Yaakiyu.jp: Created page with "ニンテンドー3DSカメラ"

2026-07-29T23:17:54Z

Created page with "ニンテンドー3DSカメラ"

← Older revision		Revision as of 23:17, 29 July 2026
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	*~~<span lang="en" dir="ltr" class="mw-content-ltr">Nintendo 3DS Camera</span>~~		*ニンテンドー3DSカメラ
	*安全に使用するために		*安全に使用するために
	*<span lang="en" dir="ltr" class="mw-content-ltr">DS Download Play</span>		*<span lang="en" dir="ltr" class="mw-content-ltr">DS Download Play</span>

Yaakiyu.jp: Created page with "安全に使用するために"

2026-07-29T23:15:18Z

Created page with "安全に使用するために"

← Older revision		Revision as of 23:15, 29 July 2026
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	*<span lang="en" dir="ltr" class="mw-content-ltr">Nintendo 3DS Camera</span>		*<span lang="en" dir="ltr" class="mw-content-ltr">Nintendo 3DS Camera</span>
	*~~<span lang="en" dir="ltr" class="mw-content-ltr">Health & Safety Information</span>~~		*安全に使用するために
	*<span lang="en" dir="ltr" class="mw-content-ltr">DS Download Play</span>		*<span lang="en" dir="ltr" class="mw-content-ltr">DS Download Play</span>
	*<span lang="en" dir="ltr" class="mw-content-ltr">DS Internet Settings</span>		*<span lang="en" dir="ltr" class="mw-content-ltr">DS Internet Settings</span>

Yaakiyu.jp: Created page with "2026年6月時点で、''Nintendo of America''はNew 2DS XLのみ修理を受け付けており、 ''日本の任天堂''と''任天堂ヨーロッパ''はどのモデルの修理も受け付けていません。"

2026-07-29T23:13:16Z

Created page with "2026年6月時点で、''Nintendo of America''はNew 2DS XLのみ修理を受け付けており、 ''日本の任天堂''と''任天堂ヨーロッパ''はどのモデルの修理も受け付けていません。"

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Removing custom firmware (CFW) from your 3DS or 2DS is not recommended for most cases.
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==The Short Version==
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<span lang="en" dir="ltr" class="mw-content-ltr">[[3DS:Luma3DS|Luma3DS]] is probably your custom firmware. In this case:</span>
*<span lang="en" dir="ltr" class="mw-content-ltr">It probably isn't why your game is broken.</span>
*<span lang="en" dir="ltr" class="mw-content-ltr">It probably isn't why some part of your console is broken.</span>
*<span lang="en" dir="ltr" class="mw-content-ltr">It will not permanently break your console: The worst that would happen is that Luma3DS needs updating (that's the {{code|boot.firm}} file on your SD card).</span>
*<span lang="en" dir="ltr" class="mw-content-ltr">It will not delete all your saves; in fact, it provides tools to back them up, which makes them safer than stock firmware could.</span>
*<span lang="en" dir="ltr" class="mw-content-ltr">If you are selling the console, it might be a good idea to remove it then, but you should check first.</span>
*<span lang="en" dir="ltr" class="mw-content-ltr">If you are sending in the console to Nintendo for repair, it might also be a good idea.</span>

