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Why Did Sony Stop Including VoLTE & HD Voice In Their Xperia Line??!

Previous models like the Z2 and Z3 Xperia phones had both VoLTE & HD Voice included, even in the international versions. But since the Z5 and even with the upcoming X series phones, these features were removed. Does ANYONE know why Sony did this?? I have a couple ideas, but I'd like to know if anyone knows anything more concrete. Any information would be great!!
Thanks!

Well, some country (mostly Asia/Europe) has VoLTE option on Z5.
On my Japanese docomo's X Performance also has VoLTE option, so maybe some country/customization will have VoLTE option.

AndroPlus said:
Well, some country (mostly Asia/Europe) has VoLTE option on Z5.
On my Japanese docomo's X Performance also has VoLTE option, so maybe some country/customization will have VoLTE option.
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Andro,
Very interesting! Let me ask you.....I've pre-ordered the INTERNATIONAL version of the X Performance. Is that the version that you have too? Or did you get your X Performance from a Japanese carrier?? Please let me know. Thanks!

RockStar2005 said:
Andro,
Very interesting! Let me ask you.....I've pre-ordered the INTERNATIONAL version of the X Performance. Is that the version that you have too? Or did you get your X Performance from a Japanese carrier?? Please let me know. Thanks!
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I was selected to test Japanese carrier's X Performance before launching in Japan
I will get international Dual (F8132), though.

AndroPlus said:
I was selected to test Japanese carrier's X Performance before launching in Japan
I will get international Dual (F8132), though.
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Click to collapse
Oh. So it's from a Japanese carrier......I was hoping you were gonna tell me it was the international version. Oh well. lol

VoLte also use by an application, in india only Jio Innfocom is ony VoLte provider and for non VoLte Phones they are using JioConnect App For Hd Calling So Don't Worry About VoLTe.

Pramodkumawat said:
VoLte also use by an application, in india only Jio Innfocom is ony VoLte provider and for non VoLte Phones they are using JioConnect App For Hd Calling So Don't Worry About VoLTe.
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Well here in America I found out from T-Mobile's Tech Support Department that I'll still be able to make calls in a 4G LTE-only area even without VoLTE, which is fine. But the problem is Band 12/700 MHz. This is very valuable low-bandwidth spectrum which T-Mobile JUST purchased in my area (Chicago) a week ago. So within the next 6-8 mos this will become available for all customers like myself. Band 12 is very good at penetrating through buildings, unlike the higher spectrums, so that's why people would want it. But I found out that if I buy the X Performance, b/c it doesn't have VoLTE on it, I can ONLY use Band 12 for data while on a call, not for the call itself. Which means I WON'T be able to take advantage of having Band 12, even though the XP has it. They said your phone can only use Band 12 for phone calls if you have VoLTE. The other bandwidths don't require VoLTE but Band 12 does. So I'm NOT happy about this.
I could get an HTC 10 through T-Mobile today, and it would have VoLTE, but the camera on the 10 isn't as good as the XP's, and the XP looks cooler too, plus has front-facing STEREO speakers. So I dunno. I'm really p'd off Pramo because I feel like I have to sacrifice something I really like just to have the XP.

RockStar2005 said:
Previous models like the Z2 and Z3 Xperia phones had both VoLTE & HD Voice included, even in the international versions. But since the Z5 and even with the upcoming X series phones, these features were removed. Does ANYONE know why Sony did this?? I have a couple ideas, but I'd like to know if anyone knows anything more concrete. Any information would be great!!
Thanks!
Click to expand...
Click to collapse
Can't verify it myself as I don't have a Z5 series phone, but according to a list on Wikipedia the Z5 series does have HD Voice: https://en.wikipedia.org/wiki/List_of_smartphones_with_HD_Voice_support#Sony
So, what makes you believe the Z5 or the new X series would not support HD Voice?
Also, the Z5 series reportedly supports VoLTE, depending on carrier of course:
http://www.areamobile.de/news/32061-voice-over-lte-diese-smartphones-unterstuetzen-lte-telefonate

sxtester said:
Can't verify it myself as I don't have a Z5 series phone, but according to a list on Wikipedia the Z5 series does have HD Voice: https://en.wikipedia.org/wiki/List_of_smartphones_with_HD_Voice_support#Sony
So, what makes you believe the Z5 or the new X series would not support HD Voice?
Also, the Z5 series reportedly supports VoLTE, depending on carrier of course:
http://www.areamobile.de/news/32061-voice-over-lte-diese-smartphones-unterstuetzen-lte-telefonate
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Click to collapse
sxtester,
Thank you SO MUCH for sharing these links. It seems that perhaps Sony DID put VoLTE on these phones. But I am in the process of reaching someone at Sony internally (via T-Mobile's "contact" person who works at Sony Mobile) to verify all this. But this is very promising news, and MUCH appreciated!! The MAIN thing is to find out whether or not the Xperia X Performance will have VoLTE or not, and if they have already certified VoLTE with T-Mobile or not? See this link in order to follow up over the next week or two.
Thanks!!

