yashsingh1/xdaforums huggingface dataset:
[Sony Xperia 1 V] bjamerican:
@UniquePhillip

I'm in the United States using T-Mobile, and I just received my XQ-DQ54 from Germany today. I have a few quick questions about your experience before I begin flashing:

1) Did you ever try to flash the complete US firmware onto your European device? If yes, was this unsuccessful? What was the result, exactly?

2) Based on your writeup, it looks like you ultimately just flashed the US modem files only and continued using the European firmware. Have you been able to confirm whether eSIM functionality still works after you flash the US modem files?

Thanks!
[Sony Xperia 1 V] UniquePhillip:
1) Yes, I tried and it did not work, I had to use xperia companion to restore. I don't remember exactly what the problem was.

2) I have a physical sim so I haven't tried. But I'm curious to hear your experience with this. I see the settings are available and I'm able to get to the screen where you scan a QR code but I'm not sure if it will work past that.
[Sony Xperia 1 V] bjamerican:
After HOURS of trying to get my phone into Flashmode, I was finally able to flash the US modem files onto my DQ54. This makes no sense to me, but troubleshooting revealed that only a USB-A type cable can be used to enter Flashmode. Several USB-C cables did not work.

- I am getting nearly 500 Mbps in my living room on T-Mobile's 5G NR SA network (per LTE Discovery and the *#*#4636#*#* menus)!

- VoLTE worked immediately after flashing.

- After running the Pixel IMS app, Wifi Calling is also working.

- I confirmed that eSIM is definitely still working after flashing the US modem files with the EU Customization version of the software. Both the physical SIM and the eSIM work simultaneously.

My connections so far have been on N41 and N2. Fingers crossed I'll eventually see N71, but I'm not holding my breath.
[Sony Xperia 1 V] UniquePhillip:
Did esim work?
[Sony Xperia 1 V] merc50:
I have flashed newest SEA firmware with US modem files onto the dq72 and it did not give me 5G until I toggled DSDS on/off in the 4636 menu for some reason. I chose US radio band and chose NR/LTE/GSM/WCDMA.

I am getting good speeds on band 41 5G(SA), which I never got on my US 1 iii on T-mobile. On the 1 iii had good speeds, just not band 41(SA). It was always NSA.

I have to check what I get on the US dq62 now.
[Sony Xperia 1 V] bjamerican:
eSIM is working! This is using European software with the US modem files.
[Sony Xperia 1 V] merc50:
Do you leave the bootloader unlocked after flashing roms/drivers? I assume that I'll have to keep flashing modem drivers every update, or flash the rom w/drivers.
[Sony Xperia 1 V] UniquePhillip:
Leave it unlocked if you are not using factory bootloader, or you will need to reset with Xperia companion

To update just flash the new EU firmware with US modem files. Newflasher will give you an option to save user data. Then flash a new patched init_boot if you want to stay rooted. You can create this before flashing the new firmware, so the only downside here is you need to wait for EU and US updates to be released
[Sony Xperia 1 V] merc50:
Thanks.

I'm on the DQ72, so far I only tried SEA firmware with US modem drivers. I haven't tried the EU or US firmware yet, but I will soon.
[Sony Xperia 1 V] ralf_waldo:
Hi @merc50 have you tried flashing modem files from Xperia 1 V to your older Xperia 1 iii and checked if it works to enable 5G bands?.
[Sony Xperia 1 V] merc50:
Sorry everyone, I'm new at this... Apparently I didn't flash the SEA firmware to the DQ72 when I thought I did!

Now I definitely flashed the newest SEA firmware with US modem files and it worked right off the bat, no need to toggle DSDS off/on.
[Sony Xperia 1 V] merc50:
No I havent' tried that, I could try that as soon. I do get 5G bands on the 1 iii, just not 5G SA bands. When you look at the 5G bands listed for the 1 iii, it doesn't list SA bands. I'm pretty sure that's hardware modem related?

