Folks,
I know this has been discussed before, but those discussions are from last year, and things change, so...
Does VoLTE and VoWifi work OK on the Mate 10 Pro on O2? They work great on EE, but I'm thinking of changing to O2, and would like VoLTE and need VoWiFi (where I work is a cellular black hole due to thick steel/concrete walls).
I don't want to go to the bother of moving to O2 only to discover those don't work.
Thanks!
After using an Unlocked S8 U1 on AT&T for the past few years, I decided to get the S9+ (since I don't care for the S10).
I order two S9+ (renewed) from Amazon: the AT&T S9+ model (G965U) and the Unlocked Model (G965U1), since I wanted to see if VoLTE and WiFi Calling would work on my Pre-Paid plan.
The AT&T G965U does work fine with VoLTE and WiFi Calling, but the unit has some nasty fall marks on it, and the volume buttons don't work well, so it's going back.
The Unlocked G965U1 only has a few minor screen scratches, but overall is in better condition than the AT&T G965U, but VoLTE and WiFi Calling doesn't work.
So I'm not sure what to do.
I can clearly hear the difference in Call Quality between the model with VoLTE and without (HSPA calls).
It's too bad AT&T still won't allow VoLTE on non-AT&T Branded Samsung phones.
I have read countless posts on S9/S9+ Firmware and CSC flashing with ODIN (which I'm familiar using) but I can't find a definite answer on if there's way to take an Unlocked S9+ U1 and flash it so that VoLTE will work. I know WiFi Calling won't work, since the IMEI has to be on AT&T Whitelist.
As of right now, the S9+ is on the latest firmware G965U1UEU7CSJ3.
Just to give an update. I was able to flash the S9 Plus G965U1 Unlocked model with the AT&T CSI5 firmware as shown in the Guides section. After that, the S9+ was able to use VoLTE and WiFI Calling on my AT&T Prepaid plan.
I had also ordered a (used/renewed) Note 9, and when I got it, it had Verizon firmware on it. So with it I had to flash the Note 9 first to the U1 Unlocked firmware and then to the AT&T U firmware.
So with both the S9+ and Note 9, I can get VoLTE and WiFi Calling to work.
Now I just have to decide which one I want to keep, as the S9+ was $348 and the Note 9 was $390.
I like the S9+ since it's not as heavy and more comfortable to hold, and it seems like the (smaller 3500mAh) battery lasts longer (not sure why). But I like the features of the Note 9 (S Pen) since I had the Note 2/3/4/5 years ago and miss those features.
I have an unlocked S9 and am on AT&T Prepaid.
I am playing a video about Odin right now.
I based in the US and I am looking for a new phone, the lack of choice here is bad. Have you used this phone on Tmobile in the USA? Does this support Wifi Calling and Volte?
andysensible said:
I based in the US and I am looking for a new phone, the lack of choice here is bad. Have you used this phone on Tmobile in the USA? Does this support Wifi Calling and Volte?
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Click to collapse
I have the EU/NA variant (DN2103) and I'm using it on T-Mobile in the USA. There are no options for Wifi calling or Volte and I'm unable to use any dialer codes to activate them. However, I do have good LTE service and everything works as expected. There are a lot of people in other countries on the OnePlus forums complaining at VoLTE not being supported and supposedly it has to be enabled for various carries by OnePlus. I'm hoping the Android 12 update will enable Wifi Calling and VoLTE, as it IS reportedly working on certain carriers in other countries.
That's disappointing, I had a Chinese version of the OnePlus 7 (Red!) for a brief period. I was surprised wifi call was working with it.
andysensible said:
That's disappointing, I had a Chinese version of the OnePlus 7 (Red!) for a brief period. I was surprised wifi call was working with it.
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I'm suprised also. My OnePlus 6, 7 Pro and 7T all supported WIFI calling on T-Mobile, BUT they were all sold in the USA. The Nord 2 is not meant for USA consumption, so I have a feeling that's why it doesn't support wifi calling and VoLTE here.
