Changes

Before setup, boot0, 1, and 2 are flashed, which begin the necessary processes of booting up the Wii in preparation for setup. Setup begins with a disc only titled "123J", also known as Data Check & Log Check, doing everything such as encrypting the NAND flash and potentially updating boot1. Another disc is inserted titled "121J", which we have less knowledge of. However, we know it enables the GameCube functionality of the Wii, and makes a factory test log file. Another disc titled "0002", also known as "Data Check & Log Check", which runs tests from an SD card. After those tests, another disk named "122E" installs the System Menu, IOSes, and channels. After the installation of those files, the Wii is done with its factory phase and it would be now ready to ship.

Before setup, boot0, 1, and 2 are flashed, which begin the necessary processes of booting up the Wii in preparation for setup. Setup begins with a disc only titled "123J", also known as Data Check & Log Check, doing everything such as encrypting the NAND flash and potentially updating boot1. Another disc is inserted titled "121J", which we have less knowledge of. However, we know it enables the GameCube functionality of the Wii, and makes a factory test log file. Another disc titled "0002", also known as "Data Check & Log Check", which runs tests from an SD card. After those tests, another disk named "122E" installs the System Menu, IOSes, and channels. After the installation of those files, the Wii is done with its factory phase and it would be now ready to ship.

 

== Preloading ==

== Preloading ==

Every Wii is preloaded at the hardware level with a couple pieces of software; these are already present on the Wii and will run when the Wii is powered on at the factory. The first of these pieces of software is boot0, the first piece of code ran on the Wii after power-on (which will stay the same from when it is physically programmed onto the chip to after factory setup, since it cannot physically be modified), which will check the Wii's OTP (one-time programmable) memory chip, and seeing that it is blank (as it is written to later in the process, using up its one opportunity to program it), determines that we are in the factory and continues with boot by loading boot1 from the NAND; after factory setup, there are keys present within this area, which boot0 uses to verify your copy of boot1, but during first factory boot this is neither possible nor needed, so boot0 skips it.  Next, boot1 loads from the NAND. Boot1 works as usual by verifying the signature of the boot2 on the NAND, then loading it; this process is identical as long as you have a properly signed boot2, so there's no special factory behavior that boot1 has here.

Every Wii is preloaded at the hardware level with a couple pieces of software; these are already present on the Wii and will run when the Wii is powered on at the factory. The first of these pieces of software is boot0, the first piece of code ran on the Wii after power-on (which will stay the same from when it is physically programmed onto the chip to after factory setup, since it cannot physically be modified), which will check the Wii's OTP (one-time programmable) memory chip, and seeing that it is blank (as it is written to later in the process, using up its one opportunity to program it), determines that we are in the factory and continues with boot by loading boot1 from the NAND; after factory setup, there are keys present within this area, which boot0 uses to verify your copy of boot1, but during first factory boot this is neither possible nor needed, so boot0 skips it.  Next, boot1 loads from the NAND. Boot1 works as usual by verifying the signature of the boot2 on the NAND, then loading it; this process is identical as long as you have a properly signed boot2, so there's no special factory behavior that boot1 has here.