On the 1 iii, I get band 71 (T-mobile in the US), but it doesn't say SA, only "5G LTE+ band 71". And it's at terrible speeds. Most of the time I'm seeing 5G(NSA) Band 2 and Band 66. This is in NY metro and LI.

On the DQ72 I'm getting 5G SA bands, but I haven't seen band 71 as it's not on the chip I'm assuming.
[Sony Xperia 1 V] bjamerican:
My DQ54 finally established a data session using LTE on B71 for the first time this weekend. I was inside a massive concrete parking garage and the signal was extremely weak. Data speeds were excruciatingly slow, but the phone did appear to successfully move data over B71!

So far I have not seen N71 yet when the phone is connected using 5G NR SA. It always tends to prefer N41 or N66. Perhaps it's just that T-Mobile hasn't deployed 5G on N71 in my city yet, and not a limitation of the DQ54 hardware.

One other observation... my 5G SA upload speeds are very slow any time I'm indoors. Like 2 Mbps or less. As soon as I step outdoors, the upload speeds increase to the 50-60 Mbps range. LTE upload speeds tend to perform better indoors than 5G SA. I'm hoping this isn't a limitation of using US modem files with European hardware.
[Sony Xperia 1 V] merc50:
It's interesting that you see B71 after you flashed the US modem drivers, because on the Sony.de website it doesn't list band 71 being on this phone, for 4G or 5G (NSA or SA).
[Sony Xperia 1 V] Nizzay!:
Does this root guide work with Xperia 5 V? Anyone tried it?
[Sony Xperia 1 V] D`car:
Flash US modem (optional)...

After this, OTA arrive, but cannot install.

To install OTA correctly, need to return the Japanese modem.

Does anyone have firmware xq-dq44 67.0.a.4.79b? It has already been removed from XperiFirm.
[Sony Xperia 1 V] bjamerican:
Tip regarding the Android 14 update...

The US firmware for Android 14 has not been released yet, but you can still use the US modem files from US_60.0.A.4.104 with the new EU-UK_67.1.A.2.112 firmware.

However, DO NOT copy the 60.0.A.4.104 modem files into the same directory as the 67.1.A.2.112 firmware and flash both at the same time with Newflasher. This will brick your device, and require you to use Xperia Companion to restore the phone and wipe your user data.

You must first flash the new firmware 67.1.A.2.112 in its original form, reboot the phone, and then flash only the US modem files from 60.0.A.4.104.
[Sony Xperia 1 V] Te3k:
Hello, I'm trying to verify the following (as per GSM Arena):

5G bands	1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 77, 78 SA/NSA/Sub6 - Europe
1, 2, 3, 5, 7, 8, 20, 25, 28, 30, 38, 40, 41, 66, 71, 77, 78 SA/NSA/Sub6 - USA
1, 3, 5, 7, 8, 28, 38, 40, 41, 77, 78, 79 SA/NSA/Sub6 - Asia

Telus (Canada) 5G/5G+ bands are: n71, n66, n78. The only phone that supports these bands is the USA version.

I was about to buy the US version, but as indicated in this thread, the bootloader is not currently unlockable.

Is it the case one can purchase the international version (DQ72) and flash the US modem in order to access those 5G bands? Or, is this a limitation in the modem chip itself (i.e. hardware-limited, not software/firmware-limited)?

Thank you very much for the clarification.
[Sony Xperia 1 V] eltoffer:
Hi, I've tried this guide (only the modem flashing part) in A14 but got some errors, and nothing is flashed, is anyone else getting errors in A14?

EDIT:

Well it was a driver/cable issue finally flashed the modem files
[Sony Xperia 1 V] leifkirchoff:
I can confirm the European version, flashed with the US radio works on all the US bands I would expect. I have tested everything thus far that is unique (2, 12, 41, 66, 71 etc). I can't see that it supports b14, but I think that is to be expected.

