How hard would it be to upgrade the CPU and internal storage of a 3DS? I know it would be near impossible to do CPU, but what blocks someone from doing it? As for the internal storage, this would most likely be easier to accomplish. Would it be as simple as swapping storage chips, de-encrypting on the old one (if needed), and re-encrypting on the new storage chip? It probably isn't that simple, and if it isn't, what stops that from being possible?