@AN881
The first thing you should check is your account status by either logging into self-serve or dialing *611 to see the status.
If it is active, try rebooting your device or taking out sim card and reinserting it.
If it is not active, make the required payment to restore service. This can be done by any saved payment cards on the account or by purchasing a voucher available at many retail locations.
You can also troubleshoot whether it's a device versus account issue by trying the Public Mobile SIM card in another device, and also by trying another working SIM card in your device.
