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Sprint iDen 800mhz -> Sprint CDMA/LTE 800mhz and the One

So, according to HTC.com and Phonescoop.com, the radio for the Sprint version will have 1900mhz LTE, just as with the HTC Evo 4G LTE. Sprint is supposedly rolling out 800mhz LTE (former Nextel iDen) in the 2nd half of 2013. Question is, can the radio be modified via software to have 800mhz LTE, or is this a hardware issue?
Anyone know?
Thanks!

aschlect said:
So, according to HTC.com and Phonescoop.com, the radio for the Sprint version will have 1900mhz LTE, just as with the HTC Evo 4G LTE. Sprint is supposedly rolling out 800mhz LTE (former Nextel iDen) in the 2nd half of 2013. Question is, can the radio be modified via software to have 800mhz LTE, or is this a hardware issue?
Anyone know?
Thanks!
Click to expand...
Click to collapse
What a mess most of their customers will have, IMO stupid decision. Most people to use this network will need to replace their phones, and it means for you, that you have a decision to make on your LTE future, one which phone you buy or change provider, second option probably the best.
Please note that the Snapdragon 600 chipset does not have any modem support on chip, therefore additional hardware radios are added per requirement. HTC should have gone for the Snapdragon 800 which has a modem that supports LTE as well.
And in short, no you can't just change, it is hardware. However, towards the end of the year hopefully all phones will start to use the Qualcomm chipset announced yesterday which covers all bands worldwide.
HSPA/WCDMA:
Europe/Asia: 850/900/1900/2100 MHz
GSM/GPRS/EDGE:
850/900/1800/1900 MHz
LTE:
EU: 800/1800/2600 MHz
US (AT&T): 700/850/AWS/1900 MHz
US (TMO): 700/AWS MHz
US (Sprint): 1900 MHz
Asia: 1800/2600 Mhz

Re: Sprint iDen 800mhz -> Sprint CDMA/LTE 800mhz and the One
Ok thanks for the clarification that's what I was thinking. Perhaps Sprint will go ahead and pre-load the LTE radio for the former iDen 850 spectrum, and activate it with a firmware update. That's all I can hope for I guess.
Sent from my EVO using xda app-developers app

I read something in this thread about the new Sprint ver One having 800/1900Mhz LTE radio....does this apply here?
http://forum.xda-developers.com/showthread.php?p=38426723

thebbbrain said:
I read something in this thread about the new Sprint ver One having 800/1900Mhz LTE radio....does this apply here?
http://forum.xda-developers.com/showthread.php?p=38426723
Click to expand...
Click to collapse
Very interesting. Not sure what is going on, also not sure if HTC has any clue what is going on. There website is obviously wrong or not up to date. Still doesn't list 800MHz in US.

Looks like the One will only have Sprint band 25 LTE (1900). At least from the FCC figures.
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SVDO is also missing, so no simultaneous 3G and voice. Understandably, though, with the LTE network increase.

Have gone from S1 to S2 with sprint, might go with HTC One instead of S4.
Does only one band of LTE on the phone mean there could be some towers that use the band not included in the phone, so I would only get 3g?

ajent said:
Have gone from S1 to S2 with sprint, might go with HTC One instead of S4.
Does only one band of LTE on the phone mean there could be some towers that use the band not included in the phone, so I would only get 3g?
Click to expand...
Click to collapse
Do you have problems with Sprint now? are you using LTE currently?
Your LTE coverage will only be as good as how many 1900Mhz towers Sprint has around. If sprint doesn't have a tower in your phones range for LTE then you will only get 3G
If you travel a lot with roaming, then you will most likely want the AT&T model which covers most of greater America. If you get LTE while roaming will depend on Sprint and other Carriers agreements, otherwise yes your option will be 3G.

Thanks, I wasn't sure if their towers would have both bands or just 1, I wasn't sure why the phone only having 1900Mhz would matter.
I don't have an LTE phone, but I do have wimax coverage in Daytona, LTE is supposedly on the way. My work forces me to travel a lot, don't get to use 4g much anyway, I'm heavily dependent on roamcontrol, with a hacked PRL I make due with us cellular's 3g usually. When I am in Houston/Daytona I would like my LTE phone to have proper coverage though ;P

