TwlNmenu

TwlNmenu is the name of an application that comes bundled with TwlSDKs and the SystemUpdater. This application installs TAD files, the DSi equivalent to the Nintendo Wii's WAD archives. TwlNmenu is able to install all types of NAND programs including firmware, however the NAND tab will only display user apps (TIDs starting with 00030004). This may have been done to prevent developers from erasing necessary system programs.

TwlNmenu's icon.

TAD File Format

The installable format, TAD, is the same as a WAD, even down to development versions using the same encryption key. The only changes in a TAD are using DSi signing keys and certs, as well as removing multiple contents from the TMD due to no support in the firmware. This lack of difference can be explained by a commit to TwlIPL where all instances of "WAD" were renamed to "TAD". Even TwlNmenu's name comes from the Wii's Nmenu, and both tools use the same eTicket Services library.

TADs can be read, edited, and resigned with Wii tools, though TwlNmenu will not accept tampered TADs. This is because the DSi doesn't have the fakesigning bug, and TwlNmenu is more strict about checking a TAD's TMD and ticket.

A TAD file can be created using a tool included with the TwlSDK, named Maketad.

Screenshots

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  TwlNmenu on the home menu.

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  Start screen of TwlNmenu. It shows all applications installed in folder NAND:/title/00030004.

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  TwlNmenu asking if you want to install the chosen application.

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  TwlNmenu installing an application.

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  Back on the homescreen, you can see an application has been installed.

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  This lets you delete private.sav in the application folder.

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  TwlNmenu asking if you'd like to delete a 4SPA file

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  Lets you delete all apps with the same "CompanyCode".

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  TwlNmenu showing the size, title ID, the size of the save files, and so on.

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  The SD Card menu can do the same.

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  TwlNmenu asking if you want to import all TAD files in the folder you're in.

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  TwlNmenu importing all TAD files.