yashsingh1/xdaforums huggingface dataset:
[Sony Xperia 1 V] Hurt Copain:
Have not tried. I only have verified connectivity with and without changes to modem or efs for vzw and T-Mobile
[Sony Xperia 1 V] piskr:
Thank you. I guess, sooner or later, someone will try the connection with ATT and Verizon. Selling of the phone has just started in the US.
[Sony Xperia 1 V] maxamilliano:
Sorry if this is a noob question, but would this allow the DQ72 or DQ54 to work on Google Fi since is mainly uses t-mobile towers?
[Sony Xperia 1 V] Hurt Copain:
They work on fi already, I had TMobile service out of the box without modification. Just not 5G
[Sony Xperia 1 V] 2015Ducatimulti:
Yeah I have Googlefi, everything works even wificalling, I did flash the modem files and have 5g but even with the 5g icon on inside my house it's not worth crap either, like 6-10mbps download, but the lte.discovery app shows LTEB66,B12,B2, think it's just my area, there's a spot on the way to work, where there is tower and I can have speed of 360mb speed, just why don't manufacturers make the chip so everything band is available.
[Sony Xperia 1 V] foxlzl:
Does DQ72 supports ATT 5G band? I try the same steps and manage to see the 5g sign. However, got a message from ATT saying the device is not supported and the speed test result says the same.. sigh
[Sony Xperia 1 V] 2015Ducatimulti:
hey I meant to ask you do you have prepaid or post paid on T-mobile?
[Sony Xperia 1 V] hudalapulapu:
My Xperia 1 V XQ-DQ72 is in Bootloop.

The first my phone was suddenly Corrupt issue, can't boot, can't enter the menu. The display only shows the corrupt attentions.

After that I flash with Xperiafirm, but at the firstime the firmware was wrong. I tried with Japanese Version.

Flash process was successful but stuck in Sony Logo.

I tried flash again with true firmware, but still bootloop even I tried with another markets version.

I've entered recovery mode to reset phone or wipe data etc. But still bootloop.

PLEASE HELP ME 😥😥😥
[Sony Xperia 1 V] 2015Ducatimulti:
did you use the Xperia Companion from Sony?
[Sony Xperia 1 V] rmiles7721:
Have you tried botting into safe mode? I had the same issue. Lsposed was not playing nice with another module I installed.
[Sony Xperia 1 V] hudalapulapu:
Yes I did, but appears like this
[Sony Xperia 1 V] hudalapulapu:
I think can not enter safe mode during boot loop. For now I only can enter Fastboot Mode, Flash Mode, and Recovery Mode.
[Sony Xperia 1 V] zm1868179:
I saw that you have google Fi. I also have google Fi which model of the phone would you recommend for the service and I'm guessing Wifi Calling just works on fi? I know the Sony phones and T-Mobile have always had issues with wifi calling but google Fi has always just seemed to work.

After you flash the US Modem files do you happen to be able to use Data while on a phone call when on 5G/LTE? This seems to be an issue with the US Version of the Xperia 5 V phones data will not work while on a phone call
[Sony Xperia 1 V] 2015Ducatimulti:
I ended up sending back my Global Version DQ-72, since it still struggled to get good download speeds, since it didn`t have band 71 for Lte and 5g, if you want to root you will need the Dq-72 global version, the current Dq-62 can`t have the boot loader unlocked, hopefully the people that made the hack to change the TA partition on the USA Xperia 1 IV will also same thing for the Xperia 1 V, I ended up leaving GoogleFI they screwed me in where when I was doing testing between my s23 Ultra Esim, and the Xperia 1 V physical sim, and they locked my account for 4 days and I couldn`t do any activations, so I was in limbo with no service on either phones, I was about to go on vacation and needed service so I moved to T-Mobile, I just bought the Xperia 1 V DQ-62 USA from Sony.com and received it this last Saturday, but unfortunately with T-Mobile I have no WIFI calling, and it seems like T-mobile seems to still not allow the data to max out like my s23 or oneplus 11 5g, I still get higher speeds, on those 2 compared to the Xperia 1 IV, so I`m not sure T-mobile is crimpling the speed data of the xperia 1 V or not, but from what I found out some people have used Mint mobile and actually have wifi calling with mint mobile, so I ordered a Mint Sim and hopefully it should be here this week, then switch service and see what happens, I really need wifi calling where I work, its big steel building and there is no service in the building, but you should get the USA version if you don`t care about rooting, but if you want to root the phone, should get the global version.