Re: Sprint iDen 800mhz -> Sprint CDMA/LTE 800mhz and the One
ajent said:
Thanks, I wasn't sure if their towers would have both bands or just 1, I wasn't sure why the phone only having 1900Mhz would matter.
I don't have an LTE phone, but I do have wimax coverage in Daytona, LTE is supposedly on the way. My work forces me to travel a lot, don't get to use 4g much anyway, I'm heavily dependent on roamcontrol, with a hacked PRL I make due with us cellular's 3g usually. When I am in Houston/Daytona I would like my LTE phone to have proper coverage though ;P
Click to expand...
Click to collapse
What's this I hear about a hacked PRL? Wanna let me in on that?
LTE coverage is great throughout Houston. It gets weak and sometimes drops to 3G when in buildings though.
Sent from my GT-N8013 using Tapatalk HD

ajent said:
Have gone from S1 to S2 with sprint, might go with HTC One instead of S4.
Does only one band of LTE on the phone mean there could be some towers that use the band not included in the phone, so I would only get 3g?
Click to expand...
Click to collapse
Yes you are thinking correctly, however Sprint's 1900mhz is pretty comprehensive, in fact, I believe Sprint has more 1900mhz spectrum than any other carrier (hence why Sprint used to be 'Sprint PCS', referencing the PCS 1900mhz band), and far more 1900mhz spectrum than the old iDen 800mhz. You should not have any problems whatsoever.

Ill just be glad when they roll out 800mhz 3g..which this phone does have suport for. If they finally get around to upgrading the 3g here in Houston then I wont mind as much when the connection drops down. As such, the way it is right now, 3g is nigh on unusable, and sometimes so is 4g.

danw_oz said:
Please note that the Snapdragon 600 chipset does not have any modem support on chip, therefore additional hardware radios are added per requirement. HTC should have gone for the Snapdragon 800 which has a modem that supports LTE as well.
Click to expand...
Click to collapse
It has nothing to do with the modem. The One has a separate Qualcomm MDM9x15 modem which is not that much different than the modem that's integrated into the Snapdragon 800. It has plenty of ports which could handle another LTE band if one could be "fed" to it.
The issue is the front end RF stuff. Due to the uniqueness of the 800MHz LTE band that will be used by Sprint, it's difficult at this point to source the necessary antenna switches and transceivers and other front end RF components that will handle that specific 800Mhz LTE band.
My guess is that you won't see any ESMR800 LTE phones come out before Q3 or Q4 and it's also probably at least six months at this point before Sprint starts to deploy the technology commercially.

greengoldmello said:
Ill just be glad when they roll out 800mhz 3g..which this phone does have suport for. If they finally get around to upgrading the 3g here in Houston then I wont mind as much when the connection drops down. As such, the way it is right now, 3g is nigh on unusable, and sometimes so is 4g.
Click to expand...
Click to collapse
They are not going to roll-out EVDO on 800 MHz, only voice/1x, and a 5x5 LTE carrier.

That is not what I have heard from multiple Sprint reps about EVDO on the 800mhz. I was told, very recently in fact, that the voice/EVDO would be rolled out to the 800mhz, well before any LTE bands were activated in that spectrum. That Sprint was pushing for better penetration for voice and EVDO signals through the 800mhz spread, and that LTE would be focused on the 1900mhz for the time being.

Gaigebacca said:
That is not what I have heard from multiple Sprint reps about EVDO on the 800mhz. I was told, very recently in fact, that the voice/EVDO would be rolled out to the 800mhz, well before any LTE bands were activated in that spectrum. That Sprint was pushing for better penetration for voice and EVDO signals through the 800mhz spread, and that LTE would be focused on the 1900mhz for the time being.
Click to expand...
Click to collapse
According to this article:
http://www.lightreading.com/sprint/sprint-to-dial-800-for-lte-in-q4/240153521
"We expect to deploy LTE on 800MHz in the fourth quarter," said Steve Elfman, president of network operations and wholesale at Sprint on the call.
Nonetheless, Sprint is clearing the way for LTE integration with WiMax partner Clearwire. Hesse said he expects Clearwire's fast 4G service to start arriving late in the third quarter with "TD-LTE, multi-band devices."
With so many different chunks of frequency to support, Sprint will need these devices to switch between 2.5GHz, 800MHz and 1900MHz to get around the network.

ilusnforc said:
With so many different chunks of frequency to support, Sprint will need these devices to switch between 2.5GHz, 800MHz and 1900MHz to get around the network.
Click to expand...
Click to collapse
That's not that unusual and really not that big of a deal for the the radios to handle in the upcoming devices.
In any case, working with multiple bands is fairly commonplace. Look at Verizon and AT&T for example which operate four different bands.

Wow
This has to be the most technical thread I have ever read Where do you folks obtain all this knowledge?

Does The HTC One Dev Edition Have Quad Band???

