how can I take my SIM card out of my phone and activate it in another device?
how can I take my SIM card out of my phone and activate it in another device?
iPhone XR
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Yank the SIM and insert it into the other device, most commonly,
If your carrier blocks this SIM swapping and some do, you will need to discuss this with your carrier.
If the target device is carrier-locked, the SIM will have to match the carrier holding the lock.
More pragmatically: Remove or switch the SIM card in your iPhone or iPad - Apple Support