: If using Linux-based tools on Windows, setting up Windows Subsystem for Linux (WSL) is highly recommended for proper file permission handling.
Here is the general workflow used by automated ROM kitchens to unpack, modify, and repack an Android firmware package. Step 1: Extracting the Base Firmware
Choose the original filesystem (e.g., EXT4 or EROFS). auto tool unpack repack rom android
The tool calculates the required partition size and uses make_ext4fs or mke2fs to compile the folder back into a raw .img file.
For Linux users, a manual mount-based workflow provides maximum control. Convert the sparse image if necessary ( simg2img system.img system.raw.img ), mount it ( sudo mount -o loop system.raw.img /mnt/system ), make modifications, and then repack using tools like make_ext4fs . : If using Linux-based tools on Windows, setting
The Android modding community has witnessed a remarkable transformation in recent years. What once required hours of manual command-line work, extensive knowledge of Linux file systems, and a tolerance for cryptic error messages has now been streamlined into automated processes. At the heart of this evolution lies a category of tools collectively known as , designed to extract the contents of firmware packages, allow modifications, and reassemble them into flashable packages—all while handling the complex technical details automatically.
A powerful terminal-based kitchen designed for unpacking and repacking via CLI. It is ideal for users who prefer a lightweight command-line interface but want the automation of a dedicated tool. The tool calculates the required partition size and
If using super.img , the tool will invoke lpunpack to separate it into system , vendor , and product folders.
For users who prefer command-line tools, Magisk's magiskboot binary offers precise control. The unpack command ( magiskboot unpack boot.img ) extracts the kernel, ramdisk, DTB, and other components. After modifications (e.g., replacing the kernel or editing the ramdisk), run magiskboot repack boot.img to reconstruct the image. The tool automatically detects compression formats and preserves special headers like those used by MediaTek devices.
Best for: Linux and WSL2 users
Automatically unpacks super.img , decompresses .br files, extracts payload.bin , and repacks them back into flashable formats. 2. Super_Image_Dumper / Imgextractor (Cross-Platform)