Hi,
As the title implies, is the htc one dev phone quad band? and if not, is any htc one quad band? of course they are locked down to use certain frequencies and what not to specific carriers.
Thing Im getting at is... if it indeed does have quad band then there is room for devs to find a way for people like me to get LTE on t-mobile and not just 3G. Unfortunately, the devs phone tend to favor ATT and leaves t-mobile hanging when it comes to 4G.
Many thanks,
Tim

Becool0130 said:
Hi,
As the title implies, is the htc one dev phone quad band? and if not, is any htc one quad band? of course they are locked down to use certain frequencies and what not to specific carriers.
Thing Im getting at is... if it indeed does have quad band then there is room for devs to find a way for people like me to get LTE on t-mobile and not just 3G. Unfortunately, the devs phone tend to favor ATT and leaves t-mobile hanging when it comes to 4G.
Many thanks,
Tim
Click to expand...
Click to collapse
I have been told that when a radio is available then we could flash it. But I haven't been able to confirm this and I too want to know about this. 1700mhz band is what Tmobile uses. This really could be the difference between me getting an S4 and this phone.

I believe that the dev edition out of the box will not support 1700 for TMO but I also believe that is a software limitation and not a hardware one as I believe it is the same hardware as the at&t version.
MG

Becool0130 said:
Hi,
As the title implies, is the htc one dev phone quad band? and if not, is any htc one quad band? of course they are locked down to use certain frequencies and what not to specific carriers.
Thing Im getting at is... if it indeed does have quad band then there is room for devs to find a way for people like me to get LTE on t-mobile and not just 3G. Unfortunately, the devs phone tend to favor ATT and leaves t-mobile hanging when it comes to 4G.
Many thanks,
Tim
Click to expand...
Click to collapse
Dev version has same frequency as AT&T version
HSPA/WCDMA:
Europe/Asia: 850/900/1900/2100 MHz
GSM/GPRS/EDGE:
850/900/1800/1900 MHz
LTE:
US (AT&T): 700/850/AWS/1900 MHz
3G for Tmobile is not supported but I guess 4G is supported because it has AWS

1900 mhz is t-mobile 3G network it will have 3G but no 4G. Unless the devs get there hands on the 1700 soon.
My other question still applies from above. Is this phone indeed a quad band one?
Thanks
Sent from my SGH-T959 using xda app-developers app

Becool0130 said:
1900 mhz is t-mobile 3G network it will have 3G but no 4G. Unless the devs get there hands on the 1700 soon.
My other question still applies from above. Is this phone indeed a quad band one?
Thanks
Sent from my SGH-T959 using xda app-developers app
Click to expand...
Click to collapse
Anyone know for a fact that a radio flash would enable 1700?

I couldn't find exact specs, but the report on ifixit (can't post link) tells that there is a Qualcomm MDM9215M Communications Chip for GSM/UMTS/LTE. The other chip TriQuint TQM7M9023 is for Quad Band usage, GSM etc.
I am trying to find out, which Frequencies this chip supports.
I want to buy the US Dev Edition 64GB for use in Europe and I am still hoping that flashing a new radio rom is a work-around to get it working everywhere.
Maybe somebody has already done it?

Becool0130 said:
1900 mhz is t-mobile 3G network it will have 3G but no 4G. Unless the devs get there hands on the 1700 soon.
Click to expand...
Click to collapse
It's actually 7-band (700/850/900/AWS/1800/1900/2100)... but not all bands are available for all technologies. Here is what you get:
HSPA/WCDMA: 850/1900/2100 MHz - This will give you 3G support on AT&T and MAY give you 3G/4G support on T-Mobile, but only in the limited areas where T-Mobile has already migrated their 1900MHz spectrum to HSPA+. In most areas, their 3G/4G service is limited to the AWS band which the HTC One Developer Edition only supports for LTE.
GSM/GPRS/EDGE: 850/900/1800/1900 MHz - This will give you 2G/2.5G support on pretty much every GSM provider.
LTE: 700/850/AWS/1900 MHz - This will give you 4G LTE support on AT&T and T-Mobile.

Cloudscout said:
It's actually 7-band (700/850/900/AWS/1800/1900/2100)... but not all bands are available for all technologies. Here is what you get:
HSPA/WCDMA: 850/1900/2100 MHz - This will give you 3G support on AT&T and MAY give you 3G/4G support on T-Mobile, but only in the limited areas where T-Mobile has already migrated their 1900MHz spectrum to HSPA+. In most areas, their 3G/4G service is limited to the AWS band which the HTC One Developer Edition only supports for LTE.
GSM/GPRS/EDGE: 850/900/1800/1900 MHz - This will give you 2G/2.5G support on pretty much every GSM provider.
LTE: 700/850/AWS/1900 MHz - This will give you 4G LTE support on AT&T and T-Mobile.
Click to expand...
Click to collapse
Hi, T-mobile uses band 4 via 1700/2100. Also the 3G support. And tmobile HSPA must use 1700/2100 BOTH or it wont work which makes T-mobile 3g unavailable till 1900 is completed.
But perhaps when it says "AWS" maybe it means band 4 ? is that what your referring to? if so I stand corrected. Then again, LTE 4G is in so little places now.. lets not compute it -_-

Correct. Band 4 is AWS.

