9.0.0-20
The 9.0.0-20 system update was released on October 6, 2014.
Change-log
Official change-log:
- Users can now use themes to customize the design and sounds of the HOME Menu
- Five themes are pre-installed and additional themes can be purchased from the Theme Shop
- Themes can be changed by using settings located within the HOME Menu settings
- A feature has been added that allows users to capture screenshots of their HOME Menu
- The Nintendo eShop Title Information page has been updated to provide easier access to any available videos, demos, user reviews, and other information
- Further improvements to overall system stability and other minor adjustments have been made to enhance the user experience
System Titles
3DS
The following system-modules were updated: AM, camera, cfg, codec, gsp, hid, ac, cecd, CSND, dlp, http, ndm, NIM, NWM, SOC, SSL, PS, friends, IR, BOSS, news(notifications), RO, NS, and act.
The following applications were updated: System Settings, Download Play, Nintendo 3DS Camera, eShop, System Transfer, and NNID settings.
The following "applets" were updated: ErrDisp, Home Menu, camera, Instruction Manual, Game Notes, Friend List, Notifications, error, Software Keyboard, appletEd, PNOTE_AP, SNOTE_AP, extrapad, mint, Miiverse, and Miiverse memolib.
An applet with TID-low 00008B02 was added, "solv3". The description from the ExeFS icon is "Post to Miiverse".
The following titles were also updated: 0004009B00012302, EULA CFA, NGWord bad word list CFA, Nintendo Zone hotspot list CFA, NVer, CVer, 0004001B00018002, 0004001B00018102, and 0004001B00018202.
NS_CFA was updated, the following new file was added to the RomFS: "qtm_black_list".
NATIVE_FIRM was also updated.
New3DS
New3DS versions of most sysmodules were added with this upgrade.
This upgrade included 3 new sysmodules:
- NFC -- talking to NFC hardware (over I2C).
- MVD
- QTM -- camera headtracking? (over I2C).
FIRM
For New3DS firmwares (NATIVE_FIRM, TWL_FIRM, ..), the ARM9 binary has an additional layer of crypto. At the end of each ARM9 binary, there's a plaintext loader.
If (u8*)0x10000000 bit 1 is clear (which means that this happens only on hard reboots), it does the following things:
- Hashes data from the region 0x10012000-0x10012090 using SHA2.
- Initializes AES keyslot 0x11 keyX, keyY to the lower and higher portion of that hash, respectively.
- Decrypts arm9_bin_buf+0 using keyslot 0x11, and initialises keyX for keyslot 0x15 with it.
- Initialises KeyX for keyslots 0x18-0x20 with the output of encrypting a certain binary sequence using keyslot 0x11. These are presumably New3DS-specific keys.
It sets KeyY for keyslot 0x15 to arm9_bin_buf+16, the IV to arm9_bin_buf+32. It then proceeds to decrypt the binary. When done, it decrypts arm9_bit_buf+64 using a fixed key and makes sure it's all zeroes. It it is, it jumps to the decrypted addr. Otherwise it will just loop forever.
| OFFSET | SIZE | DESCRIPTION |
|---|---|---|
| 0x000 | 16 | Encrypted KeyX |
| 0x010 | 16 | KeyY |
| 0x020 | 16 | IV |
| 0x030 | 16 | ? |
| 0x040 | 16 | Control block |
See Also
System update reports: