Develop Bugs

Can the GSM phone use CDMA?

I have the standard TP2 unlocked UK version, that is a GSM phone but I understand that TP2 has dual system capability, GSM and CDMA. I use it a lot in India where CDMA is more popular and has better coverage. Can I somehow use a CDMA SIM and service by unlocking something?

There are two main versions of the TP2, the CDMA/GSM hybrid variations that Verizon, Sprint, etc carry and the GSM models that ATT, T-Mobile carry. The unbranded version is also a GSM phone. The GSM models, including the unbranded do not have CDMA radios. CDMA cell tech does not use SIM cards. The SIM cards in the hybrid versions give United States TP2 users the ability to use their phone across the globe.

a2002cmacg said:
There are two main versions of the TP2, the CDMA/GSM hybrid variations that Verizon, Sprint, etc carry and the GSM models that ATT, T-Mobile carry. The unbranded version is also a GSM phone. The GSM models, including the unbranded do not have CDMA radios. CDMA cell tech does not use SIM cards. The SIM cards in the hybrid versions give United States TP2 users the ability to use their phone across the globe.
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so the bottom line, is NO, you cannot use your GSM phone as a CDMA one.

Galaxy nexus and AT&T?

If we buy the Verizon version, unlocked, will it work on AT&T? Is this going to be an option, or just importing it from uk etc?

Could of swore i read somewhere that att's lte will work on a slightly different mhz that it won't be compatible with verizon's lte, someone correct me if im wrong.

ekerbuddyeker said:
If we buy the Verizon version, unlocked, will it work on AT&T? Is this going to be an option, or just importing it from uk etc?
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peachpuff said:
Could of swore i read somewhere that att's lte will work on a slightly different mhz that it won't be compatible with verizon's lte, someone correct me if im wrong.
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The "AT&T" one, which at the moment is the same as the "world" version will NOT work on VZW.
As of now there are 2 models of the Galaxy Nexus: 1) CDMA/LTE (for Verizon in the USA) and 2) GSM/HSPA+ (for the rest of the world, yes including AT&T and T-mo in the USA).
As of now, there are no GSM/LTE versions (I'm assuming this is what you're looking for on AT&T). If you use the GN on AT&T, it will have HSPA+, but not LTE. And no, the VZW version will not be able to be unlocked and used with an AT&T LTE SIM card, because AT&T is only operating data on LTE, and you'd get no voice/text (assuming you somehow got the device unlocked to accept the SIM in the first place).
Unless Samsung/Google have some kinda curveball lined up to announce a 3rd model with GSM/LTE for AT&T, that will come in the future. As of now we're not aware of this model.

martonikaj said:
And no, the VZW version will not be able to be unlocked and used with an AT&T LTE SIM card, because AT&T is only operating data on LTE, and you'd get no voice/text (assuming you somehow got the device unlocked to accept the SIM in the first place).
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You are correct in saying the Verizon Galaxy Nexus will not work with an AT&T SIM. However, the reason you provided is incorrect. Currently, both AT&T and Verizon operate data only LTE networks. Neither provide LTE voice (Voice Over LTE aka VoLTE) but both plan to (Verizon in 2012 and AT&T in 2013). Whether or not the Galaxy Nexus can take advantage of VoLTE is another open question but it will be able to use CDMA voice either way.
The real reason your Galaxy Nexus will not work on the AT&T network is the LTE frequency bands are different as well as the obvious 2G and 3G CDMA/GSM incompatibilities. A Verizon Galaxy Nexus with the an AT&T SIM (assuming you can unlock the device) will never be able to find the AT&T network. Hopefully, future devices will offer software programmable radios that can be unlocked to interoperate on multiple bands. There are plans for some 43 LTE bands worldwide!!!

