How to unlock sim carrier

It is your carrier that unlocks the SIM card on your phone. Contact your carrier to ask them to remove the lock. Only the carrier can remove the SIM lock on your phone.

Depending on your original agreement with your carrier, they may be under no obligation to unlock your phone.

Your carrier is the company that you pay each month for your phone service.

If you do not know who your carrier might be, you probably bought a used phone from another person. You would need to contact that person to find out who the carrier is.