do not update!
Nintendo has just blocked flashards on the DSi yet again with the release of firmware update 1.4.1 today. However, it does not seem like all flashcards have been affected.
Nintendo's system menu update page says the new firmware provides "behind-the-scenes improvements", but as expected that is really just PR speak for "no more homebrew for you". This is the first incremental update for the DSi in over a year, yet it is not believed there are any new features for the DSi outside of flashcards being blocked.
Several GBAtemp users have updated and tested their flashcards and ended up with a black screen that tells them to turn off the power. The Supercard DSTwo and Acekard 2i are confirmed to be blocked, but resident AKAIO developer and flashcard wizz Normmatt says the EZ-Flash Vi and iSmartDS have not been blocked. We will keep a list of confirmed flashcards.
Thanks to SickPuppy for the original tip-off on the forums about this update.
For now, steer clear of the update if you want to keep using your flashcard!
Nintendo said:Nintendo DSi Menu Ver 1.4.1U
+ This update provides behind-the-scenes improvements to system performance.
Below is a list of confirmed blocked/unblocked flashcards as reported by GBAtemp members.
Update: Nintendo has also updated the Wii's firmware to remove homebrew. The firmware is still listed as 4.3, but if you update it will remove all homebrew. So do not update your Wii or DSi for now. It appears Nintendo have launched a two-pronged attack against homebrew on their devices.
NintendoImprovements to Wii Menu 4.3
+ An update that provides behind-the-scenes improvements to Wii Menu 4.3.