edit: also I just tried data while on a phone call and it worked fine.
[Sony Xperia 1 V] Hurt Copain:
post paid...I bought the US model too and the speeds were 15-30 mbps faster indoors only. It was 200 mbps or so slower outdoors. that is with dq62. - had no reason to keep it in comparison to my dq72 which is my DD, it have far better speeds on custom with my own kernel and rom. I do have standalone 5g flags enabled in device tree and am using an aosp base with added carrier settings, so its fully supported. wifi calling and 5g volte.

sorry i don't use xda much. been busy building roms :/ BTW Evolution X is all running perfectly now for this, my roms have wifi calling and 5g volte.. I get amazing speeds by simply flashing the us modems with sea firmware as said before. I will release soon, have 2 minor bugs and then some more roms.

The rest of the Sony devs have knocked it out of the park previously, so I am excited for you all to see what the community has in store. Leak below of what i build, rom and kernel. and a pic of the XperiaParts module my buddies have been pouring their skills into. It adds in the stock functionalities. stay tuned to the xperialabs crew, for we shall bring the romssss.

bootloop guy, Japanese only works on Japanese models...

This phone is unbrickable even if you try.

if in a bootloop, unplug the device, hold vol up and power to force a reboot out of the loop, as the screen goes black, hold vol down and plug in, keep holding vol down till the green light comes on then you flash stock via newflasher v57..
[Sony Xperia 1 V] 2015Ducatimulti:
thanks for the info, I guess my other question with the custom rom and etc with the US modem firmware, and other tweaks you have done, did you actually get Band 71 enabled? I live in Michigan and where I live we have lot of Band 71 and I need the band 71 for my area. Thanks
[Sony Xperia 1 V] Hurt Copain:
I'm just south of you in Cleveland. No, I have not gotten band 71 enabled. Seems to be 41 for the majority. Heading to grand rapids in a couple weeks so we will see if anything changes
[Sony Xperia 1 V] 2015Ducatimulti:
Ahhh I c, yeah I live in coldwater MI, we lot of Band 71, band 66 and 12, and I have seen N38 too, but mostly it`s 71, still debating holding on my xperia 1 V and wait if see root comes out in 5-6 months like what happen to the USA version of the Xperia 1 IV.
[Sony Xperia 1 V] myironlung:
TL;DR: I may have band 71 (N71) working on the EU version of the Sony Xperia 1 V (XQ-DQ54)

Long time XDA lurker (a decade plus). I have always found it a valuable resource, but I never had anything add. I think I might finally have something worth breaking my silence. This is the kind of information I would hope for others to post.

I've been following this thread since the start. I have wanted a Sony Xperia 1 for a few years and this finally seemed to be the year. I really wanted band 71 to work because I am in a relatively rural area in the north east of the US. I was on AT&T but switched to T-Mobile because I didn't want issues with AT&T and their whitelisting of phones.

When I saw that it seemed like band 71 didn't work with this trick I was disappointed, gave up hope and bought the US version. I had the phone for about a week but couldn't stand how restricted I felt going to a non-rooted phone. Also, 5G where in my location wasn't really any faster than what I had on my old 4G phone. I sent the phone back and ordered an EU version (XQ-DQ54) from Amazon Germany. I deemed being able to root as being more important than having band 71 for me.

When I received the phone I followed this guide (using US modems on the latest EU firmware) to get 5G on the bands I had. I was very happy to see the 5G icon appearing at the end of all the steps. I decided to see what band I was on with LTE Discovery. To my surprise band 71 showed up! Am I just misinterpreting this? I'm not very knowledgable about how all the bands and frequencies work so I could be wrong. I confirmed the same band on several other apps.

The signal isn't great where I am. I'm about 1.5-2 km and on the other side of a big hill from the nearest tower. But I still have signal indoors and enough speed to download whatever I want.

I compared to a Samsung S22 with a different T-Mobile sim. The speeds were the same. In the nearby small town the speeds on the Xperia 1 V were actually slightly faster.

I haven't had the chance to test this out in a more built up area so I'm not sure how it would compare in a city, but for my situation right now it seems good. I don't care about having crazy speeds. In the cases I do I would be on WiFi anyway.

I have installed Pixel IMS and have WiFi calling working on T-Mobile too. I've rooted and am able to tinker with settings as I like.

