Sim blocked after update overnight

[Mommagoose]

My iPhone 7 did an automatic upgrade and now the SIM card is blocked and I can’t use my phone 

[Leanne_T]

Hi @Mommagoose

Thanks for coming here. 

Does the SIM card work in any other phone? 

Do you have signal showing on the iPhone 7 with the SIM card inserted? 

Leanne.