Sony Xperia XZ3 flashed to Customized DACHBLX misses option "VoLTE" - Sony Xperia XZ3 Questions & Answers

Yesterday I flashed a used Sony Xperia XZ3 (H9436) from CID 1316-4789 (Customized NOBA) to CID 1316-6961 (Customized DACHBLX) to get VoLTE and VoWiFi selectable.
Because I had seen some error messages in the Newflasher log, I contacted the maintainer Munjeni (see my posting https://forum.xda-developers.com/posts/85701601/), he was able to confirm that the flashing itself was completed without errors.
Unfortunately, I did not quite reach my goal, VoWiFi is now functional, but I still miss the option to select VoLTE.
My SIM card (O2/Telefónica Germany) allows VoLTE in another smartphone, so in my opinion it can only be a firmware issue, am I right?
I would be grateful for a targeted solution suggestion.

Yes

SonyFlasher2021 said:
so in my opinion it can only be a firmware issue, am I right?
yes it is
Click to expand...
Click to collapse

SonyFlasher2021 said:
Yesterday I flashed a used Sony Xperia XZ3 (H9436) from CID 1316-4789 (Customized NOBA) to CID 1316-6961 (Customized DACHBLX) to get VoLTE and VoWiFi selectable.
Because I had seen some error messages in the Newflasher log, I contacted the maintainer Munjeni (see my posting https://forum.xda-developers.com/posts/85701601/), he was able to confirm that the flashing itself was completed without errors.
Unfortunately, I did not quite reach my goal, VoWiFi is now functional, but I still miss the option to select VoLTE.
My SIM card (O2/Telefónica Germany) allows VoLTE in another smartphone, so in my opinion it can only be a firmware issue, am I right?
I would be grateful for a targeted solution suggestion.
Click to expand...
Click to collapse
Sorry to bump an old thread, but have you fixed the issue? I did a full system restore on my xz3 and still haven't gotten VoLTE to work on mine

Sorry for the late reply. No, my efforts to add VoLTE to the Sony Xperia XZ3 (H9436) are paused. I am also waiting for a good tip for a working solution. In the meantime, I'll limit myself to VoWiFi and/or use VoLTE on my second mobile phone, the Sony Xperia XA2 Ultra (H3213).

Related

xperia Z official debrand

Hi all,
Check this out:
http://www.xperiablog.net/2013/04/01/debrand-your-xperia-z-tutorial/
I found is to be a nice tutorial.
nikkon said:
Hi all,
Check this out:
http://www.xperiablog.net/2013/04/01/debrand-your-xperia-z-tutorial/
I found is to be a nice tutorial.
Click to expand...
Click to collapse
OOOPS Nevermind.
2) Download the firmware
Download one of the following:
[C6603] Generic Nordic 10.1.A.1.434
[C6603] Generic UK 10.1.A.1.350
If you can source a different FTF for your region, you can use that instead of the above files. However, the above files will work on any Xperia Z (C6603) handset and provide numerous language options.
Click to expand...
Click to collapse
shadowboy23 said:
OOOPS Nevermind.
Click to expand...
Click to collapse
Hi, although I'm not new to Android I am new to any sort of flashing.
Dedranding me xperia z and getting rid of all of Threes bloatware definitely interests me but I have a couple of questions. Once the debranding has been done will all future updates then come from Sony or will they still come from Three? And would that then mean the phone would have to be re-debranded after any updates?
Would I need to unlock my phone from the network?
Also, I assume other than the bloatware all the other features and apps all remain unchanged?
Thanks
minty075 said:
Hi, although I'm not new to Android I am new to any sort of flashing.
Dedranding me xperia z and getting rid of all of Threes bloatware definitely interests me but I have a couple of questions. Once the debranding has been done will all future updates then come from Sony or will they still come from Three? And would that then mean the phone would have to be re-debranded after any updates?
Would I need to unlock my phone from the network?
Also, I assume other than the bloatware all the other features and apps all remain unchanged?
Thanks
Click to expand...
Click to collapse
Updates will come from Sony, you will get the generic updates at the same time as all sim free users.
Unlocking your phone is different to the branding. You can put any stock rom on your phone, so any networks version or any generic version, but your phone will still be SIM locked to your network until you pay for it to be unlocked.
wyterabitt said:
Updates will come from Sony, you will get the generic updates at the same time as all sim free users.
Unlocking your phone is different to the branding. You can put any stock rom on your phone, so any networks version or any generic version, but your phone will still be SIM locked to your network until you pay for it to be unlocked.
Click to expand...
Click to collapse
Thanks for the reply

