Yaakiyu.jp: Created page with "以下は重要なシステムファイルやその他のデータの一覧です。"

2026-03-02T09:51:56Z

Created page with "以下は重要なシステムファイルやその他のデータの一覧です。"

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	~~<div lang="en" dir="ltr" class="mw-content-ltr">~~		以下は重要なシステムファイルやその他のデータの一覧です。
	~~This is a list of important system files or other data.~~
	~~</div>~~
	{\| class="wikitable"		{\| class="wikitable"
	!Filename		!Filename

Yaakiyu.jp: Created page with "3DS:システムファイル"

2026-03-02T09:51:41Z

Created page with "3DS:システムファイル"

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<div lang="en" dir="ltr" class="mw-content-ltr">
This is a list of important system files or other data.
</div>
{| class="wikitable"
!Filename
!Name in essential.exefs
!Path in GodMode9
!Purpose
!Importance
|-
|<code>LocalFriendCodeSeed_B</code>
|<code>frndseed</code>
|<code>1:/rw/sys/LocalFriendCodeSeed_B</code>
|<span lang="en" dir="ltr" class="mw-content-ltr">Used to identify the console for online play.</span>
|<span lang="en" dir="ltr" class="mw-content-ltr">Bans from online play are effectively bans on the LFCS. (Don't ask here or NH for help on how to get unbanned.)</span>
|-
|<code>HWCAL0.dat</code> and <code>HWCAL1.dat</code>
|<code>hwcal0</code> and <code>hwcal1</code>
|<code>1:/ro/sys/HWCAL0.dat</code> and <code>1:/ro/sys/HWCAL1.dat</code>
|<span lang="en" dir="ltr" class="mw-content-ltr">Contains hardware calibration data. Parts of this are put into the Config savegame during first-time setup.</span>
|<span lang="en" dir="ltr" class="mw-content-ltr">If this file is lost or taken from a different console, then when the console is formatted, the calibration data will be inaccurate and can result in problems such as flickering screens.</span>
|-
|<code>movable.sed</code>
|<code>movable</code>
|<code>1:/private/movable.sed</code>
|<span lang="en" dir="ltr" class="mw-content-ltr">Contains data that is used to encrypt digital games and saves on the SD card. Also used for CMACs on various NAND files.</span>
|<span lang="en" dir="ltr" class="mw-content-ltr">Keeping a backup of this is important if you want to ensure you can still recover your old saves if your console is lost or broken!</span>
|-
|NAND CID
|<code>nand_cid</code>
|<code>M:/nand_cid.mem</code>
|<span lang="en" dir="ltr" class="mw-content-ltr">Used as part of the NAND encryption.</span>
|<span lang="en" dir="ltr" class="mw-content-ltr">This can be used to decrypt a NAND backup on a PC, however it's not strictly required for 99.9% of cases.</span>
|-
|NAND header
|<code>nand_hdr</code>
|<code>S:/nand_hdr.bin</code>
|<span lang="en" dir="ltr" class="mw-content-ltr">Contains information on the NAND partitions. The console-unique part here include the TWL MBR, which is encrypted per-console.</span>
|<span lang="en" dir="ltr" class="mw-content-ltr">Corrupting this will prevent the console from starting. However GodMode9 can generate a new one in its place if you can use it through something like [[3DS:Ntrboot|ntrboot]].</span>
|-
|OTP
|<code>otp</code>
|<code>M:/otp.mem</code> and <code>M:/otp_dec.mem</code>
|<span lang="en" dir="ltr" class="mw-content-ltr">Contains various kinds of console-unique data. Used to generate encryption keys and identifies a console in some cases like the eShop. See also: [[3dbrew:OTP Registers]]</span>
|<span lang="en" dir="ltr" class="mw-content-ltr">This is required to decrypt a NAND backup on a PC. Sharing this means someone could impersonate your console to Nintendo, so don't post it in a public space!</span>
|-
|<code>SecureInfo_A</code> or <code>SecureInfo_B</code>
|<code>secinfo</code>
|<code>1:/rw/sys/SecureInfo_A</code> or <code>1:/rw/sys/SecureInfo_B</code>
|<span lang="en" dir="ltr" class="mw-content-ltr">Used to identify the console in some cases like the eShop.</span>
|<span lang="en" dir="ltr" class="mw-content-ltr">Sharing this means someone could impersonate your console to Nintendo, so don't post it in a public space!</span>
|}
<div lang="en" dir="ltr" class="mw-content-ltr">
== Notes ==
</div>

<div lang="en" dir="ltr" class="mw-content-ltr">
GodMode9 does not automatically update the essential backup; to manually update it, choose a NAND image (either SysNAND, EmuNAND, or a backup on the SD card), then choose "NAND image options..." -> "Update embedded backup".
</div>

<div lang="en" dir="ltr" class="mw-content-ltr">
<code>hwcal0</code> and <code>hwcal1</code> were not included in <code>essential.exefs</code> before GodMode9 v1.3.0 ({{Start date and age|2017|08|07}}).
</div>
[[Category:Nintendo 3DS information{{#translation:}}]]

3DS:System files/ja - Revision history

Yaakiyu.jp: Created page with "以下は重要なシステムファイルやその他のデータの一覧です。"

Yaakiyu.jp: Created page with "3DS:システムファイル"