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[Q] Moto X GSM Unlocked T-Mobile works outside the US?

Hi!
I'm planning to buy a customized Moto X unlocked GSM edition but I'm wondering if it'll work outside the US.
At Moto they don't know as "they haven't tried it". And is confusing as it says on their website that is GSM unlocked but comes with a t-mobile sim card, so it's unlocked to work with t-mobile and at&t only or also open to other compatible GSM networks around the world? Has anyone had the chance to try it?

aricris said:
Hi!
I'm planning to buy a customized Moto X unlocked GSM edition but I'm wondering if it'll work outside the US.
At Moto they don't know as "they haven't tried it". And is confusing as it says on their website that is GSM unlocked but comes with a t-mobile sim card, so it's unlocked to work with t-mobile and at&t only or also open to other compatible GSM networks around the world? Has anyone had the chance to try it?
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Most phones shipped these days support most 2g/3g bands to support international roaming features. Say you're going to Europe, i wouldn't count on you getting anywhere near LTE speeds or even 4g speeds because there networks aren't that developed yet, put in simple terms, but there's a good chance that you can still get a supported 2g/3g connection, does that make sense? I would take it with me if i were you, no harm in that right?

moto x in Belgium
I got my T-mobile Moto X shipped to Belgium, it works on the local GSM networks.

joemon871 said:
Most phones shipped these days support most 2g/3g bands to support international roaming features. Say you're going to Europe, i wouldn't count on you getting anywhere near LTE speeds or even 4g speeds because there networks aren't that developed yet, put in simple terms, but there's a good chance that you can still get a supported 2g/3g connection, does that make sense? I would take it with me if i were you, no harm in that right?
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We have 4G in our little East-European country, Romania (probably you never heard of it)

TheSaw said:
We have 4G in our little East-European country, Romania (probably you never heard of it)
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I heard of it What you can do is find out what network bands your cellphone company back in Romania uses and see if your phone supports it. There's a good chance your phone will support one of their bands though

joemon871 said:
I heard of it What you can do is find out what network bands your cellphone company back in Romania uses and see if your phone supports it. There's a good chance your phone will support one of their bands though
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They support it for 2G/3G, but not above. The bands are different for LTE.

TheSaw said:
They support it for 2G/3G, but not above. The bands are different for LTE.
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Yup exactly as i predicted first post but hey good news is at least you'll be able to use the phone. Use WiFi for your internet needs

joemon871 said:
Yup exactly as i predicted first post but hey good news is at least you'll be able to use the phone. Use WiFi for your internet needs
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3G is fast enough. As the 4G network is not fully developed (no full country coverage), and the prices are still high, I don't think it's really worth stressing too much about it. I ordered myself a MotoX from the states with a non-compatible LTE hardware just now. I know that I won't use that technology in a comfortable way anyways for the next 2 years. For my personal needs, 3G+ is more than enough.

TheSaw said:
3G is fast enough. As the 4G network is not fully developed (no full country coverage), and the prices are still high, I don't think it's really worth stressing too much about it. I ordered myself a MotoX from the states with a non-compatible LTE hardware just now. I know that I won't use that technology in a comfortable way anyways for the next 2 years. For my personal needs, 3G+ is more than enough.
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Ya don't worry about it too much because it sounds like you're a casual user, mainly for emails and such I'm guessing? But anyways Lte speeds are really going to take off in the next couple years so you'll be in for a treat when you get back Happy Journey!
Sent from my SGH-M919 using Tapatalk

joemon871 said:
Ya don't worry about it too much because it sounds like you're a casual user, mainly for emails and such I'm guessing? But anyways Lte speeds are really going to take off in the next couple years so you'll be in for a treat when you get back Happy Journey!
Sent from my SGH-M919 using Tapatalk
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Well I could say casual user, I guess, but I use mostly wifi wherever I spend more time. Home, work, friends place, all have good wifi, so when I'm out, I switch to 3G, and in that time I don't really need super fast speeds.
Thanks.

