my NSdoesnt boot and I cant flash another ROM because my NS cant mount SD anymore, so I tryed to restore it back to stock and flash the .imgs with fastboot. Boot.img, recovery.img, userdata.img, without problems, but the system.img gives me the message "write failed" or something. Tryed it multiple times with the Gingerbread system.img, and ICS system.img, same problem.
I can boot into recovery, but the phone doesnt recognize the SD and also the system partition.
Sorry for my english.