I'm seeing a lot of videos and things online about wireless charging for iPhone 4s and everything I see is with a special case. I also saw a video of a guy who actually did it without the case but but he had to modify the back plate some or a different back plate but all i want to do is unscrew and remove the back plate place a component in and attach it and place the back plate back on and ready to go. Is this possible? and if so whats the best conductive circuit to use?