Sim locks by operator
i don’t know how to unlock
iPhone 13 Pro Max
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i don’t know how to unlock
iPhone 13 Pro Max
Your iPhone is SIM locked or your carriers SIM-card is not supported.
You must contact the Carrier your iPhone was purchased from and ask them to unlock it. If you have a new Carrier now and you know your iPhone is not SIM locked, then you need to contact them.
You can find more useful information here:
How to unlock your iPhone for use with a different carrier - Apple Support
Your iPhone is SIM locked or your carriers SIM-card is not supported.
You must contact the Carrier your iPhone was purchased from and ask them to unlock it. If you have a new Carrier now and you know your iPhone is not SIM locked, then you need to contact them.
You can find more useful information here:
How to unlock your iPhone for use with a different carrier - Apple Support
Sim locks by operator