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I tried to get TMobile service for my Nexus one but it wouldn't pick up 3G. So I called Google tech support and they said my Nexus one is an AT&T only nexus one. What's up with that? I thought this was an unlocked phone able to handle any GSM carrier? Can I get it to work on TMobile?
justindri said:
I tried to get TMobile service for my Nexus one but it wouldn't pick up 3G. So I called Google tech support and they said my Nexus one is an AT&T only nexus one. What's up with that? I thought this was an unlocked phone able to handle any GSM carrier? Can I get it to work on TMobile?
Click to expand...
Click to collapse
maybe they meant AT&T 3G, it should pickup the EDGE network on Tmo or you are in a dead zone.
justindri said:
I tried to get TMobile service for my Nexus one but it wouldn't pick up 3G. So I called Google tech support and they said my Nexus one is an AT&T only nexus one. What's up with that? I thought this was an unlocked phone able to handle any GSM carrier? Can I get it to work on TMobile?
Click to expand...
Click to collapse
it will work on tmobiles edge service, but not on 3G. tmobile and att have different frequencies for their 3G signals. and yes, there are 2 kinds of nexus ones. one for tmobiles frequency, and one for atts frequency.
If I root the phone will I be able to use it on tmobile?
No, Tmobile runs 3G through 1700mhz band & ATT runs 3G through 850mhz & 1900mhz bands. Both carriers use 850/1900mhz bands for gprs & edge network. There is no way to change the frequencies your phone uses because its a hardware issue. This has been attempted many many times with the US always getting phones last.
This is something to determine when first buying the phone. Did t-mobile sell you the wrong version of the nexus?
justindri said:
I tried to get TMobile service for my Nexus one but it wouldn't pick up 3G. So I called Google tech support and they said my Nexus one is an AT&T only nexus one. What's up with that? I thought this was an unlocked phone able to handle any GSM carrier? Can I get it to work on TMobile?
Click to expand...
Click to collapse
There is a difference between "unlocked", meaning - any SIM can go in and the phone won't stop it from working, and "correct band for GSM/3G", which is in hardware - the phone has support for X different frequencies of GSM and Y different frequencies of UMTS (3G), and if the carrier you're trying to connect to doesn't work with any of those frequencies and works with some other ones - having a working SIM won't help you, since the phone won't find the working frequencies.
And this question was answered about 10000 times.
Hey everyone. So i have a question that i can't find on here so im going to ask it. I have a Verizon HTC one unlocked. The sim car works fine and i can do everything on the phone with the T-mobile sim card. The issue is its always Edge data. Is there a specfic APN i have to use? something im not seeing? Does anyone else have this issue? It is a stock factory HTC One, nothing custom.
super-6-1 said:
Hey everyone. So i have a question that i can't find on here so im going to ask it. I have a Verizon HTC one unlocked. The sim car works fine and i can do everything on the phone with the T-mobile sim card. The issue is its always Edge data. Is there a specfic APN i have to use? something im not seeing? Does anyone else have this issue? It is a stock factory HTC One, nothing custom.
Click to expand...
Click to collapse
I don't think the Verizon model will have the correct radio frequencies to use T-Mo's LTE or HSPA+ network, hence you're stuck on Edge. If you're staying with T-Mo, I'd suggest selling your current One and buying a T-Mo specific HTC One.
LBN1 said:
I don't think the Verizon model will have the correct radio frequencies to use T-Mo's LTE or HSPA+ network, hence you're stuck on Edge. If you're staying with T-Mo, I'd suggest selling your current One and buying a T-Mo specific HTC One.
Click to expand...
