Desmume issues about protection

Last updated on 9 years ago
Well recently I've been playing mario and sonic at the olympic winter game, and a problem occured: Apparently due to a protection the game freezes at about halfway. Now on other forums I've seen people are surpassing this problem using an updated firmware for the DS (not emulator), but I can't find anything similar for Desmume, so if anyone ever had similar issues, please help me solve this.
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