Asked by: Khaldia Khali
technology and computing smartphones

Can I switch from GSM to CDMA?

Last Updated: 9th February, 2020

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T-Mobile and AT&T run on GSM networks. Sprintand Verizon run on CDMA technology. CDMA cell phonessometimes have the sim-card built in to them, but it all depends onthe age and brand on the phone. The general rule is that aCDMA phone wont work on a GSM network, and viceversa—they run on different frequencies.

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Simply so, can you switch a GSM phone to CDMA?

US Mobile is a GSM carrier. In general, anunlocked GSM phone from AT&T and T-Mobile will work oneach other's networks. Older phones from Verizon and Sprint,on the CDMA network, don't operate with a SIM card. Thatbasically means that those phones are restricted andcan't be used on another CDMA networks.

Also, what does GSM and CDMA unlocked mean? All GSM devices are designed so thatservice is provisioned using a SIM card. With an unlockeddevice, a GSM smartphone can be reprovisioned andused on another network simply by popping out the old SIM card andputting in a new one from the new carrier. EV-DO is the 3Gtechnology used on CDMA networks.

Also Know, is Republic Wireless a CDMA or GSM?

Most Republic Wireless 3.0 phones can run on bothour GSM and CDMA networks. However, due to hardwarelimitations, some of our phones will only work on our GSMnetwork.

Can a CDMA phone work on GSM?

Well GSM networks like US Mobile, T-Mobile, andAT&T use removable SIM cards. This means that unlockedphones from other American GSM carriers willwork on US Mobile's network. On the other hand, Verizon andSprint are CDMA carriers. CDMA carriers don't use SIMcards and most CDMA phones are locked into theirnetwork.

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