TheSaw said:
We have 4G in our little East-European country, Romania (probably you never heard of it)
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Romania?? of course I have!! have u heard about Ecuador? haha
At high school we studied most countries name around the world =) not as in...u may know where
And thanks!! means that it's really unlocked

joemon871 said:
Most phones shipped these days support most 2g/3g bands to support international roaming features. Say you're going to Europe, i wouldn't count on you getting anywhere near LTE speeds or even 4g speeds because there networks aren't that developed yet, put in simple terms, but there's a good chance that you can still get a supported 2g/3g connection, does that make sense? I would take it with me if i were you, no harm in that right?
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Makes sense and the harm is like $430 haha and then the time n money to unlock it. But now anymore by knowing that some people had try it outside the US .
My worry was about if it's really unlocked as I'm buying it to use it in Ecuador most of the time. And when u buy it, it says that they give u a t-mobile sim card so that's confusing.
Bought it yesterday

aricris said:
Makes sense and the harm is like $430 haha and then the time n money to unlock it. But now anymore by knowing that some people had try it outside the US .
My worry was about if it's really unlocked as I'm buying it to use it in Ecuador most of the time. And when u buy it, it says that they give u a t-mobile sim card so that's confusing.
Bought it yesterday
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Haha guess you'll have to find out yourself eh? let us know if it works

Works outside the us!
If you want it...buy it because it works!! The NO CONTRACT MOTO X is fully unlocked!!
Comes with a t-mobile nano card but that's no problem...I guess if that I need it at the US someday, I will have to activate it.

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.
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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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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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F'ers!! lol
Thanks anyway acme.

RockStar2005 said:
F'ers!! lol
Thanks anyway acme.
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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
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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!!
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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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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
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So do you have T-Mobile too?

RockStar2005 said:
So do you have T-Mobile too?
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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 >:/
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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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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.
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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.
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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)_/¯
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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)_/¯
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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.
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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.
Click to expand...
Click to collapse
Have you?

U.S. Sony Xperia XZ3 & VoLTE on AT&T??

I was just wondering...........will Sony phones like the upcoming Xperia XZ3 (U.S. version, release date: 10/17/2018) be able to access ALL of AT&T's network radio bands without VoLTE certification? I know T-Mobile doesn't allow access to their 700 MHz spectrum (aka Band 12) without VoLTE certification, but does AT&T require the same thing? Or will users get FULL access, just no VoLTE?? Also, does AT&T actually require VoLTE certification??
Thank You!

I'm on T-mobile and VoLTE works fine. I inserted my coworker's AT&T sim and had the option to enable VoLTE. Unfortunately, I did not think to actually test it.

iArvee said:
I'm on T-mobile and VoLTE works fine. I inserted my coworker's AT&T sim and had the option to enable VoLTE. Unfortunately, I did not think to actually test it.
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Hi.......thanks for responding!
Wait.........which exact Xperia phone do you have, and is it a U.S. version or int'l? I know it can't be the XZ3 as it (the U.S. version) doesn't get released on Amazon until next Wednesday.
Ok wait.........nevermind. Your signature logo tells me you have the 2017 XZ Premium. But is it the U.S. version or int'l??
Ok that is interesting about your phone showing the option to enable VoLTE with your co-worker's AT&T SIM card too. I'm sure if it actually showed up as an option that wasn't grayed out then it should definitely work too.
I wanted to know if a company like Sony didn't certify VoLTE with AT&T, would people who use their phones on AT&T's network get full access to ALL of AT&T's radio bands or no. If what you're saying is true, then perhaps they do? I don't know. lol

RockStar2005 said:
Hi.......thanks for responding!
Wait.........which exact Xperia phone do you have, and is it a U.S. version or int'l? I know it can't be the XZ3 as it (the U.S. version) doesn't get released on Amazon until next Wednesday.
Ok wait.........nevermind. Your signature logo tells me you have the 2017 XZ Premium. But is it the U.S. version or int'l??
Ok that is interesting about your phone showing the option to enable VoLTE with your co-worker's AT&T SIM card too. I'm sure if it actually showed up as an option that wasn't grayed out then it should definitely work too.
I wanted to know if a company like Sony didn't certify VoLTE with AT&T, would people who use their phones on AT&T's network get full access to ALL of AT&T's radio bands or no. If what you're saying is true, then perhaps they do? I don't know. lol
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I have the XZ3. I bought it from Clove (UK), flashed with US firmware. The signature doesn't have the XZ3 in their database yet, so I can't update it. I'd love to test it for you again tomorrow when I get to work, however he's on vacation for 2 weeks.