Click to collapse
This is pulled from Verizons website
Network: LTE, CDMA/1xEVDO Rev. A (800/1900 MHz)
Global Network: EDGE/GSM (850/900/1800/1900), HSPA/UMTS(1900/2100) aGPS capable for E911 emergency location, aGPS (assisted), sGPS (simultaneous), Standalone GPS, eCompass, GLONASS
T-mobile uses the 1900 Mhz base band and the HSPA as well. So i don't see the issue in that one.
super-6-1 said:
This is pulled from Verizons website
Network: LTE, CDMA/1xEVDO Rev. A (800/1900 MHz)
Global Network: EDGE/GSM (850/900/1800/1900), HSPA/UMTS(1900/2100) aGPS capable for E911 emergency location, aGPS (assisted), sGPS (simultaneous), Standalone GPS, eCompass, GLONASS
T-mobile uses the 1900 Mhz base band and the HSPA as well. So i don't see the issue in that one.
Click to expand...
Click to collapse
From what I can tell, nobody uses the dual 1900/2100 to achieve 4G like TMO. The UMTS referred to on that phone is for worldwide use, not US. So while it may have the frequencies, it is not set up to use them like TMO. Your software and firmware are set up to work with Verizon and overseas, not with a competitor like TMO. TMO refers to theirs as HSPA+. However, it might work on the new "reframed" 1900 bands (which is called HSPA), but those are not very highly deployed. Unfortunately, I don't see LTE on that list of frequencies. The TMO LTE is really great. EDIT: I mean TMO LTE, which is also 1700/2100.
I suppose you could try unlocking it and flashing the TMO radio, but there is an entire thread on trying to unlock TMO frequencies (in that case on the developer version), and no one has figured it out yet.
I concur that your best bet would be to sell the phone and get a TMO model.
stevedebi said:
From what I can tell, nobody uses the dual 1900/2100 to achieve 4G like TMO. The UMTS referred to on that phone is for worldwide use, not US. So while it may have the frequencies, it is not set up to use them like TMO. Your software and firmware are set up to work with Verizon and overseas, not with a competitor like TMO. TMO refers to theirs as HSPA+. However, it might work on the new "reframed" 1900 bands (which is called HSPA), but those are not very highly deployed. Unfortunately, I don't see LTE on that list of frequencies. The TMO LTE is really great. EDIT: I mean TMO LTE, which is also 1700/2100.
I suppose you could try unlocking it and flashing the TMO radio, but there is an entire thread on trying to unlock TMO frequencies (in that case on the developer version), and no one has figured it out yet.
I concur that your best bet would be to sell the phone and get a TMO model.
Click to expand...
Click to collapse
Yeah thats what im thinking. I need to contact and t-mobile rep and see if the re-farmed LTE here. Ill call and ask.
Alright so i called the rep and he said the area i am has been re-farmed to the 1900 range and i should be getting at least HSPA/3G but im not. Very odd issue
super-6-1 said:
Hey everyone. So i have a question that i can't find on here so im going to ask it. I have a Verizon HTC one unlocked. The sim car works fine and i can do everything on the phone with the T-mobile sim card. The issue is its always Edge data. Is there a specfic APN i have to use? something im not seeing? Does anyone else have this issue? It is a stock factory HTC One, nothing custom.
Click to expand...
Click to collapse
Verison use the CDMA, maybe that's why you can only use 2.5G network, just like some phones in China, they only have GSM in common
xunqren said:
Verison use the CDMA, maybe that's why you can only use 2.5G network, just like some phones in China, they only have GSM in common
Click to expand...
Click to collapse
yes but this phone has 4g lte already in it which accepts the sim card. Also, i have seen other verizon htc ones with t-mobile and never had a issue. I fell i may have to use a custom rom.
super-6-1 said:
yes but this phone has 4g lte already in it which accepts the sim card. Also, i have seen other verizon htc ones with t-mobile and never had a issue. I fell i may have to use a custom rom.
Click to expand...
