Changes

[[File:0002-3.png|thumb|PUSH RESET BUTTON]]

[[File:0002-3.png|thumb|PUSH RESET BUTTON]]

This disc and accompanying WAD file are known as "0002", but the in-program name is "DATA CHECK & LOG CHECK".  There are two known versions of this file; one dumped from @Larsenv's NAND dump collection which is older (1.5.0), and one dumped from a Wii owned by a friend of @fluffy which is newer (1.5.1). The exact circumstances around the deletion of this file are unknown; it is NOT present on all Wiis after factory setup, in fact, it's absent from the majority of them. If you are reading this and have your Wii NAND dump at the ready, check it in ShowMiiWads, because you may find a new version of 0002. We're still not sure how this happens. (Also, as we have 0002, screenshots of it will be posted at the end.)

This disc and accompanying WAD file are known as "0002", but the in-program name is "DATA CHECK & LOG CHECK".  There are two known versions of this file; one dumped from @Larsenv's NAND dump collection which is older (1.5.0), and one dumped from a Wii owned by a friend of @fluffy which is newer (1.5.1). The exact circumstances around the deletion of this file are unknown; it is NOT present on all Wiis after factory setup, in fact, it's absent from the majority of them. If you are reading this and have your Wii NAND dump at the ready, check it in ShowMiiWads, because you may find a new version of 0002. We're still not sure how this happens.

Of course, that's just the meta info around 0002; what does it actually do? 0002 is the main app that runs all of the tests ran on each Wii during factory setup. However, 0002 doesn't actually contain any test programs; it reads and launches them off of an external SD card, based on a list of tests also present on said SD card known as all.ini. As this all.ini file is copied to NAND for an unknown reason, albeit removed afterwards, we also have a copy of it as bushing (RIP) salvaged it and uploaded it to HackMii. 0002 will read this file from the SD card, and launch test programs (in DOL format) from the SD card. As such, it's difficult to analyze 0002's behavior without actually having these test programs or all of the contents of the factory SD cards, as we only know about the all.ini and the presence of the test programs in it. It's worth noting that all.ini contains listings for test programs clearly intended only for Wii prototype models and even GameCube units of various types, meaning that it most likely dates back to pre-Wii and was used for some purpose on the GameCube; and that not all of the files are actually present on the factory SD cards, or at least not ran normally, as many of the programs would not even run on a standard retail Wii.

Of course, that's just the meta info around 0002; what does it actually do? 0002 is the main app that runs all of the tests ran on each Wii during factory setup. However, 0002 doesn't actually contain any test programs; it reads and launches them off of an external SD card, based on a list of tests also present on said SD card known as all.ini. As this all.ini file is copied to NAND for an unknown reason, albeit removed afterwards, we also have a copy of it as bushing (RIP) salvaged it and uploaded it to HackMii. 0002 will read this file from the SD card, and launch test programs (in DOL format) from the SD card. As such, it's difficult to analyze 0002's behavior without actually having these test programs or all of the contents of the factory SD cards, as we only know about the all.ini and the presence of the test programs in it. It's worth noting that all.ini contains listings for test programs clearly intended only for Wii prototype models and even GameCube units of various types, meaning that it most likely dates back to pre-Wii and was used for some purpose on the GameCube; and that not all of the files are actually present on the factory SD cards, or at least not ran normally, as many of the programs would not even run on a standard retail Wii.

Once 0002 has executed all its tests and verified that the Wii's hardware is OK to ship out, there's still one more step; installing the System Menu, IOSes, and channels. This process is akin to a standard disc update, where a disc is inserted, the contents of it are read, and WAD files are installed from those contents. The disc that handles this is known as 122E. Not much is specifically known about it, but it's pretty clear what it does; it installs the files on it, and sets up the Wii to be unboxed by the customer for the first time. As such, there are presumably many versions of this disc, and whenever Nintendo wanted to do an update to the Wii's pre-installed software, they just issued an update to this disc. Once this disc has finished doing its stuff, you're done; the System Menu has been installed, all of the pre-installed software has been installed, and the Wii is ready for packaging up and shipping. 35-year-old Jenny goes out and buys the Wii from her local Target and spends 10 minutes trying to figure out how to set up the sensor bar, then gets past the language select screen and sets it up so she can finally play Zumba Fitness.

Once 0002 has executed all its tests and verified that the Wii's hardware is OK to ship out, there's still one more step; installing the System Menu, IOSes, and channels. This process is akin to a standard disc update, where a disc is inserted, the contents of it are read, and WAD files are installed from those contents. The disc that handles this is known as 122E. Not much is specifically known about it, but it's pretty clear what it does; it installs the files on it, and sets up the Wii to be unboxed by the customer for the first time. As such, there are presumably many versions of this disc, and whenever Nintendo wanted to do an update to the Wii's pre-installed software, they just issued an update to this disc. Once this disc has finished doing its stuff, you're done; the System Menu has been installed, all of the pre-installed software has been installed, and the Wii is ready for packaging up and shipping. 35-year-old Jenny goes out and buys the Wii from her local Target and spends 10 minutes trying to figure out how to set up the sensor bar, then gets past the language select screen and sets it up so she can finally play Zumba Fitness.