Unlock iPhone carrier unavailable

I have an old iPhone 6s which I reset and sold on eBay. The buyer, however, wants to unlock it for use with a different carrier and it seems to be SIM locked. However, because I erased the phone before selling it, it now says that the carrier is "unavailable." I'm pretty sure what the carrier was, but is there any way to unlock without knowing the carrier?

iPhone 6s

Posted on Dec 14, 2022 08:41 PM

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Unlock iPhone carrier unavailable

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