Unlock carrier
I what you unlock my carrier lock but it says sim locked what do I do
iPhone XR
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Top-ranking reply
In this case the only way to remove a carrier lock is to refer to the original carrier of the iPhone. So you should contact them. If you don't know who the original carrier is, you should ask to the person or business that sold you the device.
You can also read How to unlock your iPhone for use with a different carrier - Apple Support For more information.