So I'm guessing that by the same token in Canada, if your with bell, getting the LTE version is pointless?
Sent from my GT-I9000 using XDA App

ianwood said:
You are correct in saying the Verizon Galaxy Nexus will not work with an AT&T SIM. However, the reason you provided is incorrect. Currently, both AT&T and Verizon operate data only LTE networks. Neither provide LTE voice (Voice Over LTE aka VoLTE) but both plan to (Verizon in 2012 and AT&T in 2013). Whether or not the Galaxy Nexus can take advantage of VoLTE is another open question but it will be able to use CDMA voice either way.
The real reason your Galaxy Nexus will not work on the AT&T network is the LTE frequency bands are different as well as the obvious 2G and 3G CDMA/GSM incompatibilities. A Verizon Galaxy Nexus with the an AT&T SIM (assuming you can unlock the device) will never be able to find the AT&T network.
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Thanks for a little more information, but I said just as much. Even if you somehow got it unlocked to accept a different LTE SIM card (don't think it'd ever happen), there are several reasons why the phone wouldn't work. Even if they did have the same LTE frequencies exactly (or you hacked it on), he wouldn't get any GSM functionality out of the VZW device.
Basically what I was trying to express is that the other things could theoretically be overcome with software/firmware hacks (VZW and ATT will operate in the same spectrum, just slightly different frequencies), whereas you can't ever overcome the fact that the CDMA does you no good on the AT&T network.
Overall I think the point has been made regardless...

dont forget sprint and other cdma carriers in US

Can Verizon Nexus work under WCDMA 3G

Usually phones from Verizon is CDMA only and can not work under WCDMA like AT&T network.
Currently the only way to get a Nexus is to get from Verizon. Can I use it under other Carrier whose network is WCDMA ?
THanks a lot !

For the 1,000,000th time, no. The CDMA version will not work on a GSM carrier. Or vice versa. Not with a GSM SIM, or LTE SIM not provisioned by Verizon.
Even if you could, you'd have to buy it off contract from Verizon to use it on AT&T, which would cost you $650 + tax. If you're going to buy it that way you can just import from the UK for ~$690.

Verizon Note 2 Vs. T-Mobile Note 2

Which Note 2 supports more networks and frequencies; and therefore, which would be more suitable for international travel. Is the Verizon Note 2 even pentaband?

T mobile version because it's gsm which is going to work overseas. Verizon is a CDMA and I haven't read that it has gsm support.
Sent from my SGH-T889 using xda premium

Rhiannon224 said:
T mobile version because it's gsm which is going to work overseas. Verizon is a CDMA and I haven't read that it has gsm support.
Sent from my SGH-T889 using xda premium
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Yup, the T-Mobile version will work in more places overseas -- Especially Europe. Just in case, you might want to ask this in the Verizon area also just to make sure. :good:

I'm confused because on Samsungs website, http://www.samsung.com/us/mobile/cell-phones/SCH-I605TSAVZW-specs
the Verizon Model has the GSM frequencies,
is it GSM if unlocked; i believe the Note 2 is already unlocked by verizon, will it work on GSM frequencies internationally?
correct me if I'm wrong, thanks

the verizon Galaxy Note II apparently has the GSM radios,
also has LTE; doesn't AT&T LTE work along same frequencies as verizon LTE
or is the verizon LTE exlusively to CDMA?

All Galaxy Note 2 devices seem to have all WCDMA, GSM, and LTE bands.
But what I understand is that Verizon version is considered as a "world" phone. I know that they tell me that I can use their Galaxy Note 2 on the European Networks.
I have played around with the bands on my T-Mobile Galaxy Note 2 and can get the WCDMA and LTE working. So I don't know if the Modem firmware in all Galaxy Note 2 are the same and just need to be activated by the carrier's sim card or not. Someone please educate us on the this. I know that their is talk of needing OTA update to activate the LTE within T-Mobile GN2. But if the Modem is all the same then can just updating or exchanging the sim card could do the same? Or does the nv file also needs to be updated to activate the band/s as well?
The question is not if Galaxy Note 2 (all verisons) have the bands. But how to (the actual process) activate the band, in question, and get the Galaxy Note 2 in working order with the carrier of choice? What is the method? How to do the process of this method?
Please correct me if I am getting this wrong.

