Hi All. 1. How can I transfer files and so one, between two iMac's an old mid 2011 27" iMac where the GPU is dead, so blue screen and can't get into the desktop, to a new late 2015 27" iMac ?? 2. I know how to open the old mid 2011, but can see it's harder on a late 2015, my question is - is the late 2015 magnetic closed like the mid 2011 or do I need some "rubber closing" to close "seal" on the late 2015, if i open it ?