I bought my mom an iPhone se for METRO PCS, and the metro SIM card reads (no network) what can be wrong?

I bought my mom an iPhone se for METRO PCS, and the metro SIM card reads (no network) what can be wrong?

Is the sim card activated?

Whatever is wrong,
you should be in contact with Metro PCS about it,
not wasting your time asking here.

I'd contact Metro about that.

By the way MetroPCS is now just metro since being bought by T-Mobile.