I just started to begin with DSi Emulation, using lr-LemonDS, and came to the point the tutorial ends: games will only start via the DSi-Menu, so "boot directly into rom" has to be disabled in the core-options.
Only difference: i have full access to the DSi-Roms in the /ROMS/DS-Folder from there and dont have to use prestuffed NAND-Files (would also be a fishy way imo, not the way it should work)
And this is an issue:
first of all on the official FAQ-Board it is recommended to keep this option at its default (=off/boot into rom), in special when the DSi-Bios is used.
Secondly the Retroachievements for DSi-Games only launch up when booting directly into the rom, you can see the widget, everythings fine.
Only problem: the screen keeps being white and silent.
Booting into menu works as mentioned, so the BIOS-Files are good for sure.
I can start all my games from there, but without Retroachievements Support, so i hope to find a way to boot directly into the game (as it should work :)).
I allready tinkered with further core-options, but had no luck.
If anyone has an idea it would be much appreciated.