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Unlocked Global Version work on ATT?

If i import an unlocked global version will i be able to use 3g on ATT? The reason i ask is that this is the sexiest phone ive seen in a long time.
From something awesome

killersnowman said:
If i import an unlocked global version will i be able to use 3g on ATT? The reason i ask is that this is the sexiest phone ive seen in a long time.
From something awesome
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Based on GSMArena the 3G bands are HSDPA 850/900/2100, so it will work in 850 with AT&T, but there are areas where you'll need 1900 to get 3G and you would only get Edge.
I'm not sure if GSMArena info is accurate but I understand that there should be a HTC One S for T-Mobile and that would require 1700/2100 so there's another coming with different bands or GSMArena is wrong...

There were posts on a number of blogs such as engadget that the t-mobile variant had AWS bands plus 850/1900 for AT&T. That would be great if it did. Wondering if the band specification was determined before the merger fell apart.

[Q] Add or unlock LTE bands

I bought the american version of the Nexus 5 even though I am on the middle east (for price reasons). Since the snapdragon 800 chip support all LTE bands techniclly speaking, could I activate certain ones to work for me through firmware or modem modification?

Not at the moment,
There are people who believe that it will never be possible due to RF hardware differences between EU and US models.
There are people who believe that a modem firmware hack might unlock some LTE bands in the future.

Well I was hoping for a onesided, positive reply, but I guess you are right, we will wait and see.
What was the case on other Snapdragon 800 phones, were they able to activate it?

I'm only aware of few cases where some RF Bands could be activated/deactivated via an engineering menu.
I have never heard of a case when someone successfully hacked modem firmware and added new RF Bands.

Does anybody succeed trying this: http://forum.xda-developers.com/cro...ad-progress-please-leave-im-updating-t2871269 ?
Should work for any Qualcomm based device like Nexus 5.
Thanks for any feedback.

michelD said:
Does anybody succeed trying this: http://forum.xda-developers.com/cro...ad-progress-please-leave-im-updating-t2871269 ?
Should work for any Qualcomm based device like Nexus 5.
Thanks for any feedback.
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No the program is banned. Besides we already have most the LTE bands on 2 versions. If they could fit them all on they would have done. Maximum 7 LTE bands
Sent from my Nexus 5 using Tapatalk

What do you mean by "the program is banned"??
Yes indeed there are 2 versions, but I purched my nexus 5 when I was in US and I am now in Europe!
So you can easily understand my interest for this topic...

michelD said:
What do you mean by "the program is banned"??
Yes indeed there are 2 versions, but I purched my nexus 5 when I was in US and I am now in Europe!
So you can easily understand my interest for this topic...
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1) never said there wasn't reason for your interest
2) it isn't possible to add European bands to US version. If it was, there would be no need for US version. Limitation on nexus 5 is physical. Maximum 7 bands.
3) the link you provided is for a program that is banned on XDA. You van tell that by reading the thread
Sent from my Nexus 5 using Tapatalk

Add 3G and LTE bands to your phone
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fffft said:
Interesting. Can you elaborate on why there might be a "physical" limitation of 7 bands on the Nexus 5? That would be an unusual finding in a recent handset. It's certainly not the case with most current phones e.g. I've enabled dozens of additional bands on my Samsung S5 and others have done the same on various HTC, Sony, LG, etc phones.
If you have any details or a source, that would be appreciated.
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Its a limitation of the WTR1605L ref receiver. 7 bands. Actually this was the first (making the msm8974 the first) to be able to do 7. 5 was the previous Max, hence why there used to be a million versions of Samsung galaxy devices
http://www.anandtech.com/show/6541/the-state-of-qualcomms-modems-wtr1605-and-mdm9x25/2
Sent from my Nexus 5 using Tapatalk

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fffft said:
Thank you for the informative reply. You are right of course and I see now where the confusion is arising as well. As you said, the previous max was five bands as in a pentaband phone. And the WTR1605L now supports 7 bands as in a heptband phone. Three bands below 1 Ghz, three bands above and one band at 2.5 Ghz. Bands meaning spectrum frequency segments e.g. 700/800/900/1700/1800/2100/2600 Mhz.
The confusion and this is ironic as well is that 3GPP, the organization who defines the GSM standard also uses the term band to refer to something confusingly different i.e. intra-band segments. And that usage while seemingly ill advised has become ubiquitous. So a band without a context can refer to the contigous 800 Mhz segement. Or half a dozen subsets of it, each of those subsets also being an officially designated 3GPP "band" as well.
When you look at the specs for a given phone, the term bands is often used in the latter sense. For example, the S5 uses the same WTR1605L chip and is obstensibly a 7 band phone as well. And it is indeed limited to 7 "major" bands for lack of a better description. But the specs appear to show the S5 as supporting 16 "bands" i.e. eight LTE "bands", four 3G "bands" and four 2G "bands". And our NV edits can enable dozens more "bands" in the way that carriers refer to them.
Anyway, suffice it to say that rootSU is absolutely correct that the hardware is limited to seven "bands". And at the same time, we can still add dozens of discrete "bands" in the sense that the carriers use the term. Yeah it is confusing.
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Yes you can see on the box of the D820, what would appear to be 9 bands, but they all fall within the 7
However, since we have no solid documentation, we cannot still add dozens or even 1 carrier used-term. Its closed source.
Edit > but there is no real benefit to having a d820 and a d821 if they could get everything on the same die.
Sent from my Nexus 5 using Tapatalk

