How to check if your device is SIM-locked and cannot use another carrier’s SIM card Home FAQs L How to check if your device is SIM-locked and cannot use another carrier’s SIM card 🅰️【How to check on iPhone】Go to Settings ➡ General ➡ About ➡ Carrier LockIf the Carrier Lock section shows “No SIM restrictions”, your device is unlocked and can be used with SIM cards from other carriers. 永久連結