I wonder if, now that my phone is unlocked with European firmware and US modem files, if I can flash the whole of the US firmware to the phone...unclear...
[Sony Xperia 1 V] eltoffer:
how did you test the bands?
[Sony Xperia 1 V] leifkirchoff:
I use Network Signal Guru. This allows verification of bands in use as well as band locking.
[Sony Xperia 1 V] vgpclife:
I've gone through the steps and gotten my DQ54 working in the US with the US modem and also rooted.

I know once a device is rooted, OS and security updates stop working and I obviously wouldnt want an update to over write my modem files anyways so that brings me to my question.

How do we handle updates going forward for our DQ54s? Is it as simple as downloading the firmware via XperiFirm, over writing the modem files with the US modem and running the EXE? I'm used to updating ROMs via custom recoveries in the past but that doesnt look like how we'll have to do it with this 1v.

Would doing the above wipe, reset, or do anything to installed apps and user data? Thanks.
[Sony Xperia 1 V] Stormwing:
Another question for the pile - may I ask where people have sourced their DQ54s?

Was gonna get a DQ72 but am about to switch to T-Mobile...which seems to be connectivity suicide if it can't do band 71 (right?)
[Sony Xperia 1 V] kkjb:
Sony -72 with modem mods. Mine connects on B2 only in my immediate area. Still get 5g service...here's the but.... I NEVER get as fast as speeds my Pixel 8 pro does in same spots. I have never seen channel 71 on any of these: Pixel 7 pro & 8 pro, Xiaomi 13pro, Nothing 2, OnPlus 11, the Sony. Just my area I guess but it a band that isn't used in middle of nowhere WA.
[Sony Xperia 1 V] Lord Kitsuna:
I am having a similar problem, if I restart the phone and I'm in a single area I can get 600 Mbps no problem just like my other phones but as soon as I start traveling like on the freeway or something my phone will very quickly drop to the point that it's struggling to maintain 20 megabit per second and I have to restart if I want it to get faster.

I am starting to regret not just getting the US model it's not like we have lineage OS for this thing so I don't know what the unlock Bootloader is affording me.

I tried a fresh SIM card and I have had T-Mobile reset the network on their end to no avail. I guess I should see if I can get the original firmware back on the device do all the latest updates and see if it works better with the non-us firmware
[Sony Xperia 1 V] Blockgen:
Got a question about backups. I'm coming from a rooted OnePlus 5T, and before I made any updates to the phone, I would always make a backup with TWRP.

Is there something similar that I can do on on the Xperia 1V, any custom recoveries that are available for it, or make a full backup through my computer?

I am especially worried as I can't use the backup/restore feature on the XperiaCompanion as it is getting phased out.
[Sony Xperia 1 V] Mentalmuso:
This worked great thanks. 5g all day!
[Sony Xperia 1 V] Mentalmuso:
I'm pretty sure this is a fastboot driver issue. I gave up on my windows machine and used a Mac and it flashed straight away.
[Sony Xperia 1 V] Blockgen:
Also, how do I know why region my phone is in? I have a XQ-DQ72.

In *#*#7378423#*#* ->Service Menu -> Software info, it says "GLOBAL-C2 - user"

Which region is that?
[Sony Xperia 1 V] Blockgen:
I know it's been a while, but I ran into the same problem. I fixed it by downloading and using the latest adb/fastboot

SDK Platform Tools release notes | Android Studio | Android Developers

Android SDK Platform-Tools is a component for the Android SDK.

developer.android.com

You want to use the fastbootd method.
[Sony Xperia 1 V] Blockgen:
Two things, you want to make sure that you are using the latest adb/fastboot, and that you are in fastbootd not fastboot

As @Mentalmuso said, something might be wrong with the fastboot tool you are using, so make sure you get the latest one from here: https://developer.android.com/tools/releases/platform-tools

The second is fastboot vs fastbootd. You want to flash init_boot while your phone is in fastbootd.