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[Q] Huawei Ascend Mate 7 LTE Bands

Can someone tell me which bands the phone supports. There has been conflicting information and I want to know if there are different models to look out for.
According to Huawei the phone will support FDD LTE band 1/2/3/4/5/7/8/20/28. However the China websites that are currently selling the phones only list band 1, 3 and 7. Is this a mistake or is this different model?

You ask Huawei?
ahmadcentral said:
Can someone tell me which bands the phone supports. There has been conflicting information and I want to know if there are different models to look out for.
According to Huawei the phone will support FDD LTE band 1/2/3/4/5/7/8/20/28. However the China websites that are currently selling the phones only list band 1, 3 and 7. Is this a mistake or is this different model?
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THIS is why I'm waiting until someone figures this out. There's been a lot of discussion around this. Has anyone tried emailing Huawei and asking them?

sanjsrik said:
THIS is why I'm waiting until someone figures this out. There's been a lot of discussion around this. Has anyone tried emailing Huawei and asking them?
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band 1/3/7 is the only bands available in China, but when the phone is roaming(using on other carrier than CMCC, China Unicom or China Telecomm), all other bands are usable.

Not sure what you mean
freefrank said:
band 1/3/7 is the only bands available in China, but when the phone is roaming(using on other carrier than CMCC, China Unicom or China Telecomm), all other bands are usable.
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Thanks, but what does that mean? You don't specify whether this will work on (as the question asked) on the AT&T US or the T-Mobile US networks for 4G and LTE capability.
If you can provide that information and backup as to where that can be found that this device is compatible and will work at 4G LTE speeds on the T-Mobile or AT&T US networks, I'd be a lot more sure about what i was getting.
Thank you though for responding.

lte bands
Here is a link I found at the Huawei Mobile Shop
http://www.huaweimobileshop.com/blog/4g-lte-frequencies/

Current version of phones NOT compatible with US 4G LTE networks, from Huawei
2007jchill said:
Here is a link I found at the Huawei Mobile Shop
http://www.huaweimobileshop.com/blog/4g-lte-frequencies/
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I made a post on the main level of this thread, please go look.
Huawei's current offering of phones is NOT compatible with US 4G LTE bands, they will be releasing one soon (don't know when) that WILL be compatible.
I asked them directly and they responded from the manufacturer directly.
My suggestion, wait until they put out a US-compatible phone.
i don't know WHY none of the press bothered to point this out, useless in total if you ask me. They screamed and oohed and aahed over the device and failed to mention that the one being shown AND being produced currently is NOT compatible with the US-market. Another model that Huawei says is, will be released (no ETA).

LTE Band Questions

Hello XDA Community,
I have several questions concerning LTE bands (well, cellular data bands in general). This terminology may not be completely accurate, but I think I should get the gist across. I'll number them for ease of response.
1. It is my current understanding that the hardware that determines which LTE bands a phone can use are built into the SOC. Is this correct?
2. Is there a way I can look up which bands the hardware on my phone supports? Ie. can I look up what bands a "qualcomm snapdragon 660" supports? I tried googling it of course, but no luck.
3. Would I look this up via an app?
4. It is also my understanding that many phones have some bands disabled. Doing some googling show that you can unlock these hidden bands in some cases? Is that correct?
There may be more specified questions to follow, provided what the answers to these questions are.

Iam interested in the same questions.
Sometimes after enabling LTE bands the phone still don't use them.
If someone know technically in details how it works please share your knowledge !
Thanks

Was googling and found this post.
I have exactly the same questions. Some expert could please enlighten us? It would be much appreciated.
Thanks

LTE band change for J327u Exynos

Hello everyone. As many of us first posters here, I have a problem:
I've bought an north american J327U from someone I know, and that person only used it at home with their wi-fi. It's got an Exynos chipset, and no support for the LTE bands from where I live in (which are completely different from the USA's LTE bands).
After quite a bit of research, I found here and elsewhere methods to change LTE support for Qualcomm devices, but had no luck finding any for Exynos devices. Is there any way to do the same thing for devices with Exynos chipset, or am I stuck with no LTE? I also know it deppends on the hardware support for that, in my case I would need support for bands 3 (1800mhz), 7 (2600mhz) and 28 (700mhz). The phone covers none of those.
My device is not yet rooted, but I'm fine with doing so if needed.
Thanks in advance for any help.

I don't think you can physically change the bands unfortunately.