According to system menu there is an update beyond 1.3U available. I'm certainly not going to be the first to try it.
There were comments posted on
this video stating that the AK2i was tested with 1.4U and is still working.
Idk how credible the user is, so i'm going to wait for the official word.
Let's cross our fingers folks
Edit: well from this quote, this user was running on 1.4u
QUOTE(F34R @ Apr 16 2009, 04:01 AM) AW, see if I have this right, because using the newest proper 1.4.1, DSi firmware 1.4u, AK2i:
I have the newest loader you linked to for ak/ak2i put in the _aio/ak2loader/ folder, file still named ak2loader.nds
When I try and start a game, any game, the Loading word turns blue to green, and just sits there, seemingly locked up.
What did I miss? The card is freshly formatted with the SD formatter app. Moonshell is working fine, etc.