Provision can be defined as the act of providing or supplying something. In the case of your SIM card, your sim is not provisioned if it is no longer able to share information between your cellphone and your provider. The "SIM not provisioned" error should only affect users who need to register a new SIM card.

Why does my phone say SIM not provisioned?

When your Android or iOS device says your SIM isn't provisioned, there's a problem preventing it from connecting to the SIM card's carrier network. ... The carrier network has blocked your SIM card. The carrier network is experiencing downtime, particularly with SIM card activation.

How do I activate my SIM card?

Usually, you'll have to enter the phone number or SIM card number. After that, you may get a message with further instructions. And some SIM's take up to 24 hours to activate, though this is rare. Typically, to activate your SIM card you just need to insert the correct sized SIM into your phone.