Click to collapse
What he is referring to is that what Verizon uses as "3G" is CDMA technology. So although they (T-Mobile and Verizon) may be on the same frequency they're using totally different technologies. Just because it has a sim card slot for a Verizon sim doesn't mean the device will be compatible with another carrier's sim. A custom ROM would not resolve this issue. Your best bet would be to sell this device and purchase one from T-Mobile. :fingers-crossed:
jayrivi said:
What he is referring to is that what Verizon uses as "3G" is CDMA technology. So although they (T-Mobile and Verizon) may be on the same frequency they're using totally different technologies. Just because it has a sim card slot for a Verizon sim doesn't mean the device will be compatible with another carrier's sim. A custom ROM would not resolve this issue. Your best bet would be to sell this device and purchase one from T-Mobile. :fingers-crossed:
Click to expand...
Click to collapse
I know what the best way to go is but i am very curious as to what is really keeping it from going out of edge. baseband? Is the TMO and Verizon radios the same? these are things i need to know! >.<
super-6-1 said:
I know what the best way to go is but i am very curious as to what is really keeping it from going out of edge. baseband? Is the TMO and Verizon radios the same? these are things i need to know! >.<
Click to expand...
Click to collapse
My understanding is that the devices run on different systems for 3G and different LTE bands. You wont get more than GSM compatibility (GPRS, EDGE). Hopefully it is something that a software hack can fix but if you read around all the HTC One forums you will see no one has found it. Right now it is not possible.
jayplusone said:
What he is referring to is that what Verizon uses as "3G" is CDMA technology. So although they (T-Mobile and Verizon) may be on the same frequency they're using totally different technologies. Just because it has a sim card slot for a Verizon sim doesn't mean the device will be compatible with another carrier's sim. A custom ROM would not resolve this issue. Your best bet would be to sell this device and purchase one from T-Mobile. :fingers-crossed:
Click to expand...
Click to collapse
My question is that HTC makes phones for all T mobile verison sprint the same, so I believe its just software problem that we cant use Tmobile 4g lte on Verizon unlocked phone. SO does anyone have any comment for that?
aaloknaik said:
My question is that HTC makes phones for all T mobile verison sprint the same, so I believe its just software problem that we cant use Tmobile 4g lte on Verizon unlocked phone. SO does anyone have any comment for that?
Click to expand...
Click to collapse
It is hardware not software that is the issue. The T-Mobile variant has different bands than the other variants including Verizon. T-Mobile is a GSM variant while Verizon is a CDMA variant. Here is a comparison of the specs for the variants.
CDMA and GSM technology requires the antenna to be done differently. If they are not programmed to use those signals. Nothing you can dox will change it short of putting a new antenna in.
majmoz said:
It is hardware not software that is the issue. The T-Mobile variant has different bands than the other variants including Verizon. T-Mobile is a GSM variant while Verizon is a CDMA variant. Here is a comparison of the specs for the variants.
Click to expand...
Click to collapse
SO how do i know if my phone is Verizon CDMA unlocked or GSM unlocked
aaloknaik said:
SO how do i know if my phone is Verizon CDMA unlocked or GSM unlocked
Click to expand...
Click to collapse
Because you can only unlock GSM. Cdma uses the serial/esn number of the device.
Has there been any update on this? I called tmobile and they said it was simply because I couldn't put in the APN. So, there's no chance that rooting the phone and putting a tmobile rom on it would fix the problem and let me get more than edge speeds.
I myself have been wondering the answer to this. The device might seem the same but under the cover they are different. The actual daughter board which the camera, vibrating thing, volume rocker, power button are connected to are fairly different from each other. The CDMA variant is not compatible with the GSM variant. Not even by adding a CDMA daughter board to the GSM motherboard and vice versa, the are made quiet differently and will not be able to use GSM bands on a CDMA m7
Sent from my HTC My touch 4G
¤-¤-TIP FROM THE NOOB-¤-¤
1. Enable USB Debugging before flashing custom recovery.
2. Make a backup via recovery before granting apk's root permission, editing system files, or flashing a new Rom
☺*better safe than sorry*☺
?May the Angels lead your way Tom (Tony Stark) . Thanks for your contribution ?*
Hello everyone,
I have a question I am hoping can be answered.
