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If there is a place for a SIM card under the battery then the device is GSM. If there is not a place for a SIM card then it is CDMA. Also, if there is an ESN on the bar code label under the battery then it is also CDMA. If there is an IMEI on the bar code label then it is GSM.

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Q: How do youfind out if my phone is CDMA or gsm?
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Can you convert gsm phone to CDMA?

It depends if the phone is compatible with a gsm network if so it has to be unlocked


What is the difference between unlocking a phone and flashing a phone?

Unlocking usually refers to a GSM network and flashing usually refers to CDMA networks. When you unlock a phone you can use it on any carrier that uses the same radio (GSM/CDMA), or if you have a world phone, either a GSM or CDMA. Flashing the phone just allows you to use one specific CDMA carrier.


Is an iPhone a CDMA phone?

Yes, it is now. THe iPhone 4S is actually both GSM and CDMA.


Is nexus s phone CDMA?

The Nexus S came in both CDMA and GSM variants.


What use is CDMA in mobile?

CDMA is a type of network that cell phone company's use. There are to meager types of networks that are used CDMA and GSM. Cell phone are usally made to work on one or the other network. The Iphone is GSM and Verizons Dare is CDMA but some phone can work on both like the new Blackberry storm.


How do i switch from a Verizon phone to an iPhone when Verizon doesn't have sim cards?

You cannot. Verizon = CDMA AT&T = GSM (network that houses the iPhone) CDMA and GSM are not compatable.


Is the iphone5 a gsm phone?

Yes. iPhones have always been GSM phones. CDMA was introduced with the iPhone 4 and the 4S was the first iPhone to introduce dual band iPhones with GSM/CDMA antennas.


Can you convert my gsm into CDMA phone ON TATA?

no because these are two different technologies.


Can you turn any phone into a tracfone?

There are two types of TracFones now, CDMA and GSM. This refers to the type of network used by the phone. And CDMA phone works only on CDMA networks, and same for GSM. GSM phones have SIM cards, CDMA do not (for the purpose of this discussion, anyway). I'm not clear on your reason for asking this question, but that's your answer. A CDMA phone does not have a SIM card. For more on CDMA vs. GSM Tracfones, check out this page: http://pbush14.wordpress.com/2008/03/16/tracfone-cdma-vs-gsm/ I should also clarify here that if your phone is a GSM phone, it MUST have a SIM card installed to operate. Also, to be used as a Tracfone, a phone must have the Tracfone software installed on it. This means that it must have been purchased as a "Tracfone" model. You can NOT bring a phone from a different service and use it as a Tracfone.


Can a Blackberry Pearl 8100 with an unlocked GSM sim card work on a Rogers plan?

There are two types of cell phone networks, GSM and CDMA. As long as the network you are trying to move your unlocked phone to is compatible then yes it will work. In most cases a GSM phone will not work on a CDMA network and vise versa, however, some careers (such as Verizon) have support signals for GSM phones. There is no support for CDMA phones on a GSM network at this time. So for overall versatility, GSM phones are better.


How do i switch phones with a CDMA phone?

This cannot be done unless you change the hardware itself. CDMA and GSM are two different technologies used by the carriers and it's a difference in the hardware that makes it not possible for you to convert a CDMA phone on GSM, or vice versa. i just bought a htc evo 4g and its a cdma phone.I am taking it along with me to Europe and i know it may not be used there,but a friend of mine told me it could be converted to gsm only if a space behind the phone can be created and also other features would be formated before i start using it.so i think cdma could be converted to gsm


Can you put the CDMA sim card to the gsm phone?

CDMA and GSM are Radio technologies and mobile Phone is just an Antenna to receive these Radio Signals. Since both the technologies work on different frequency range and has different modulation shemes therfore the mobile phones for both are different.Apart from this 3G tehchnology which is combination of both GSM and CDMA (WCDMA) is compatible with both GSM and CDMA. So a 3G mobile can serve for both GSM and CDMA radio signals.SIM (Subcriber Idendity Module) is consists of Credential for network authorization. Since Both GSM and CDMA technologies has different Authorization functions and parameters hence both SIMs are different. Note: In CDMA technology SIM is often called as RUIM (Removable User Idendity Module).CDMA uses Different Frequencies than GSM. CDMA also does not require a SIM card.Now some companies do provide SIM cards for CDMA connections also, such as Reliance communications and TATA Indicomm in India.CDMA can hold more calls per channel on their towers, while GSM drops alot of calls. That is why people are always complaining about T-Mobile and At&t dropped calls. GSM is used internationally while CDMA is mostly used in the domestic United States. CDMA carriers are Verizon, Alltel, Sprint, Cricket....while GSM carriers here in the U.S. are T-Mobile and At&t.