I have a spare 3DS at a hackable firmware (I believe it's about 6.1.x-ish) and a 3DS XL on newest firmware and I have a few questions about installing legit CIAs. If I installed legit CIAs on the hackable 3DS, update it, and system transfer my XL to it then back (without making a NNID on the hackable 3DS), will my XL keep these CIAs as playable? Will they be in my eShop history? Could I do this again to another DS after the first transfer, or once I update I can't go back? Any good guides to do any of this stuff I asked? Thank you!