Major problems activating iPhone 8 Plus
Hi everyone
I just bought a new-in-box sealed, (supposedly unlocked) A1864 iPhone 8 Plus from somebody on Craigslist. It had never been unwrapped.
I opened it, put in my AT&T SIM card from my iPhone 7 Plus, and I get a "SIM not supported message" and I can't get into the phone.
So I called AT&T, and got a new SIM card. Still the same problem. So I called Apple, and they said the phone is "locked" to Verizon. So I call Verizon, and they confirmed that they don't "lock" their 4G LTE phones, and the phone should work fine on AT&T. But with any SIM card except for a Verizon SIM card, the phone won't even pass the activation screen.
If I insert a Verizon SIM card, it tries to activate for a long time and then goes to the "connect to iTunes" logo. Connecting it to iTunes makes it go the the home screen for just one second, and then it immediately reverts to the "iPhone needs activation" screen.
I just paid a lot of money for this phone and have called AT&T, Verizon, and Apple tons of times! Does anyone have any ideas as to why this phone is acting so weird for me?
I have restored the iPhone with iTunes, and tried 5 different SIM cards.
iPhone 8 Plus, iOS 11.0.3