Wiki Source code Discord Firmware Patcher

What is Fujihack?

Fujihack is a open-source hacked utility that can be run on Fujifilm cameras.
Fujihack can be run with a patched firmware. Alternative methods are under development.
It's currently a research project with the goal of improving and fixing cameras.

What's Been Done?

Unpack, repack, and modify firmware
Harmless code execution hijacks in firmware
Portable debugger firmware patch with brute force RAM searching
Patch PTP/USB opcode to run custom code and experiment quickly over USB
Documented hidden scripting abilities
Complete RAM and flash dump
Interface with embedded internal SQLite
Extend 14 minute record limit
Read IO: buttons, gyroscope, accelerometer
Fix broken shutter button with clever button remapping
Draw debug text and rasterizer objects
OpenGL graphics buffer rendering
Background task creation, deletion, semaphores, task hooks, events
Primitive card speed tests (capped at 35mbps)
Gryoscope Tetris, 7fps DOOM port
POSIX and Frontier compliant compatibility layer

Hacked Models

X-A2 @ 1.30 (Bin loader, USB code runner)
XF1 @ 1.01 (USB code runner)
Firmware downgrade has been tested on some lenses. (same firmware format used)

What's being worked on?

Researching less intrusive methods for code execution
Creating a custom menu with apps, scripts, and real time patching and tweaking
Bypassing error codes and remapping buttons to 'repair' broken or flawed cameras
Reverse engineering and tweaking imaging and video code

Would it work with my camera?

FujiHack will only ever work on Fujifilm X/GFX/HS/F/Z/Pro cameras. You can put your firmware file into the web patcher to see if FujiHack is compatible with your firmware type. In general, FujiHack does NOT support the XP and S series Fujifilm cameras. The S Series has already been hacked by CHDK forum members.

What is it written in?

The firmware debugger patches are written in standard ARM Assembly. Most Fujifilm cameras run a 32 bit ARM v6 SoC. Everything else is written in C, with some experiments in Rust.

When will you work on X?

This is an open-source non-profit project, and isn't backed by any company, and has no deadlines or plans. Consider it a miracle that it exists in the first place.

Still interested?

Join the Discord
I'm looking for broken Fujifilm cameras to run experiments on. If you are willing to donate one in the name of science, shoot me an email and I'd be happy to cover shipping costs.