I used to own an HTC Dinc with that device I was able to watch YouTube no problem, however I can't watch any videos at all with this new phone.
I am thinking it's just slow connectivity*this is prolly it* but what's so different with my old phone to this?
My local carrier sells this particular model so I bought it second hand, it's a great device don't get me wrong but this one thing is killing it for me.
Is there a way to bring it back to the carrier and have them set it up to use the data like on my Dinc or am I just stuck with crappy connection?
Now with that all said, my local carrier markets 4G LTE but it has only one device which is an LG AS840, I actually asked if I can implement this to my One. They said they can't, I am wondering why wouldn't it work? Is it because the frequencies don't correspond with each other? Or am I missing something entirely?
All I want to do is be able to watch videos when I am not using WiFi*no internet at home atm, I have WiFi at work though*.
Another thing to add as well is, my girlfriend has an S3 which is AT&T branded, well to say it frankly her phone has much better connection than my One. I am also wondering about SIM unlocking, if I SIM unlock will I be able to use a SIM card from her carrier? Currently the carrier she uses is DoCoMo Pacific which uses AT&T branded devices while mine uses Sprint.
If anyone can enlighten me on this subject or even shoot down all my hopes I would appreciate it!!
v1ral said:
Hello everyone,
I have a question I am hoping can be answered.
I used to own an HTC Dinc with that device I was able to watch YouTube no problem, however I can't watch any videos at all with this new phone.
I am thinking it's just slow connectivity*this is prolly it* but what's so different with my old phone to this?
My local carrier sells this particular model so I bought it second hand, it's a great device don't get me wrong but this one thing is killing it for me.
Is there a way to bring it back to the carrier and have them set it up to use the data like on my Dinc or am I just stuck with crappy connection?
Now with that all said, my local carrier markets 4G LTE but it has only one device which is an LG AS840, I actually asked if I can implement this to my One. They said they can't, I am wondering why wouldn't it work? Is it because the frequencies don't correspond with each other? Or am I missing something entirely?
All I want to do is be able to watch videos when I am not using WiFi*no internet at home atm, I have WiFi at work though*.
Another thing to add as well is, my girlfriend has an S3 which is AT&T branded, well to say it frankly her phone has much better connection than my One. I am also wondering about SIM unlocking, if I SIM unlock will I be able to use a SIM card from her carrier? Currently the carrier she uses is DoCoMo Pacific which uses AT&T branded devices while mine uses Sprint.
If anyone can enlighten me on this subject or even shoot down all my hopes I would appreciate it!!
Click to expand...
Click to collapse
Who is your carrier, specifically? If your girlfriend is on DoCoMo Pacific, I’m guessing you live in Guam. The Sprint One can only use LTE on the 1900 MHz G-block (Band 25). Currently, I believe that Sprint is the only carrier in the world that uses that frequency/block, meaning the Sprint One will only be able to use Sprint’s LTE network. Since this is part of the physical design of the radio/antenna, it cannot be changed.
Here is the full list of frequencies that the Sprint One can access:
2G/2.5G - GSM/GPRS/EDGE: 850/900/1800/1900 MHz
3G - UMTS/HSPA: 1900/2100 MHz with HSPA+ up to 14.4 Mbps
3G - CDMA: 800/1900 MHz for Sprint
4G - LTE: Sprint: 1900 MHz
Click to expand...
Click to collapse
(Source)
In order to access the UMTS/HSPA bands, you would have to SIM-unlock. You would have to find out if there’s a carrier in Guam that transmits on those 3G frequencies (1900/2100 MHz) if you want to do things like stream video because the 2G/2.5G is very likely not fast enough.
subhumanderelict said:
Who is your carrier, specifically? If your girlfriend is on DoCoMo Pacific, I’m guessing you live in Guam. The Sprint One can only use LTE on the 1900 MHz G-block (Band 25). Currently, I believe that Sprint is the only carrier in the world that uses that frequency/block, meaning the Sprint One will only be able to use Sprint’s LTE network. Since this is part of the physical design of the radio/antenna, it cannot be changed.