iArvee said:
I have the XZ3. I bought it from Clove (UK), flashed with US firmware. The signature doesn't have the XZ3 in their database yet, so I can't update it. I'd love to test it for you again tomorrow when I get to work, however he's on vacation for 2 weeks.
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Oh wow, cool!
So basically you're running a U.S. version then it seems, which is helpful.
Ha! Of course he is. Just my luck! lol
It's fine. I have T-Mobile, but thought that was a "dead issue" since Sony ONLY OFFICIALLY certified the XZ1 Compact with T-Mobile. When he gets back that would be cool if you could though as I have a friend who has AT&T and would like to know.
I guess I'm just shocked b/c this site doesn't have any information about really any recent Xperia flagships having VoLTE (and therefore access to Band 12/700 MHz). So you've tested your phone out using some kind of app to confirm that it can ACTUALLY access T-Mobile's Band 12 spectrum?? And I assume it stays on 4G LTE during calls too? (Please kindly answer both questions.)
Even if all this is true, what sux is the XZ3 (all versions) apparently DOESN'T have Band 71/600 MHz (under 4G LTE) spectrum programmed on it, regardless of version. And according to a recent update from T-Mobile, my area (Chicagoland region) is about to get that exact radio band by like the end of the year. Uggh.........f'ing Sony Mobile! lol

RockStar2005 said:
Oh wow, cool!
So basically you're running a U.S. version then it seems, which is helpful.
Ha! Of course he is. Just my luck! lol
It's fine. I have T-Mobile, but thought that was a "dead issue" since Sony ONLY OFFICIALLY certified the XZ1 Compact with T-Mobile. When he gets back that would be cool if you could though as I have a friend who has AT&T and would like to know.
I guess I'm just shocked b/c this site doesn't have any information about really any recent Xperia flagships having VoLTE (and therefore access to Band 12/700 MHz). So you've tested your phone out using some kind of app to confirm that it can ACTUALLY access T-Mobile's Band 12 spectrum?? And I assume it stays on 4G LTE during calls too? (Please kindly answer both questions.)
Even if all this is true, what sux is the XZ3 (all versions) apparently DOESN'T have Band 71/600 MHz (under 4G LTE) spectrum programmed on it, regardless of version. And according to a recent update from T-Mobile, my area (Chicagoland region) is about to get that exact radio band by like the end of the year. Uggh.........f'ing Sony Mobile! lol
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I used LTE Discovery to check what band I'm on and it's saying Band 4. And yes, it stays on LTE during calls. Refer to screenshots (attachments).

iArvee said:
I used LTE Discovery to check what band I'm on and it's saying Band 4. And yes, it stays on LTE during calls. Refer to screenshots (attachments).
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Yes, that's the app, LTE Discovery! I couldn't remember the name of it earlier. lol
Did they finally add Band 71/600 MHz to its list of bands it can detect??
So can I presume that 4G LTE & LTE+ are the exact same thing??
Ok but what about Band 12 though? That's the band that T-Mobile is supposed to require VoLTE certification for in order to access it. An LTE Discovery screenshot of that (must be during a call) would be great actually! I believe it can access Band 12 for data, but the thing I care about is having access to it for calls.
And ok your profile says you're from or in Manila?? I'm confused. lol I hope it's just from b/c if you're not in the U.S. then this info is kinda useless to me. lol
Thanks!!!!!!!

RockStar2005 said:
Yes, that's the app, LTE Discovery! I couldn't remember the name of it earlier. lol
Did they finally add Band 71/600 MHz to its list of bands it can detect??
So can I presume that 4G LTE & LTE+ are the exact same thing??
Ok but what about Band 12 though? That's the band that T-Mobile is supposed to require VoLTE certification for in order to access it. An LTE Discovery screenshot of that (must be during a call) would be great actually! You I believe can access Band 12 for data, but the thing I care about is having access to it for calls.
And ok your profile says you're from or in Manila?? I'm confused. lol I hope it's just from b/c if you're not in the U.S. then this info is kinda useless to me. lol
Thanks!!!!!!!
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I'm not sure if they added Band 71, doesn't really say in the app. I guess you'll have to contact the developer for that. I have no knowledge of where Band 12 is deployed. I'm in the Philadelphia area right now. Signature is just where I'm from.

