Hi All, I just ordered a 8 Plus and enrolled in Apple Upgrade Program. My question is when I receive my iPhone do I just swap SIM?( I currently have 7 Plus unlocked on Verizon). I had issues going from 6 Plus to 7 Plus with activation until I realized I could just put my old SIM into new phone and all was cool. Just wondering if I could do the same or is the SIM different?