First, my english is very bad, so I'm sorry if I write something wrong... well, this is the problem: I have a Ez-Flash IV. I know how to use it (patch the games with the clients and create the .sav files), and my Ez-flash worked fine, no problem with the save. A little time ago I had the stupid idea of trying to use the ez-flash IV to send pokemons from gba to ds games (i used a tutorial which said that works fine for ez-flash IV), and I used a 3in1 expansion program which wrote in the NOR memory of the ez-flash IV (I don't know very well what is the NOR memory). After that nothing work and I couldn't use my ez-flash IV alone in my gba because the games didn't appear in the file manager of the ez-flash when the games where indeed in the mini-sd card (in the ez-flash appeared a lot of strange files which there were not in the sd card). After that I solved that problem erasing the NOR memory with the same 3in1 expansion program in the ds (the games came back and all seem to be fine). Now I realized that the ez-flash don't write in the sd card. For example, I play a game which I have a previous saved file and the ez-flash load that .sav (that's okay), but then when I save (the ez-flash shows the typycal square of writing) and then I load the same game I have the same saved of the previous time (like if I didn't play). It's is like the ez-flash doesn't write in the sd card. I erased some .sav files to see if It is a problem with the SRAM memory (like if I didn't put the .sav file and only the save of the last game remain) of the ez-flash, and indeed the progress of the game were saved in the memory of the ez-flash, so the problem is that the flashcard doesn't write in the sd. Do you have any idea of the problem? Sorry for the long text, I tried to explain it the best possible. Thanks in advance.