Forest of Illusion on X: "We've preserved a prototype of the Nintendo DS firmware! It was recovered from an X4 prototype unit and the menu notes it as being ver. 40820D. The
Nintendo DSi system software - Wikipedia
Unexpected 3DS update breaks many common homebrew hacking methods | Ars Technica
Nintendo 3DS system software - Wikipedia
Nintendo DS Firmware 'Prototype' Reveals System's Unique Boot Up Sound Effect | Nintendo Life
Forest of Illusion on X: "We've preserved a prototype version of the Nintendo DS Lite's firmware! The unit is an X2B revision and was used within the Foxconn factory for an unknown
System Update 8.1.0-19 Now Available on 3DS | Nintendo Life
Nintendo 3DS 11.6.0-39 released, Does SKY3DS+ Or homebrew exploits works on it? | SKY3DS LATEST UPDATE
I just bought another 3DS, and this one is still on firmware version 1.1.0! : r/3DS
Exploring The World Of Nintendo 3DS Homebrew | Hackaday
3DS 9.9.0-26U Firmware Update Now Available; Now Even More Stable
The Nintendo 3DS Has Received Its First Firmware Update In Nearly A Year - GameSpot
Nintendo's latest 3DS firmware update detects pirated copies of games | The GoNintendo Archives | GoNintendo
Nintendo DS Firmware (Japan) (Prototype) (ver. 040615) : Nintendo : Free Download, Borrow, and Streaming : Internet Archive