So I'm curious about this. I've been wanting to do this too but wasn't sure how. Did you by chance have any emulators on your hacked switch when you did this? I have RetroArch on my hacked switch and a Gameboy emulator. But those aren't installed directly to my home screen. I was curious if you had anything like that on yours when you did the data transfer. If not then I probably shouldn't risk this but I am curious overall.