Turn your phone off, and turn it on by holding power+volDown. Once your phone boots into recovery, go to Enter fastboot, you should see fastbootd at the top in red. Plug it in, and on your pc, run

to see if your device shows up. If it doesn't make sure to get the windows drivers working as indicated in the first post. Once your device shows up, you can go ahead and flash init_boot.
[Sony Xperia 1 V] bjamerican:
DO NOT do this... it will brick your phone and force you to reimage it with Xperia Companion (ask me how I found out). You will also need to wipe your user data in the process.

When new XQ-DQ54 firmware is released, flash it using newflasher as is... without modifying or overwriting any files contained in the image.

After the new XQ-DQ54 firmware has been flashed you can separately flash only the US modem files.

I have confirmed that the US modem files from the Android 13 firmware work with the Android 14 firmware for the XQ-DQ54. However I don't know if mixing firmware and modem versions will always work in future releases
[Sony Xperia 1 V] eltoffer:
Hi guys, appreciate any help

Since A14, my phone won't switch to 4.5G nor 5G bands/network, only 4g previously A14 the phones working great on both 4.5G/5G network I flashed the US firmware but still the same, I own the 72 variant and im from Mexico, any suggestion?

Checking the "override network type" (*#*#4636#*#*) it says NONE, never goes to LTA_CA so no 4.5G, the "NR available (NSA)" shows as "true" but no 5G connection.

any idea? thanks
[Sony Xperia 1 V] Mentalmuso:
I have the same device, updated to Android 14, flashed the USA modem files afterward, and consistently get 5g. Have you gone into the dialer code and set the default bands etc?

Sent from XQ-DQ72 using ReLabs
[Sony Xperia 1 V] Mentalmuso:
for anyone struggling with trying to get RCS working in the USA. I debloated the stock messaging app within the stock Sony rom and then installed the play store messaging app. works straight away now. Now I can see when my Mrs has read my messages.

Sent from XQ-DQ72 using ReLabs
[Sony Xperia 1 V] eltoffer:
hi thanks for reply

How do you do that? you mean 4636 code? is of, then what or what code exactly
[Sony Xperia 1 V] The64Core:
How long does it take to dump the trim? I haven't gotten passed that part using newflasher. I always receive this error. Or it just hangs on dumping the trim, idk how long it is suppose to take so I give it 15-20mins then just cancel it

View attachment 6044253

I am in the right mode since I have that little green star at the top left of the device (from holding volumedown while plugging in the cable). I am using the USB 2.0 port of my PC (tried both the front and back ports). I've also tried different cables and even bought a cheap usb 2.0 cable specifically for it. [newflasher.exe is the only thing in the folder that cmd is open to)

I've even tried uninstalling the driver that's listed as "SOMC Flash Device" in device manager for the 'sa0200adb.ini' in the xperia v drivers folder (changed it back now to the SMOC device) but still no luck.

Also tried both cmd and powershell. Starting as administrator and regular...

idk what else to do, some advice would be appreciated.

PS. From messing around I can get rid of that 'overlapping IO error' but then I get the timeout error instead...

EDIT: After much tribulation and hours on the internet I've come to the conclusion that it is most likely a problem with my device since it doesn't connect over USB at all. Can't even connect it in MTP mode to transfer files on a PC. Tried different PC's, OS's (not linux) and cables, and even tired resetting the device back to factory. My oneplus 7pro worked in all those variations.

This is my first sony phone so Idk if these USB connection issues are common. If anyone knows anything that can help I would appreciate the advice. But at this stage I'll most likely return the device and get a replacement
[Sony Xperia 1 V] Mentalmuso:
This may be a silly question but i have to ask, did you press the usb connection notification and select file transfer? it defaults to charging only. You probably did...
[Sony Xperia 1 V] Mentalmuso:
I flashed most of the usa imgs today, didnt have any issues, but essentially flashed back to 72 firmware. No real differences. Ive been trying to chase down some bluetooth aptx adaptive quirks.
[Sony Xperia 1 V] The64Core:
I appreciate any help so it's okay. I have indeed changed USB mode but without any change. Funnily enough using a USB-C to USB-C cable and connecting to my other phone then selecting USB storage from the sony makes it appear in file manager. But only the default files app(doesn't appear in solid file exploerer) and its very finicky. For example, minimizing the app or going home on my oneplus 7 pro then coming back makes the storage no longer show any files for the xperia and says 'the device may be locked and needs to be unlocked' (even though the screen is already unlocked).

