Activate At&t Sim Card With Old Number. Power your device off. Unlock your device if necessary.
Its possible that her SIM card may have been deactivated going that long without use. Learn how to activate new phone or SIM card and transfer personal data. Physical SIM cards Be aware that.
Follow the on-screen instructions to activate the card.
If youve recently changed your device or SIM card you may need your existing voicemail password to set up voicemail on your new device. Your SIM Card Number. Insert the activated FirstNet SIM card and then p ower the device on. And some SIMs take up to 24 hours to activate though this is rare.