^ good point, and also just to ask about the verizon note 2 again, i thought it carries carries an an additional radio for CDMA, does this mean that the verizon note 2 model has better capabilities worldwide' since it is virtually compatible with all networks in the world (simply tweaks to the frequencies to the radio can get the verizon variant working virtually anywhere) please correct me if I'm wrong here. thanks

N/m ...
Sent from my SGH-T889 using Tapatalk 2

Problem I have seen in the past with Verizon world phones is that the game frequencies only work overseas. And lte is gsm band. Which is one of the few reasons Verizon phones have a sim slot to begin with
Sent from my SGH-T889 using xda app-developers app

All recent Verizon LTE phones have GSM radios built in as well as their own CDMA/LTE radio. The LTE radio is only compatible with their network.
Some of these phones are even shipped out of the box unlocked and can be used immediately on GSM networks in the U.S.
If you do get the Verizon Note II and want to use it on T-Mobile, it will not have support for their HSPA+ 42mbps network, I believe it maxes out at 21mbps, as with all other Note II's around the world except for T-Mobiles.

But doesn't Verizon use LTE on the 700 band just like AT&T and future TMobile LTE?
http://en.wikipedia.org/wiki/List_of_LTE_networks
Please correct me if I'm wrong, thank you.

nerdydesi said:
All recent Verizon LTE phones have GSM radios built in as well as their own CDMA/LTE radio. The LTE radio is only compatible with their network.
Some of these phones are even shipped out of the box unlocked and can be used immediately on GSM networks in the U.S.
If you do get the Verizon Note II and want to use it on T-Mobile, it will not have support for their HSPA+ 42mbps network, I believe it maxes out at 21mbps, as with all other Note II's around the world except for T-Mobiles.
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So the Verizon Note2 is like the AT&T Note2 & Sprint Note2 (supporting 21Mbps HSPA+ but not 42Mbps like T-Mobile) but all only with their own respective LTE?..wouldn't it be more cost effective for Samsung just to make 1 phone with all the hardware to support all (isn't the iPhone5 like that now?) or is it cost prohibitive or do carriers not want to make it easier to unlock?
Are we still confident that the T-Mobile Note2 is the best if we want the flexibility to use on all carriers? How often is >21Mbps HSPA+ seen in real world use & why is the disabled LTE not listed at http://forum.xda-developers.com/forumdisplay.php?f=1877 ?

So, which is better then, Verizon or T-Mobile? Verizon's Note 2 also includes a CDMA radio whereas the T-Mobile version does not. If you are using the Note 2 in the US, wouldn't you have more flexible options in terms of which carrier to use?

nerdydesi said:
All recent Verizon LTE phones have GSM radios built in as well as their own CDMA/LTE radio. The LTE radio is only compatible with their network.
Some of these phones are even shipped out of the box unlocked and can be used immediately on GSM networks in the U.S.
If you do get the Verizon Note II and want to use it on T-Mobile, it will not have support for their HSPA+ 42mbps network, I believe it maxes out at 21mbps, as with all other Note II's around the world except for T-Mobiles.
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So do we consider the Verizon Note2 even more carrier flexible than T-Mobile's Note2 (as I was about ready to buy the T-Mobile Note2 to try their $30/mo plan but now having some doubts..if I want this tomorrow I need to order soon) ?
-Thnx

Well LTE On the Verizon Note 2 is only compatible with Verizon's Network. Even if unlocked; the phone's firmware only recognizes LTE if only the Verizon 750 band is detected. Verizon has its own exclusive LTE bands compared to AT&T and Future T-Mobile LTE (sharing the same LTE bands)
SMARTPHONEPC said:
So do we consider the Verizon Note2 even more carrier flexible than T-Mobile's Note2 (as I was about ready to buy the T-Mobile Note2 to try their $30/mo plan but now having some doubts..if I want this tomorrow I need to order soon) ?
-Thnx
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Click to collapse

I cannot speak to the CDMA radio issue, but I am positive that Verizon LTE will not work with any GSM LTE phone. The frequencies are similar, but Verizon is using a different LTE protocol. I asked that question a long time ago, thinking that LTE would finally allow roaming between Verizon and AT&T, but they are too clever to allow such a democratic system to function. They will remain fundamentally incompatible, not because they need to be, but because they want it that way to keep you locked to your carrier by your choice of device. Nice, eh?
Sent from my SGH-T889 using xda app-developers app

The Verizon NoteII will (in theory) connect to any gsm carrier. How to do so, I don't know.
Sent from my very "non-stock" TP.

