VM@VirtualBox:~/$ binwalk update.img

DECIMAL       HEXADECIMAL     DESCRIPTION
--------------------------------------------------------------------------------
64            0x40            uImage header, header size: 64 bytes, header CRC: 0xE8C662A1, created: 2016-09-20 07:48:21, image size: 106496 bytes, Data Address: 0xA0F40000, Entry Point: 0xA0F60000, data CRC: 0xA39C40F4, OS: Linux, CPU: ARM, image type: Standalone Program, compression type: gzip, image name: "linux"
128           0x80            CramFS filesystem, little endian, size: 106496 version 2 sorted_dirs CRC 0x9242A763, edition 0, 75 blocks, 4 files
106624        0x1A080         uImage header, header size: 64 bytes, header CRC: 0xB5605774, created: 2016-09-20 07:48:20, image size: 13299712 bytes, Data Address: 0xA0060000, Entry Point: 0xA0DA0000, data CRC: 0xE341140F, OS: Linux, CPU: ARM, image type: OS Kernel Image, compression type: gzip, image name: "hi3521Aromfs"
106688        0x1A0C0         Squashfs filesystem, little endian, version 4.0, compression:lzma, size: 13298761 bytes, 1131 inodes, blocksize: 131072 bytes, created: 2016-09-20 07:48:20
13406400      0xCC90C0        uImage header, header size: 64 bytes, header CRC: 0xDE309894, created: 2016-09-20 07:48:21, image size: 40960 bytes, Data Address: 0xA0F60000, Entry Point: 0xA0F80000, data CRC: 0xE55F7ED2, OS: Linux, CPU: ARM, image type: Standalone Program, compression type: gzip, image name: "linux"
13406464      0xCC9100        CramFS filesystem, little endian, size: 40960 version 2 sorted_dirs CRC 0xEEF3DB6F, edition 0, 261 blocks, 3 files
13447424      0xCD3100        uImage header, header size: 64 bytes, header CRC: 0x4A46CB73, created: 2016-09-20 07:48:21, image size: 1548288 bytes, Data Address: 0xA0DA0000, Entry Point: 0xA0F40000, data CRC: 0x30765101, OS: Linux, CPU: ARM, image type: Standalone Program, compression type: gzip, image name: "linux"
13447488      0xCD3140        Squashfs filesystem, little endian, version 4.0, compression:lzma, size: 1547672 bytes, 193 inodes, blocksize: 131072 bytes, created: 2016-09-20 07:48:20