Ill explain what i did:Not sure how you managed to brick your 3DS. Probably wasn't related to TWLSaveTool. Most folks use it in emunand, though it should function fine in both.
Turned on the 3DS
Installed the .cia on emuNAND
Backed up a save of AC:WW
Closed the App
Edited the save
when i tried to turn on the 3ds(Well force turn off since for some reason the 3DS didnt shut down), its on blackscreen, no NAND backup(lost in a system restore)
I made sure it was on SDCard, im very cautious when installing apps on SD or NAND.Whichever nand it's tickets are installed to the actual app should be installed to the sd card.
Why do people install unsigned stuff to nand...