Anybody knows if i could use LTE in Spain with my Dev Edition

The One Developer Edition also includes support for 850/1900/2100 MHz HSPA and 700/850/AWS/1900 MHz 4G LTE connectivity
Sent from my HTC One using xda app-developers app

HTC One have T-Mobile hspa+?

Does the HTC One have hspa+ on T-Mobile? It doesn't have the 1700 band. I live in an area that doesn't have LTE but has hspa+ and hasn't refarmed the 1900 band so I would be stuck on 2g in this case?

Yes, you would be stuck with edge (2g) until the reframed network is live. Purchase the device from T-Mobile, it will have the 1700 band

mouzaihem said:
Yes, you would be stuck with edge (2g) until the reframed network is live. Purchase the device from T-Mobile, it will have the 1700 band
Click to expand...
Click to collapse
Yes, that's what I was asking. So the T-Mobile version of HTC One has the 1700 band and will work with hspa+? I can't find the specs for the t-mo version anywhere. I guess we'll know for sure when it actually comes out.

MrMinh said:
Yes, that's what I was asking. So the T-Mobile version of HTC One has the 1700 band and will work with hspa+? I can't find the specs for the t-mo version anywhere. I guess we'll know for sure when it actually comes out.
Click to expand...
Click to collapse
2G/2.5G - GSM/GPRS/EDGE:
850/900/1800/1900 MHz
3G - UMTS/ HSPA:
Europe/ Middle East/ Africa: : 900/1900/2100 MHz with HSDPA up to 42 Mbps
Asia: 850/900/1900/2100 MHz with HSDPA up to 42 Mbps
Canada/ Latin America: 850/1900/2100 MHz up to HSDPA 42 Mbps
T-Mobile (US): 850/ AWS/1900/2100 MHz with HSDPA up to 42 Mbps
AT&T: 850/1900/2100 MHz with HSDPA up to 21 Mbps
Sprint: 1900/2100 MHz with HSDPA up to 14.4 Mbps
3G - CDMA:
800/1900 MHz for Sprint
4G - LTE:
Europe/ Middle East/ Africa: 800/1800/2600 MHz
Asia: 1800/2600 MHz
T-Mobile (US)/ AT&T/ Canada/ Latin America: 700 MHz and AWS band
Sprint: 1900 MHz

MrMinh said:
Yes, that's what I was asking. So the T-Mobile version of HTC One has the 1700 band and will work with hspa+? I can't find the specs for the t-mo version anywhere. I guess we'll know for sure when it actually comes out.
Click to expand...
Click to collapse
Yes, it indeed will.

MrMinh said:
Does the HTC One have hspa+ on T-Mobile? It doesn't have the 1700 band. I live in an area that doesn't have LTE but has hspa+ and hasn't refarmed the 1900 band so I would be stuck on 2g in this case?
Click to expand...
Click to collapse
of course the tmobile version will have the 1700 band. why wouldnt they? they dont want people be on 2g speeds now...
You probably looked at the dev edition (which is a att version).

Problem with TMobile phone is the 32gb ;/
I would love to get my hands on 64gb HTC One but it doesn't have the hspa+ aka 1700 band
Now I have been told you might be able to flash a radio but it has yet to be confirmed whether this is really possible or not.
Sadly I will be force to buy a S4 because of this issue. Unless someone can confirm hspa+ radio can be flashed on Dev Edition

F9zSlavik said:
Problem with TMobile phone is the 32gb ;/
I would love to get my hands on 64gb HTC One but it doesn't have the hspa+ aka 1700 band
Now I have been told you might be able to flash a radio but it has yet to be confirmed whether this is really possible or not.
Sadly I will be force to buy a S4 because of this issue. Unless someone can confirm hspa+ radio can be flashed on Dev Edition
Click to expand...
Click to collapse
I really hope someone creates a mod to Enable the Tmobile AWS band on the Unlocked HTC One, similiar to what they did for the ATT Galaxy Note 2. These high end phones have the hardware to work on the the various gsm frequencies, but they come disabled. Someone was able to figure it out on the galaxy note 2, but I have been searching and I don't see anyone working on a similiar solution for the HTC One. I guess time will tell. I've ordered an unlocked HTC One, and will test to see if I get 4g LTE in Chicago which is listed as a 1900 refarmed area. The consensus seems to be that if i'm in an area that does not have 4g lte i'll be reduced to 2g Edge speeds. This my friends...would suck donkey balls.

