How Do I Activate T Mobile Sim Card. Complete the onscreen instructions on both the computer and the iPhone until device activation is complete. Update your device software to the latest version.

I received a T-Mobile SIM with my phone order. How do I activate my new sim card. For ATT Wireless make sure the eSIM is on an active plan then download it over Wi-Fi.
Go to your device settings.
A device compatible with the Sprint Network a SIM card. To find your phones serial number dial 06 and then send the call. If your new SIM card is RICA registered the SIM card will automatically be activated when you insert the SIM card in your. The IMEI can typically be found on the back of your device after removing the case and the SIM card number is usually found on the package of the card.

