Broken Sword Shadow of the Templars Director's cut

So I have said game on an m3 simply with latest firmware, and after I unlock the two switches at the beginning of the game it freezes. Help is much appreciated.

Are you using cheats? if so you might have too many on, or its conflicting...might be something else all together. I've had something similar with another game and it kept freezing up and I turned the cheats off and it worked fine then. Might not hurt to update your cheat.db or you could try playing it under sakura firmware, but I don't know if that works with the M3 Simply I know it does for the M3 Real.

Try backing up and reformat your MicroSD. https://www.romulation.org/forum/index.php?topic=1462.0And that you have the latest firmware, http://www.linfoxdomain.com/ds/

I have no cheats on, latest firmware, and everything. Could it just be the file or what?

Follow what I said. It's not the ROM that is the problem.