Unlocking your iPhone means that you can use it with different carriers.
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 apple iPhone SE, use these steps.
Contact your carrier
Only your carrier can unlock your iPhone. Contact your carrier and request an unlock. Your account might need to meet the requirements for unlocking. After you submit the request, it might take a few days to complete. Contact your carrier to check the status of your unlock request.
After your carrier confirms that they unlocked your iPhone, follow the steps below.
If you have a SIM card from a carrier other than your current carrier
Use these steps to finish unlocking your iPhone:
Remove your SIM card.
Insert the new SIM card. Your device will activate.
If you don’t have another SIM card to use
Use these steps to finish unlocking your iPhone:
Back up your iPhone.
After you make a backup, erase your iPhone.
Restore your iPhone from the backup you just made.
Get help
You might see this message on your computer or on your iPhone: “The SIM card inserted in this iPhone does not appear to be supported. Only compatible SIM cards from a supported carrier may be used to activate iPhone. Please insert the SIM card that came with your iPhone or visit a supported carrier store.”
If you see this message on your device with iOS 14, use these steps:
Go to Settings > General, and tap About.
Under Carrier Lock, you should see a message that says “No SIM restrictions.” If you don’t see that message, contact your carrier.
If your device is on iOS 13 or earlier, use these steps:
Contact your carrier to make sure that they applied the unlock in their system.
Restore your iPhone to factory settings.
Restore your iPhone from a backup.