I didn't give up

When I got my SIM for my phone, I rushed to put it in the phone right away. I checked to see if I had service. I didn't. I looked up my apn or tried but couldn't find the info. Told that I need to set it up. I tried calling someone and they told me to turn my phone off and back on after we hung up. Somehow, this worked. I have tried this every time connection if bad and it STILL works! I could not believe that I did not think of this. I thought that the SIM was broken or this was a ****.