[Q] Can't disable data roaming on Xperia T fw 9.1.A.1.140

I can't disable the data roaming with H3G (in Italy) and Xperia T. I've disabled the data roaming but, after a while, if I go to the options menu, it is enabled again, without any action of mine. The firmware is the 9.1.A.1.140.
Any help?
Thanks
psychok9 said:
I can't disable the data roaming with H3G (in Italy) and Xperia T. I've disabled the data roaming but, after a while, if I go to the options menu, it is enabled again, without any action of mine. The firmware is the 9.1.A.1.140.
Any help?
Thanks
Click to expand...
Click to collapse
Try to reset the phone and wipe all data. But be sure to make a backup first
Did it work?
I just had it too, and restarting the phone solved it
St.Jimmy90 said:
Did it work?
I just had it too, and restarting the phone solved it
Click to expand...
Click to collapse
I don't know, I will try it, when I can. I can't delete anything atm
Sony Companion don't seems help to backup, what tool do you recommend?
psychok9 said:
I don't know, I will try it, when I can. I can't delete anything atm
Sony Companion don't seems help to backup, what tool do you recommend?
Click to expand...
Click to collapse
If you have a sd card use the backup tool that's installed on the phone, this works just fine. Rebooting the phone didn't work?
It is a bit late but i'm replying just to say that I have the same problem. I always had this problem with this phone e no reboot ever solved it. My phone keeps getting roaming over EDGE.
scavener said:
It is a bit late but i'm replying just to say that I have the same problem. I always had this problem with this phone e no reboot ever solved it. My phone keeps getting roaming over EDGE.
Click to expand...
Click to collapse
Not, it's not working. And the problem is still there with android 4.3 and 4.4.4.
I have an xperia z and I have the same problem. Sony does not have any intrest in this. There is a big discussion in talk.sonymobile but sony says that it's all good and it's my fault.
so now I'm looking for a lawyer to get refound from sony.
Even if roaming is disabled when shifting from 3g (h3g) to gms (tim roaming) data tranfer is always on.
Any idea?
thanks
Luca
truman1981 said:
Not, it's not working. And the problem is still there with android 4.3 and 4.4.4.
I have an xperia z and I have the same problem. Sony does not have any intrest in this. There is a big discussion in talk.sonymobile but sony says that it's all good and it's my fault.
so now I'm looking for a lawyer to get refound from sony.
Even if roaming is disabled when shifting from 3g (h3g) to gms (tim roaming) data tranfer is always on.
Any idea?
thanks
Luca
Click to expand...
Click to collapse
I'm using H3G Italy too and I never had this kind of problem with both android versions (4.1.2 and 4.3)
Have you ever resetted your phone?
istux said:
I'm using H3G Italy too and I never had this kind of problem with both android versions (4.1.2 and 4.3)
Have you ever resetted your phone?
Click to expand...
Click to collapse
of course I have...and I've tried every possible solution, but not custom rom, I don't want to...
the problem is well known on the web and by typing "h3g roaming data issue xperia" you can find it.
truman1981 said:
of course I have...and I've tried every possible solution, but not custom rom, I don't want to...
the problem i well known on the web and by typing "h3g roaming data issue xperia" you can find it.
Click to expand...
Click to collapse
Try another stock firmware (for example from another country)... do you know Flashtool?
istux said:
Try another stock firmware (for example from another country)... do you know Flashtool?
Click to expand...
Click to collapse
of course!
and I tried UK, central europe and CH
once it worked with CH 4.3 because they have the two options: national and international roaming.
but now it does not work anymore.
a solution was to add a comment line to system/build.prop
ro.roaming.extended=true
ro.roaming.extended_rule=1
not possible anymore because cannot root 4.4.4
---------- Post added at 01:58 PM ---------- Previous post was at 01:51 PM ----------
once root will be possibile on 4.4.4 I'll change custom n° again to generic italian and I will add
ro.roaming.extended=true
ro.roaming.extended_rule=1
for now the only solution is (when in italy because international roaming is ok) to force 3g connection only with no gsm
:crying:
truman1981 said:
of course!
and I tried UK, central europe and CH
once it worked with CH 4.3 because they have the two options: national and international roaming.
but now it does not work anymore.
a solution was to add a comment line to system/build.prop
ro.roaming.extended=true
ro.roaming.extended_rule=1
not possible anymore because cannot root 4.4.4
---------- Post added at 01:58 PM ---------- Previous post was at 01:51 PM ----------
once root will be possibile on 4.4.4 I'll change custom n° again to generic italian and I will add
ro.roaming.extended=true
ro.roaming.extended_rule=1
for now the only solution is (when in italy because international roaming is ok) to force 3g connection only with no gsm
:crying:
Click to expand...
Click to collapse
I see you already did everything has to be done in this case.
I have an idea about your sim card, but I write to you via PM

