Hey @Fabian1 ,
You should be able to enter the SIM PIN via the Local Status Page on newer firmware(s), for example, this MX67C-HW-WW is running 18.107.2 and there's a field to enter the SIM PIN.
![SCR-20230919-lwlr.png SCR-20230919-lwlr.png](https://community.meraki.com/t5/image/serverpage/image-id/32608iDEEC512BB3510090/image-size/medium?v=v2&px=400)
If you have any issues please reach out to support.
Cheers,
Connor