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SIM not detected

Star I
Please tell us some basic information before asking for help:
Model Name: ROG phone 3
Firmware Version: 17.0823.2008.79
Rooted or not: no
Frequency of Occurrence: all the time
APP Name & APP Version (If your issue relates to the app):
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.
I've been trying all night to see if I could find a solution online but I couldn't find one. I did the network reboot, restart the phone with and without the SIM, my SIM card does work on other phones and disabled and readable both SIM slots. Just keep getting the same message "SIM (1 or 2) not allowed" My network provider is Metro PC.

Rising Star II
You need to call metro, tell them you need to activate a new phone. They'll probably ask your PIN number for your account, your SIM card serial number, and the IMEI of your new phone. Just a switch they need to flip on their end - no problem with the phone.