Question Sony Xperia 1 iv compatible with T-Mobile USA ?

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ReinSauter

New member
Dec 3, 2020
4
1
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
 
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kinggo2

Senior Member
Dec 2, 2018
84
17
looking at
most of the things should work
 

ReinSauter

New member
Dec 3, 2020
4
1
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
 

kinggo2

Senior Member
Dec 2, 2018
84
17
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.

 

hnt20

Senior Member
Nov 20, 2010
190
47
San Diego
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
 
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Lmcurse

New member
Jul 30, 2022
1
0
California, USA
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.
 

kuau

Senior Member
Jul 24, 2010
81
4
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
Are you saying the the imported version of the Xperia 1 iv does support VoWifi or neither one will on any USA carrier
 

hnt20

Senior Member
Nov 20, 2010
190
47
San Diego
Are you saying the the imported version of the Xperia 1 iv does support VoWifi or neither one will on any USA carrier

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
 

2015Ducatimulti

Senior Member
May 3, 2010
1,010
253
coldwater,mi
Is there a guide for this? Not having wifi calling is the main thing holding me back from pre-ordering
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.

 

2015Ducatimulti

Senior Member
May 3, 2010
1,010
253
coldwater,mi
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
 
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hnt20

Senior Member
Nov 20, 2010
190
47
San Diego
moving to GoogleFI is the best option to use this phone in the USA. it will utilize Tmobile USA and have all feature enables.
 

Sakete

Senior Member
Sep 23, 2009
328
149
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
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).
 

igotroot

Senior Member
Dec 4, 2010
1,276
160
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.
 

StranGee

New member
Apr 29, 2021
1
0
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
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
 

igotroot

Senior Member
Dec 4, 2010
1,276
160
Is that a coverage thing most likely, or the device itself? Rural area?
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.
 

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  • 1
    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
    1
    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
    1
    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
    1
    Is that a coverage thing most likely, or the device itself? Rural area?
    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.