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FC-formula

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Teh Nethacker

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Does anyone knows how the Nintendo DS checks out if the entered Friend-Code is correct? I mean it doesn't connect to the internet, so there must be a formula to check if the code's correct.
 
When you input the code in the first place, it just sits there; thus, you could probably put anything in there.

The next time you go on Wi-Fi however, the game searches for the other DS (the one whose FC you put it) and if they have your FC as well, then the link is secured and validated.

Of course, this is all just me guessing on old memories (my DS wi-fi no longer works. Same with my Wii's.)
 
This kind of question would be better suited to the Tech Help section.
 
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