A while ago I let my sister use my 3DS, and during that time she named herself on TWL_FIRM with her name obviously. I want to change the name but there is no option to do so, only message and birthday. I formatted my 3DS once and the data was still there. I have a 2DS that uses A9LH + Luma If this is a noob question I apologize as I think this is a decent question. Yes I tried to use JK Save Manager, TWL_FIRM didn't appear.