Hey lol @ tguellich:
You are now mentioning the auto boot feature I talked about in your updated guide but do not describe how it works.
I thought it's a known one but if not I can describe it and you can use this information in your guide.
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Preamble: The "auto boot a ROM from your M3DS Real when turning power on"-feature works but only that. It's seems not fully developed yet.
In you use it the chosen ROM starts automatically when turning on the power of your NDS. If you want to play another game you have to redo the editing process.
How it works: Easy - just copy your "boot.ini" from your SYSTEM folder to your HDD, open it and add the path to any ROM on your flash card. The ROM can be in any subfolder you just have to point at it.
At the beginning it looks like this:
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[BootType - G6DS/PASSCARD/GBA]=G6DS
[DirectRun]=
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For example if your ROMs are in a standard folder called "NDS" and you want to autoboot a ROM called "2002 - Professor Layton and the Curious Village (U)" just type in the whole path after the equal sign (without the quotes as always):
"/NDS/2002 - Professor Layton and the Curious Village (U).nds"
So in general:
"/[Foldername]/[Filename]"
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Copy the modified boot.ini back in your SYSTEM folder and voilá when you switch on you will see a new screen with the word "waiting" and the known loading bar at the bottom.
I already opened a thread to this topic some time ago with questions that have not been answered yet (any maybe never will be).
http://gbatemp.net/index.php?showtopic=67112
Here are these questions I asked in december 2007:
1. If you want to not load the file sometimes and want in the game menu, how do you do that? - Maybe hold down some buttons?
2. What parameters does the boot.ini unterstand resp. what else can you use in the boot.ini??
3. I read somewhere when you hold down a specific button (e.g.
or [Select]) the card dows something. Can I find a chart where are all the boot possibilities are listed??
4. Is it possible to store the save files in a different folder that in the NDS folder??
5. Can you use subfolders in the NDS folder to divide a larger amount of files??
I tried to make subfolders within the NDS folder BUT when you switch to one of these you can not switch back to the NDS folder.
Click in the down left corner and select a subfolder within the NDS folder it will work BUT then try to select the NDS folder itself again... it won't work!!