ashwin-iyer1/uniden-firmware-decompilation-tool

This is a collection of open tools for decoding, editing, and repacking the firmware inside a Uniden R7 radar detector. The goal is to let owners customize their own device: edit menu and display text, swap the boot logo and other bitmaps, build a custom GPS or red-light-camera database, and even edit the idle Scan animation. Every tool is designed to round-trip byte-for-byte, meaning if you decode the firmware and re-encode it without making changes, you get back the exact original file. The README is upfront about risk. Flashing modified firmware can brick the detector, though the R7 has a Recovery Mode that can restore a good image in most cases. The project ships only tools and documentation, not the firmware itself, since the firmware is Uniden's copyrighted property. Radar detectors are also illegal in some jurisdictions, and the project takes no position on where or how you use one. The tools are Python scripts run from a command line. They cover text editing, graphics replacement, GPS database management, the Scan animation, RF band frequency windows, and voice or alert audio. There are also utilities for inspecting the firmware container and analyzing how the device matches camera locations. The firmware file is a container of named sections, each obfuscated with a 2-bit-plane transpose and a per-section subtract key. Decoding the code sections yields ARM Cortex-M images. Requirements are Python 3.9 or newer, the Pillow library for graphics work, a micro-USB data cable, and a specific Silicon Labs driver to talk to the detector. The tools were reverse-engineered from firmware version R7_v153.150.127, and feature-specific offsets are hardcoded to that version. The project is unaffiliated with Uniden and licensed under the GNU AGPL-3.0. The full README is longer than what was shown.