Data Check and Log Check
| GameID | 0002 |
|---|---|
| Title IOS | 1.5.0/1.5.1: IOS9 |
Data Check and Log Check, also known under its GameID 0002 or its filename DataChk.wad, is a Wii program used to run various checks during the factory process.
Contrary to what its GameID suggests, 0002 is not a disc, but rather a NAND title installed by the 122E factory disc. Its contents are not always deleted after factory setup, and as such multiple versions have been recovered from consoles.
When booted, Data Check and Log Check reads the SD card for an "all.ini" file, then runs test programs off the SD card according to the instructions contained in it.
Role in the Factory Process
Main Article: Wii Factory Process § DCLC Disc Information
There are different versions of the WAD file, and they are not present on all Wiis. As noted above, 0002 does not contain any test programs, it just runs them off an SD card with a file called all.ini. Since it reads the file from the factory SD card, we do not know much about actual information from the test programs. all.ini contains listings for test programs only for Wii prototype models and even some GameCube models, so it is reasonable to deduce that it dated back to pre-Wii and had a use for the GameCube, and not all files are present on SD cards; many of the programs would not even run on a standard Wii.