Sony has included VoLTE on the XP, I think the intl, version is the same as the Hong Kong Version, I have personal seen this feature on the retail version of the XP, just a few more days before I get mine.

The ones that had it were carrier specific Z5s there is no universal volte unless sony certified with the carriers for the model
Sent from my D6708 using Tapatalk

kms108 said:
Sony has included VoLTE on the XP, I think the intl, version is the same as the Hong Kong Version, I have personal seen this feature on the retail version of the XP, just a few more days before I get mine.
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hey kms,
That's the thing........ we're not 100% sure the HK version is the same as the int'l version. It might be, but I'd rather know for sure. I will find out soon enough (see last few posts) whether or not the XP will have VoLTE on it or not, etc.
A few days? Nice!! Lucky! lol I probably still got another month before I get it. lol

AndroPlus said:
I was selected to test Japanese carrier's X Performance before launching in Japan
I will get international Dual (F8132), though.
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Click to collapse
Hello,
I know this is out of topic. But could you please let me know if the X Performance uses in-cell touch display? This can be done by checking the screen if it has "patterns" on the screen like the Z3.

nehway0912 said:
Hello,
I know this is out of topic. But could you please let me know if the X Performance uses in-cell touch display? This can be done by checking the screen if it has "patterns" on the screen like the Z3.
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Click to collapse
Yes, X Performance uses in-cell touch display.
I can't see patterns and Sony's developer explained they used in-cell to make unified design.
I can also confirm it uses in-cell because there is touch driver for in-cell in kernel source.

HD voice uses 3g signals (H, H+, 3g)
VoLTE uses (obviously) true 4g signals (4g, LTE)
It is up to networks to provide access to the services as they are done on a network level, not handset level
Sent from my F5121 using Tapatalk

corallus said:
HD voice uses 3g signals (H, H+, 3g)
VoLTE uses (obviously) true 4g signals (4g, LTE)
It is up to networks to provide access to the services as they are done on a network level, not handset level
Sent from my F5121 using Tapatalk
Click to expand...
Click to collapse
Hey corallus,
How u been?
So is there a way to make my int'l XP I just bought get 4G on a call instead of what it HAS been doing which is switching back and forth from 3G and H+/3.5G?

Not bad dude,
It's one of those things where you gonna have to speak to T-mobile.
It MAY depend on the phone having their firmware on, it normally does.. But, guessing not released on their network yet..
Give them a call and see what plans they have for providing the service on their network.
Sent from my F5121 using Tapatalk

corallus said:
Not bad dude,
It's one of those things where you gonna have to speak to T-mobile.
It MAY depend on the phone having their firmware on, it normally does.. But, guessing not released on their network yet..
Give them a call and see what plans they have for providing the service on their network.
Sent from my F5121 using Tapatalk
Click to expand...
Click to collapse
corallus,
Yeah I was gonna give them a call prob tomorrow about it. My Contacts app is being weird too, and Wi-Fi is acting a lil funny too on my phone. So I decided to just use Xperia Companion to wipe the phone clean and reinstall the software. I'm HOPING that does the trick. I guess I'll find out shortly.
I know they'll prob say they can't do anything about it, but can't hurt to call them. Since I bought the phone unlocked (like I had a choice Sony?! lol) that's not gonna help much, plus it's the int'l version of the XP too. So I dunno. We'll see what they say.

AndroPlus said:
I was selected to test Japanese carrier's X Performance before launching in Japan
I will get international Dual (F8132), though.
Click to expand...
Click to collapse
Hi, I have got a X performance today, do you want to make a custome kernel for XP?

I can comfirm that VoLTE is on my unit.
without a VoLTE Usim, the icon does not show, but once a supported Usim is inserted, the VoLTE will show up, and operative.

US X Performance & VoLTE on T-Mobile (or AT&T)???

PLEASE only respond if you live in the US and use T-Mobile (preferred) or AT&T AND have purchased the US version of the XP.................
Not sure if the US Xperia X Performance has been made available yet, but if so, can anyone tell me if it can get VoLTE on either T-Mobile or AT&T? Just wonder if radio/signal-wise it's any different than the int'l XP I have now.
Thanks!

what is the model of the intl version? we can lookup the whitepaper on them and compare the radios

acme64 said:
what is the model of the intl version? we can lookup the whitepaper on them and compare the radios
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Same model #s: F8132 for dual SIM (mine), F8131 for single-SIM.

they're the exact same radio according to Sony. so hardware wise if intl can do it so can us version. but do the carriers allow it is a whole other issue.

acme64 said:
they're the exact same radio according to Sony. so hardware wise if intl can do it so can us version. but do the carriers allow it is a whole other issue.
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Ok thanks for checking acme! Well the XP has all the same bands as T-Mobile, so they should! Though I found out that XPs used in other countries like Hong Kong DO get VoLTE (I've seen screenshots too), but in the US, both AT&T and T-Mobile SIM cards don't enable that. Weird! I'd still like someone WITH a US XP to confirm that they do or don't have VoLTE though on AT&T and/or T-Mobile.
Yeah like today I was in downtown Chicago with family, and like my parents have the Sony Xperia Z1s (locked phone from T-Mobile). We were down by Navy Pier (by Lake Michigan), and my dad's Z1s (released Jan 2014) was getting better reception than my brand new int'l XP (unlocked not through T-Mobile but from Sony b/c Sony are idiots who don't release phones through carriers anymore and I hate them for it lol).
Now, I thought this was maybe b/c their phones were from T-Mobile so they'd been "configured" to their network, but then my sister's b/f was saying that some of the older model phones have better radio reception than the newer ones b/c the newer ones have more crap CRAMMED into them, which can impede radio reception, despite the XP having a polycarbonate (aka plastic lol) frame which is supposed give you better reception than metal would.
You think that's it? Or do you think it has something to do with the XP not being "configured" by T-Mobile??
Thanks.

RockStar2005 said:
Ok thanks for checking acme! Well the XP has all the same bands as T-Mobile, so they should! Though I found out that XPs used in other countries like Hong Kong DO get VoLTE (I've seen screenshots too), but in the US, both AT&T and T-Mobile SIM cards don't enable that. Weird! I'd still like someone WITH a US XP to confirm that they do or don't have VoLTE though on AT&T and/or T-Mobile.
Yeah like today I was in downtown Chicago with family, and like my parents have the Sony Xperia Z1s (locked phone from T-Mobile). We were down by Navy Pier (by Lake Michigan), and my dad's Z1s (released Jan 2014) was getting better reception than my brand new int'l XP (unlocked not through T-Mobile but from Sony b/c Sony are idiots who don't release phones through carriers anymore and I hate them for it lol).
Now, I thought this was maybe b/c their phones were from T-Mobile so they'd been "configured" to their network, but then my sister's b/f was saying that some of the older model phones have better radio reception than the newer ones b/c the newer ones have more crap CRAMMED into them, which can impede radio reception, despite the XP having a polycarbonate (aka plastic lol) frame which is supposed give you better reception than metal would.
You think that's it? Or do you think it has something to do with the XP not being "configured" by T-Mobile??
Thanks.
Click to expand...
Click to collapse
i'd bet money it has something to do with a configuration. If Sony already designed a phone where all the radios work why would they break it in later iterations, doesn't make sense. it's also illegal to say the phone can do this and that when it actually can't.

acme64 said:
i'd bet money it has something to do with a configuration. If Sony already designed a phone where all the radios work why would they break it in later iterations, doesn't make sense. it's also illegal to say the phone can do this and that when it actually can't.
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Click to collapse
Ok then how do I reconfigure it? lol If it was that the radio was just better/stronger on the Z1s that's one thing, but if it was that my XP somehow wasn't configured "well enough" to T-Mobile's network, despite having all the same bands, then how do I fix that? lol
It could be that the phones are designed a certain way but then the carriers (when they get them to sell) do some extra configuring or tweaking too?
I remember being again in another part of downtown 2 years ago and 2 friends of mine who both had Sprint and the same phone (Galaxy S3) had differing reception. One had all 5 bars lit up, while the other who was only sitting 5 feet away, had like no reception. WTF? lol That's what happened yest except 2 different phones though both are Sony, oh and mine of course is unlocked int'l version.

