Chosen Solution
I have a 1633 that I would like to replace with a 1688. I was just wondering if there would be any complications.
Zelkalna , Logic boards are to be compatible. To see the difference of a1633-and-a1688 models click on link below. Good luck. I hope this helped you out, if so let me know by pressing the helpful button. http://roonby.com/2015/12/12/iphone-6s-m…
