yashsingh1/xdaforums huggingface dataset:
[Sony Xperia XZ3 Questions & Answers] iArvee:
I did search for it. Unfortunately, it's not there. :/ This was previously also available when I was using the XZP. However, I was rooted and flashed a fix for it.

Yeah, I don't really see the need for you to use that, not unless it's shipped with another region's firmware. Enjoy your XZ3!
[Sony Xperia XZ3 Questions & Answers] RockStar2005:
Yeah.

Thanks! I'm VERY likely not keeping it though cuz of no Band 71/600 MHz. F'ing Sony Mobile. lol I KNOW I'll prob be tempted to once it arrives though. LOL!!
[Sony Xperia XZ3 Questions & Answers] RockStar2005:
Hey iArvee and everyone,

So my U.S. XZ3 came in today! I set it up after inserting my SIM card, and soon after I tried my 'VoLTE Trick". Here's where I need confirmation.

I thought that proving VoLTE on T-Mobile meant taking a screenshot during the call with it showing "4G LTE or LTE+", but I don't think so anymore. It apparently just means that in addition to seeing it in the settings menu, when you get calls, on the phone stock app it will show "HD Voice" or something like it. But when I disabled VoLTE, the calls downgrade to 3G and the calls take longer to connect.

This is exactly what I encountered. So if all that is true, that means that the U.S. XZ3 IS in fact VoLTE-ready!

See screenshots and let me know your thoughts! I recorded 2 different calls to show that Band 12 still gets detected and apparently does come through.
[Sony Xperia XZ3 Questions & Answers] iArvee:
I have been telling you that VoLTE works on T-mobile. I guess you were just too skeptical or didn't believe me? :D

But anyways, glad to know it works for you! Enjoy your XZ3. :)
[Sony Xperia XZ3 Questions & Answers] fsrkewd:
That's an excellent news! Was thinking of getting xz2 a while back, but decided not to having the volte with T-Mobile .

Can you tell me the model number for your phone? Is it the single sim or dual SIM version?

Thanks in advance!
[Sony Xperia XZ3 Questions & Answers] RockStar2005:
LOL Yeah thanks!

Well, it seems that perhaps getting 4G LTE while in VoLTE isn't the ONLY way to prove you have it, as I thought. Right?? I want to hear from people including YOU iArvee! lol

What I mean is, I only got 4G (not 4G LTE) during calls, but clearly VoLTE was enabled, and Band 12 WAS coming through as well on that one call (screenshots).

One thing I notice though is that compared to like the locked T-Mo LG G6, that stays in 4G LTE while in my condo the whole time, but like the unlocked OnePlus 5 and unlocked XZ3 go back and forth b/t 4G and 4G LTE. I guess being locked into T-Mo's network has some extra benefits? lol
[Sony Xperia XZ3 Questions & Answers] RockStar2005:
Well, still not sure I will be keeping it just yet. I'm waiting for RECONFIRMATION on when T-Mobile will get Band 71/600 MHz spectrum, which the XZ3 doesn't have programmed into it. I was sent a spreadsheet from T-Mobile showing it would be activated in my area by the end of the year. IF that's true, I'd be more hesitant to keep the phone vs. my locked T-Mo LG V30, which DOES have that band included. But if they say there's a delay for say, 6 mos to a year, I might be more open to keeping it. Still waiting to hear back from two different sources at T-Mobile about this. So, we'll see. I'll decide within the next 2 weeks. Until then, it's fun time with the IMMACULATE XZ3! lol :victory:
[Sony Xperia XZ3 Questions & Answers] RockStar2005:
hey fsr,

I assume you have T-Mobile then??

If yes, you're better off just getting the U.S. version vs. the UK version iArvee got if you live in the U.S. Then you won't have to flash it. I got the U.S. version off Amazon (H8416.......... it's the single SIM card version.)

I got it in Black. Looks incredible in person! Was gonna do Forest Green but after seein' more pics of both I decided I'd prob like Black better.

