You know how when you renew your mobile service, they remove your sim card, put it in your new phone and enter into their system your new type of phone for their records? So what happens to the old phone where they took out the sim card from? I want to sell my old phone but don't know if I have to "unlock" it. I'm not sure what unlocking is. Will it sell if it's locked?
Do I need to unlock my phone?
- Thread starter boayunho
- Start date