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[Q] Can at&t Nexus One work on T-Mobile?

I'm on at&t. I have an N1 that I bought full price, off-contract.
I've now purchased a Nexus S and planned on giving my Nexus 1 to my girlfriend who's on T-Mobile. I *thought* the phone was supposed to be unlocked but there's obviously lots of confusion about what "unlocked" means.
I've found that t-mobile N1's wont work on at&t 3g, but I've found nothing concerning the other way around.
Could someone give me a clue if this will work?

The phone will work fine, but only on EDGE speeds. There are two different phones because T-Mobile and AT&T use two different frequencies for their 3G networks.

Please read the FAQ, question 13.

Why would you think it could work one way and not the other? If it cant work on at&t because of hardware the same rules apply the other way around otherwise there one only be one model.

Thanks for the replies.
So is there a way I can get this at&t unit to work fully on t-mobile? It appears not. I feel mislead.

cozbaldwin said:
Thanks for the replies.
So is there a way I can get this at&t unit to work fully on t-mobile? It appears not. I feel mislead.
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no, there is no way to get it to get 4g speeds
you need the tmo nexus 1
the att versions are somewhat rare btw...

icon57 said:
no, there is no way to get it to get 4g speeds
you need the tmo nexus 1
the att versions are somewhat rare btw...
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Nexus One is not capable of "4G" speeds anyways, not matter what network / device model you use. It has a theoretical max download of 7.2Mbps and does not utilize a HSPA+ radio which is required to access Tmo / AT&T's "4G" network.

Rod3 said:
Nexus One is not capable of "4G" speeds anyways, not matter what network / device model you use. It has a theoretical max download of 7.2Mbps and does not utilize a HSPA+ radio which is required to access Tmo / AT&T's "4G" network.
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yes true, my bad i meant to say 3g
the att model is limited to 2g only when on tmo network

[Q] Sprint HTC One on Verizon?

Has anyone tried paying full price for an HTC One at a Sprint Store and then sticking a Verizon LTE SIM in it? The specs seem to indicate that it supports LTE band 13 that Verizon uses and the 850/1900 cdma bands that is uses?

Deleted

You will not get LTE on verizon with a sprint phone.
You could do an esn swap to get 3g and voice if you wanted.

gnex4ever said:
Has anyone tried paying full price for an HTC One at a Sprint Store and then sticking a Verizon LTE SIM in it? The specs seem to indicate that it supports LTE band 13 that Verizon uses and the 850/1900 cdma bands that is uses?
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If you buy a device at full price its no different than a device bought on contract. At least that's how it is in our preferred store and the same applies to corporate as far as I know. It's no like an apple store where you can request an unlocked device. You'd still have to request to have it unlocked by Sprint international. Also considering the 1900 band is the only band that crosses over between sprint and verizon I really don't see the value. Maybe it's just me in my area but roaming is even more useless than the 0.9mb/s I get on sprint.

Darkendvoid88 said:
If you buy a device at full price its no different than a device bought on contract. At least that's how it is in our preferred store and the same applies to corporate as far as I know. It's no like an apple store where you can request an unlocked device. You'd still have to request to have it unlocked by Sprint international. Also considering the 1900 band is the only band that crosses over between sprint and verizon I really don't see the value. Maybe it's just me in my area but roaming is even more useless than the 0.9mb/s I get on sprint.
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The HTC ONE, like nearly all modern smartphones is capable of operating on multiple frequencies, network types and communications technologies. However, my assumption is that the Sprint version is carrier locked to prevent use on other networks by default. Not sure that their unlocking process would open the phone to other networks.

gnex4ever said:
Has anyone tried paying full price for an HTC One at a Sprint Store and then sticking a Verizon LTE SIM in it? The specs seem to indicate that it supports LTE band 13 that Verizon uses and the 850/1900 cdma bands that is uses?
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You wouldn't be able to straight up put in a Verizon LTE SIM and expect it to work that would be too easy.
I would guess it's possible, but you would need a donor LTE phone. Based on looking in the HTC EVO 4g LTE forums people have put that phone on another carrier and used a donor 3g phone to get 3g working. Same could most likely be possible for the HTC One. I guess if you have enough money to buy this phone outright as well as have a donor LTE phone you can probably pay someone to do this. Only limitation would be that the 16 digit password for some programs to write specific information is most likely not available yet.

Verizon HTC 1 to T-mobile

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.
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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.
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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.
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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.
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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.
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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
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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.
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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:
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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! >.<
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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:
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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?
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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.
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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
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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 ?*

Can CDMA S5 work on AT&T?

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.
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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.
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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;
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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.
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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.
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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
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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.
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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.
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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.

T-Mobile Note 4 on Sprint?

I was wondering, since we can apparently pic WCDMA frequencies, could we actually use our t-mobile note 4 on a WCDMA network such as Verizon or Sprint? Or even boost mobile? Please let me know if you think we can or cannot. I am under the assumption that we cannot because we are a GSM network therefore we probably have a GSM phone but not sure if we are actually picking up or or has the ability to pick up those type of towers. I am also attaching a picture so that you can see what I am talking about.

You gave the answer to the question you asked. Correct it cannot. The phone itself will be able to run on any network in the world, it just has to be unlocked in order to activate all bends on all networks
Sent from my SM-N910T3 using Tapatalk

So....we can use it with sprint?

I can confirm that Tmobile's n4 works on verizon