[Q] Help to work reliance jio VOLTE on XZ1 COMPACT

i recently ordered xz1 c from taiwan, got today i am from india and using jio as my primary number, any one help me to work jio volte on this phone, there is option to enable volte on mobile network settings but volte is not working, reliance jio works on band 3,5 and 40 and is a 4g ony network doesn't have 2g/3g.i heard on us firmware t mobile volte is working but fingerprint is not, I am not caring about fingerprint scanner, if i flash the us version volte work ? which firmware part has network based settings? here in india xz1 dual has jio volte working, as there is no big differences between xz1 and xz1 c, if i flash specific firmware part from xz1 dual to my xz1 c does jio volte work? but the main thing is i dont know which firmware part i have to flash, any one please guide me solve this be helpful
VOLTE is enabled here in the UK, so pretty sure a UK build will work for you.
You will need ADB drivers for the phone and beware if you've used your laptop/workstation for another model of phone as sometime this can interfere.
Start with Xperiafirm and download the most recent firmware build, which as I type is UK customised. Sticking to customised build avoids all the bloatware that goes with branded builds.
Download newflasher and unpack it into the same folder as the firmware.
Delete userdataXXX.sin (this preserves the data partition during the flash)
Turn off phone, plug it in, start newflasher, type 'n' to the first two questions.
This should get you the latest build phone with your data intact
problem solved
flashed xperia xz1 dual indian firmwares oem sin file with xperia xz1 compact, now volte working with reliance jio
jinishpv said:
flashed xperia xz1 dual indian firmwares oem sin file with xperia xz1 compact, now volte working with reliance jio
Click to expand...
Click to collapse
Thanks to you I have also solved with the volte, I in Italy with operator Tim the xz1 compact does not exist the button to enable the volte because it is not Tim brand instead the xz1 brand Tim exists and theTim allows the call volte, and I flashed OEM .sin brand Tim of the xz1 in the xz1 compact now works perfectly.:good:
jinishpv said:
flashed xperia xz1 dual indian firmwares oem sin file with xperia xz1 compact, now volte working with reliance jio
Click to expand...
Click to collapse
Hey,
Can you please let me know the process? I have ordered xz1c from US. I suppose it won't be having fingerprint working.
As others mentioned, UK firmware will give fingerprint but along with that I'd like to use Jio's VoLTE.
Please let me know the process. Also, may I know after doing that, will I miss on OTA updates?
Download Taiwanese firmware for xz1c and download Indian xz1 firmware, take OEM.sin from Indian xz1 firmware and replac oem. Sin in xz1c Taiwanese firmware and flash the modified Taiwanese xz1c firmware
jinishpv said:
Download Taiwanese firmware for xz1c and download Indian xz1 firmware, take OEM.sin from Indian xz1 firmware and replac oem. Sin in xz1c Taiwanese firmware and flash the modified Taiwanese xz1c firmware
Click to expand...
Click to collapse
Thanks a lot..
1 more quick question..
After doing that,will I miss on OTA updates? Also why Taiwanese firmware? Any difference between Taiwanese and UK firmware?
I'm literally new to this flashing thing.. Can you please let me know the process of doing this? Or if you can refer me some link/thread of any guide for this.
Thank you so much.
jinishpv said:
Download Taiwanese firmware for xz1c and download Indian xz1 firmware, take OEM.sin from Indian xz1 firmware and replac oem. Sin in xz1c Taiwanese firmware and flash the modified Taiwanese xz1c firmware
Click to expand...
Click to collapse
Hey did the same method work for you on Android Pie 9.0? I tried oem sin from indian xz1 dual with customized thailand firmware. VoLTE switch is available in settings but VoLTE icon doesn't appear in the status bar and calls don't work
The same thing happened with me but I somehow got it to work
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jinishpv said:
flashed xperia xz1 dual indian firmwares oem sin file with xperia xz1 compact, now volte working with reliance jio
Click to expand...
Click to collapse
Did you flash just one sin file?
Was your bootloader locked?
Did you root your xz1c after?
Pl help to work Jio VOLTE on XZ 2 Compact
Hello,
I bought XZ 2 Compact from UAE but it dosnt support VOLTE from JIO. Signal displayed is LTE+ but cant make calls or receive calls. Even got the sms from Jio to update internet settings. I checked your earlier email on XZ1 Compact. Hows its working on it long term and is it getting regularly updated to a new firmware OTA.
Thanks..
saurabhmittal said:
Hello, I bought XZ 2 Compact from UAE
Click to expand...
Click to collapse
Have you thought of posting your question on the XZ2 Compact thread?
That said there's no reason why you couldn't flash a version of firmware that supports VoLTE. yourself.
Xperiafirm will get you the up to date firmware, I would go for CE1 customised
Put Newflasher in the same folder as the downloaded firmware, remove Userdataxxx.sin and files ending in .ta to keep your data partition intact. Start Newflasher.exe and follow instructions.
You might need the Sony ADB drivers
Didgesteve said:
Have you thought of posting your question on the XZ2 Compact thread?
That said there's no reason why you couldn't flash a version of firmware that supports VoLTE. yourself.
Xperiafirm will get you the up to date firmware, I would go for CE1 customised
Put Newflasher in the same folder as the downloaded firmware, remove Userdataxxx.sin and files ending in .ta to keep your data partition intact. Start Newflasher.exe and follow instructions.
You might need the Sony ADB drivers
Click to expand...
Click to collapse
Many thanks for your kind message and wish you a very happy new year.
I didn't posted it on XZ2 Compact thread, sorry for that. Actually I am novice and haven't flashed a mobile before. Moreover I am not able to find userdataxxx.sin and .ta files and honestly don't know where to look for them. Kindly please help. Thanks.
jinishpv said:
flashed xperia xz1 dual indian firmwares oem sin file with xperia xz1 compact, now volte working with reliance jio
Click to expand...
Click to collapse
Thanks a lot. I first flashed xz2 dual indian firmware oem sin file with malasian 47.2.A.4.41 That soft bricked my device. Then I flashed xz1 dual indian firmware oem sin file with the same, now volte is working with reliance jio.
I used three FW-versions from XperiFirm and none of them enabled the VoLTE-setting on my XZ1c. Which one should I use to obtain the setting?
Is there a way to use Reliance Jio VoLTE on lineageOS 19.0, or 18.1 for that matter? I know flashing carrier MBN files works the trick for LG devices. Has anybody figured it out for xperias from 2017 or later? If it is available for any other xperia, I am happy to test it on lilac G8441.
jinishpv said:
problem solved
flashed xperia xz1 dual indian firmwares oem sin file with xperia xz1 compact, now volte working with reliance jio
Click to expand...
Click to collapse
Bro, I am thinking about xz1 compact . Its docomo unit and I think it is from .It is available in all over in second hand phone market in india.they say I can use any sin other than jio cause of volte. Does your flashing requires rooting?,cause i wanna use banking apps.