iArvee said:
I'm not sure if they added Band 71, doesn't really say in the app. I guess you'll have to contact the developer for that. I have no knowledge of where Band 12 is deployed. I'm in the Philadelphia area right now. Signature is just where I'm from.
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Oh ok. Not a big deal. I can just download it again and check it too. It would say in the Settings. When my area first got Band 12/700 MHz, I used the app to detect and notify me of every time it found a Band 12 signal. Shortly after, it began to pop up when I was like in elevators and parts of downtown Chicago, etc., which made me very happy. lol
You can check this map, though of course I think Band 12 will only get utilized when Bands 2 & 4 are not available. Philly? Ok great!! It appears you do have it too.
Well so far this is really great news!! I just can't understand why no one else is confirming this like on that site I linked earlier?? I would assume the U.S. version then will have it too since your firmware is U.S. for the XZ3.
Nice. I used to have a good friend who was Filipino too. Just lost touch over the years.
Thanks again so much!!

iArvee said:
I'm not sure if they added Band 71, doesn't really say in the app. I guess you'll have to contact the developer for that. I have no knowledge of where Band 12 is deployed. I'm in the Philadelphia area right now. Signature is just where I'm from.
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I checked and LTE Discovery does NOT currently offer Band 71 detection at this time. So I e-mailed the developer a few hours ago and requested it. Hopefully they add it soon so I can detect Band 71 when it hits my area in the next few months.
Thanks again for all your input! Much appreciated! I will check back with you in a couple weeks. In the mean time, I'm honestly CONSIDERING buying the U.S. XZ3 off Amazon (gets released next Wed) and testing it out myself. LOL I get Band 12 in my condo elevator and parking lot too sometimes, so I should be able to get a screenshot of the phone in Band 12 DURING a call via LTE Discovery when it's detected. But I doubt I'd keep it up cuz no Band 71. FML! lol Still, I'd wanna know for myself so that perhaps when the XZ4 comes out (or XZ3 Premium) if it will have Band 71 and VoLTE confirmed, I will most likely buy & keep it.

RockStar2005 said:
I checked and LTE Discovery does NOT currently offer Band 71 detection at this time. So I e-mailed the developer a few hours ago and requested it. Hopefully they add it soon so I can detect Band 71 when it hits my area in the next few months.
Thanks again for all your input! Much appreciated! I will check back with you in a couple weeks. In the mean time, I'm honestly CONSIDERING buying the U.S. XZ3 off Amazon (gets released next Wed) and testing it out myself. LOL I get Band 12 in my condo elevator and parking lot too sometimes, so I should be able to get a screenshot of the phone in Band 12 DURING a call via LTE Discovery when it's detected. But I doubt I'd keep it up cuz no Band 71. FML! lol Still, I'd wanna know for myself so that perhaps when the XZ4 comes out (or XZ3 Premium) if it will have Band 71 and VoLTE confirmed, I will most likely buy & keep it.
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Yeah, the XZ3 is a really nice phone. Comparing it with my XZP, I believe it's a nice upgrade. Not a required upgrade, but still a nice one. You can also just wait for it to be available in Best Buy or something so you can try the phone out without buying it. If it comes out in Best Buy. I assume it will, since the XZ2P was.

iArvee said:
I have the XZ3. I bought it from Clove (UK), flashed with US firmware. The signature doesn't have the XZ3 in their database yet, so I can't update it. I'd love to test it for you again tomorrow when I get to work, however he's on vacation for 2 weeks.
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I just got mine from clove as well - I'm on ATT and I don't see the option for VoLTE. Can you tell me where you found the US firmware and how to flash it? Thanks

Funk2641 said:
I just got mine from clove as well - I'm on ATT and I don't see the option for VoLTE. Can you tell me where you found the US firmware and how to flash it? Thanks
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Yeah, it won't show since you're still on UK firmware. Download the US firmware from Xperifirm, then use newflasher to flash it. Flashtool doesn't support the XZ3 yet.
After I used newflasher, things didn't feel right, so I just used the Xperia Companion to do a Software Repair. Basically the same thing as a full wipe, but it'll just download the latest firmware from the region you're currently on.

