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Released September 16, 2016. Models A1661, A1784, and A1785. Available in 32, 128, or 256 GB configurations in Rose gold, gold, silver, black, jet black, and (Product)Red.

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Invalid SIM message when I try and put SIM card in?

I have a 7 plus I bought for a customer, but when I put their Sprint SIM card in, Sprint shows in the top left corner for a second, but then it goes to invalid SIM. What could be the cause of this issue? I’m almost certain that this is a Sprint phone, but will check later today. For now, assuming that is not the issue, what else could be the matter? Thanks for the help!

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is the phone an unlocked phone or a carrier phone

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Garrison Bates crwdns2934231:0crwdne2934231:0
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