Asian H8296 updates in Europe

I use the Asian H8296 in Germany with a German provider.
On XperiCheck.Com I see that the firmware update A4 is only for customized hw and tk.
Not for customized DE like the H8266.
Does that mean that I won't get any updates, until I flash a H8266 firmware or use a Hongkong Sim card?
I only see the A4 firmware (8296) for CN on xpericheck. But to answer your question, no you don't need to flash another firmware.
Your phone will get the update whenever it is released for your firmware region, it doesn't matter where in the world you use it. So if your 8296 is on TW firmware, you will get it when Sony releases that one. If you were on CN firmware, your phone would have the A4 update available already.
ryotaru said:
I only see the A4 firmware (8296) for CN on xpericheck. But to answer your question, no you don't need to flash another firmware.
Your phone will get the update whenever it is released for your firmware region, it doesn't matter where in the world you use it. So if your 8296 is on TW firmware, you will get it when Sony releases that one. If you were on CN firmware, your phone would have the A4 update available already.
Click to expand...
Click to collapse
I had the Honkong Version.
But I flashed now the German H8266 Version via XPeriFIrm and NewFlasher V13.
It deleted my entire phone (not the sdcard), but it was a good decision to get faster updates.
I got A4 and the entire 6GB ram are shown.
The complete OS is German and working perfectly.
Thanks for the info. Hmm, I might do the same then. I had the TW version (had to send it back because the speaker was defective), but the 8266 seems to get updates faster. My only concern was the ram. Does it ever show more than 4GB being used?
Is that the info you need?
PS
Don't install the cn china firmware.
It has no Google apps, but apps with Chinese names.
Nice, it looks good. Thanks! :highfive:
Haha, I had flashed the CN on the one I had too! I reflashed right away when I didn't see any Google apps. :laugh:
Can I flash other region fw without unlocking the bootloader?
DimonDroid said:
Can I flash other region fw without unlocking the bootloader?
Click to expand...
Click to collapse
Yes
My Bootloader is locked, my DRM Keys are fine and my Camera is working.
MartinX3 said:
My Bootloader is locked, my DRM Keys are fine and my Camera is working.
Click to expand...
Click to collapse
Hi Martin, can you also tell us if, after flashing h8266 firmware, your VoLTE and WiFi Calling are working fine in your area? I am also from EU, and I would like to know this if possible.
Thanks for your feedback!
mightyvenom said:
Hi Martin, can you also tell us if, after flashing h8266 firmware, your VoLTE and WiFi Calling are working fine in your area? I am also from EU, and I would like to know this if possible.
Thanks for your feedback!
Click to expand...
Click to collapse
Since using the German Firmware, I can use VoLTE and Wifi Calling.
Getting a HD Symbol while calling and still having Internet while only in LTE.
The Asian Firmware didn't got the option to activate it.
My provider is O2 (Telefónica).
My screenshot.
MartinX3 said:
My screenshot.
Click to expand...
Click to collapse
MartinX3 said:
Since using the German Firmware, I can use VoLTE and Wifi Calling.
Getting a HD Symbol while calling and still having Internet while only in LTE.
The Asian Firmware didn't got the option to activate it.
My provider is O2 (Telefónica).
Click to expand...
Click to collapse
Thank you for this Martin! I wonder if I need to install Central European or Germany region firmware in order to have fully working VoLTE and WiFi Calling in my country (Romania). Also, I am curious if you actually see the benefits of the extra 2GB of Ram?
Cheers!
mightyvenom said:
Thank you for this Martin! I wonder if I need to install Central European or Germany region firmware in order to have fully working VoLTE and WiFi Calling in my country (Romania). Also, I am curious if you actually see the benefits of the extra 2GB of Ram?
