My friend has this o3ds on version 9.9.0 and he didnt know 3ds hacking was a thing. So we ordered a powersaver in order to access homebrew and do the whole a9lh installation guide(the powersaver hasnt arrived yet fyi, should arrive in the next days). So then i tell another friend of mine that we could possibly downgrade our n3ds systems that are on the version 11.1 with the help of o3ds friend. My question is, would it be possible to downgrade both n3ds system without having to wait a week to be able to downgrade the second 3ds? What exactly is the 1 week lock thing? Tyvm in advance