RockStar2005 said:
Ok then how do I reconfigure it? lol If it was that the radio was just better/stronger on the Z1s that's one thing, but if it was that my XP somehow wasn't configured "well enough" to T-Mobile's network, despite having all the same bands, then how do I fix that? lol
It could be that the phones are designed a certain way but then the carriers (when they get them to sell) do some extra configuring or tweaking too?
I remember being again in another part of downtown 2 years ago and 2 friends of mine who both had Sprint and the same phone (Galaxy S3) had differing reception. One had all 5 bars lit up, while the other who was only sitting 5 feet away, had like no reception. WTF? lol That's what happened yest except 2 different phones though both are Sony, oh and mine of course is unlocked int'l version.
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you probably can't do anything. it'd be on the carrier end.

acme64 said:
you probably can't do anything. it'd be on the carrier end.
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Click to collapse
F'ers!! lol
Thanks anyway acme.

RockStar2005 said:
F'ers!! lol
Thanks anyway acme.
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Click to collapse
Just clarify, volte is locked only to tmobile phones unless the company goes get the phone certified (zte axon 7 went this route and HTC 10)

SovPanda said:
Just clarify, volte is locked only to tmobile phones unless the company goes get the phone certified (zte axon 7 went this route and HTC 10)
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Sov,
Yeah I know. All I REALLY care about is that I can get Band 12 for data from T-Mobile on my int'l Sony Xperia X Performance phone. I think I can, b/c that has NOTHING to do with VoLTE, which only is used DURING phone calls. I don't care about having Band 12 during phone calls, but I DO care about having it when not on a call.

RockStar2005 said:
Sov,
Yeah I know. All I REALLY care about is that I can get Band 12 for data from T-Mobile on my int'l Sony Xperia X Performance phone. I think I can, b/c that has NOTHING to do with VoLTE, which only is used DURING phone calls. I don't care about having Band 12 during phone calls, but I DO care about having it when not on a call.
Click to expand...
Click to collapse
Band 12 works but you gotta find it like a unicorn

SovPanda said:
Band 12 works but you gotta find it like a unicorn
Click to expand...
Click to collapse
Haha..........so you have the int'l Sony Xperia X Perf on T-Mobile AND live in the U.S.??? Or know someone that does?
Well I live in Chicago which right now doesn't have Band 12 from T-Mobile. HOWEVER, a few mos ago T-Mobile bought a ton of Band 12 from an AT&T subsidiary, and so now it's only a matter of time before my entire area gets it (pending FCC approval). They say it could be as early as later this year or latest is prob next June. I'll know when it's available b/c T-Mobile will announce but I can also check their spectrum map too. When the area covered by the green circle around Chicago becomes "magenta" and has a bunch of circled 12s put into it, then that'll mean it's live. Can't wait!!

RockStar2005 said:
Haha..........so you have the int'l Sony Xperia X Perf on T-Mobile AND live in the U.S.??? Or know someone that does?
Well I live in Chicago which right now doesn't have Band 12 from T-Mobile. HOWEVER, a few mos ago T-Mobile bought a ton of Band 12 from an AT&T subsidiary, and so now it's only a matter of time before my entire area gets it (pending FCC approval). They say it could be as early as later this year or latest is prob next June. I'll know when it's available b/c T-Mobile will announce but I can also check their spectrum map too. When the area covered by the green circle around Chicago becomes "magenta" and has a bunch of circled 12s put into it, then that'll mean it's live. Can't wait!!
Click to expand...
Click to collapse
Xperia z5 international in Chicago as well :0 but the areas that does have band 12 does support the Xperia phones

SovPanda said:
Xperia z5 international in Chicago as well :0 but the areas that does have band 12 does support the Xperia phones
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Click to collapse
Oh wow! That's great!!!!!!!!!!!!!!! Do you have T-Mobile too though????!
I just wanna be able to get reception (data) in certain areas in downtown like at the Ogilvie Metra Station basement, Untitled club on Kinzie, etc. I'm hoping that Band 12/700 MHz will make that happen. But also for when I'm indoors in certain places in the suburbs.
Thanks for sharing this great info!! I figured it would but wasn't sure. I think the ppl who said no were thinking of VoLTE, or aka having 4G LTE data and/or voice DURING calls.

SovPanda said:
Xperia z5 international in Chicago as well :0 but the areas that does have band 12 does support the Xperia phones
Click to expand...
Click to collapse
So do you have T-Mobile too?