Cheers!
Click to expand...
Click to collapse
I don't know if the Romania firmware is optimized for your mobile network.
My average ram usage is 3.6GB
I assume, that it will consume more ram if you play a 3D game.
I also assume, that future android versions will consume more ram, so my phone is future proof.
I will use it or several years.
MartinX3 said:
I had the Honkong Version.
But I flashed now the German H8266 Version via XPeriFIrm and NewFlasher V13.
It deleted my entire phone (not the sdcard), but it was a good decision to get faster updates.
I got A4 and the entire 6GB ram are shown.
The complete OS is German and working perfectly.
Click to expand...
Click to collapse
Hi, Martin. I also want to flash my Hongkong version as German H8266,
but I cannot find Oreo version yet, I can only find Pie version for German H8266 from Xperiafirm.
I have flashed this version, but it is stalled at accessing google service because I am in mainland China
Thus, I tried the French Oreo version because I found that at Xpericheck.com
For the Oreo, I can get into the system, but OTA to Pie is failed at the end of Stage 1 installation.
Do you know the reason, or could you share me the flashing image for German H8266 Oreo which can get OTA correctly?
Thank you very much.
bfdream said:
Hi, Martin. I also want to flash my Hongkong version as German H8266,
but I cannot find Oreo version yet, I can only find Pie version for German H8266 from Xperiafirm.
I have flashed this version, but it is stalled at accessing google service because I am in mainland China
Thus, I tried the French Oreo version because I found that at Xpericheck.com
For the Oreo, I can get into the system, but OTA to Pie is failed at the end of Stage 1 installation.
Do you know the reason, or could you share me the flashing image for German H8266 Oreo which can get OTA correctly?
Thank you very much.
Click to expand...
Click to collapse
You could flash the PIE version directly.
I don't know why the french firmware would refuse OTA.
Maybe it's your great firewall in china?
Only restricted google services are allowed in your country.
MartinX3 said:
You could flash the PIE version directly.
I don't know why the french firmware would refuse OTA.
Maybe it's your great firewall in china?
Only restricted google services are allowed in your country.
Click to expand...
Click to collapse
Thanks. In fact, I have flashed German Pie already, but the phone is stopped at first boot, because I cannot access Google directly. Even I choose skip, it still prompts that it cannot login into Google services. Thus, I have no idea, then I find French version still have Oreo firmware.
bfdream said:
Thanks. In fact, I have flashed German Pie already, but the phone is stopped at first boot, because I cannot access Google directly. Even I choose skip, it still prompts that it cannot login into Google services. Thus, I have no idea, then I find French version still have Oreo firmware.
Click to expand...
Click to collapse
https://en.wikipedia.org/wiki/Google_China#Blockage_of_Google
The dictatorship of china blocked it.
You would need a VPN in your Wifi device (router?).
MartinX3 said:
https://en.wikipedia.org/wiki/Google_China#Blockage_of_Google
The dictatorship of china blocked it.
You would need a VPN in your Wifi device (router?).
Click to expand...
Click to collapse
Yes, I know the wall in China. My router cannot set a VPN,
in Oreo, if Google service cannot be accessed for a while, it can be skipped for next step.
Thus, I want to find a Oreo version to flash and OTA to Pie.
bfdream said:
Yes, I know the wall in China. My router cannot set a VPN,
in Oreo, if Google service cannot be accessed for a while, it can be skipped for next step.
Thus, I want to find a Oreo version to flash and OTA to Pie.
Click to expand...
Click to collapse
Couldn't you try the first setup without SIMcard and wifi?