bboylito said:
I really hope someone creates a mod to Enable the Tmobile AWS band on the Unlocked HTC One, similiar to what they did for the ATT Galaxy Note 2. These high end phones have the hardware to work on the the various gsm frequencies, but they come disabled. Someone was able to figure it out on the galaxy note 2, but I have been searching and I don't see anyone working on a similiar solution for the HTC One. I guess time will tell. I've ordered an unlocked HTC One, and will test to see if I get 4g LTE in Chicago which is listed as a 1900 refarmed area. The consensus seems to be that if i'm in an area that does not have 4g lte i'll be reduced to 2g Edge speeds. This my friends...would suck donkey balls.
Click to expand...
Click to collapse
Same here. I ordered the unlocked ONE. I live in Houston which is refarmed 1900 also with lte. Had I known my dam phone would be delayed again I would have just waited for the tmobile version.

bboylito said:
I really hope someone creates a mod to Enable the Tmobile AWS band on the Unlocked HTC One, similiar to what they did for the ATT Galaxy Note 2. These high end phones have the hardware to work on the the various gsm frequencies, but they come disabled. Someone was able to figure it out on the galaxy note 2, but I have been searching and I don't see anyone working on a similiar solution for the HTC One. I guess time will tell. I've ordered an unlocked HTC One, and will test to see if I get 4g LTE in Chicago which is listed as a 1900 refarmed area. The consensus seems to be that if i'm in an area that does not have 4g lte i'll be reduced to 2g Edge speeds. This my friends...would suck donkey balls.
Click to expand...
Click to collapse
Your last statement about 4G LTE and 2G Edge speeds isn't necessarily true. I live in LA and we don't have LTE for T-mobile yet, however T-mobile has refarmed many of their towers around here to use the 1900MHz band so that you can get HSPA+ on phones that don't have 1700MHz support (like many AT&T phones and unlocked phones, like the HTC One Developer Edition). I received my HTC One Developer Edition today and drove around a bit here. While my phone doesn't have 1700MHz support, the screen still showed "H" for HSPA+ everywhere I went, and I tested speeds as high as around 9000kbps download. So being able to get 1900MHz HSPA+ is not tied directly to if an area has LTE or not.

Haven't seen anyone talk about GSM Sim ! Discuss away

HTC One on the Sprint seem to be a world phone. It does have a Sim Card slot available.
Most likely Sprint will be locking the sim on all US carriers and would allow you to call in to unlock the sim portion for international use. I wonder when they will allow you to do this? Iphone users usually need to wait 90 days (active account) in order to unlock the sim.
Let's hear who has done this in the next week or two.

I can confirm that the Sprint version is simlocked. I put my sim in and it said simlock activated contact customer care.
Sent from my SGH-T889 using xda premium

I know it has the unlock codes for PIN1/PUK1 on your account. Don't know about truly unlocking it.

This is pretty exciting. Where is the SIM slot on the phone? I can't find it in any of the pictures... is it hidden behind a button that pops up or something?
---------- Post added at 02:53 PM ---------- Previous post was at 02:51 PM ----------
Oh and nice avatar chazybaz

agent0014 said:
This is pretty exciting. Where is the SIM slot on the phone? I can't find it in any of the pictures... is it hidden behind a button that pops up or something?
---------- Post added at 02:53 PM ---------- Previous post was at 02:51 PM ----------
Oh and nice avatar chazybaz
Click to expand...
Click to collapse
It's on the left side towards the top. Funny thing is, the Sprint version doesn't come with a SIM removal tool.

eXplicit815 said:
Funny thing is, the Sprint version doesn't come with a SIM removal tool.
Click to expand...
Click to collapse
Who would have ever guessed? A pair of tweezers won't do the trick?
Sent from my GT-N8013 using Tapatalk 2

So once I call customer service to unlock, I should be able to buy a prepaid SIM in canada and just pop it in? I'd have a new number, but I'm fine with that. I just want to play ingress in Toronto LOL.

Still not sure what GSM bands it is capable of. It's been said elsewhere that it is just GSM 900/1800 capable.

It's not for GSM, but for LTE.
Please read the reviews.

eXplicit815 said:
It's on the left side towards the top. Funny thing is, the Sprint version doesn't come with a SIM removal tool.
Click to expand...
Click to collapse
I knew my old IPhone tools would come in handy someday.