Its still strange that i hadnthe chinese editon of the op7 had wifi calling working and the nord 2 doesnt, neither phone was for the US, maybe tmobile changed something
xphyle1971 said:
I have the EU/NA variant (DN2103) and I'm using it on T-Mobile in the USA. There are no options for Wifi calling or Volte and I'm unable to use any dialer codes to activate them. However, I do have good LTE service and everything works as expected. There are a lot of people in other countries on the OnePlus forums complaining at VoLTE not being supported and supposedly it has to be enabled for various carries by OnePlus. I'm hoping the Android 12 update will enable Wifi Calling and VoLTE, as it IS reportedly working on certain carriers in other countries.
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do you still experience the same? VoLTE is still not supported? What about 5G? Is it working fine on T-Mobile?
What data speed do you have?
Hi,
has anyone experience with this Phone in the US ?
I having a -Mobile (USA) card in it and have mostly no Cell service, and if a Cell service than only 2 G
Thanks for your feedback
looking at
Sony Xperia 1 IV - Full phone specifications
www.gsmarena.com
T-Mobile network
Learn about coverage and technologies of the T-Mobile network, including a 5G and 4G LTE Coverage map, device compatibility, and more.
www.t-mobile.com
Cheat sheet: which 4G LTE bands do AT&T, Verizon, T-Mobile and Sprint use in the USA?
What are the 4G LTE bands supported by AT&T in 2019? Do they differ from the 4G LTE bands that T-Mobile uses? And what about Verizon Wireless massive 4G LTE network and its supported frequency bands? And where is Sprint left in the 4G LTE picture? What Verizon bands are currently in use? What...
www.phonearena.com
most of the things should work
I did look on this specs first, after I got it seems like there is something additional. There is one spot I get a super connection but 90% of the time weak or no Service at all. I have tried many phones before but none of them even had such bad reception. And there supposed to be even the Tmobile 5G 71 Band. It looks to me someone sold a restricted fu.... Asia version without mentioning it
go to settings and all the way down you should see your model number. Considering that USA specific is not out yet you most likely have asian one which is XQ-CT72. EU one is CT54.
But those should work on t-mobile network, most of the bands are there. And those are low bands, so longer range.
It runs at limited feature support. Sony disables VoWIfi for US models and many other features including Bluetooth features such as Bluetooth meta data.
Sony blames T-Mobile for limited feature set. you will need to root your phone to hack up the build to enable VoWifi and other features.
This feud between Sony and T-Mobile has been going on for the past 10 years and Sony still playing ignorant to US market.
if you don't care about such limited feature set, Xperia 1 IV should still work on TMO
I just got my phone yesterday and realized the same thing happened to me, I didn't have service where I used to but I managed to get it working by: going to settings, then network and internet, then Sims, scroll down to access point names. And two options should pop up, I changed mine to T-mobile US LTE.. And restart, which worked for me.
hnt20 said:
It runs at limited feature support. Sony disables VoWIfi for US models and many other features including Bluetooth features such as Bluetooth meta data.
Sony blames T-Mobile for limited feature set. you will need to root your phone to hack up the build to enable VoWifi and other features.
This feud between Sony and T-Mobile has been going on for the past 10 years and Sony still playing ignorant to US market.
if you don't care about such limited feature set, Xperia 1 IV should still work on TMO
Click to expand...
Click to collapse
Are you saying the the imported version of the Xperia 1 iv does support VoWifi or neither one will on any USA carrier
kuau said:
Are you saying the the imported version of the Xperia 1 iv does support VoWifi or neither one will on any USA carrier
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that is correct, the issue is more related to Sony software rather than just the region. the only way to get VoWifi is to root your phone and disable sony software limitations
hnt20 said:
that is correct, the issue is more related to Sony software rather than just the region. the only way to get VoWifi is to root your phone and disable sony software limitations
Click to expand...
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Is there a guide for this? Not having wifi calling is the main thing holding me back from pre-ordering
Kylewolf said:
Is there a guide for this? Not having wifi calling is the main thing holding me back from pre-ordering
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Click to collapse
yeah this guide should work, its for the Xperia 1 III, I would think it would work for the IV, I just switched to goggleFI to get Wifi calling with out having to do anything.
