How to Fix the "SIM Not Provisioned MM 2" Error

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Problems getting your new SIM card to work? The "SIM not provisioned MM#2" error message is frustrating, but simple to fix.

The "SIM not provisioned" error occurs when your SIM card is no longer able to share information between your cellphone and your provider. This can happen when you have a new phone with a new SIM card or when you're transferring contacts to a new SIM card.
The "SIM not provisioned for voice" error means that you cannot make voice calls. This is usually caused by your line becoming disconnected from your carrier account.
You may see an "eSIM not provisioned" error if you've switched from a physical SIM card to an eSIM.