It Could still potentially be the cables I am using (highly unlikely since everything, MTP usb, tethering, adb, fastboot all work with my oneplus 7pro with the same cables). Ill buy one or two more and if it still doesn't work ill just RMA the device
[Sony Xperia 1 V] Al Ferro:
I have the same phone model and I believe that is Hong Kong region, I went to xpericheck and checked all the firmwares for the other regions or countries.
[Sony Xperia 1 V] Flava0ne:
My device is a XQ-DQ72 and just to be clear, I do this with the XQ-DQ54 Customized EU-UK Firmware?
[Sony Xperia 1 V] drperry:
Will this also keep the 3G frequencies intact and functional?

I'm often out on the boonies, and in Canada, the 3G is all that works for calls, lol.

I'm looking at getting the 1 V to replace my S9+.

Does VoLTE work? Not a big deal if it doesn't.
[Sony Xperia 1 V] Shun_5377:
I'm considering buying Xperia 1 V and learning how to root this device. I got "init_boot_X-FLASH-ALL-25B1.sin" file from the firmware package and converted it to img format using sony_dump_tool. However, after patching the img file using Magisk, I got a file with 0 byte. Any idea? Thanks.
[Sony Xperia 1 V] UniquePhillip:
can you post magisk patch log?
[Sony Xperia 1 V] Shun_5377:
Here is the magisk patch log.

P.S. The init_boot file is about 8-9MB. Should I use the boot file instead?

Edit:

I've figured out the error. The init_boot file has now been successfully patched by Magisk after I disconnected my phone from the PC. :ROFLMAO:
[Sony Xperia 1 V] Velaar.Felps:
I'm in Canada. Rogers. Have 5G, VoLTE, VoWiFi with Pixel 4a MBNs. Working on getting band 71/66 for NR but so far no luck.

Anyone managed to actually enable additional bands on the 72? Looking at NV patching but didn't have time to test.
[Sony Xperia 1 V] yasinkhan1438:
how to patch modem of Sony Xperia 5 mark 2 AU is there anyone who can share guide
[Sony Xperia 1 V] LordKitsuna:
Does anyone know how to properly undo this without a factory reset? I did it a while back and I'm pretty far behind on updates because the OTAs don't work. So I'm still on build 67.0.A.4.51

I assume i just need to flash my original firmware? As in the proper region for my device same version as the us its now got, is that correct?
[Sony Xperia 1 V] Kevincorella:
How do you all get away with no fingerprint/pin pattern bug when unlocking bootloader, tried everything with no luck, any help?? even just tried the new 67.1.A.2.229
[Sony Xperia 1 V] Kevincorella:
Any luck with that?

I just tried the new SEA 67.1.A.2.229, same thing, I think im just gonna go Android 13 with the old version, no bug there
[Sony Xperia 1 V] drdieselal:
I guess you can just flash the newest software via newflasher choosing to keep the data when it asks. Updated myself today from 67.1.A.2.220 to 229 (first time doing that), worked like a charm. I don't think there should be any difference when updating from an older android version (not an expert here), but just in case you may consider backuping everything using TWRP (if you have your bootloader unlocked, flashing it does not wipe data). Keep in mind that you will need to reroot the device after updating via newflasher.
[Sony Xperia 1 V] rsabluebulls01:
any luck with this? is there a way to get the 72 to add eSim?
[Sony Xperia 1 V] roerisi:
I no longer own this model
[Sony Xperia 1 V] endolith:
Is this still true? Are there disadvantages to rooting it? I'm thinking of buying one, and US version has more cell bands.
[Sony Xperia 1 V] Te3k:
US version, it can't be rooted, apparently. I'm in the same boat. Some people have had success flashing the US modem on other models though, and receiving those bands in question. So, that's what I did: ordered the DQ72 (Asia variant), with intention of flashing the DQ62 (USA) modem only, and seeing if that gets the best of all worlds: unlockable bootloader (root), 512GB option, plus North American 5G band support (via usage of the USA DQ62 modem). I'm still awaiting delivery. Should be able to test in the next week or so....

