Now u see why i need a phone that is or was a locked sprint phone I have found only one that said locked to sprint and then in the fine print it said "it also works on t-mobile I don't know enough to get a used phone i may have to go to sprint and pay out the ---- and get their phone.
I found these iphone 7's that will not work on the sprint network
AT&T Unlocked iPhone 7+ will not work with Sprint
Apple released two version of the iPhone 7 and 7 Plus
The first version is a model that support both CDMA and GSM (Multi-Mode) ( Supported By Sprint ).
The second version is a model that only support GSM (Single Mode) ( Not Supported By Sprint ).
the iPhone 7 from T-Mobile and AT&T aren't eligible to work with Sprint.