The SystemUpdater is a collection of cartridges/SRL files that allow you to update or downgrade an IS-TWL-DEBUGGER. These were mainly used for development, and they do not work on a Panda DSi or retail units.

SystemUpdater
SystemUpdaterMenu.png
Picture of v1.4a, running on No$GBA
Cart IDNTRJ
Found versionsv1.3a, v1.4, v1.4a
Cart AppearanceA white reflashable Nintendo cartridge
Cart Release Date2010-04-15 (v1.4a)

Features

The features for this cartridge are very simple. The cartridge contains updates for all regions (including China and Korea since v1.4) and they will be installed when selected. When a region has been selected, all the data will be deleted from the NAND and devsigned TAD's will be installed. Unlike regular TWL carts and exploits that do not have NAND access, this one does. If done correctly, the tickets, TWLCFG0.dat, TWLCFG1.dat and the system menu, with the bundled DSi applications have been installed. TwlNmenu and NandFiler are optional.

Screenshots

 
The main menu, showing a selection of regions.
 
The updater asking if you want to continue, deleting all data from the console.
 
You can cancel the update by pressing B, freezing the menu, forcing you to restart.
 
Confirmed image of the cartridge.