2024-06-15: On stock DQ72 (Asia) modem, I can't seem to catch any 5G signal. 4G LTE working beautifully. I tried confirming with Network Signal Guru, but learned I need to root to let it see what's going on. So now I'm going down the unlock boatloader and root path. I'll see what NSG has to say on the DQ72 modem, and then proceed to flash the DQ62 (USA) modem to see what changes.
[Sony Xperia 1 V] endolith:
OK I will wait for your report. :D
[Sony Xperia 1 V] will0n:
I have followed this guide to root my DQ72 on HK firm 67.1.A.2.242. Everything works well except NFC: it stucked as disabled and no way to enable it. (can be enabled again with stock init_boot image flashed)

I have tried different magisk version from 27.0 back to 26.2 and nothing changed. Any conclusions?

--------------edit--------------

Never mind, I find that it's caused by the app NFC card emulator. NFC gets back after disabling the magisk module generated by this app
[Sony Xperia 1 V] endolith:
Is there any utility that tests every feature of a phone? I bought a used Xperia 1 V DQ54 and I want to fully test it before and after rooting/burning the US modem stuff, to see if anything stops working.

My current phone is a used Samsung S7, and it seemed fine at first but later I realized that the audio recording has random clicks in it, and the image stabilization hardware jumps around randomly during videos. Would never have thought to test those things within the return period.
[Sony Xperia 1 V] Cstrrider:
Hey I just followed these instructions on my DQ54. I do not see an option to Select Radio Bands in the 4636 menu, but I do have 5g now. Did they change this menu?
[Sony Xperia 1 V] wiggleforlife:
Have the same experience. Just got the phone and do not see the Select Radio Bands menu, but I see 5G and have managed to get NR-SA in Network Signal Guru. Haven't looked properly at bands yet, I've only used the phone inside the house so far.

edit: saw band 71!
[Sony Xperia 1 V] Ainz_Ooal_Gown:
hmmmm.....so i got this

Spoiler content hidden.

Edit: NVM i was trying to root with Boot partition not intboot
[Sony Xperia 1 V] kingjames007:
Is it safe to root for the DQ-72 version ? I live in Europe, so I don’t need to flash the US firmware, I just wanna unlock bootloader and have root. Do I need to enable some bands network? If yes, how?

I’m getting the phone in 5 days
[Sony Xperia 1 V] paul999:
DQ-72 is unlocked version, i think it has all the network bands? you can just pick what you want in the service menu. i am using it right now.
[Sony Xperia 1 V] kingjames007:
I don't know, I'll see because DQ-54 is for Europe, so I thought the DQ-72 have some kind of issues... Can you confirm root and unlocking bootloader works fine ?
[Sony Xperia 1 V] paul999:
yeah, root and unlocking bootloader without problems. using Android 14 latest stock rom, most bank apps works without detecting root.

here are the bands that is available.
[Sony Xperia 1 V] wiggleforlife:
Ok so everything was working perfectly on Google FI with the DQ54, but now I'm in Japan. Google Fi includes 5G in Japan with my plan, and it's worked before with my previous phone, a Galaxy. However, I'm not getting anything better than LTE+ on my Xperia in areas where my friend gets 5G (iPhone + VZW). I checked the 4636 menu and it turns out `NR state` is `RESTRICTED`, despite `NR available` being true. Changing my preferred network type to NR only in that menu leads to no service at all and `NR available` going to false. I'm unrooted with Shizuku and Pixel IMS. Any tips?