Now whether I keep it is another thing (see last post). lol

Hope this helps!
[Sony Xperia XZ3 Questions & Answers] RockStar2005:
I should also mention that after putting in my T-Mobile SIM card, under "Network & internet" is an option to update the phone's call settings. I tapped on that, the phone downloaded updates from T-Mo I'm assuming, restarted, and VoLTE was there! It MAY have been there before I did that, but it was definitely there (and working!) afterwards. Everyone should do this as well after buying one for use on T-Mobile's network.

This appears to just be for internet and MMS settings, but it still doesn't hurt to do it anyway since you'll want those settings updated too of course! So yeah, it's possible VoLTE was there beforehand.
[Sony Xperia XZ3 Questions & Answers] Funk2641:
So if you're on ATT, you're SOL? lol
[Sony Xperia XZ3 Questions & Answers] zoraver:
Can someone with the US variant of the XZ3 check to see if WiFi calling works on T-Mobile? It would be a bit strange if Sony went through the effort of getting it provisioned for VoLTE and not for WiFi calling.
[Sony Xperia XZ3 Questions & Answers] iArvee:
I have the H8416. It's the single sim version. Bought mine on Clove 2 weeks ago, but it's available on Amazon. However, for some reason, the bordeaux red isn't available on Amazon, which is another reason why I bought mine from Clove.

EDIT:

There's no option in the settings for WiFi calling, unfortunately.
[Sony Xperia XZ3 Questions & Answers] fsrkewd:
Yes, i am on T-Mobile right now, and volte is a must because the u11 plus i have right now doesn't support and i missed so many calls because if that. I may get it from clove tho because it's almost 150 cheaper and it comes with the portable speaker.

---------- Post added at 06:25 PM ---------- Previous post was at 06:20 PM ----------

Thanks! Will probably get it from clove since it's a better deal, but they don't seem to carry the green version. Amazon does seem to carry it, but it doesn't come with the Bluetooth speaker
[Sony Xperia XZ3 Questions & Answers] iArvee:
Exactly why I got it from Clove :D Better deal. Cheaper, came with the XB31, and has a 2 year warranty; plus they have it in red, which is the color I want.
[Sony Xperia XZ3 Questions & Answers] RockStar2005:
Yeah the U.S. didn't get Bordeaux Red unfortunately. Looks pretty nice too. Glad you got it though.

Yes I can concur that my U.S. XZ3 has VoLTE as well but does NOT have Wi-Fi Calling.
[Sony Xperia XZ3 Questions & Answers] RockStar2005:
Oh you mean you missed calls b/c of no VoLTE and therefore no access to Band 12?

Yeah on U.S. Amazon, Sony had a deal for the Black version ONLY of the XZ3 to include the Xperia Ear Duo IF you pre-ordered it in time, which I did. The deal ended one day before the phone went on sale (Wednesday, so deal ended Tuesday). I think they should've done it for all the colors, but whatever. I also think they should sell Bordeaux Red for the U.S. versions too!! lol :cool:
[Sony Xperia XZ3 Questions & Answers] hnt20:
Thank you RockStar2005 for the update, i am glad to hear that VoLTE is working with XZ3. no Wifi calling is interesting, they went half way i guess and only went with VoLTE.

any other issues with the XZ3 so far from your usage? any bluetooth issues?
[Sony Xperia XZ3 Questions & Answers] RockStar2005:
Hey hnt20!

Yeah I am glad too. Well between the two I only real cared about VoLTE. But yeah they should've done both.

No it seems to work fine so far. Didn't get to test it out on BT. I'm sure it's fine though. I still have to test out the camera some more as well, but seems to be great so far.

One thing I wanna ask everyone here: Amazon also sells the 6GB int'l version (H9493) of the XZ3 for cheaper than the U.S. one, and this site seems to confirm that it not only has all the same exact bands one would need for T-Mobile (2, 4, and 12), but

also VoLTE

. Is there ANY reason not to just return the one I have and buy this one?? It's also a Dual SIM version too, though I would only ever use one SIM card.

iArvee..........I wonder now if it was even necessary to flash the U.S. firmware on your UK XZ3 since if that site is correct, both VoLTE and the proper T-Mobile radio bands would still be on the int'l version as well. Thoughts?
[Sony Xperia XZ3 Questions & Answers] RockStar2005:
Update: I spoke with both US and UK Amazon, and they both confirmed the H9493 is only 4 GBs, not 6 like it says on Amazon. The US one also confirmed that both models use the SAME radio bands and both have VoLTE as well.