RockStar2005 said:
So do you have T-Mobile too?
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Click to collapse
Yes sir, going to complain though to Sony, if a brand like zte can get certified to use t-mobile's volte than they should be able to >:/

SovPanda said:
Yes sir, going to complain though to Sony, if a brand like zte can get certified to use t-mobile's volte than they should be able to >:/
Click to expand...
Click to collapse
Awesome! Good to know!!
Haha...........I already tried doing that. I even had someone at T-Mobile's "Network team" contact their "contact" over at Sony Mobile about that issue. Last I heard, they never heard back from the Sony guy. lol But go ahead.........can't hurt!
I couldn't agree more. It's ****ing BS. It's the least they could do after not giving the US Z5 and X Perf a working fingerprint sensor. lol

Do NOT buy in the US - does NOT work with modern T-Mobile or AT&T networks

Do NOT buy this phone in the US unless Sony gets its phones approved to work with T-Mobile & AT&T
Sadly Sony is the only phone maker that offers a NORMAL sized phone with the Compact series.
Please show me ANY other options for an Android phone with a 4.6"-4.8" screen with a good camera. THERE ARE NONE! The battery life is also beyond incredible. I easily get 1+ (up to 2) days battery life with heavy usage. Standby time (screen off) is easily 7 days (no greenify or any of that crap needed).
I have a Sony Xperia X Compact and it is the BEST ANDROID PHONE I have ever had.
Despite that I have to say that NOBODY SHOULD BUY ANY SONY PHONES.
The phone is awesome and supports pretty much any 3G and 4G band out there but Sony refuses to get these phones approved by AT&T and T-Mobile for VoLTE.
That means (for T-Mobile as an example) that the Xperia X Compact technically supports T-Mobile's super-duper Band 12 LTE which has almost better coverage than Verizon, BUT because the phone is not approved for VoLTE, Sony phones will almost immediately get disconnected from that T-Mobile tower. You may be standing next to someone with an approved phone that has 100% coverage, yet the Sony Xperia phones will show NO RECEPTION.
Sony phones should be able to at least connect to Band 12 for data but they don't. It may technically have the ability to connect to Band 12 and even use VoLTE, but the tower refusal to keep the connection. Sony then apparently also screwed up the band prioritization, because Sony phones even have issues connecting to non VoLTE networks (eg Band 4).
As a result, ALL SONY PHONES ARE PRETTY MUCH UNUSABLE on T-Mobile and AT&T AS A PHONE.
Do NOT buy any Sony phones if you want to use them on T-Mobile and AT&T, though I can tell you that they are the BEST phones otherwise - just not as a phone.
This is pathetic and there is no response from Sony.

But the press releases say these 2 phones will work with t-mobile VOLTE and WiFi Calling.

lobo4806 said:
But the press releases say these 2 phones will work with t-mobile VOLTE and WiFi Calling.
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Click to collapse
Yea it will.
https://www.androidheadlines.com/20...z1-compact-support-t-mobile-wifi-calling.html

Lol yes first compact phone they certified I think. If someone figures out how to retain the volte functions and gain fingerprint sensor, I'm in.

I've had several Sony phones (Z1C, Z3, Z5C, all international single-SIM versions) and since at least the Z3, they all supported LTE on AT&T. I'm not sure anything changed since the Z5 era, so I'm hoping the XZ1C works fine on AT&T.

Can someone confirm this phone will work on at&t in the us? God I want it to do bad.

texaslegend said:
Can someone confirm this phone will work on at&t in the us? God I want it to do bad.
Click to expand...
Click to collapse
Unproven rumors that it will be voLTE certified. NO CONFIRMATION FROM SONY OR T-MOBILE.
Even so, you won't be able to use the fingerprint sensor, since the international ROM won't support it.
Do NOT buy!!!!

Cool story but I'll be buying. Can't wait!
Btw, it also not confirmed that it WON'T work. Don't you think it would be a good idea to wait and see.
Sent from my HTC U11 using Tapatalk

It seems you have some sort of personal agenda against Sony and/or this particular phone. An idealistic preference for what network(s) should be supported.
I don't know that I care if VoLTE is possible. I want to know if I can make/receive calls, text, access data for app and internet use.
The fingerprint scanner is irrelevant for me, it's there or not.
So simply said, will this work on US networks although some features may not be compatible.
Sent from my SM-G930V using XDA Free mobile app

Should be fine like every other Sony Compact I've had. Best Buy and Amazon will be selling it here shortly so one would logically assume they would be US carrier compatible in terms of calling/ data. I could give a crap about VoLTE.

