If you follow my instructions from post #22 by the word, it should work. It did for me and, appearantly, for a couple of other users.
If the game crashes on restart, you might want to make sure you have set the "Reset/Startup entry point" to "Start cartridge directly".
If that doesn't work, try moving the files BIOSNDS7.ROM, BIOSNDS9.ROM and FIRMWARE.BIN to a seperate folder. For most occasions and purposes, No$ doesn't need those files anymore, anyway.
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No$GBA Quick FAQ:
Q1: Savegame doesn't load.
A: Set correct save type. Look
here, divide by 8!
Q2: "Cannot Read Data" error
A: See above!
Q3: Snapshots?
A: Only work for GBA games.
Q4: NDS linking, NDS with GBA slot, Picto-Chat, trading, ...
A: Not yet available.
Q5: When do we get a new version?
A: We don't know. Martin won't tell.
Q6: Donation down?
A: Yes, and we can't do anything about it either.
Q7: Game stops without appearent cause.
A: Turn the Sound option on.
Q8: No$Zoomer fixes don't work.
A: They do only with 2.6a.