__TOC__
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==Fixing a broken game==
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Nearly all cases where a game doesn't work are not due to CFW alone.
Most commonly, a corrupt game file or a corrupt save file is the cause.
Removing CFW would make it harder to diagnose a game's problems. Meanwhile, Luma3DS (the CFW) exposes more details about why a game doesn't work, allowing for more experienced people to figure the problem out, while stock firmware would only show a generic "An error has occurred" screen.
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Most of the rest of the cases are due to a plugin or mod that is outdated or for the wrong version of the game. In these cases, removing the offending plugin or mod would fix the game.
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There are a few edge cases where games can break due to CFW settings. In particular, a few games crash on New 3DS if the 804MHz clock speed and the L2 cache are enabled. Usually, these can be worked around by temporarily disabling the setting that is breaking the game.
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==Fixing broken system applications==
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Sometimes a part of the system software might stop working for some reason. Assuming the system was not updated to a point where Luma3DS is currently not compatible, keeping CFW would mean you can fix the corruption, usually with a [[3DS:CTRTransfer|CTRTransfer]], while removing the CFW will probably keep the system in a broken state with no way to fix it without [[3DS:ntrboot|ntrboot]].
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==Concerns about bricks==
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CFW has become exceptionally safe to use on the 3DS over the years, both during and after setup: It is nearly impossible to brick your console on accident. [[3DS:GodMode9|GodMode9]], the most common tool for interacting with the 3DS NAND, requires unlocking the write protection with a button combination when you are about to do something that could cause damage. The button combination requires deliberate inputs and is impossible to do by accident.
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Moreover, GodMode9 contains integrated repair features and allows you to run useful tools for troubleshooting and repairing your console software: If your console is already "bricked", removing CFW will prevent you using them to find and resolve the console's possible problems.
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Nintendo no longer releases updates for the 3DS. The last update was released in May 2023, shortly after the shutdown of the eShop.
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The last update to break Luma3DS was 11.14.0-46, released in November 2020. The last one before that was 11.8.0-41, released in July 2018.
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==Concerns about data loss==
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As detailed in the above section, CFW has very few risks associated with it, either when setting it up or using it. If you do not delete random files or titles using GodMode9, FBI, or similar tools, you are not likely to lose things such as game saves which are on the SD card.
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CFW provides access to tools to make your own backups of your games, their saves, and the system's internal storage (the NAND). These allow for better backups than what Nintendo normally allows. For example, if your console is ever lost or broken, everything can be manually migrated to a replacement console. SD card data can be migrated if you have the {{Code|movable.sed}} from the original console, which is inside the {{Code|essential.exefs}} made during setup. NAND data (e.g. Friend List, Mii Maker, StreetPass Mii Plaza) can be transferred from a NAND backup.
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==Concerns about bans==
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Nintendo has shut down online play and services for the 3DS in April 2024. There is be nothing to be banned from anymore.
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In the past, there was one well-documented ban wave: when Pokémon Sun and Moon leaked online, some people downloaded it and used its online services before release. Bans were given to those who had done so.
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==Selling console==
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This is often considered the only real reason to remove custom firmware. A buyer may not be willing to accept any kind of homebrew, or the platform may remove listings for modified consoles. Notably, ''eBay'' removes the listing if there is a mention of homebrew in it.
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<div lang="en" dir="ltr" class="mw-content-ltr">
Sometimes, a workaround to prevent removal is to not mention it, but include telltale signs of custom firmware in pictures (e.g. the "Sys" text in System Settings). If you may not be willing to risk it, [[3dsguide:uninstall-cfw|removing the CFW]] is the best option.
In this case, you should be careful to not leave remnants that can cause problems on stock, including modified system titles. In particular, make sure the following components work when the console is booted with stock firmware:
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*<span lang="en" dir="ltr" class="mw-content-ltr">Nintendo 3DS Camera</span>
*<span lang="en" dir="ltr" class="mw-content-ltr">Health & Safety Information</span>
*<span lang="en" dir="ltr" class="mw-content-ltr">DS Download Play</span>
*<span lang="en" dir="ltr" class="mw-content-ltr">DS Internet Settings</span>
*<span lang="en" dir="ltr" class="mw-content-ltr">DS Profile Settings (launching and attempting to enter in a name)</span>

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==Sending console in for repairs==
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2026年6月時点で、''Nintendo of America''はNew 2DS XLのみ修理を受け付けており、 ''日本の任天堂''と''任天堂ヨーロッパ''はどのモデルの修理も受け付けていません。

<div lang="en" dir="ltr" class="mw-content-ltr">
Nintendo might not like receiving a console with [[3DS:boot9strap|boot9strap]] on it, so removing custom firmware temporarily would be a good idea. In this case you should make backups of the NAND, as Nintendo does not repair consoles, they replace them instead.
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[[Category:Nintendo 3DS{{#translation:}}]]

3DS:Why not to remove custom firmware/ja - Revision history

Yaakiyu.jp: Created page with "ニンテンドー3DSカメラ"

Yaakiyu.jp: Created page with "安全に使用するために"

Yaakiyu.jp: Created page with "2026年6月時点で、''Nintendo of America''はNew 2DS XLのみ修理を受け付けており、 ''日本の任天堂''と''任天堂ヨーロッパ''はどのモデルの修理も受け付けていません。"