OK!!! GOT IT!!! Like i guessed above i had to get newer firmware for my M3 real ds card. I couldnt find the newest version v4.4a E52 because all the original domains were down, or atleast i couldnt reach them, but i got the m3 sakura from this forum where it works now . Im happy :)
I also tried it with different micro SD cards so i dont think they are corrupted. From what i read i think its the anti-piracy checking the games have, but its weird that not everyone seems to be having this error, because otherwhise the rom wouldnt been uploaded/downloaded so frequently i...
I have recently found my old DSlite and my M3 card. I got an ROM of HG but when i save the infamous Blue screen with the error "Error saving data. The backup memory has failed. The game may be played but it is impossible to save. Please turn off the power." comes up. Im a noob in this subject...