So the problem was the gpu itself what a wired thing
now i run into another problem
Now you go into the "Hiya CFW 1.3.1" folder, then into the subfolder "for 2GB (or lower) SD card (SDNAND)" and carry your console ID into the "console_id.txt" file.
Then you take the "boot .nds "and the" console_id.txt "file and copy it to your SD card from the DSi and then put it in the console, start it, run sudoku and after you are asked to press start, should start" twlnf " ,
There you do a NAND backup, you have to press "A".
Now it takes a while for the dump to finish.
Meanwhile, we can start the "NUSDownloader_v19", do not forget to check "Decrypted Contents (* .app)",
then go to:
Database>
Then you copied "00000002.app" from the "512" folder into the "for PC" folder.
Now the DSi should already be finished with the backup.
This asks you now if you want to mount the backup, as you press "YES (A)", then press "Start" and then "R", now the DSi should unpack the NAND backup,
if that is done then ( It should then finally "walk returned 0" stand), then take the SD card from the DSi and pushes it into the PC and copied your "nand.bin" in the "for PC" folder
Then you go to the "dump" folder on your SD card and move all files from there to the root directory of your SD card. (Of these files your DSi will start,
in this section you tell us to download something from nusdownloader but ain't telling us what XD
can you please tell us