iPhone 6(S)/Plus Sims card works with AT&T, not VERIZON

[Thang Le]

I bought my used iphone 6S on Daily Sale last year, worked fine with AT&T. When I switched my phone to Verizon, they said my phone did not pay off. Probably the old owner did not pay off to the store he or she bought, or something else, could mean this phone was stolen. I got stuck! How can I use it or reboot to use it with Verizon? Please help!

 

[ftaok]

You'll need to get the SIM unlocked by AT&T.

Go to their website to unlock the phone.

https://www.att.com/esupport/article.html#!/smb-wireless/KM1258553?gsi=B12d1iQ

 

[Banglazed]

Go to Settings>About>Model and tap it to get 4-5 digit model number and locate that model number @ https://www.apple.com/iphone/LTE/ which will tell you the device is not CDMA compatible, Sprint/Verizon. It just doesn't have the CDMA radios. If Verizon has LTE GSM band, the device will only work on those GSM bands.

 

[Lobwedgephil]

If your phone is listed as stolen or not paid off, you are stuck.