That SIM card is tied to your son's phone number and account. You'll need a new SIM card that can be tied to your own account. SIM cards are cheap, about $10.00 or less.When my son give me the 8 Plus and he leave the Sim Card in it can I use it or will I need to get a new one?
Will you also share his phone number? If you are, then the existing SIM card can be used. If you’ll have your own phone number, separate from his, you’ll need a new SIM card.He is going to add me to his account and he is going to pay for it.