I've got new games that don't work...

I have downloaded KH 358/2 Days, The World Ends With You and Drawn to Life - The Next Chapter.
They all don't work for some reason, and they all come up with the message "Please turn off the power and reinsert the card" or something like that.
I have an R4 and I used a 1GB SD card.
Could someone please help me?

Some have anti-piracy.
And try updating your firmware.For Kingdom Hearts.
https://www.romulation.org/forum/index.php?topic=23731.0

how do you update your firmware/ I have a dsi and an R4i card which works with most games, but some like womens murder club will not work at all :-(

Replying to #3

Look for the web address on your R4I box, that will be your frimware on that site