iArvee said:
Yeah, the XZ3 is a really nice phone. Comparing it with my XZP, I believe it's a nice upgrade. Not a required upgrade, but still a nice one. You can also just wait for it to be available in Best Buy or something so you can try the phone out without buying it. If it comes out in Best Buy. I assume it will, since the XZ2P was.
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Yeah I would agree. Yes the XZP has a 4K screen, but not HDR (which of course the XZ2 P got both). The XZ3 having 2K + HDR is really something. Yeah plus it's 18:9 which I DEF prefer over 16:9, and yeah 845 processor.
Typically both Best Buy & Amazon get the newest Xperia phones. But for some reason, even at this point, it appears ONLY Amazon will carry the U.S. XZ3.
So...........even though it won't have Band 71/600 MHz when released, I decided to STILL go ahead and pre-order the U.S. XZ3 off Amazon (release date: next Wed) JUST to confirm for myself what you said and showed me................that with the U.S. firmware, the XZ3 WILL get VoLTE on T-Mobile and therefore will STAY in Band 12 & 4G LTE/LTE+ while on a call as well. If I can confirm this, that is HUGE. HUGGGGGGGGGGGGEEEE!!!! lol
I will of course keep you posted. In the elevator for my condo building b/c the reception is bad there, my phone always at one point switches to Band 12..........and THAT is when I'll strike. When my LTE Discovery app detects Band 12 being utilized, I will make a call right away, and if it stays in 4G LTE, then it's confirmed. If not, F U Sony Mobile!!!!!! F U and die! lol Then for XZ4 or XZ3 Premium, as long as they add Band 71/600 MHz (which my area will get activated on T-Mobile's network by about the end of this year), I'm 99.9% buying it. lol
Thanks again!!

Good luck RockStar2005, I am not optimistic, I hope it works with T-Mobile VoLTE.

hnt20 said:
Good luck RockStar2005, I am not optimistic, I hope it works with T-Mobile VoLTE.
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Hey hnt20.......thanks! lol
How ya been?
Well I hope it works too! But if not, it will be nice to say I got to try out the newest and even greatest Xperia phone in years!
Hope all is well with you.

iArvee said:
I'm on T-mobile and VoLTE works fine. I inserted my coworker's AT&T sim and had the option to enable VoLTE. Unfortunately, I did not think to actually test it.
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Are you sure VOLTE works on T-Mobile? It used to switch "H" on calls. How about wifi calling?

daviddem said:
Are you sure VOLTE works on T-Mobile? It used to switch "H" on calls. How about wifi calling?
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Yes, 100% sure. Are you running the US firmware?
Can't seem to find wifi calling in the settings.

iArvee said:
Yeah, it won't show since you're still on UK firmware. Download the US firmware from Xperifirm, then use newflasher to flash it. Flashtool doesn't support the XZ3 yet.
After I used newflasher, things didn't feel right, so I just used the Xperia Companion to do a Software Repair. Basically the same thing as a full wipe, but it'll just download the latest firmware from the region you're currently on.
Click to expand...
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Unfortunately, I'm running into some errors while trying to flash via newflasher:
no usb device with vid:0x0fce pid:0xb00b !
Press any key to continue . . .
Am I missing something? I have the XZ3 in flash mode (green led, no screen on) and the newflasher.exe in the firmware directory. Am I missing something?

Funk2641 said:
Unfortunately, I'm running into some errors while trying to flash via newflasher:
no usb device with vid:0x0fce pid:0xb00b !
Press any key to continue . . .
Am I missing something? I have the XZ3 in flash mode (green led, no screen on) and the newflasher.exe in the firmware directory. Am I missing something?
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Did you install the gordon gate drivers? Also make sure that you installed the XZ3 drivers too. (https://developer.sony.com/develop/drivers/)

Wifi calling and voLTE on Att only

Wanted to ask if anyone with a USA model rog 2 tried att Sim card and did it work with att? We already know t-mobile doesn't list those options. This way we can all go search for phones that will suit our needs.

My US model will be delivered either Saturday or Monday and I use AT&T. Will post my results then.

I just talked to support again, and they said no VoLTE or VoWifi on Tmobile, Verizon, or AT&T, or any American carrier. They have no plans to enable it. The suggestion was that I leave them a complaint, so I did so via their form on Asus.com as well as Facebook.

The problem is AT&T is shutting down their 3G service this year so if VoLTE isn't enabled we can't make voice calls.

TawkinTrash said:
The problem is AT&T is shutting down their 3G service this year so if VoLTE isn't enabled we can't make voice calls.
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As is TMobile, from what I understand. You should be able to make calls, but it will default to EDGE, IIRC.

Cellendril said:
As is TMobile, from what I understand. You should be able to make calls, but it will default to EDGE, IIRC.
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Ok I just tried to confirm and got info they're not shutting down 3G just yet. We still have a few more years.
I guess that's good we'll still have calls but isn't good because there's no reason for VoLTE.