But still, iArvee, was it even necessary to flash the U.S. firmware on your UK XZ3??

Also, what do you guys who have the XZ3 think of the camera quality, specifically the main camera in low light. Thoughts??
[Sony Xperia XZ3 Questions & Answers] iArvee:
Yes, it was. When I first booted the phone up with my tmobile sim, there was no option to enable VoLTE. I even tried calling and it went down from LTE to 3G. Then I remembered that I was on UK firmware, so it probably didn't have the carrier specifications for the US. Which is probably why I was able to enable the VoLTE when I flashed the US firmware. :)

Comparing it to my XZP, I find the XZ3 to be better, especially in low light photos. Low light photos come out more clear, and less smudged in comparison with the XZP. However, I hate that there's a huge lens flare when taking photos in both low light or daylight.
[Sony Xperia XZ3 Questions & Answers] RockStar2005:
Hmm ok.

And on top of flashing it you also had Sony Companion do a factory reset on it too, right?

I'm guessing then the H9493 on Amazon (Dual SIM) since it's marked "international" will prob need to be flashed. No thank you! lol

I'm going to respond to your camera comments in my new thread. Please respond THERE iArvee about the camera only. Everyone else, please click on that link and let me know your thoughts as well if you have or will be getting the XZ3 anytime in the near future! :good:
[Sony Xperia XZ3 Questions & Answers] iArvee:
I didnt "have" to, I just wanted to. Something felt off after flashing it, so I did a software repair using Xperia Companion just to be sure everything was okay. :)
[Sony Xperia XZ3 Questions & Answers] RockStar2005:
Ok. I guess it's the H8416 for me then!! lol

Thanks.

So which day does your co-worker come back next week? I got some AT&T ppl just DYING to hear from you on that. haha!
[Sony Xperia XZ3 Questions & Answers] RockStar2005:
Hey iArvee,

Can you please check your XZ3 and tell me how much RAM it says you have under the Developer Options tab?? Also, please confirm your model #. I'm guessing it's the H9493, right??

Amazon, eBay, and several other sites are claiming the H9493 has 6 GBs of RAM, but Sony Mobile confirmed for me that it has only 4 GBs. Since you got the int'l one, I'm going to assume yours is the H9493 (again, please confirm that!) and obviously I will take your word above everyone else's. lol
[Sony Xperia XZ3 Questions & Answers] iArvee:
He'll be back for our Halloween party. :D

Do you mean under memory? If so, 4 (3.9 to be exact). No, it's H8416. :)
[Sony Xperia XZ3 Questions & Answers] RockStar2005:
Ok good. LOL!! I have people who I told to subscribe here who are waiting to find out (reconfirmation). lol This time you would just need to take a screenshot of his phone in Call Settings with VoLTE showing as an option. It would make many ppl on here happy. LOL

Oh...........damn!! Ok. I thought u got the H9493.

So 1shopmobile (based in Michigan) claims their H9493 int'l model (same one which is also available on U.S. Amazon) is the Hong Kong version and actually DOES have 6 GBs on it (aka same as Taiwan version). Sony Mobile claims all 3 versions have the same radio bands AND VoLTE (I confirmed this yesterday, and they copy and pasted the info into the chat window), so what's stopping me from just buying the H9493 model off like Amazon then?? LOLL Plus someone on GSM Arena said the Asian versions have even less bloat than the other 2 models do.

From 1shopmobile: Thank you for contacting us.

The current batch that we are offering is HK version and it comes with 6GB RAM.

