With certain 3DS nandimages, the following NCCH can be recovered from NAND(in some cases these are somewhat corrupted). In some cases, only 000400000F980000 is left, in other cases the NCCH headers for all of these are overwritten. All of these use the retail NCCH secure-crypto mode, the NCCH accessdesc uses the retail pubk too.
Note that Nandrw/sys/updater.log, Twln/sys/log/inspect.log, and Twln/sys/log/product.log gets written during Factory Setup. CTRAging appears to do the product.log writing.
CTRAging appears to be an app which is used for hardware testing at the factory. This app also displays images(including Chinese/Asian-language text) which appear to be for system assembly/testing. CTRAging includes images for each 3DS model(which ones are included depends on the CTRAging version): original Old3DS, Old3DS XL, 2DS, regular New3DS, and New3DS XL. Some of the New3DS JPEG images have an EXIF last-modified timestamp of 2013, July-September.
Originally these titles(except for CTRAging) and the exheader dependency lists had TID-high 00040001, later that was changed to the normal TID-highs.
| TID-high | TID-low | Description |
|---|---|---|
| 00040000 | 0F980000 | CTRAging ("Test Program") |
| 00040001 | 00000002 | NATIVE_FIRM |
| 00040001 | 00000102 | TWL_FIRM |
| 00040001 | 00000202 | AGB_FIRM |
| 00040001 | 00001802 | codec sysmodule |
| 00040001 | 00001902 | dmnt sysmodule (Debugger sysmodule, see here) |
| 00040001 | 00001A02 | dsp sysmodule |
| 00040001 | 00001B02 | gpio sysmodule |
| 00040001 | 00001D02 | hid sysmodule |
| 00040001 | 00001E02 | i2c sysmodule |
| 00040001 | 00001F02 | mcu sysmodule |
| 00040001 | 00002102 | pdn sysmodule |
| 00040001 | 00002302 | spi sysmodule |
| 00040001 | 00002702 | csnd sysmodule |
| 00040001 | 00002802 | dlp sysmodule |
| 00040001 | 00002A02 | mp sysmodule |
| 00040001 | 00002B02 | ndm sysmodule |
| 00040001 | 00002C02 | nim sysmodule |
| 00040001 | 00002D02 | nwm sysmodule |
| 00040001 | 00002E02 | socket sysmodule |
| 00040001 | 00003102 | ps module |
| 00040001 | 00003202 | friends sysmodule |
| 00040001 | 00003302 | ir sysmodule |
| 00040001 | 00003402 | boss sysmodule |
| 00040001 | 00008002 | NS |
| 00040001 | 00008102 | TestMenu |
| 00040001 | 00008A02 | DevErrDi |
| 00040030 | 00008102 | TestMenu |