Plugged new SIM into old phone, now my new SIM doesnt work in my new phone
I got a refurbished Samsung Galaxy S9 because my old phone is being discontinued for the 5G network upgrades. With this phone came a new SIM card, plugged it in the S9 and worked fine with service. Out of curiosity I plugged in the new SIM card into my old phone to see if it would also get service as well but it did not. When I took the new SIM out and put it back in the S9, I now no longer have service. Did my old phone deactivate my new SIM by chance?