Thank you

Thoughts??
[Sony Xperia XZ3 Questions & Answers] hnt20:
Stick with Single SIM version that you got (4GB). Dual SIM versions seems to keep breaking with Sony when it comes to VoLTE. You will be taking good risk switching to 6GB of RAM knowing Sony and how they treat US customers.
[Sony Xperia XZ3 Questions & Answers] RockStar2005:
Hey hnt.............I decided to return my XZ3 back last week. In addition to finding out that T-Mobile was going to deploy Band 71 which the XZ3 doesn't have, the main reason for returning it was that I could tell the camera was a clear 1-2 steps BACK from the XZ2 Premium in terms of details. In some cases it was great, like for daytime outdoor shots, and selfies............but for indoor shots, esp in low light, it was not very good. Compared to my LG V30 with modded GCam app, the modded GCam app actually rendered details (i.e. words on a box, screen, movie container, etc.) better, though the XZ3 was ALWAYS more color accurate.

I believe the XZ3 Premium will be everything the XZ3 was supposed to be as it will take the best parts of the XZ2 Premium (having TWO lenses and much higher ISO, etc.) and the XZ3 (18:9 and the OLED screen) and probably will have even more camera improvements as well (OIS I hope!!! lol). So I will be keeping a lookout for that next year. And if I decide to buy it, I'm sure it will be incredible! :good:
[Sony Xperia XZ3 Questions & Answers] RockStar2005:
Hey iArvee..........if you can, please get confirmation of VoLTE on your co-worker's XZ3 (H8416 too I assume) with screenshots when you get a chance. I know a few ppl on here have been PM'ing me about it.

Thanks!! :cool:
[Sony Xperia XZ3 Questions & Answers] iArvee:
Apologies for the late reply. My buddy at work does not have the XZ3, it's just me -- but he has an AT&T sim. Can confirm VoLTE works as well, no screenshots unfortunately. I've been pretty busy lately. Hope that helps in some way!
[Sony Xperia XZ3 Questions & Answers] RockStar2005:
Oh ok.

No problem at all! Just happy you were able to confirm that!

Ok great!! Yes I know at least a few ppl who will find this to be very useful!

Got the T-Mobile OnePlus 6T. So far I'm REALLY liking it! lol Got the modded GCam (aka same app used on the Pixel cameras) app for it so picture quality has def improved even more. Wanted to get the Mate 20 Pro but no VoLTE or Band 71, plus the ones with LG screens have a "green light bleed" issue that's apparent in the dark (other half that don't have the LG phones don't have this issue, but you don't know which one you'll get lol). So gonna wait 'til spring and upgrade again since 6T was so cheap ($300 off trade-in deal on my V30 lol), prob to either the Huawei P30 Pro or maybe the XZ4 Premium? Also maybe open to the S10+. We'll see! lol

Thanks so much!!
[Sony Xperia XZ3 Questions & Answers] Redx11:
Hi All, long time lurker,

Just wanted to say that i brought the TW/HK 6gb version. H9493, Flashed it to a US H8416 and i can confirm that 6gb ram works, and t-mo VoLTE.

I dont know what risks im running but it's working like a charm.
[Sony Xperia XZ3 Questions & Answers] Goronok:
It shows 6GB of ram? On the XZ2 flashing US firmware always showed 4GB
[Sony Xperia XZ3 Questions & Answers] tiunilohmu:
I finally pulled the trigger and bought the 6gb ram model. Flashed with us firmware, but didn't have votle on at&t, however volte on t-mobile tho.. I'm wondering how could he got it worked with at&t?
[Sony Xperia XZ3 Questions & Answers] hnt20:
Did you lose dual sim functionality after US firmware flash?

Does Wifi Calling also work?
[Sony Xperia XZ3 Questions & Answers] tiunilohmu:
I don't use dual sims anyway, plus I'm using 256 microsd. It's fine the functionality is not there.

No WiFi calling as reported before.
[Sony Xperia XZ3 Questions & Answers] *Supersnake*:
Am in total agreement with you RockStar2005 unless someone posts screenshots of the status bar icons showing LTE (or HD in the phone dialer) during a call I will not accept being only told that VOLTE is enabled and working.

Reason being there are far too many phone owners with good intentions who post that they get VoLTE over T-Mobile during calls merely because they see a VoLTE toggle in their phone's settings.