Everytime a new device comes out we seem to have the same discussion about SIM cards.
When are we going to finally understand Sprint phones work out of a funky frequency that GMS carriers don't pick up. So no your SIM card won't work on this phone.
Sent from my HTC One using xda app-developers app

It has support for a couple of odd bands. Won't do you much use though.
Sent from my EVO using Tapatalk 4 Beta

It supports the most common euro bands...
Sent from my Nexus 10 using Tapatalk HD

the HTC ONE supports all GSM frequencies making it a world phone capable of using local SIM in other countries. Thanks.

kams01 said:
the HTC ONE supports all GSM frequencies making it a world phone capable of using local SIM in other countries. Thanks.
Click to expand...
Click to collapse
How sure are you about this ? Can you point us to an official link which confirms that?
Also is the gsm bands pre-unlocked for outside states use ?

dev997 said:
How sure are you about this ? Can you point us to an official link which confirms that?
Also is the gsm bands pre-unlocked for outside states use ?
Click to expand...
Click to collapse
http://www.htc.com/us/smartphones/htc-one/#specs
see the section about 2G/2.5G GSM:
"2G/2.5G - GSM/GPRS/EDGE:
850/900/1800/1900 MHz
3G - UMTS/ HSPA:
Europe/ Middle East/ Africa: 900/1900/2100 MHz with HSDPA up to 42 Mbps
Asia: 850/900/1900/2100 MHz with HSDPA up to 42 Mbps"
I am looking into the unlocked portion and will respond shortly.

kams01 said:
http://www.htc.com/us/smartphones/htc-one/#specs
see the section about 2G/2.5G GSM:
"2G/2.5G - GSM/GPRS/EDGE:
850/900/1800/1900 MHz
3G - UMTS/ HSPA:
Europe/ Middle East/ Africa: 900/1900/2100 MHz with HSDPA up to 42 Mbps
Asia: 850/900/1900/2100 MHz with HSDPA up to 42 Mbps"
I am looking into the unlocked portion and will respond shortly.
Click to expand...
Click to collapse
Unfortunately, I doubt that this applies to the Sprint version. The reason I say this is because generally if a device has the technical capability of operating on bands that are available in the US, it needs to be tested and approved by the FCC for those bands (even if the carrier distributing the phone doesn't operate on those frequencies). However, the One did not undergo such testing. Same holds true for the UMTS 1900 band. Therefore, from a GSM/UMTS perspective, it appears that the device is good mostly for roaming in Europe and some Asian countries (and even then, not perfectly since there some carriers which supplement UMTS service with UMTS 900, which apperantly the Sprint Variant doesn't do either). The ostensible lack of GSM 850 / GSM 1900 and UMTS 850, UMTS 900 and UMTS 1900 does mean that the phone will not GSM roam in most of the Western Hemiphere as well as certain countries/carriers in Asia unfortunately.

kams01 said:
http://www.htc.com/us/smartphones/htc-one/#specs
see the section about 2G/2.5G GSM:
"2G/2.5G - GSM/GPRS/EDGE:
850/900/1800/1900 MHz
3G - UMTS/ HSPA:
Europe/ Middle East/ Africa: 900/1900/2100 MHz with HSDPA up to 42 Mbps
Asia: 850/900/1900/2100 MHz with HSDPA up to 42 Mbps"
I am looking into the unlocked portion and will respond shortly.
Click to expand...
Click to collapse
Yeah that's not the sprint version there bud, that's the international version... Hence the lack of LTE mention... Ad other poster mentioned... Less the freq was tested during FCC testing..... Good luck getting it to work on a carrier that supports freq not tested at FCC testing when they tested the Sprint version.... Same can be said for the international version coming and working on sprint... Same as why the sprint one won't work on VZ LTE... Diff freq.
Sent from my EVO using Tapatalk 2

sgt. slaughter said:
Yeah that's not the sprint version there bud, that's the international version... Hence the lack of LTE mention... Ad other poster mentioned... Less the freq was tested during FCC testing..... Good luck getting it to work on a carrier that supports freq not tested at FCC testing when they tested the Sprint version.... Same can be said for the international version coming and working on sprint... Same as why the sprint one won't work on VZ LTE... Diff freq.
Sent from my EVO using Tapatalk 2
Click to expand...
Click to collapse
if you read closely, HTC is listing all common features on the phone, then splits it into carrier specific frequencies: All HTC ONE's support the 2G/2.5G frequencies for GSM, just like previously the Motorola Photon 4G and HTC Design 4G, iPhone 4S/5. the UMTS/HSPA then has some carrier specific limitations and then of course every LTE carrier has different frequencies, hence different SKU's for each carrier. I personally have used the HTC Design 4G abroad before without any issue. I hope this helps.
2G/2.5G - GSM/GPRS/EDGE:
850/900/1800/1900 MHz
3G - UMTS/ HSPA:
Europe/ Middle East/ Africa: 900/1900/2100 MHz with HSDPA up to 42 Mbps
Asia: 850/900/1900/2100 MHz with HSDPA up to 42 Mbps
Canada/ Latin America: 850/1900/2100 MHz up to HSDPA 42 Mbps
T-Mobile (US): 850/ AWS/1900/2100 MHz with HSDPA up to 42 Mbps
AT&T: 850/1900/2100 MHz with HSDPA up to 21 Mbps
Sprint: 1900/2100 MHz with HSDPA up to 14.4 Mbps
3G - CDMA:
800/1900 MHz for Sprint
4G - LTE:
Europe/ Middle East/ Africa: 800/1800/2600 MHz
Asia: 1800/2600 MHz
T-Mobile (US)/ AT&T/ Canada/ Latin America: 700 MHz and AWS band
Sprint: 1900 MHz