From what I understand T-Mobile was sued a few years ago when someone couldn't make a 911 call in an area where there was only Band 12 LTE (since Band 12 goes through walls better than the 1900 MHz 2G and 1700 MHz 3G that T-Mo uses, apparently legally you are better off with no cell service than with only data service), because of that lawsuit T-Mobile asked phone makers to disable Band 12 on US devices that do not have VoLTE. (I can't post a source because I'm a new member but you can google this). It looks like the Band 12 blocking is done at the phone firmware level, not from T-Mobiles end, so there is a decent chance that the European firmware will not have Band 12 disabled. Though it will most likely also not support VoLTE on T-Mobile. You should still get good LTE data, you just might have to drop back to 3G or 2G for calls.
That said, this would need to be tested. It would be a shame if you had to choose between band 12 coverage without the fingerprint sensor, or a fingerprint sensor with band 12 coverage.
Either way I'm pretty psyched for this phone. I wish there was more competition in this space, but since Sony is the only game in town when it comes to non-phablet smartphones we really don't have much of a choice do we?

Phones re in and ... I am sadly correct.
Maybe if people spent more time to complain to T-Mobile, Sony, the FCC, the FTC and their Senator/congressman we would not have this issue.
Cell phone networks were supposed to let unlocked phones on ... VoLTE violates that.

Currently using my phone on tmobile just fine.
Getting LTE for data and no voice disconnects.
Could care less about volte; most people don't use their phones to talk anymore, myself included. Normal voice works fine for my needs. ¯\_(ツ)_/¯

christogold said:
That said, this would need to be tested. It would be a shame if you had to choose between band 12 coverage without the fingerprint sensor, or a fingerprint sensor with band 12 coverage.
Click to expand...
Click to collapse
Sadly, some of us do.
theplasmastorm said:
Currently using my phone on tmobile just fine.
Getting LTE for data and no voice disconnects.
Could care less about volte; most people don't use their phones to talk anymore, myself included. Normal voice works fine for my needs. ¯\_(ツ)_/¯
Click to expand...
Click to collapse
Dont assume too much. Since band 12 is much better than bands 2 and 4 in many ways, t-mobile is often not only adding band 12 but using it to replace bands 2 and 4 (kinda makes sense, why would you upkeep obsolete bands). I have had T-Mobile for about a year with an older unlocked phone and they recently switched to a lot of band 12 all over my area/region and now I have lots of total deadzones (including my house). I need to be able to make/receive phone calls, as I'm sure many do. But, for your point, I do still have data, sometimes, it seems to be much weaker a lot of the time compared to what it used to though, but maybe that's just me. I recall coming across a list of cities/places where t-mobile plans to switch things to band 12 and the timeline.
Edit: I am not sure this was the exact article I originally viewed, but here's a link < http://www.prepaidphonenews.com/2017/07/tmo-lte-spectrum-update.html?m=1 >.

theplasmastorm said:
Currently using my phone on tmobile just fine.
Getting LTE for data and no voice disconnects.
Could care less about volte; most people don't use their phones to talk anymore, myself included. Normal voice works fine for my needs. ¯\_(ツ)_/¯
Click to expand...
Click to collapse
So to clarify, if it doesn’t have VoLTE, it just drops to LTE?
So if I flash UK firmware to get the fingerprint scanner (with AT&T) I just get LTE?
I don’t see why this is such a huge issue then, at least for me where I live I’ve never seen anyone with anything more than LTE anyway, it’ll be just business as usual. I also don’t make many phone calls so this doesn’t seem like anything that will hurt me with this phone one bit.

kobold98 said:
So to clarify, if it doesn’t have VoLTE, it just drops to LTE?
So if I flash UK firmware to get the fingerprint scanner (with AT&T) I just get LTE?
I don’t see why this is such a huge issue then, at least for me where I live I’ve never seen anyone with anything more than LTE anyway, it’ll be just business as usual. I also don’t make many phone calls so this doesn’t seem like anything that will hurt me with this phone one bit.
Click to expand...
Click to collapse
To clarify,
On AT&T, with US firmware, you can:
1] You get LTE data.
2] You can make calls over GSM or UMTS, but not over LTE. This will also drop your data rate to 3G if you are using voice and data simultaneously.
3] You get no fingerprint reader.
On AT&T, with European firmware, you can:
1] You get LTE data.
2] You can make calls over GSM or UMTS, but not over LTE. This will also drop your data rate to 3G if you are using voice and data simultaneously.
3] You get a working fingerprint reader.
The VoLTE certification and modem configurations are only for T-Mobile on US firmware and other operators on specific, non-US firmware variants.

pbarrette said:
To clarify,
On AT&T, with US firmware, you can:
1] You get LTE data.
2] You can make calls over GSM or UMTS, but not over LTE. This will also drop your data rate to 3G if you are using voice and data simultaneously.
3] You get no fingerprint reader.
On AT&T, with European firmware, you can:
1] You get LTE data.
2] You can make calls over GSM or UMTS, but not over LTE. This will also drop your data rate to 3G if you are using voice and data simultaneously.
3] You get a working fingerprint reader.
The VoLTE certification and modem configurations are only for T-Mobile on US firmware and other operators on specific, non-US firmware variants.
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Thank you so much, it’s been hard to find a totally clear picture of this. As someone who doesn’t make a lot of phone calls (but does rely on LTE data) and never uses data during phone calls it sounds like I’ll be good to go with European firmware.

