As a new customer, you must pick a phone plan and set up your Metro by T-Mobile account. After you complete that and receive your phone and SIM card, use the activation website to activate your ...

insert it into your mobile and restart the device. If network bars appear, the SIM is active. Alternatively, dial 121 to check the activation status. How to Keep Airtel SIM Active? To prevent ...

If this happens with you, the solution is to go for a replacement SIM and check the 4G SIM activation process. This is a simple process that can be done within a few easy steps. This same ...