---------- Post added at 09:04 PM ---------- Previous post was at 08:39 PM ----------

Thank you very much for posting those screenshots iArvee!
[Sony Xperia XZ3 Questions & Answers] *Supersnake*:
Can the Google Phone and the Google Clock be installed on the phone? Please use those two links and let me know if GooglePlay shows that you can install those apps. Thanks.
[Sony Xperia XZ3 Questions & Answers] augie7107:
Phone = no

Clock = yes
[Sony Xperia XZ3 Questions & Answers] iArvee:
Just to make sure we're on the same page: VoLTE really does work for Tmobile. :)
[Sony Xperia XZ3 Questions & Answers] *Supersnake*:
LOL, I hear you Arvee :)

Now comes another question I need confirmed. When you click on this Google Phone link with your XZ3 does the PlayStore read "This app is compatible with your device" or "This app is not compatible with your device"?
[Sony Xperia XZ3 Questions & Answers] *Supersnake*:
Did you try those links with an XZ3 or was it another Sony phone?
[Sony Xperia XZ3 Questions & Answers] iArvee:
Not compatible unfortunately. Even with my old XZP.
[Sony Xperia XZ3 Questions & Answers] augie7107:
This is the XZ3 forum, correct? I used the XZ3. I wouldn't report the ability to install for a different phone in the incorrect forum.
[Sony Xperia XZ3 Questions & Answers] *Supersnake*:
Thank you for your findings Augie :o

My apologies for the inappropriate question. When I read your post I was very tired and had eye strain thinking that you typed Yes for both the clock and the phone.:(
[Sony Xperia XZ3 Questions & Answers] augie7107:
No problem, I have done that also back in my testing days, lol
[Sony Xperia XZ3 Questions & Answers] *Supersnake*:
:o Thanks, I don't feel so bad now.

---------- Post added at 07:28 AM ---------- Previous post was at 07:20 AM ----------

Thank you iArvee, and thanks for the screenshot :)
[Sony Xperia XZ3 Questions & Answers] XperiaNexus333:
How can I get voice over LTE to start working. I have the unlocked xz3 in the US T-Mobile. I have tried downloading the internet and MMS settings and I've also restarted and reset network settings???
[Sony Xperia XZ3 Questions & Answers] RockStar2005:
From what I remember when I had my XZ3, VoLTE is "automatically baked" into the Settings. Even on locked T-Mobile phones that came out SINCE last year, it doesn't show up in Settings either, but it's THERE.

To confirm VoLTE is enabled, make a call to whoever, and if DURING the call, the phone stays in 4G LTE (aka LTE I believe), then VoLTE IS ENABLED. If it goes to 4G (aka HSPA+ or whatever), then it's not. Also, if making the call with the stock phone app, you should see "HD+" or "HD Voice" somewhere near the top area of the display DURING a call if VoLTE is enabled. But the 4G LTE thing is the more important indicator IMO.

If not, post back here and I'll try to help you out. This link will tell you the current and best T-Mo settings. See "Android APN Settings" and makes sure it matches what you have. Also, NO spaces after the commas.
[Sony Xperia XZ3 Questions & Answers] XperiaNexus333:
I updated the APN, restarted and it's still not working. The only difference is, on my settings it has "ut" on the line that says default,mms,supl,ut. Not sure if I should remove it or not. Also, can anyone tell me the current US security patch? Mine is on August 2018 and that doesnt seem right...
[Sony Xperia XZ3 Questions & Answers] RockStar2005:
You need to copy the APN EXACTLY "as is" in the link I gave you. No exceptions. Then yeah do a soft restart.

Other things:

1) When I had my XZ3, I noticed that when using the SIM card that came with the phone, VoLTE wouldn't work either (I had a post about it somewhere earlier in this thread I believe). But when I put in the SIM card from my last phone (LG V30), which was a T-Mobile-issued SIM card that came with the locked V30 I'd bought from them, it worked! So you MAY need to stop in at T-Mobile and get a SIM card from them. I'd make this my LAST resort though if nothing else works.