If this is all true, I think I might have finally found the perfect phone! I'm hoping I'm not wrong. Thank you to @Hurt Copain and all others for your work on this!

@Hurt Copain, will I need to do this each time there is an update? i.e. Will the modems be overwritten with the EU one? Also, do you think this will this work if I switch to an eSim for T-Mobile?
[Sony Xperia 1 V] myironlung:
I've done some more testing. When I make a call I can still use data, however it drops to LTE/LTE+. Speeds drop too. Is this expected? I do have VoNR enabled in PixelIMS. Maybe VoNR isn't yet available in my area.

EDIT: Checking the LTE Discovery app while making a call shows it switching to B71 (LTE), rather than N71 (5G).
[Sony Xperia 1 V] myironlung:
By the way, I don't know if it matters but I'm on prepaid T-Mobile (US). I can try someone else's postpaid SIM later. If 5G doesn't work on that I will report back.
[Sony Xperia 1 V] rom4ster:
Ok I am confused someone tell me, is band 71 support?
[Sony Xperia 1 V] kkjb:
In my area, middle of Washington State. Finding a known Band 71 here is unlikely. I've not seen it in Pixel 6, 6a, 7 pro. Or now Sony with this threads modems mod. That's not to say it can't, I just can't test. Here is typical reception bands for my local.
[Sony Xperia 1 V] Hurt Copain:
Yea I'm not seeing 71 and I'm in an area that is like right inside the area. And for updates, after downloading the firmware remove the 3 modem files, replace with whatever US firmware has..every time
[Sony Xperia 1 V] Hurt Copain:
Guys stop in, setting up a chat to further our convos and play with some roms

{Mod edit: Link to Telegram removed. Oswald Boelcke, Senior Moderator}
[Sony Xperia 1 V] asdf2345:
Has anyone done Verizon/Tracfone testing with the DQ72 or DQ52?
[Sony Xperia 1 V] myironlung:
I drove around some rural areas near me this morning for 45 or so minutes. I tested the connection with a Samsung Galaxy S22 at the same time as my EU 1 V. The S22 is T-Mobile postpaid, my 1V has T-Mobile prepaid. I went from areas of 5G to no signal at all. One thing I noticed is that the 1V had signal more often than the S22 in areas where it was very poor. That is, often the 1V still had a very weak connection when the S22 had none at all.

With the LTE Discovery app I watched what bands I was connected to as I travelled around. According to the app I had bands 2, 4, 12, 66 and 71 at different points in my journey, both LTE and 5G. N71 seems to be most consistent specifically in the area near my house, within 200m or so. I did however briefly connect to it in a few other areas. I tried to do a few speed tests as I drove around. The max speed I got was around 210-220Mbps as I passed near a major interstate highway. I've seen 15-20ish in my house on the weak N71 signal I get, not great, but does fine.
[Sony Xperia 1 V] asdf2345:
So the EU 1 V has band 71? What exactly did you do to get T-Mobile and band 71 working?
[Sony Xperia 1 V] myironlung:
I really don't know for sure. I'm no expert on this. I was hoping someone else who knew more about how these bands work could confirm. According to several apps I've tried it is N71. I have also seen B71 appearing from time to time. Could it be that the reason others don't see band 71 is because there are better signals available at the same time? If there is a more definitive way to know for sure, please let me know.

I think all I did was copy in and overwrite the modems in the EU firmware folder with the US ones as described in the guide, and flashed. Other than that, I rooted, did pixel IMS etc. I also think I switched DSDS off and on, which I was afraid of doing because I say elsewhere that some people had to do a full wipe/reinstall to get that working again. Although, maybe having the EU e-SIM version makes the difference in all of this?

EDIT: Regarding the DSDS setting, I think this is what I did:

