I got a new phone and swapped my number to it. I want to give my old phone to my mother. Unfortunately, when I activated the old phone with a new number, my number is connected to both my new phone and my old phone (even after a factory reset). Calls and texts are still going to the old phone AND my new phone. HELP!
This should be fixed with a Network Config Reset. Here are the directions to do it for Apple and Android:
Apple iPhone network reset = Reset your Network Settings. Tap Settings > General > Reset > Reset Network Settings. This also resets Wi-Fi networks and passwords, cellular settings, and VPN and APN settings that you’ve used before.
Android network reset Two ways
some newer phones=
All CDMA Android phones(sometimes you need a MSL code from BOOST)=
If after doing a Network reset on both phones you are still having issues, you may have to contact customer care.