If you don't have another SIM card, you can use these steps to finish unlocking your smartphone: Utilize your Apple ID to ...

You can sometimes get a carrier to unlock an iPhone by calling them. You could also try a third-party unlocking service such as: Doctor SIM, promises to refund you if the unlock is unsuccessful.

SIM locks are used to ensure subscribers finish their service contracts. If the contract period is over, the phone may be unlocked by entering a code from the carrier. Apple's iPhone brought the ...