I need help with my locked device

Hi there @Abigale2022, we understand the importance of getting your device unlocked. 

Since you bought this device from a third party, we highly recommend you reach out to the original seller and have them request the device unlock on your behalf. 

Make sure your device meets our unlock requirements before submitting a request online. If your device doesn't meet all the requirements, it can't be unlocked. Additionally, if too many requests are submitted in a short period of time, then you may be blocked from requesting an unlock for 30 days.

Please let us know if you have any other questions. 

Dylan, AT&T Community Specialist

Use the unlock portal: https://att.com/deviceunlock

Put the request in as a non customer by answering “no” to the att number question. All you need is the imei. 

Optimistically, the phone may be paid off an eligible to be unlocked with the link provided by sandblaster. If the unlock is denied, there is absolutely nothing you can do and AT&t will not help you. At which point you're only hope is to get your money back from the original seller.

iPhones will indicate in settings whether or not they are unlocked. The person selling it would have known this. Unfortunately I'm going to bet that you have been scammed.

Info:

You might see this message on your computer or iPhone: "The SIM card inserted in this iPhone does not appear to be supported. Only compatible SIM cards from a supported carrier may be used to activate iPhone. Please insert the SIM card that came with your iPhone or visit a supported carrier store."

If you see this message on your device with iOS 14 and later, use these steps:

1. Go to Settings > General and tap About.
2. Under Carrier Lock, you should see a message that says, "No SIM restrictions."