       HEXADECIMAL     DESCRIPTION
--------------------------------------------------------------------------------
24264         0x5EC8          uImage header, header size: 64 bytes, header CRC: 0x9F7BA51, created: 2021-12-27 10:36:17, image size: 148376 bytes, Data Address: 0x21EF0000, Entry Point: 0x21EF0000, data CRC: 0xF9C36244, OS: Firmware, CPU: ARM, image type: OS Kernel Image, compression type: none, image name: "ZX297520"
36788         0x8FB4          gzip compressed data, from TOPS/20, last modified: 1970-01-01 00:00:00 (null date)
177172        0x2B414         JFFS2 filesystem, little endian
29234636      0x1BE15CC       uImage header, header size: 64 bytes, header CRC: 0x9F7BA51, created: 2021-12-27 10:36:17, image size: 148376 bytes, Data Address: 0x21EF0000, Entry Point: 0x21EF0000, data CRC: 0xF9C36244, OS: Firmware, CPU: ARM, image type: OS Kernel Image, compression type: none, image name: "ZX297520"
29247160      0x1BE46B8       gzip compressed data, from TOPS/20, last modified: 1970-01-01 00:00:00 (null date)
29383460      0x1C05B24       uImage header, header size: 64 bytes, header CRC: 0x9F7BA51, created: 2021-12-27 10:36:17, image size: 148376 bytes, Data Address: 0x21EF0000, Entry Point: 0x21EF0000, data CRC: 0xF9C36244, OS: Firmware, CPU: ARM, image type: OS Kernel Image, compression type: none, image name: "ZX297520"
29395984      0x1C08C10       gzip compressed data, from TOPS/20, last modified: 1970-01-01 00:00:00 (null date)

with hex editor, we can check some internal files packed. enter image description here

firmware link

Thank you

2
  • Are you using the -e flag?
    – mumbel
    Commented Sep 24, 2022 at 15:40
  • ok, thanks for your answer, must i need to use Linux to do it, because jefferson can't install on Windows with python. And when i use binwalk -e it shows this image, but we can't find uboot.bin, z-loader and others files. ![binwalk output](i.sstatic.net/dKBjl.png)
    – 0xnewbie
    Commented Sep 24, 2022 at 19:51

1 Answer 1

3

Install jefferson, which is unpacker for jffs2 file system used in your image, if it is not installed yet, and run binwalk -e -M firmware.bin -C [result folder]

I checked this with your firmware, works fine. If you have problems with your run try to update your binwalk and other utilities it uses.

  • -M flag is for "matroshka" mode, it will unpack everything potentially unpackable inside the already unpacked images.
  • -e is for extraction

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.