https://www.reddit.com/r/SonyXperia/comments/15faocc/_/jucjtlm
Honestly, I was just trying out a bunch of different things I read online and somehow (possibly) stumbled on the solution without knowing exactly how I did it.
[Sony Xperia 1 V] Hurt Copain:
Could be since dq54 does have esim it has other active bands as you can see on these results my speeds are good..indoor at my house is the slowest but hit 64 mbps with dsds turned off, with it on I have 20 ish... everywhere outside of my house on band 44, 77, and I forget the other is 300-900. 1200 in the big cities here. On the dq62 I had higher speeds inside my house but half the speeds everywhere else and did have band 71 but in the same places had half or less the speeds. So it depends on if the areas have it. Cleveland and Columbus Ohio have it. Didn't do much for me compared to my current setup. If you have joined my chat please let me know who you are and we can continue this chat. Maybe you can pull some files off your phone via qpst.. that was how I enabled 5g before the US model arrived.i see references to bands being omitted or restricted, even denied within efs tools. My theory initially as I did on 1v and 5v was to copy everything non-specific device or model over and write it and see if I can identify if this other model has the restricted bands references too
[Sony Xperia 1 V] 2015Ducatimulti:
thats about what I have in my area for celluar bands, I`m curious where did you buy the DQ54 Version? I ended up sending back my DQ64 USA model and bought DQ74 silver model so I could have root, still wish I had the B71, N71 from the DQ64, but hopefully someday the DQ64 will get rooted, then we can some how pull the modem files and activate the 71 band on the modem.

edit: from looking on Ebay there is seller that has the DQ54 unlock and non branded version for sale and states in the description it has band 71, but from everything I found online about the DQ54 says it shouldn`t have the band 71, so it`s hard to tell, but if you have the DQ54 and shows a working 71 band, that would be great to have root and have the Band 71, but for extra 500.00 from what paid for my DQ72, I deal with the slower speeds for now without the band 71
[Sony Xperia 1 V] myironlung:
German Amazon, shipped to the US. I checked UK Amazon too, but it was much more expensive there.

https://www.amazon.de/Sony-Xperia-Exmor-Sensor-Inches/dp/B0C598K8LB
[Sony Xperia 1 V] 2015Ducatimulti:
great thanks for the link, your rooted too with the DQ54?
[Sony Xperia 1 V] myironlung:
I don't have Telegram set up yet, but might when I get some time to set up all my apps in the next few days.

Could you post the instructions up here about what to do with qpst, and what we're looking for exactly, please? It's better to have it here for visibility for if others come looking for answers to this at a later date.

Yes. And WiFi calling etc. working with Pixel IMS on T-Mobile.
[Sony Xperia 1 V] asdf2345:
What does the Pixel IMS do? I'm curious why the app is needed, and how it makes VOLTE just work.
[Sony Xperia 1 V] myironlung:
It's a way to enable VoLTE and VoWifi without root. I probably could have done it with root now that I think of it, but I had done it this way when I had the US phone, so I repeated the same process.

pixel-volte-patch/README.en.md at main · kyujin-cho/pixel-volte-patch

Pixel IMS: Rootless replacement for Tensor Pixel VoLTE patch - kyujin-cho/pixel-volte-patch

github.com
[Sony Xperia 1 V] asdf2345:
Hmm, how does VOLTE work in the original region without being enabled in build.prop? What is it about being in a different region that breaks it?
[Sony Xperia 1 V] myironlung:
I'm not sure. Maybe VoLTE was already working. I just did it for VoWifi.
[Sony Xperia 1 V] asdf2345:
I'm curious how the device fares for AT&T and Verizon now, if those would work with the VOLTE enabler. I do see some posts mentioning them, but I would like to see a plain confirmation.
[Sony Xperia 1 V] 2015Ducatimulti:
yeah funny thing I flashed the 3 files from the DQ54 just to test it and It keeps the 5G icon, and I went back to the DQ72 modem files and I still have the 5g icon and everything seems to still be working, just as the the US modem files, so I`m not sure, I have since went back to Googfi which still uses the Tmobile towers, on the way home from work today I actually connected to N41 band and actually had 509 mb download and 33.6 upload speeds, and that was with the US modem files flashed, I had the DQ54 files flashed and went back out where I had originally connected to the N41 and it wouldn`t connect, so I`m do little more testing and see, I figured maybe chance with the DQ54 firmware, but nothing, if I get enough money around I`m might just buy the DQ54 to have the band 71.
[Sony Xperia 1 V] relxone:
I plan to buy a Japanese version of 1 V, because the Japanese version has 16GRAM, but its 5G network support is not complete, so I want to know whether it can be updated to the European version or the global version.
[Sony Xperia 1 V] Hurt Copain:
The Japanese model has no compatibility to the other variants' modems
[Sony Xperia 1 V] relxone:
OK, thanks. It seems that I have to wait for other versions.
[Sony Xperia 1 V] Hurt Copain:
Use GSM carriers. ATT doesn't have but low end 5g bandwidth, hence they spoof signal. 4g is 5g wink wink. VZW can't hang with the gsm devices, as it is cdma. I confirmed with my dq72 i had coverage with vzw, but it was super slow. Tmobile is best for this device in the US.