Thanks to ryououki for the offer, we will await your testing and we will be here if u need any help

I seriously don't understand a U.S model, yet no volte? That's just dumb. Wtf?

I can tell you right now it wont work, Its a sick phone but I'm sending it back because of this. Asus screwed up with no VoLTE, no VoWiFi, and only a 1080p screen IMO. Maybe next time they will get it right. I hope the OnePlus 7T and the 7T Pro has it... Crazy!

Just read this for T-Mobile:
Due to lack of VoLTE support you won't be able to place and receive calls including 911 calls in some buildings and some outdoor areas where 2G GSM and 3G HSPA+ signal (marketed by T-Mobile as "4G") is too weak or non-existent while LTE band 12 is available

Great info so far , just need someone to try it with att sim for confirmation.
So far we know,
Tmobile no go on volte or wifi call
Verizon works on data only no calls or txt just like rog one. Cdmaless option unclear at this moment .
Att no test yet

I have a US model on AT&T and can't get VoLTE yet.
I talked to AT&T support and they said there's no compatibility yet.
The IMEI doesn't come up in their system as a known device.

I have at&t and a USA version of the phone, I can confirm as well that the phone drops to 3g when making voice calls.
This is really really bad because at&t plans to shut down their 3g in 2021, that means no voice calls after that. Asus USA knowingly selling a $900 phone that cant make a call in 2 years is borderline fraudulent.

yok3 said:
I have at&t and a USA version of the phone, I can confirm as well that the phone drops to 3g when making voice calls.
This is really really bad because at&t plans to shut down their 3g in 2021, that means no voice calls after that. Asus USA knowingly selling a $900 phone that cant make a call in 2 years is borderline fraudulent.
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I have to agree. Its just dumb.
Someone needs to see if something like this can work.....
https://forum.xda-developers.com/Mi-9/how-to/wifi-calling-volte-mi-9-t3917887
There has to be options somewhere we can atleast get VOLTE working. Yes root will be mandatory, but i am ok with that. I might order one from amazon. Whats the return policy for phones on amazon? Anyone know?

I believe there were reports that VoLTE was working on Tencent models?
We really need to look into making a custom rom for our phones for the US carriers.

Did you try dialer codes *#*#VOWIFI#*#* and *#*#VOLTE#*#*

How ridiculous. This is how you ruin a near perfect phone.

stealthj said:
I believe there were reports that VoLTE was working on Tencent models?
We really need to look into making a custom rom for our phones for the US carriers.
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I did more research, it seems to be more on the AT&T side than on the Asus side of things. Barring a few well-know phones like the Pixel 3, most BYOD Android devices on AT&T in general don't get VoLTE, including unlocked versions of Samsung Galaxy devices that are not purchased through AT&T. It looks like AT&T does not enable VoLTE for device models with IMEIs that it does not recognize (i.e. doesn't have AT&T certified ROMs), because they are afraid of getting fined by FCC for non-E911 compliance which requires the carrier to certify E911 support on all handset/firmware when on VoLTE. My guess the Tencent models with VoLTE working are somehow whitelisted by AT&T ad-hoc or they are working on Non-U.S. carriers. So it is more of an AT&T problem than an Asus/ROM issue. (though there may be ROM hacks to ask the handset to force VoLTE even if AT&T doesn't advertise the capability during protocol handshake).
Since this is a much bigger issue than just the ROG II phone, hopefully they have a plan to white list all BYOD Android devices for VoLTE when they sunset 3G. Otherwise AT&T would stand to lose a good chunk of revenue from those who migrate over from other carriers with BYOD phones, say a Galaxy phone with a T-Mobile ROM. You simply can't even offer a BYOD plan if you don't have voice call working for most of the BYOD Android devices.

suzook said:
I have to agree. Its just dumb.
Someone needs to see if something like this can work.....
https://forum.xda-developers.com/Mi-9/how-to/wifi-calling-volte-mi-9-t3917887
There has to be options somewhere we can atleast get VOLTE working. Yes root will be mandatory, but i am ok with that. I might order one from amazon. Whats the return policy for phones on amazon? Anyone know?
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I'm pretty sure their return policy for phones is the same as all other goods. I bought and returned the original ROG phone last year through Amazon, considering doing the same with ROG II unless there's a breakthrough on providers and features with custom ROMS/etc.

Yea that's pretty dirty to whitelist the Tencent version but not the US model.