Thank you, that is a good summary for a fellow AT&T user. But one thing I am curious about. Does AT&T have VoLTE at all? Or is tmo the only one with that ability? Basically, if I bought a totally different phone specifically for AT&T would I get VoLTE?

Frontier3 said:
Thank you, that is a good summary for a fellow AT&T user. But one thing I am curious about. Does AT&T have VoLTE at all? Or is tmo the only one with that ability? Basically, if I bought a totally different phone specifically for AT&T would I get VoLTE?
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AT&T only offers VoLTE (they brand it: HD Voice) via their own branded handsets (ones bought through them) or any iPhone 6 or newer (as i recall).

andTab said:
Phones re in and ... I am sadly correct.
Maybe if people spent more time to complain to T-Mobile, Sony, the FCC, the FTC and their Senator/congressman we would not have this issue.
Cell phone networks were supposed to let unlocked phones on ... VoLTE violates that.
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Have you?

Anyone have 2x Carrier Aggregation working on LTE? (Qualcomm)

I'm not sure if there any non-Qualcomm variants of this phone so if there isn't please let me know. I'm curious if anyone has carrier aggregation working on their devices? I have the unlocked US XT1806 variant and noticed I wasn't seeing the speeds on LTE I was supposed to be seeing. I checked the FCC certification documents and verified my FCC ID matched the one listed and I see it was tested and certified with many different 2xCA combos on the LTE side. Confusion indeed! Once I unlocked and rooted the device I was able to load up the awesome Network Signal Guru app and sure enough there was no carrier aggregation going on, usually a speed test in the background will kick the radio into 2xCA mode if the tower supports it. I saw this same exact behavior with the Moto E4 Plus but I ended up returning that phone for various reasons.
However! After a bit of digging around with some QPST NV items on the chipset I was able to enable 2xCA! And yes, it was certified by the FCC so no worries there! Not sure why they disabled it but I'm trying to gauge if others are seeing the same disabled CA on other variants. I will end up doing a guide on how to enable it if there is enough need.
"But wait!? What's 2xCA?" It's where your phone combines more "lanes" of the LTE highway to give you faster speeds and/or better throughput especially in congested areas. It's a good thing to have when there is no WiFi around.
Motorola even advertises this phone as a Cat 7 LTE modem which is strange that it is a Cat 6 modem shown in the FCC docs. Without CA, it's kinda hard to get 300 megabit down that Cat6 has.

How to enable this?

speed_phreak said:
How to enable this?
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What variant do you have and is it disabled for you too?

I have an xt1806 and I am not sure if it is disabled. Is it in the build.prop?
I haven't rooted yet... Is there a service menu to check?

What carrier is this for and how can we check and enable CA if available?

THERAJ12 said:
What carrier is this for and how can we check and enable CA if available?
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Actually any carrier than supports CA and has it deployed in your area. You'll need root and to install Network Signal Guru to check. If we get a few checks of things out there and we find more with it disabled then I'll do the guide otherwise it would be kinda pointless.

digiblur said:
Actually any carrier than supports CA and has it deployed in your area. You'll need root and to install Network Signal Guru to check. If we get a few checks of things out there and we find more with it disabled then I'll do the guide otherwise it would be kinda pointless.
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I'm on Verizon rooted and I have installed the app, where do I check for CA? Appreciate your help with this.

THERAJ12 said:
I'm on Verizon rooted and I have installed the app, where do I check for CA? Appreciate your help with this.
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Run a speed test in the background on LTE and flip over to NSG. Scroll one screen over and see if it has 1 or 2 carriers listed. Feel free to screenshot.

digiblur said:
Run a speed test in the background on LTE and flip over to NSG. Scroll one screen over and see if it has 1 or 2 carriers listed. Feel free to screenshot.
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Looks like one carrier?