VoLTE, VoWIFI, 5G - carrier settings by Sony

Hi all,
Support of Sony doesn't have any idea, how it works....:
I bought a EU-device and use it in Switzerland. Unfortunately, they didn't integrate the Swiss carrier settings. Due to this, I don't have VoLTE, VoWifi (Wifi calling) and 5G.
I contacted Sony by phone and they told me that the device seems to have defect, that's why it doesn't work. So I wrote an e-mail to Sony support and they answered that the hardware is only capable to have these functions for the countries it is build for. My reply was that this is an EU-Version, so the hardware isn't the problem, they just need to add the carrier settings and if they know, when they will add them. Answer of the support: No, it is the hardware.
It is really frustrating with Sony. They have build such a nice device, but with this support, they shoulnd't be suprised about falling sales.
I was thinking of open the bootloader with Magisk and try to add the settings by myself. But first, I have never done this and I am not sure yet, what I have to do exaclty (step by step). Second, I loose the guarantee. And third, I am not sure if banking apps still work afterwards.
I really love this device, but I am a little frustrated about Sony.
If you have an idea, how I can solve this problem, you would make me happy
Flash firmware with Volte support, that's all.
Envoyé de mon XQ-AT51 en utilisant Tapatalk
I tried this already (several different localizations), bitit didnt help. The problem is, that Swiss providers didn't integrate their settings into Googles carrier services, but into another database for manufacturers. Unfortunately, Sony didn't do that on the Xperia 1 ii (even if they did it on past Xperias).
But I am most frustrated, that their customer care blame it on the hardware, but it's a software problem. Even after explaining, they don't wanna check it with a specialist. So trumping something, which isn't true.
Maybe you should contact your provider. Unlocking bootloader won't help.
Envoyé de mon XQ-AT51 en utilisant Tapatalk
According to Swisscom, everything is ready and the system is waiting for the device to register in IMS. But as the mobil doesn't have the carrier datas, it probably can't do it.
So I am back at the point, where the mobile needs the settings implemented for Swisscom...
We need to wait for flash firmware with Volte support, that's all.
For now FlashTool is not supporting our device.
Later just flash US frimware you will loose double sim but you will get VoLTE and WiFi calling. I did that on Xperia 1. It was easy and satisfy choice
I have an XQ-AT51 and also tried the UK-version, which support VoLTE/VoWifi. But as mentioned, the carrier settings of Swiss providers are missing.
I really don't know if it can help, but, have you already tried this way? here
The mentioned switch in this post is greyed out on my phone and my phone is also not IMS-registered (even my provider is offering it - I have also a second SIM for the same number with an Xperia 10 Plus with VoLTE and VoWifi). So I am pretty sure, it is only about integrating providers/carriers settings. But as Sonys customer care doesn't care about it (only this sentence shows that something is wrong there) and they don't want to check it internally with an xpert on VoLTE/VoWifi, it is frustrating.
Hey PlatinCH, any news? Did you manage to get VoLTE/VoWifi working?
That's the only thing holding me back from buying it
Yes it is quite confusing for sony, i used to flash xz premium and xperia 1 with SEA firmware on my HK device and both able to use VOLTE and VOWIFI in Thailand. So i just wait for SEA firmware to release for Xperia 1 II and i flash it over to my Xperia 1 II (HK) last night. This is quite problem the volte button is there but not work, as well noticed that IMS is not registered although it trigger on but greyed out. I think pproblem is with Sony.
Anyhow i recommend to use New Flasher now as it support Xperia 1 II, and i am contributor to the dev since Xz Premium day so the dev is very updated and quick respond and it is simple and easy to use.
