iPhone bought in Poland is not working in the US. Says device is not compatible.
Hello. I have a problem. I live in the USA now and i wanted to buy a SIM card (Verizon, att, t-mobile) but it says that my device is not compatible, imei is not working, so what should I do? I am not able to use my Polish card here. I bought my iPhone in Poland.
[Re-Titled by Moderator]
iPhone 13, iOS 15