What do I have to do to use a new HDD from a PS4 in my existing PS4? I ask because I think my HDD has an issue and I was just gonna swap out the HDDs and be on my way. I tried this but it kept saying to insert a USB drive with firmware 1.5 or later. I did this and kept getting an error message saying that the update couldn't be used. I now realize that I probably needed the full 800+mb OS on the USB drive but I'm not sure. Can I just swap HDDs and try to use the full OS on the USB drive and have it work, or are these HDDS "tied" to THAT individual PS4? Thanks to whoever can help me out.