2 Games not working?

For some strange reason, Tiger Woods 08 & DK: Jungle Climber do not work. When booted it says "Unable to read, please turn off and reload..." (these are .nds)Does anyone else encounter this problem?Thanks in advance.

Which flash cart? And you do of course have the latest firmware right?

yeh mine arent working also. dk jungle climber, tiger woods 2008, wild west, drawn to life. I am using an R4.... anyone know y?

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