How do i upgrade the firmware of my m3 ds real?

Hey i have just bought a M3 ds real and im having a problem with playing Ultimate Mortal Kombat (as soon as i load up the game the sreen flashes white and then just stays black) so i want to ugrade the firmware and i have no idea how hehe. Can someone help me please?

Go to http://www.linfoxdomain.com/nintendo/ds/ then look for M3 Real and download the latest firmware. Then just put all of those files onto your MicroSD and overwrite the previous firmwares files.

Ok thanks but how do i overwrite the previous files?

Once you drag or put all of the new firmware files onto your MicroSD, it should ask you if you want to overwrite files with the same name. Click Yes To All. You need to do this or else it won't upgrade your firmware.

Thanks heaps the firmware upgrade worked, but Ultimate Mortal Kombat still won't. So im guessing that the rom just isn't compatible with my m3 real?

Yeah it probably isn't. But M3 Real has a 96% commercial rom compatibility rate so other games will do fine.