Database Develop

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.
Click to expand...
Click to collapse
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?
Click to expand...
Click to collapse
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?

WiFi calling on ROG 2

As we all know the ROG 1 did not have WiFi calling baked in. Do we know if any of the ROG 2 ROMs will support WiFi calling/VoWiFi in the USA?

That is a significant driver for me as well.

No, wifi call isn't embedded but on the CN rom it comes with voLTE!

Does the International version have WiFi calling?

A lot of folks don't have their hands on this phone yet, especially here in the states. I ordered one a few weeks ago but it hasn't arrived yet. I plan to test out the CN and WW roms both on T-Mobile and see what I can fiddle around with. Keep in mind the indian version will be released Sept 30th. Thats a 8gb/128gb ROG edition (Non-tencent). So that may carry different specs as well, or its rom may enable different features not yet availble on the tencent 128gb version.

I will be getting mine on Wednesday. It's the 12/512 international model I'm assuming.

My order arrives tomorrow. I'll keep this thread and Twitter (heck maybe even YouTube) apprised.

I would also like to know if the international version has wifi callling because ik for sure the NA version doesn't

I just ordered the USA version directly from ASUS. I guess I will answer my own question when I get the phone in the next week or so. If it doesn't have Volte and VoWiFi it's going back... Every phone made now should have this I hope Asus got it right.

It doesn't, spoke to a rep yesterday. Either cancel ur order before it ships or ur returning it

I'd like more info on this, didn't people say on the China model that t mobile worked and wi fi was avail or voLTE? What about att, will that be different. I'm hesitant just to trust an operator they usually don't have a clue. I think the only way we can be sure is to try, I'm even gonna say that Verizon might work, see I have verizon prepaid and my phone uses band 66 and 13 and 2. It never uses CDMA. I checked using network cell info light. But the reason it may not work because the imei numbers don't register the phone, which will allow data but no txt or calls.
Obviously I will prob switch to att prepaid, but we need someone to stick in a Sim and see if it works with WI fi or voLTE.
Am I correct that there are two models? China and then global? The globals are all the same just various memory or space increases right.? Do all the global models have the same bands, like India and USA, just lower ram or space right? We know Chinas bands are wacky..

- Phone is more balanced than the Razer Phone 2.
- Feels very good in the hand. It is large, but not overbearing.
- Fingerprint scanner in-screen works more reliably than the power button one on the Razer Phone 2.
- Screen looks good, but haven't really messed with it because...
- It doesn't appear to support VoLTE or VoWiFI, per https://imgur.com/a/3HCYFzh Phone drops to GPRS when making a call.
---------- Post added at 09:22 PM ---------- Previous post was at 09:22 PM ----------
If anyone has info on something perhaps I did incorrectly, please let me know.

Is that the North American version of the phone or international, you are talking about?

cyagl643 said:
Is that the North American version of the phone or international, you are talking about?
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North America. Ordered yesterday.

Cellendril said:
North America. Ordered yesterday.
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The more I see the more I'm starting to think hardware is identical between CN and WW versions have identical hardware (except a few radios) and there are a bunch of things (like volte and wifi calling) that Asus can enable via software. I'm guessing the Asus team shifted focus to Android 10 before all the features and bugs got fixed on 9.
Pretty impressive how many features they crammed in and how stable everything is. I have no idea how updates will be, but the software that is here is excellent with a few minor exceptions (work profiles are buggy, assistant studders in Android auto, gestures randomly stop working after 1-2 days, screen off gestures don't let you toggle flashlight, turning off work profile turns Bluetooth off, probably other things I'm missing).
Navigation gestures are great, screen off gestures are super customizable, battery is unbelievable, speakers are unbelievable, camera is just as good as OnePlus 7 pro (although that's very subjective), screen is gorgeous, no curved edges means you can use tempered glass screen protectors, etc. I'm really enjoying mine!

So, lemme get this straight,they put 3 or 4 wifi antennas in there, but it doesn't have vowifi? RIP rog

cyagl643 said:
Is that the North American version of the phone or international, you are talking about?
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Click to collapse
North America. Ordered yesterday.

I can understand, to an extent. You have to make concessions somewhere, but it's little things like that that are going to keep the average user from buying this. That and the lack of band 71 and voLTE. That's why there will never be any custom support for this. Gamers don't code, android enthusiast's do. And an android enthusiast isn't going to buy such a restrictive device.

There seems to be a WIfi option, but it says not provisioned, can you tell us which carrier you are using?

ZeroKool76 said:
I can understand, to an extent. You have to make concessions somewhere, but it's little things like that that are going to keep the average user from buying this. That and the lack of band 71 and voLTE. That's why there will never be any custom support for this. Gamers don't code, android enthusiast's do. And an android enthusiast isn't going to buy such a restrictive device.
Click to expand...
Click to collapse
I can understand no Band 71 to a degree - but then my Razer Phone 2 has it. VoLTE and VoWiFi - esp the latter - make no sense here. Gamers will want to be on WiFi, and most users of this phone will be urban, where signal may suffer indoors. Just odd decision.

is VoLTE and Wifi calling that important?

