lol i broke my rednand.How i can get my 64 gb again?
Resize the FAT32 partition so it takes up the entire size of the card. If I remember correctly Windows' Disk Management snap in is too stupid to see the RAW section of the SD card that the NAND dump occupies. If this is the case Partition Wizard is the program I use when I don't feel like booting GParted.
https://www.partitionwizard.com/