Drxtool Wii U

drxtool
File:Drxtoolwiiu.png
General
Author	WulfyStylez/SALT
Type	PC Utilities
Version	2.0
License	Mixed
Last Updated	2016/12/14
Links
Download
Website
Source

drxtool allows you to extract, modify, and rebuild DRC (gamepad) and DRH (host) firmware binaries, including actual firmware (e.g. drc_fw.bin, drh_fw.bin) as well as language data (lang_00.bin, etc.).

This subsequently allows for firmware RE and patching, switching out graphics, enabling debug modes, etc.

User guide

Extraction:

• Drag and drop a binary onto drxtool to extract it to [filename]_extracted.
• The extracted content will be split into its components, including separate sections for firmwares.
• Language files are consolidated due to varying layouts per firmware version.

Rebuilding:

• Drop an extracted folder onto drxtool to rebuild it into [foldername].bin.

In both cases, drxtool can be invoked from command line/terminal for additional debug output.

This has been tested and is working on all DRC, DRH, and language data dating back to the very first external beta builds for near-final gamepad hardware (v16, though v15 likely ran on this hardware as well).

Earlier hardware uses a different update format (the hw has all likely been destroyed by now.)

For flashing binaries with ios-level hax, adjust the first big-endian u32 in blob_header.bin by incrementing it by 1. Additionally, modify the version in app.xml. Updating VER_.bin is unnecessary, as the gamepad and drh are indifferent to their versions; only IOS matters.

Other update methods include potentially using libdrc to push an update directly to the gamepad (remove the first 0x10, a big-endian header used by IOS), or writing the payload directly to the serial EEPROM (remove the first 0x10+0x1000+0x4000), which is useful for unbricking.

Changelog

v2.0 2016/12/14

• Initial public release.

v1.0 2016/08/10

• It lives!

External links

• GBAtemp - https://gbatemp.net/threads/release-drxtool-gamepad-drh-firmware-hacking-utility.453143/