Yep, it should be showing band 13 in the CA mix or possibly band 2 if deployed in your market. Which model is this?

digiblur said:
Yep, it should be showing band 13 in the CA mix or possibly band 2 if deployed in your market. Which model is this?
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i was on band 2 this morning. im in palo alto CA on T-Mobile if that helps.

I also got an xt1806 recently, unlocked on Verizon. I'm in a pretty rural area and speeds are pretty spotty due to obstacles between me and the tower.
Though it does stay in LTE most of the time, on band 13. I'm using LTE Discovery app off of the app store.

SynisterWolf said:
i was on band 2 this morning. im in palo alto CA on T-Mobile if that helps.
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Do you have NSG installed?

mrchman said:
I also got an xt1806 recently, unlocked on Verizon. I'm in a pretty rural area and speeds are pretty spotty due to obstacles between me and the tower.
Though it does stay in LTE most of the time, on band 13. I'm using LTE Discovery app off of the app store.
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I use the SignalCheck Pro app as like the notification and notes on sites. Do you ever see other bands?
Another great app is CellMapper. Maps out your area and estimates tower locations, shows the bands etc. Crowdsourced app, pretty awesome app and website.

digiblur said:
I use the SignalCheck Pro app as like the notification and notes on sites. Do you ever see other bands?
Another great app is CellMapper. Maps out your area and estimates tower locations, shows the bands etc. Crowdsourced app, pretty awesome app and website.
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As expected, using cell mapper, there's no data in this town, severe lack of technology here... I'll use it for awhile to generate some data.
Band 13 is all I ever see. 700MHz~. It apparently sees other LTE bands, but they're not identified.

mrchman said:
As expected, using cell mapper, there's no data in this town, severe lack of technology here... I'll use it for awhile to generate some data.
Band 13 is all I ever see. 700MHz~. It apparently sees other LTE bands, but they're not identified.
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That's still band 13. 5230 is the standard Verizon EARFCN for band 13.

digiblur said:
Yep, it should be showing band 13 in the CA mix or possibly band 2 if deployed in your market. Which model is this?
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XT1806 64gb on Verizon....do I need to enable CA per the method you mentioned before?

THERAJ12 said:
XT1806 64gb on Verizon....do I need to enable CA per the method you mentioned before?
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I haven't done the guide yet, as I've only seen one other person confirm it. Not sure how many other variants there out there or even if they could check if some of those variants are bootloader locked though.

digiblur said:
I haven't done the guide yet, as I've only seen one other person confirm it. Not sure how many other variants there out there or even if they could check if some of those variants are bootloader locked though.
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I unlocked my bootloader and rooted not sure if that is what you were looking for.

Any updates here?

Verizon s8 drive home bands used for rog 2

I used network cell info to track how and what frequency that Verizon used on my phone on my drive home. So at work it uses lte band 13, then drive home usually 2, 13,or 66. Not once did it use 71. 71 is one band the global or US version won't have... At least according to website. I live in NH around portsmouth area. If anyone maybe is interested and wanted to know if you can just jam your Verizon Sim and it should work check your current bands on the app. Will give you a good idea if technically the bands on the Asus phone are there to support you. Idd attach pictures but can't need an url to much work.

Ravippe said:
I used network cell info to track how and what frequency that Verizon used on my phone on my drive home. So at work it uses lte band 13, then drive home usually 2, 13,or 66. Not once did it use 71. 71 is one band the global or US version won't have... At least according to website. I live in NH around portsmouth area. If anyone maybe is interested and wanted to know if you can just jam your Verizon Sim and it should work check your current bands on the app. Will give you a good idea if technically the bands on the Asus phone are there to support you. Idd attach pictures but can't need an url to much work.
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We got band support, we just need confirmation that the IMEI numbers will work on the network.

so even though it says "WILL NOT WORK ON VERIZON", its possible it could work??? i cant believe there isnt more info on this.. i called asus yesterday and the guy put me on hold for about 30min and came back and said "yes sir it WILL work on verizon, but being that it says gsm only i called again to ask someone else and the next guy said it will not work. when this phone was announced i was told this one would work on verizon... wtaf

calls and texts will not work on VZW. VOLTE does not work, so with vzw, it uses cdma(3g) for calls when volte is not available. Dont waste your time. Asus F'd up big time with no volte.

Verizon doesn't use band 71, at least not from any chart I looked at when I started researching this phone. It's TMO that uses it, though.
There is one member here that claimed to get it working on Verizon as data only and using a VoIP service for calls and texts. He was trying to look into adding it as a CDMA-less device, which works for at least one other phone (I think one of the One+ phones). He hasn't updated if it was successful or not.