I bought a One the other day assuming I could use it with a pay as you go SIM from a canadian provider when I make my somewhat frequent trips to Toronto. Can someone absolutely confirm or deny that I'll be able to do that? If not, I might go the 14 day return policy route and return it :-/

[Q] (SOLVED )HTC One M8 HK version - changing UMTS band

I am having HTC One M8 HK edition, S-OFF from Sprint. I have unlocked the SIM few days back and GSM is working fine and I am accessing 2G mobile internet (EDGE) without any issue.
Now my problem is, I am not able to get 3G signal and even I tried in the manual network search mode with no luck. I bought this phone after checking its band support in gsmarena which shows Sprint M8 supports HSDPA 850 / 1900 / 2100. I know in US all UMTS networks have 1900 band and I am in India and here we have only UMTS 2100 band.
Now my questions are:
1. Though the phone supports UMTS 2100 band, I am not able to use it. Is it because Sprint firmware does not have allowed it because its not usable in US?
2. By flashing a different firmware (by changing Model ID) will I be able to access 3G?
3. Is there any way to get 3G on my M8? fed up of 2G speed on high speed mobile
Please help!!!!
Solution posted here : http://forum.xda-developers.com/spr...-countries-t2847461/post54816046#post54816046

Any help from anyone?
Sent from my 831C using XDA Free mobile app

Unfortunately, I and others have not been able to connect to 3g even on sprints network. This is because of defective hardware. As much as I tried to get it working, the only fix that worked was a replacement.
Check out this thread: http://forum.xda-developers.com/showthread.php?p=54347060
Good luck, and I hope you can get a replacement without difficulty
---------- Post added at 10:37 AM ---------- Previous post was at 10:33 AM ----------
Also, If youre trying to get the 2100 MHZ band for HSPA, it looks like tmobile's version is the fastest at 42Mbps. I dont know anything else about compatibility, but this is from HTC's website:
3G - WCDMA:
EMEA: 850/900/1900/2100 MHz with HSPA+ up to 42 Mbps
Asia: 850/900/1900/2100 MHz with HSPA+ up to 42 Mbps
AT&T: 850/1900/2100 MHz with HSPA+ up to 21 Mbps
Sprint: 850/1900/2100 MHz with HSPA up to 14.4 Mbps
Verizon: 850/900/1900/2100 MHz with HSPA+ up to 14.4 Mbps
TMUS: 850/AWS/1900/2100 MHz with HSPA+ up to 42 Mbps
CDMA:
Sprint: 800/1900
Verizon: 800/1900
4G - LTE:
EMEA: 800/900/1800/2600 MHz
Asia: 700/900/1800/2100/2600 MHz
AT&T: 700/850/AWS/1800/1900/2600 MHz
Sprint: FDD 800/1900 MHz , TDD 2600 MHz
Verizon: 700/AWS/1800/2600 MHz
TMUS: 700/AWS MHz

Cashreedhar said:
I am having HTC One M8 HK edition, S-OFF from Sprint. I have unlocked the SIM few days back and GSM is working fine and I am accessing 2G mobile internet (EDGE) without any issue.
Now my problem is, I am not able to get 3G signal and even I tried in the manual network search mode with no luck. I bought this phone after checking its band support in gsmarena which shows Sprint M8 supports HSDPA 850 / 1900 / 2100. I know in US all UMTS networks have 1900 band and I am in India and here we have only UMTS 2100 band.
Now my questions are:
1. Though the phone supports UMTS 2100 band, I am not able to use it. Is it because Sprint firmware does not have allowed it because its not usable in US?
2. By flashing a different firmware (by changing Model ID) will I be able to access 3G?
3. Is there any way to get 3G on my M8? fed up of 2G speed on high speed mobile
Please help!!!!
Click to expand...
Click to collapse
hi,
l am from turkey. did you solve the problem ? l have same problem and cant use 3g.
only 2g. waiting your reply

boxterss said:
hi,
l am from turkey. did you solve the problem ? l have same problem and cant use 3g.
only 2g. waiting your reply
Click to expand...
Click to collapse
No, actually I will be moving to US very soon. Hence, I will go for Sprint after that. But trying T-Mobile/AT&T is good option. I will try over the weekend and let you know. I know there are few who flashed AT&T firmwares for them 3G is working. But they reported few issues with the ROM. If you want to flash T-Mobile you need to flash T-Mobile firmware. For that you need to change the Model ID and of course your device should be S-OFF. Let you know once I try.
But its sad to miss official H/K tweaks as my mobile is HK edition

