first not a good move to erase your nand fully as it would have saved you time with the restore.
Did you ever check your flash with your original one?
Also hook up the front of the wii with the blue led and turn on your wii. I think you will not have a blue flash but the led stays blue. Most probable cause is that you are not writing properly to the nand itself and that you are suffering ground bounce.
isolate the first 2112 * 64 bytes out of your original nand dump (this is your boot1 block)
flash that to the nand and read it back from your nand.
Then compare both files. If they are equal start flashing more from your nand dump into your nand. Let me know what happens