^^^ Well, the Verizon Note 2 will not be able to work with another carrier's LTE than itself.

my experience
Hey folks,
I've got the Verizon Note 2 and I love it. If you're willing to unlock the bootloader and then install a hack onto your device, you'll easily be able to swap the SIM card out and use it just about anywhere. Yes, the phone is carrier unlocked (not the same as bootloader unlocked). The issue is that in the settings, they won't let you add the specific APNs for the carriers you need. I"m not sure how else to get around that without installing some of the hacks. I managed to do it and it works beautifully on Canada's Bell Mobility, HSPA+ is screamingly fast and the LTE on VErizon in the States is just insanely fast. My recommendation: get the Verizon version because they've built out their LTE much more than their rivals at this point.

On anantech the reviewer stated that the tmobile version would be the most compatible. If you get vzw note2 and switch you wont get lte on tmob or att. Quite frankly vzw is too expensive and the coverage from tmobile is getting better by the month. Not to mention their business pricing is better than any of the other carriers.

Can this phone be used on other carriers?

Hi, I am sorry if this has been asked already. I am wondering whether a Sprint Samsung S6 Edge PLUS can be unlocked(Via Sprint, not third party) to work on other networks? I am currently on Verizon and am considering buying my friend's S6 Edge plus because he gave me a good deal. Thanks for your time.

Sprint would unlock it . Its happened to a few people i know who purchased it outright . Call sprint and ask for the device to be unlocked domestically

USA Prepaid?
Can this be done to use a Sprint S6 on a USA prepaid carrier?
What if phone is brand new and never activated on sprint network?

It'll work in the USA but no lte support as of yet for sprint unlocked to gsm

Yes and No, the G925P is a Sprint phone meaning its a CDMA Phone, Verizon uses the same technology on their network, CDMA phones have to be reprogrammed to work on another carrier using a CDMA Network. But this phone is a dual GSM/CDMA Phone, meaning since GSM phones use a SIM Card so you can if Sprint Unlocks the phone because you own it outright you can go to another GSM carrier and some or all the features might work, this phone is different than the G925F international GSM phone which will work almost anywhere in the world as long as its connecting to a GSM Network. All you do then is just change the SIM card and your connected to that carrier. If you want to be on Verizon its best to just get a G925V from them because its already programmed for Verizon rather than trying to make this Sprint Phone work on their CDMA Network. It can be done but to reprogram the damn thing is not that easy and very time consuming for a newbie to tackle. Sell it, get a Verizon phone if you like it that much. or switch to Sprint.

here is an easy way to look at this, LTE is built on GSM hence why the new sprint/verizon LTE phones have SIM cards, you can try to switch to AT+T or T-Mobile but you may loose 2g-3g connectivity, maybe, maybe not all depends on the phone variant, so lets look at Verizon
Verizon -
CDMA/LTE
uses 700 MHZ (band 13) and 1700 MHZ (band 4)
Sprint-
CDMA/LTE
uses 800 MHZ and 1900 MHZ (band 26 and 25)
and 2.5 GHZ for Sprint Spark (band 41)
so you see they operate on different bands, I noticed not all S6's have the same bands either, depends on the carrier and these phones are made for them to be different, so to find a phone that has all of these bands would work in theory on any network but with CDMA they have electronic serial numbers embedded in the device and you will have to reprogram the radio/chip in order to work on another carrier. So to answer can I use a sprint phone on verizon would be a simple NO.