Honestly it is a friend and he is on 3ds. What he did was bought a new DSTWO and as he was installing the firmware he accidentally shut it off. Here is what he wrote me:
Hi Jim, you helped me out in the past with the acekard 2i problem I had. I just bought a DSTWO supercard for my 3DS. I accidentally pressed the update function and when I realized it was updating I turned off my 3DS without letting the card update first. Now, when I try and start the card, I get "error update, Enter and wait 3 minutes. I have tried to fix this with my DS lite and I get 2 white screens. I have tried everything, I looked at different guides around the net and nothing. Do you think it's the flash cart or the micro sd card? Anyways, if you know how to fix this can you please help me. Thanks