Here is the full list of frequencies that the Sprint One can access:
(Source)
In order to access the UMTS/HSPA bands, you would have to SIM-unlock. You would have to find out if there’s a carrier in Guam that transmits on those 3G frequencies (1900/2100 MHz) if you want to do things like stream video because the 2G/2.5G is very likely not fast enough.
Click to expand...
Click to collapse
My carrier is IT&E.
So doing a SIM unlock will help me at least switch to a different carrier, I was actually thinking about doing it just to switch. But as I was reading the various SIM unlock threads here, it's still pretty sketchy.
How about that LG AS840 using LTE on my carrier, or should I throw that thought out the window?
I will look around and see what kind of prices the carrier's offer, I dont want to be on contract so maybe prepaid is the way to go*I'm actually off contract but still pay my contracted amount.
This device is exceptional but the data speeds here locally suck.
My son's AT&T S5 got stolen and my wife bought a US Cellular S5 off of Craigslist. My 1st thought was she got ripped off, but I took it in to US Cellular and they unlocked it for me. The phone doesn't have the option to switch to GSM network, so my AT&T Sim still doesn't work, but it doesn't say invalid Sim now. My question is this: is the modem GSM capable, but not listed? And if I root and flash another rom, will that enable the settings for GSM ?
I did notice the unlocked bootloader. I just rooted it very easily. Now if I can just get it to work on ATT.
sizemore2000 said:
My son's AT&T S5 got stolen and my wife bought a US Cellular S5 off of Craigslist. My 1st thought was she got ripped off, but I took it in to US Cellular and they unlocked it for me. The phone doesn't have the option to switch to GSM network, so my AT&T Sim still doesn't work, but it doesn't say invalid Sim now. My question is this: is the modem GSM capable, but not listed? And if I root and flash another rom, will that enable the settings for GSM ?
I did notice the unlocked bootloader. I just rooted it very easily. Now if I can just get it to work on ATT.
Click to expand...
Click to collapse
the unfortunate answer is no, CDMA devices do not work on GSM networks.
Thank you sir. Guess I'll put this one up for sale for a Sprint, Verizon, or US Cellular customer.
sizemore2000 said:
My son's AT&T S5 got stolen and my wife bought a US Cellular S5 off of Craigslist. My 1st thought was she got ripped off, but I took it in to US Cellular and they unlocked it for me. The phone doesn't have the option to switch to GSM network, so my AT&T Sim still doesn't work, but it doesn't say invalid Sim now. My question is this: is the modem GSM capable, but not listed? And if I root and flash another rom, will that enable the settings for GSM ?
I did notice the unlocked bootloader. I just rooted it very easily. Now if I can just get it to work on ATT.
Click to expand...
Click to collapse
Usually CDMA Phones wont work on GSM Network. But Verizon CDMA Phones does work on GSM too when unlocked as they have GSM Frequency.
I looked at Spec of US Cellular S5 and looks they don't have GSM Frequency. Its more like a strip down version and no GSM Frequency.
Here are the spec for
US Cellular
FREQUENCIES AND DATA TYPE
LTE: Bands 2/4/5/12/17; CDMA 1x/EVDO Rev.A: 800/1900MHz
Verizon S5
FREQUENCIES AND DATA TYPE
LTE: Bands 4/13; CDMA 1x/EVDO Rev.A: 800/1900MHz; GSM: 850/900/1800/1900MHz; HSPA+/UMTS: 850/900/1900/2100MHz
ATT
FREQUENCIES AND DATA TYPE
LTE: Bands 1/2/3/4/5/7/17; HSPA+/UMTS: 850/1900/2100MHz; GSM: 850/900/1800/1900MHz;
sakdroid said:
Usually CDMA Phones wont work on GSM Network. But Verizon CDMA Phones does work on GSM too when unlocked as they have GSM Frequency.
