Before doing anything else, make sure your phone is unlocked before switching. Since Simple Mobile operates on the T-Mobile (GSM) network, it is easy to switch to Simple Mobile with a T-Mobile compatible device. If you have a phone made in the past few years, switching from any carrier will be fairly easy. If you have an older device from a CDMA carrier, you may not be able to migrate your phone to Simple Mobile. I advise you to contact the simple mobile customer service https://simple-mobile.pissedconsumer.com/customer-service.html . With these, you can use the phone compatibility program to find out which carriers are compatible with your old CDMA device.