Getting VoLTE and VoWiFi on unlisted carriers by flashing mbn file
I live in Canada and I have a BC72 (Asian version). I am struggling to get VoLTE and VoWiFi working. I know that mbn file is the key to getting IMS support and sony seems to block some carrier mbn files (only mbn in sales areas are available). So...
forum.xda-developers.com
I have been using the XQ-CT72 here in michigan on GoogleFi, which is basically t-mobile, in my town where I live, I get 5G without doing anything to the phone, but with that said, I work 20 miles out in rural area and apparently from my research tmobile use band 71 for 5G in rural areas, I can get LTE+ but no 5g at work, my Pixel 6 pro can get 5g but its like 1 to 2 bars that`s it, but with my sony I get full bars of better signal on LTE+ with my Sony, since the Sony is missing the n71 band for 5G, but I`m fine with what I get, since at work I` m on wifi anyways, I`m happy with my purchase, I originally had the US model on pre-order and the release date was pushed back to Sept. 22-23, so I cancelled my pre-order and bought a new one on ebay for 1069.00 compared to sony wanted 1599.00 for US mode
EDIT: I ended up send it back to seller, the 5g icon was not really 5g, if you're in the USA I would wait and buy the USA version, which I pre-ordered from Sony website, expected ship date is 22-23
moving to GoogleFI is the best option to use this phone in the USA. it will utilize Tmobile USA and have all feature enables.
Can anyone comment on Verizon compatibility with this device?
If really like to save some money and not buy the bootloader locked na version (if locked is still a thing)
Thanks
svntsvn said:
Can anyone comment on Verizon compatibility with this device?
If really like to save some money and not buy the bootloader locked na version (if locked is still a thing)
Thanks
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Only way to know for sure it to just buy it and try it for your usecases. Just buy it somewhere with a good return policy. I bought mine on Ebay with a 30-day return policy and so far it works fine on AT&T. Just make sure you do the trick where you disable dual-sim. (Google the details, it's somewhere here on XDA or on Reddit).
I bought my USA variant phone a week ago, and everything on T-Mobile works with the exception of Wi-Fi calling. The only alternative we have is to stop using T-Mobile and switch over to Google fi which does support Wi-Fi calling. Other than that my phone is flying super smooth and with fast performance like I've never believed compared to my old LG v30 Plus. I'm definitely impressed with this phone.
svntsvn said:
Can anyone comment on Verizon compatibility with this device?
If really like to save some money and not buy the bootloader locked na version (if locked is still a thing)
Thanks
Click to expand...
Click to collapse
I'm using mine (XQ-CT62) in the Verizon network. Reception is not the best in the area where I'm but it works with no problem
Is that a coverage thing most likely, or the device itself? Rural area?
svntsvn said:
Is that a coverage thing most likely, or the device itself? Rural area?
Click to expand...
Click to collapse
From a technical point of view, the phone should work on all carriers in the USA without issues, (with the exception of the Sony/T-Mobile Wi-Fi Calling issue that forces those who want Wi-Fi calling to switch to Google Fi, Mint Mobile, and other MVNOs).
Whatever service is in the area should work. Verizon will provision your phone to work with it's network. CDMA based carriers are supported per Sony's phone settings, so I would just go for it.
I'm traveling to the US soon, and i find out most companies like t-mobile verizo and at&t don't list the phone as compatible with their networks, and more over, when putting the IMEI on those websites, it just says not compatible.. any of you has any experience in the US with this specific phone? Global model ofc
I have it here in the US and I use t-mobile. I do not get good service and do not have VOLTE or VOWIFI. I did get missed calls time to time but it still worked.
The Realme GT2 PRO has compatibility issues with T-Mobile. I'm currently using mint mobile which is an mvno of T-Mobile and the service is pretty bad. In fact mint mobile says that the Realme GT2 pro is not compatible although it does work... barely. Unfortunately I had to buy Pixel 7 for use at work which is fine because it takes so long to charge that phone I end up using the GT2 pro at night for media and gaming. It's not a band issue as much as US carriers simply don't want to status the software.
Hopefully this will change soon. I haven't tried an att mvno but that's definitely on my to do list as the 5G and 4G band compatibility is better than T-Mobile.