Can a CDMA phone be used on a GSM network?
CDMA and GSM are totally different technologies—they are network technologies linked to each carrier here in the U.S.
T-Mobile and AT&T run on GSM networks.
Sprint and Verizon run on CDMA technology.
The general rule is that a CDMA phone wont work on a GSM network, and vice versa—they run on different frequencies..
How can I use GSM SIM in CDMA slot?
GSM uses a passcode to lock the phone to a particular network’s SIM card. The passcode is needed one time to unlock the phone and allow a different SIM card to be used. CDMA phones must be flashed in person using a cable in order to get it to use a different CDMA network.
How do I know if my phone is a GSM or CDMA?
Look up the model number You can use those same About settings to find your model number on both iPhone and Android devices. Model numbers are also often printed on the back of your phone. Once you’ve got your model number you can use a simple Google search to find out if it’s a GSM or CDMA phone.
Are SIM cards GSM or CDMA?
Well GSM networks like US Mobile, T-Mobile, and AT&T use removable SIM cards. This means that unlocked phones from other American GSM carriers will work on US Mobile’s network. On the other hand, Verizon and Sprint are CDMA carriers. CDMA carriers don’t use SIM cards and most CDMA phones are locked into their network.
Can I put a Verizon SIM card in a GSM unlocked phone?
CDSM and GSM phones are just too different. GSM phones that are HD Voice capable are compatible with the Verizon network as of 2018. After 2019, no CDMA only device will be compatible for Verizon.
What phones have both CDMA and GSM?
The Moto G4 Plus, Motorola Droid Turbo 2, and Moto X Pure can all work on both GSM and CDMA networks. These phones are also notable for their touch-free controls.