I looked at Spec of US Cellular S5 and looks they don't have GSM Frequency. Its more like a strip down version and no GSM Frequency.
Here are the spec for
US Cellular
FREQUENCIES AND DATA TYPE
LTE: Bands 2/4/5/12/17; CDMA 1x/EVDO Rev.A: 800/1900MHz
Verizon S5
FREQUENCIES AND DATA TYPE
LTE: Bands 4/13; CDMA 1x/EVDO Rev.A: 800/1900MHz; GSM: 850/900/1800/1900MHz; HSPA+/UMTS: 850/900/1900/2100MHz
ATT
FREQUENCIES AND DATA TYPE
LTE: Bands 1/2/3/4/5/7/17; HSPA+/UMTS: 850/1900/2100MHz; GSM: 850/900/1800/1900MHz;
Click to expand...
Click to collapse
Verizon switched to GSM thats why there devices will ocasionally work as long as the freqs are the same (some arent)
they still also have CDMA/EVDO configs as well since their network is still supporting both once they complete the switch over (from what ive been told mid to late 2016) they will no longer support any CDMA devices.
cstayton said:
Verizon switched to GSM thats why there devices will ocasionally work as long as the freqs are the same (some arent)
they still also have CDMA/EVDO configs as well since their network is still supporting both once they complete the switch over (from what ive been told mid to late 2016) they will no longer support any CDMA devices.
Click to expand...
Click to collapse
Sorry to sound harsh but what you're saying is complete nonsense. Verizon did not (and is not planning on a) switch to GSM. They were, and still are a CDMA carrier.
The reason Verizon devices support GSM is so that their customers can roam in countries outside the US, some of which happen to use the same GSM frequencies as AT&T and T-Mobile do in the US (and therefore, by extension, support these two carriers domestically). And since all Verizon devices which include support for LTE are completely unlocked, in most instances you can take the phone and use it on AT&T or T-Mobile US. That said, when it comes to LTE specifically, these devices often do not have all of the LTE bands supported by T-Mobile and AT&T so on them they will often only work on GSM (2G) or UMTS (3G).
The reason the US Cellular variant won't work on AT&T or T-Mobile is because it looks like US Cellular didn't care about giving their customers the capability to roam internationally with their variant of the S5 - meaning they had the phone made in such a way that it doesn't support any GSM or UMTS bands at all.
myphone12345 said:
Sorry to sound harsh but what you're saying is complete nonsense. Verizon did not (and is not planning on a) switch to GSM. They were, and still are a CDMA carrier.
The reason Verizon devices support GSM is so that their customers can roam in countries outside the US, some of which happen to use the same GSM frequencies as AT&T and T-Mobile do in the US (and therefore, by extension, support these two carriers domestically). And since all Verizon devices which include support for LTE are completely unlocked, in most instances you can take the phone and use it on AT&T or T-Mobile US. That said, when it comes to LTE specifically, these devices often do not have all of the LTE bands supported by T-Mobile and AT&T so on them they will often only work on GSM (2G) or UMTS (3G).
The reason the US Cellular variant won't work on AT&T or T-Mobile is because it looks like US Cellular didn't care about giving their customers the capability to roam internationally with their variant of the S5 - meaning they had the phone made in such a way that it doesn't support any GSM or UMTS bands at all.
Click to expand...
Click to collapse
calm down dude, i'm only passing on information that was provided to me by the local verizon store manager and unless your a verizon employee im gonna go with what im told by a verizon employee
cstayton said:
calm down dude, i'm only passing on information that was provided to me by the local verizon store manager and unless your a verizon employee im gonna go with what im told by a verizon employee
Click to expand...
Click to collapse
I can tell you with 100% certainty that the person you talked to has no clue whatsoever (and Lord help Verizon if that is the level of technical understanding of their store managers ).