alexjzim said:
Unfortunately, I and others have not been able to connect to 3g even on sprints network. This is because of defective hardware. As much as I tried to get it working, the only fix that worked was a replacement.
Check out this thread: http://forum.xda-developers.com/showthread.php?p=54347060
Good luck, and I hope you can get a replacement without difficulty
---------- Post added at 10:37 AM ---------- Previous post was at 10:33 AM ----------
Also, If youre trying to get the 2100 MHZ band for HSPA, it looks like tmobile's version is the fastest at 42Mbps. I dont know anything else about compatibility, but this is from HTC's website:
3G - WCDMA:
EMEA: 850/900/1900/2100 MHz with HSPA+ up to 42 Mbps
Asia: 850/900/1900/2100 MHz with HSPA+ up to 42 Mbps
AT&T: 850/1900/2100 MHz with HSPA+ up to 21 Mbps
Sprint: 850/1900/2100 MHz with HSPA up to 14.4 Mbps
Verizon: 850/900/1900/2100 MHz with HSPA+ up to 14.4 Mbps
TMUS: 850/AWS/1900/2100 MHz with HSPA+ up to 42 Mbps
CDMA:
Sprint: 800/1900
Verizon: 800/1900
4G - LTE:
EMEA: 800/900/1800/2600 MHz
Asia: 700/900/1800/2100/2600 MHz
AT&T: 700/850/AWS/1800/1900/2600 MHz
Sprint: FDD 800/1900 MHz , TDD 2600 MHz
Verizon: 700/AWS/1800/2600 MHz
TMUS: 700/AWS MHz
Click to expand...
Click to collapse
Thanks for the reply. I checked with other people who are using sprint phones in India and none of them support 3G and later came to know it is a band issue. I also checked with the HTC app which checks whether the phone is defective or not. Read somewhere if its defective HTC replaces with no cost. Here is the app if someone wants to check.
http://dl3.htc.com/us/sprint/network_performance_test_tool_v0.85.zip

Cashreedhar said:
No, actually I will be moving to US very soon. Hence, I will go for Sprint after that. But trying T-Mobile/AT&T is good option. I will try over the weekend and let you know. I know there are few who flashed AT&T firmwares for them 3G is working. But they reported few issues with the ROM. If you want to flash T-Mobile you need to flash T-Mobile firmware. For that you need to change the Model ID and of course your device should be S-OFF. Let you know once I try.
But its sad to miss official H/K tweaks as my mobile is HK edition
Click to expand...
Click to collapse
ok. thanks , if you hane any news pls share with me

did you get it to work?
boxterss said:
hi,
l am from turkey. did you solve the problem ? l have same problem and cant use 3g.
only 2g. waiting your reply
Click to expand...
Click to collapse
I cant even get 2G in Spain what settings do you have for 2G?

Cashreedhar said:
I am having HTC One M8 HK edition, S-OFF from Sprint. I have unlocked the SIM few days back and GSM is working fine and I am accessing 2G mobile internet (EDGE) without any issue.
Now my problem is, I am not able to get 3G signal and even I tried in the manual network search mode with no luck. I bought this phone after checking its band support in gsmarena which shows Sprint M8 supports HSDPA 850 / 1900 / 2100. I know in US all UMTS networks have 1900 band and I am in India and here we have only UMTS 2100 band.
Now my questions are:
1. Though the phone supports UMTS 2100 band, I am not able to use it. Is it because Sprint firmware does not have allowed it because its not usable in US?
2. By flashing a different firmware (by changing Model ID) will I be able to access 3G?
3. Is there any way to get 3G on my M8? fed up of 2G speed on high speed mobile
Please help!!!!
Click to expand...
Click to collapse
i live at indonesia.. after unlocking my m8 HK. there is no problem with 3G connection.. all confirmed working fine... what do you mean unusable 3G? because of GSM indicator signal bar? check your network from seting about network. mine showing UMTS connection

Finally unlocked the UMTS 2100 and getting speed of 10.5 MB/s with the help of QPST
Sent from my 831C using XDA Free mobile app

Cashreedhar said:
Finally unlocked the UMTS 2100 and getting speed of 10.5 MB/s with the help of QPST
Sent from my 831C using XDA Free mobile app
Click to expand...
Click to collapse
pls help for that problem.
how can l use 3g for sprint htc m8 outside us

boxterss said:
pls help for that problem.
how can l use 3g for sprint htc m8 outside us
Click to expand...
Click to collapse
Here you go http://forum.xda-developers.com/spr...-countries-t2847461/post54816046#post54816046