Also, ducati guy and others, change the 4636 options to NR/LTE...in some large cities i change to NR only, and ALWAYS set radio to United States.

QPST stuff is super advanced and wip. The shortcut is flashing the 3 US modems. dq54 modems do not work on dq72 unless modfications have been made. The last 3.5 months I have tested most of if not every scenario. Ask in tg chat if you wondering. I don't hang here much, site is hard to use, app is unusable on mobile.
[Sony Xperia 1 V] Hurt Copain:
closing thread as this is a circular discussion not going anywhere productive.
[Sony Xperia 1 V] asdf2345:
I would if someone didn't ban me for asking questions
[Sony Xperia 1 V] Hurt Copain:
tone is a wonderful thing. How one asks questions can play a key role in life.
[Sony Xperia 1 V] Oswald Boelcke:
Thread closed on request of OP @Hurt Copain

Additionally, I've removed a link to Telegram from your above post. Regarding social media links please observe that as an exemption from the last bullet of rule no. 5 of the XDA Forum Rules, we grant only developers the privilege to share references to their social media in their own development threads and if thorough support is provided in the thread. These conditions obviously don't apply to this thread. Additional information is also available here:

Telegram Chat Channels - Way Forward

WhatsApp/Telegram Groups and Channels - Going Forward Hello XDA family! Just notifying all members that posting certain links to Telegram and other sites like WhatsApp is now allowed on XDA. What does that mean? We will allow links to messages...

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Senior Moderator
[Realme GT Neo 2] ryanso999:
i tried factory reset, format data, but it still not work.

Right now im trying to trasnfer the img to my phone via usb cable, but it cant copy the img into my phone...

What else can i do?
[Realme GT Neo 2] Prashant87:
You can connect USB otg with the ROM zip and install it from TWRP
[Samsung Galaxy S23 Ultra] MrDusan:
I'm listening to the track and I'm not able to reproduce the issue. Can you give a timestamp of when this happens?

Does this happen while listening to regular music on different apps also? Spotify?

Do you have any other types of audio adjustment apps on your device? Like equalizer apps, maybe the sound assistant from good lock?

I know that PowerAMP has it's own audio profiles and equalizer, but that should not affect other apps like youtube.

Do you have any enabled sound enhancing settings in accessibility menu, like hearing aids and similar settings?
[Samsung Galaxy S23 Ultra] PresidentMAD:
Hello,

thank you for your reply.

I am using

poweramp for mp3's

and Youtube App for Videos/ music

it happens on both apps

i use no other apps for any media playback

the YouTube app settings are all default

i never even touched YouTube settings if there are any.

the settings for poweramp regarding audio output are all at their default values. the audio section in poweramp settings is completely at default values.

the equalizer of poweramp is untouched, everything is default.

i used the "restore default values" option of the equalizer and audio output settings, just to make sure that it is indeed default.

i have no other apps that might interfere.

the headphones i am currently using are

Sennheiser momentum true wireless 3

i hab them freshly reset, and it's companion app is also default.

i have the following settings in android set:

settings -> sounds and volume -> sound quality -> Dolby atmos and dolby atmos for gaming -> both enabled

Digital wellbeing - volume monitor -> enabled

settings -> accessibility -> hearing enhancements -> everything is off (hearing aid support / amplify ambient sound / adapt sound -> all of them are off)

on the rain over innsmouth track it happens on the following timestamps both for the poweramp mp3 and in YouTube:

0:08 lasts until 0:12 (reduced volume)

it happens every time on that timestamp

for example this Youtube Video with Youtube app

it happens on

23:30 lasts until 23:33 ( 3 seconds almost the moment the guy starts screaming)

i am in Europe

could this be due to some weird obscure law of the EU for electronics manufacturers to obey?

the EU has all sorts of laws to ahhhhm "protect it citizens"

maybe Samsung implemented something like that for European devices, and the US and Asia devices do not have that "feature"

i remember a sony device i had long time ago, every 24 hours the volume would revert to 60% if it was above that, with a notification message "to protect your hearing the volume had been adjusted" something like that.

you could turn it back up after that, and it reverted after 24 hours again.

unfortunately nobody i know has a s23, to try that with their device.

thank you very much for looking into this.