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The '''Japanese DSi Development Kit''' is a development kit that was used for development of Nintendo DS or DSi software. This unit has many differences compared to a Nintendo DSi retail unit.
The '''Japanese DSi Development Kit''', formely known as '''CPU-X4''' is a prototype that was used for development of Nintendo DS or DSi software. This unit is completely different from a retail unit.
==First appearance==
==Discovery==
The development unit first appeard on December 17th, 2018 when a user by the name of Trash_Bandatcoot started a conversation with a user by the name of ProtonX on NintendoAge. Trash_Bandatcoot asked about any DSi development units. ProtonX used to own 2 “Panda” DSi’s, but has sold them off. After that comment, ProtonX has shared the first images, showcasing a Nintendo DSi Development Unit.
The prototype was first found on December 18th 2018 when a user by the name of Trash_Bandatcoot started a conversation with a user by the name of ProtonX on NintendoAge. Trash_Bandatcoot asked about any DSi development units he owns or may have owned. ProtonX replied that he had 2 Panda DSi's and at the moment a "weird looking DSi".
[[File:DSidev front.jpg|200px|thumb|left|Image of the front, turned on.]]
[[File:DSidev front.jpg|200px|thumb|left|Image of the front, turned on.]]
[[File:DSidev_back.jpg|200px|thumb|The back, with a yellow sticker translating to "For development only".]]
[[File:DSidev_back.jpg|200px|thumb|The back, with a yellow sticker translating to "For development only".]]
A day later, Trash_Bandatcoot released all the information he collected to [https://gbatemp.net/threads/first-look-at-an-unseen-nintendo-dsi-development-console.526654/ GBAtemp].
==General differences==
==General differences==
* The DSi shell has a glossy finish, similar to the back of the top screen of a Nintendo DSi XL.
* The DSi shell has a glossy finish, similar to the back of the top screen of a Nintendo DSi XL. Nintendo does this often on pre-production shells, but the overal look replicates a retail unit.
* The button prints are darker than the ones you can find on a white retail Nintendo DSi. They're black instead of grey.
* The button prints are darker than the ones you can find on a white retail Nintendo DSi. They're black instead of grey.
* There are no prints for '''POWER''', '''START''', '''SELECT''', or any of the icons for "on", "charging" or "wireless connections".
* There are no prints for '''POWER''', '''START''', '''SELECT''', or any of the icons for "on", "charging" or "wireless connections".
* There are no prints on the back, only a yellow sticker that says "Only for development" (as seen on the image above).
* There are no prints on the back, only a yellow sticker that says "Only for development" (as seen on the image above).
* The DSi boots to a different kind of menu, rather than a regular System Menu.
* The DSi boots to a different kind of menu, rather than a regular System Menu. All they used for this one were cartridges.
==Unit settings==
==Unit settings==
All of these settings can be found on a retail Nintendo DSi under System Settings.
All of these settings can be found on a retail Nintendo DSi under System Settings.
* Language - Changes the language, despite there being only 1 language on the console.
*Language - Changes the language, despite there being only 1 language on the console.
* Set Time & Date - Allows you to change the time & date of the unit.
* Set Time & Date - Allows you to change the time & date of the unit.
* Change User Data - Allows you to change user data with examples being name, birthday, personal message, ect.
* Change User Data - Allows you to change user data with examples being name, birthday, personal message, ect.
==Board revision==
==Board revision==
On December 18th, 2018, ProtonX has released images of the board, which might be a later revision.
On December 18th 2018, ProtonX released photos from the inside, confirming this was a prototype.
* There is no sticker on the board. Instead, Nintendo used permanent marker with '''A-2''' written on it.
* The board has '''CPU-X4''' writen on it. A retail Nintendo DSi has '''CPU-01''' writen on it. This is enough to confirm that this is a prototype, noted by '''Razor83''':<blockquote>''Actually Ninty always uses '''X''' to denote prototype motherboard revisions, so '''X4''' means its the fourth prototype revision. When the motherboard is finished and final/retail they change it to '''01'''.''</blockquote>
{| class="wikitable"
{|style="margin: 0 auto;"
|
| [[File:Board1.jpg|200px|center]]
[[File:Board1.jpg|200px]]
| [[File:Board2.jpg|200px|center]]
| [[File:Board3.jpg|200px|center]]
[[File:Board2.jpg|200px]]
| [[File:BatteryShell.jpg|200px|center]]
[[File:Board3.jpg|200px]]
[[File:BatteryShell.jpg|200px|thumb|left|Battery shell, disassembled.]]
|}
|}
== Trading ==
== Trading ==
Somewhere around May 2019, the console was traded off for $750 to an unknown seller on NintendoAge. ProtonX replied that he did not want to reveal the name of the seller, “unless he wants to be revealed”. There are some speculations that the seller may have looked at the GBAtemp post, or the RGDWiki article. However, a NAND dump is now very unlikely.
Somewhere around May 2019, the console was traded off for $750 to an unknown seller on NintendoAge. ProtonX replied that he did not want to reveal the name of the seller, “unless he wants to be revealed”. Ever since then, more people started to talk about this unit, meaning that the unit is now worth a lot more.
==Notes==
==Notes==
* The Nintendo DSi devunit did not come with a cartridge or SD Card, said ProtonX.
* The prototype did not come with a special cartridge or SD Card, said ProtonX.
* When you insert a cartridge into Slot-1, it will boot up regularly, without Health & Safety screen.
* When you insert a cartridge into Slot-1, it will boot up regularly, without Health & Safety screen. However, it's unknown if this unit even has TWL-support at all.
* This is what ProtonX had to say when talking about a NAND dump: <blockquote>Yeah, I'm unlikely to do a NAND dump, as I've never been part of the missing scene. However, I did collect lots of development equipment at one point (I've got Wii U kits, gba, DS, 3DS) which is where I got this.</blockquote>
* This is what ProtonX had to say when talking about a NAND dump: <blockquote>''Yeah, I'm unlikely to do a NAND dump, as I've never been part of the missing scene. However, I did collect lots of development equipment at one point (I've got Wii U kits, GBA, DS, 3DS) which is where I got this.''</blockquote>
* ProtonX said the battery that came with the Nintendo DSi devunit was dead, so it was replaced with a retail battery.
* The battery that came with the unit was dead, so it had to be replaced with a retail one.
[[Category:DSi]]
[[Category:DSi]]