Question for the OP. Have a checked the modem config files to see if your carrier is listed in there? Also have you checked to see what modem config file your phone is currently using? Just type in *#*#service#*#* and go to service info, then choose software info. Your modem config will be listed at the bottom.
Quite sure it's listed there,
This phone will always select ROW Commercial config.
Don't know if this a bug or a feature from Sony
has anyone found a solutuion for wifi calling?
tanipat said:
Yes it is quite confusing for sony, i used to flash xz premium and xperia 1 with SEA firmware on my HK device and both able to use VOLTE and VOWIFI in Thailand. So i just wait for SEA firmware to release for Xperia 1 II and i flash it over to my Xperia 1 II (HK) last night. This is quite problem the volte button is there but not work, as well noticed that IMS is not registered although it trigger on but greyed out. I think pproblem is with Sony.
Anyhow i recommend to use New Flasher now as it support Xperia 1 II, and i am contributor to the dev since Xz Premium day so the dev is very updated and quick respond and it is simple and easy to use.
Click to expand...
Click to collapse
Hello,
Can you help me? Im using xperia 1 au set convert to customised uk... But volte still didn't work... Try flash customized jp oem still dont work... I wonder if i flashed the wrong oem file... Cam you give the customized jp oem? And how to flashing with the correct way
kuya90 said:
Hello,
Can you help me? Im using xperia 1 au set convert to customised uk... But volte still didn't work... Try flash customized jp oem still dont work... I wonder if i flashed the wrong oem file... Cam you give the customized jp oem? And how to flashing with the correct way
Click to expand...
Click to collapse
normally you just need to flash your country. if you live in uk then flash uk. it used to always work previously, but in xperia 1 iii to make cross flash it wont be always work and you will lose ability to OTA. but if not cross flash and your model is the same model number in your country volte and 5g will work, still OTA is not working anyhow you need to flash update manually everytime
tanipat said:
normally you just need to flash your country. if you live in uk then flash uk. it used to always work previously, but in xperia 1 iii to make cross flash it wont be always work and you will lose ability to OTA. but if not cross flash and your model is the same model number in your country volte and 5g will work, still OTA is not working anyhow you need to flash update manually everytime
Click to expand...
Click to collapse
i dont know which rom in my country used..i just saw a video how to convert to global rom.
done flashing customized uk, and trying to get volte work,after flashing customized jp oem,still volte on my device didnt work.since in my country 3g not working anymore volte very needed..
kuya90 said:
i dont know which rom in my country used..i just saw a video how to convert to global rom.
done flashing customized uk, and trying to get volte work,after flashing customized jp oem,still volte on my device didnt work.since in my country 3g not working anymore volte very needed..
Click to expand...
Click to collapse
my device xperia 1 au set single sim version converted to global customized uk
kuya90 said:
i dont know which rom in my country used..i just saw a video how to convert to global rom.
done flashing customized uk, and trying to get volte work,after flashing customized jp oem,still volte on my device didnt work.since in my country 3g not working anymore volte very needed..
Click to expand...
Click to collapse
If you are flashing the firmware for.your region and volte doesn't work then you won't have much luck flashing different region firmware. However if you want try flashing SEA firmware if it's only compatible with your model
Hazzay88 said:
If you are flashing the firmware for.your region and volte doesn't work then you won't have much luck flashing different region firmware. However if you want try flashing SEA firmware if it's only compatible with your model
Click to expand...
Click to collapse
So, flash using newflasher J8110 customised UK TO J9110 customised SEA?

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