My suspicion as to where the confusion is coming from is that at some point in the future Verizon will stop putting CDMA radios in their devices and rely solely on VoLTE (voice over LTE) technology to provide voice services (currently most voice calls on Verizon are carried on their CDMA network). However, that certainly doesn't mean that they will be shutting off their CDMA service anytime in the foreseeable future .since they will still have a lot of legacy devices whose voice support will only be on CDMA. Nor does it mean that they are switching over to GSM, which is certainly not something they are planning on doing.
myphone12345 said:
I can tell you with 100% certainty that the person you talked to has no clue whatsoever (and Lord help Verizon if that is the level of technical understanding of their store managers ).
My suspicion as to where the confusion is coming from is that at some point in the future Verizon will stop putting CDMA radios in their devices and rely solely on VoLTE (voice over LTE) technology to provide voice services (currently most voice calls on Verizon are carried on their CDMA network). However, that certainly doesn't mean that they will be shutting off their CDMA service anytime in the foreseeable future .since they will still have a lot of legacy devices whose voice support will only be on CDMA. Nor does it mean that they are switching over to GSM, which is certainly not something they are planning on doing.
Click to expand...
Click to collapse
well like i said was info passed on by a verizon store manager so take that as you may im not a verizon customer nor will i be since they dont provide coverage where i need it.
Thanks for the info. I ended up selling the phone on ebay and now the guy wants to send it back claiming it's only unlocked for us cellular. I told him it should work on any cdma network, but they might have to flash it on their network. Oh well, if all else fails, I can use it to download movies and stream to the TV! Lol.
I'll install Kodi on it and use it as a media center.
Lol
cstayton said:
Verizon switched to GSM thats why there devices will ocasionally work as long as the freqs are the same (some arent)
they still also have CDMA/EVDO configs as well since their network is still supporting both once they complete the switch over (from what ive been told mid to late 2016) they will no longer support any CDMA devices.
Click to expand...
Click to collapse
I'm just gonna LMAO to this reply. Lol. It's an old thread but I'm assuming you have done some research and realize your answer is wrong pertaining to Verizon and GSM. Have a great day.
Not sure if this is the correct forum but I can't seem to find anything about using VZ G4 on T-mobile? I don't mind if it need to be rooted, just want a stable setting that I can do. TIA.
Unless something has changed lately, you can't. Verizon uses CDMA for its voice network and T-Mobile uses GSM.
With that being said, the only way I've seen any Verizon phone being used on a GSM network is if the phone supports a SIM card (and I'm not sure the SIM card for the LTE counts) and the phone is unlocked to use international SIM cards (which, by default, will allow it to use T-Mobile). There's a catch to that, however. You may not be able to use the optimum frequencies T-Mobile uses if the Verizon phone doesn't support them, which may cause a less than desirable experience with your phone.
An unlocked AT&T G4 would be a better bet. Some international versions of the phone may also be better than the Verizon version. You'll have to do some research on the last one.
In the past I know Verizon would let their cdma/gsm phones work with international sim cards but not att or t-mobile. The verizon g4 supports lte bands 2 and 4 and that's the two main bands that t-mobile uses. It's not clear from the tech specs if the phone supports wcdma but if it does not you might drop to edge while on a call.
like tkirton said you would be much better off with a phone that's intended mainly for GSM. t-mobile branded phones, newer nexus phones(6 and later), and the iphone also have the advantage of volte and wifi calling.
My Verizon G2 worked on T-Mobile and Cricket which as both GSM. I got LTE also, but you'll loose LTE on calls, and probably won't have HD voice. So, G4 might be the same.
MicroMod777 said:
My Verizon G2 worked on T-Mobile and Cricket which as both GSM. I got LTE also, but you'll loose LTE on calls, and probably won't have HD voice. So, G4 might be the same.
Click to expand...
Click to collapse
i can backup/confirm this, i was using the G2 (VS980 Verizon) with T-mobile and i was getting nice LTE Speed in my area but loose some T-Mo features of course....