My husband and I are on the same t-mobile plan. I chose a 6 plus and he chose a 6 when we switched from verizon. My husband is lazy about using his reading glasses, and I am just in the mood for a change so we decided to switch phones. I would like to do this myself, I am moderately tech literate. I have a retina Macbook Pro 13 inch 2015, but my husband doesn't have a profile on it for a whole other complicated set of reasons so I don't know how to do a real backup of his phone, although I believe it is in the cloud? He in particular wants to turn the 6 plus on and have everything be the same. Any advise would be appreciated so that I don't lose anything, especially of his as he is not at all techy and averse to change in general beyond the physical size. Thanks!