2) Yeah do the APN settings as instructed, soft reset, and if it still doesn't work, you may wanna do a software repair or update using Sony's Xperia Companion software. It will factory reset the phone and ensure you have the latest software on there. iArvee has mentioned this working many times in this thread. Just install onto your desktop then connect phone to that PC and go from there.
[Sony Xperia XZ3 Questions & Answers] XperiaNexus333:
Anyone have any idea which security patch I should have?
[Sony Xperia XZ3 Questions & Answers] XperiaNexus333:
This is so frustrating, the only reason I bought this phone was because I thought it had VoLTE. I even did a repair with Xperia companion and it didn't work to give me the option for VoLTE. It did put me on the October security patch. Which still seems wrong because I thought Sony was right behind Google with the security patches.....
[Sony Xperia XZ3 Questions & Answers] RockStar2005:
I C. Yeah it is.

Did you try using a SIM card FROM T-Mobile? I don't know why, but again, when I used the T-Mobile-issued SIM card from my T-Mo LG V30, VoLTE worked fine. But when I used the one that came with the phone, VoLTE would not work. If you've put in the correct APN settings, and did the Xperia Companion software repair or update (can't remember which one now, I think update though), then that's what I'd do. If THAT doesn't work.............I'd return it.

Oh, what MODEL XZ3 do you have? Even though you can use the Companion program to flash to the U.S. version, if yours is an int'l version, that MIGHT be why it's not working. Let me know.
[Sony Xperia XZ3 Questions & Answers] RockStar2005:
Also (in addition to my last post), if you happen to already HAVE a T-Mobile-issued SIM card (like from your last phone perhaps), and it's fairly new (1-2 years old), I'd pop THAT one into your XZ3 and see if VoLTE works then. If not, then get one from the store.
[Sony Xperia XZ3 Questions & Answers] XperiaNexus333:
It's definitely a US unlocked. I ordered a new SIM card from T-Mobile. The one I have is fairly old. Hopefully after activating with a new SIM card it will work. I did notice something weird though. Each time (3) I set up the phone after a factory reset or Xperia companion, it would not use LTE. I had to set up the phone on wifi then go into settings and manually click on the LTE(PREFFERED). Any idea on that?
[Sony Xperia XZ3 Questions & Answers] RockStar2005:
Ok, if it's old then I have a good feeling the new one will do the trick! :good: Please keep us posted.

Is that LTE issue still occurring? Not sure what's going on there. Just make sure the APN settings are correct, then reset the phone. After doing that, lemme know if it's still happening.
[Sony Xperia XZ3 Questions & Answers] RockStar2005:
Lemme know also....... do you see Wi-Fi Calling listed in the Settings?
[Sony Xperia XZ3 Questions & Answers] XperiaNexus333:
No. I do not see any "Advanced Calling Features". Even searching for them only brings up Xperia Support Q&As.

---------- Post added at 01:31 PM ---------- Previous post was at 01:24 PM ----------

The only thing is though, I get VoLTE on my U12+ always. Before I got the XZ3 I always had it and I've taken the SIM card out of the XZ3 three times since and put it back in my U12+ and I still get VoLTE on the HTC. That's one thing I've always loved about HTC phones. They just work. Now though, after having this screen, it's hard to go back to the U12+. If I could get VoLTE to work on this phone, I'll keep it. If not, I may just go back to the U12+. I am bewildered...
[Sony Xperia XZ3 Questions & Answers] iArvee:
Are you on US firmware? As I've stated before, I was previously on the UK firmware and had no option for VoLTE. Upon flashing the US firmware, VoLTE was available as an option.
[Sony Xperia XZ3 Questions & Answers] RockStar2005:
Ok then NVM. If you ever see Wi-Fi Calling in ANY phone, ALWAYS switch the setting in it to "Cellular Preferred". Just trust me. lol

Yeah I dunno man. F'in Sony Mobile. lol Yes that XZ3 display was RIDICULOUS! I loved it too.
[Sony Xperia XZ3 Questions & Answers] XperiaNexus333:
Hopefully the screenshot posts.