I have been on T-Mobile for past 2 years and have never used VoLTE mad Wifi calling. I always switch them off on any new phone... Just wanted to see why it is important for so many and if I am missing anything by switching them off...

ram4ufriends said:
I have been on T-Mobile for past 2 years and have never used VoLTE mad Wifi calling. I always switch them off on any new phone... Just wanted to see why it is important for so many and if I am missing anything by switching them off...
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Click to collapse
No VoWifi is really a deal breaker for some people that travel international or go to areas where the cell signal is bad "inside apartments" or non existent but they have access to WiFi.

docfong said:
No VoWifi is really a deal breaker for some people that travel international or go to areas where the cell signal is bad "inside apartments" or non existent but they have access to WiFi.
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Just curious..Does Wifi calling allow incoming calls as well on Wifi when there is no cell signal? Or just outgoing calls?

ram4ufriends said:
Just curious..Does Wifi calling allow incoming calls as well on Wifi when there is no cell signal? Or just outgoing calls?
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It allows everything in and out as well as text and MMS just like you have a full cell signal even though you might be in China in airplane mode with only wifi active. Welcome to 2019!

docfong said:
It allows everything in and out as well as text and MMS just like you have a full cell signal even though you might be in China in airplane mode with only wifi active. Welcome to 2019!
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That's awesome.. didn't know that.. I am planning to buy the India version and use it on T-Mobile.. not sure if it will have those 2 features... It at least has VoLTE for Indian carriers, so I assume it should work on T-Mobile also....

ram4ufriends said:
That's awesome.. didn't know that.. I am planning to buy the India version and use it on T-Mobile.. not sure if it will have those 2 features... It at least has VoLTE for Indian carriers, so I assume it should work on T-Mobile also....
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At this point I wouldn't buy anything till others try it first. There is no guarantee that an India version will do VoLTE or VoWiFi on a USA carrier.

ram4ufriends said:
That's awesome.. didn't know that.. I am planning to buy the India version and use it on T-Mobile.. not sure if it will have those 2 features... It at least has VoLTE for Indian carriers, so I assume it should work on T-Mobile also....
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I could be wrong. But I do believe that the VoLTE ability is carrier specif. Phone manufacturers have to be on the approval list and be able to use the correct bands. In the United States, I also believe that the manufacturers have to pay to be put on that list. I believe it was another thread in this forum that stated something along the lines of 250k (but don't quote me). EU and Asia's markets are handled differently.
(LINK TO OTHER THREAD: https://forum.xda-developers.com/rog-phone-2/help/wifi-calling-rog-2-t3966575/page3) <--Carries and answers some of these questions.

docfong said:
It allows everything in and out as well as text and MMS just like you have a full cell signal even though you might be in China in airplane mode with only wifi active. Welcome to 2019!
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Click to collapse
My office here and in Philly have serious T-Mobile signal issues, but since it’s blanketed with WiFi, not an issue. No VoWifi makes the device useless as a phone in those places, where my iPhone XS and Razer Phone 2 work fine.

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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Click to collapse
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.
Click to expand...
Click to collapse
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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Click to collapse
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.

TMobile volte

Hello,
I happen to live in an area that only has lte coverage so this phone doesn't work for me as volte doesn't work. Which I don't understand why Asus would disable it. I hear this garbage how the carriers have to support it, but why did my previous phone Huawei p30 pro imported from Germany worked fine on TMobile with volte? I would think a phone that isn't even sold here wouldn't work but it does. So I ask why is Asus so stupid and can this be fixed if I root the phone?

Which firmware do you have? I've heard the CN firmware works with VoLTE. Eventually I'm hoping we can build a custom rom to fix all these issues. I guess if you really need to, you can use the T-mobile Digits app as a temporary workaround.

BetaMan10 said:
Hello,
I happen to live in an area that only has lte coverage so this phone doesn't work for me as volte doesn't work. Which I don't understand why Asus would disable it. I hear this garbage how the carriers have to support it, but why did my previous phone Huawei p30 pro imported from Germany worked fine on TMobile with volte? I would think a phone that isn't even sold here wouldn't work but it does. So I ask why is Asus so stupid and can this be fixed if I root the phone?
Click to expand...
Click to collapse
No, return it if VoLTE is a must have for you.

BetaMan10 said:
Hello,
I happen to live in an area that only has lte coverage so this phone doesn't work for me as volte doesn't work. Which I don't understand why Asus would disable it. I hear this garbage how the carriers have to support it, but why did my previous phone Huawei p30 pro imported from Germany worked fine on TMobile with volte? I would think a phone that isn't even sold here wouldn't work but it does. So I ask why is Asus so stupid and can this be fixed if I root the phone?
Click to expand...
Click to collapse
Volte on cn rom only in other countries. Forget about volte in us.

well I don't really use my phone all that much as a phone. And text works just fine so I guess that is going over LTE. I think At&T has 3g where I am. Do they have like a prepaid sim I can get that has like 1000 minutes so I can make outbound calls sometimes? I could then just put that in the second sim slot and go with that. I don't receive inbound calls so I don't care much for that they are all scams nowadays.