iPhone
This device might be restricted to the original
carrier and/or have certain capabilities limited.
Contact your provider for more info.
what that mean ?
iPhone 12 Pro, iOS 15
Question marked as
Check this article about it:
...
Your iPhone might be locked to your carrier. Unlocking your iPhone means that you can use it with different carriers. To contact your carrier and unlock your iPhone, use these steps.
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copied from: How to unlock your iPhone for use with a different carrier - Apple Support
