Mk-firmware-pack [2026]
In the console, run:
qmk compile -kb your_keyboard -km your_name
If successful, you will see your_keyboard_your_name.hex created in the root folder.
mk-firmware-pack is a command-line utility used to create, unpack, and manipulate firmware images for devices based on Action Semiconductor processors (e.g., ATJ227x, ATJ225x, E200). It is part of a family of reverse-engineered tools developed by the open-source community (notably from projects like Rockbox and GitHub user vpinon) to handle proprietary binary firmware formats. mk-firmware-pack
The tool allows developers and hobbyists to: In the console, run: qmk compile -kb your_keyboard
project/ bootloader/ kernel/ dtb/ firmware/ rootfs/ scripts/ metadata.yml The tool allows developers and hobbyists to: project/
Example metadata.yml keys:
| Scenario | Command / Action |
|----------|------------------|
| Backup original firmware | mk-firmware-pack -x vendor_fw.fw |
| Replace boot logo | Unpack → modify bitmap in FS → repack |
| Install custom firmware | Replace main.bin with Rockbox bootloader |
| Debug boot failures | Extract and analyze individual sections |
| Brick recovery | Repack known-good FS after erasing bad blocks |