If you or the original owner purchased your iPhone from O2 after 1 August 2018, it should be unlocked already. Should you find you still can’t use another SIM with it, contact the company and ...

If you're using a SIM card from another carrier, remove it from your phone after your carrier confirms that your iPhone is ...

The SIM unlock code they developed is divided into ... In order to do a permanent unlock solution (like on the first generation iPhone), they’d need to analyze the actual bootrom code.

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 ...