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How to Enable VoLTE

Hi guys. Just now received the XZP and I'm very excited about it. I want to know whether this mobile support volte. If it supports, then how can I enable it? There is not any options to enable it. I brought this mobile in dubai and I am using it in india. Here a network named jio supports volte. So could you please help me guys? How to enable it?

Dual sim or single sim?
It supports VoLTE in various regions and providers.
With single sim version i do not see Indian providers in modem configuration list and no Indian region firmware.
If you have dual sim model, then maybe you have luck with flashing Indian firmware https://xpericheck.com/cda/1308-6241 (i hope my assumption is correct that Customised IN refers to India)
I have not digged into dual sim firmware yet, so cannot guarantee it for you.
Please use search in XZ and other sony forums to know how flashing sony firmwares works. Too long and complicated to write it out here.
Also, ask from JIO if they plan adding support for XZ Premium. This will indicate if you would get VoLTE with Indian region firmware.

VeixES said:
Dual sim or single sim?
It supports VoLTE in various regions and providers.
With single sim version i do not see Indian providers in modem configuration list and no Indian region firmware.
If you have dual sim model, then maybe you have luck with flashing Indian firmware https://xpericheck.com/cda/1308-6241 (i hope my assumption is correct that Customised IN refers to India)
I have not digged into dual sim firmware yet, so cannot guarantee it for you.
Please use search in XZ and other sony forums to know how flashing sony firmwares works. Too long and complicated to write it out here.
Also, ask from JIO if they plan adding support for XZ Premium. This will indicate if you would get VoLTE with Indian region firmware.
Click to expand...
Click to collapse
Yes I am using the dual sim version. Is there no other way I can enable it without flashing the firmware? Or should I wait for the next OTA update?

Flashing the correct region firmware is the simplest solution.
Also currently there is no other known method.
If you have UAE region firmware then OTA update will not enable VoLTE for other regions.
I have now checked the firmware that i previously shared. There is special modem configurations in DS for Indian providers...
amss_fsg_maple_dsds_airtel_in_ims_tar.mbn
amss_fsg_maple_dsds_reliance_com_in_ims_tar.mbn
amss_fsg_maple_dsds_reliance_jio_in_ims_tar.mbn
Also the oem bit will tell phone which configuration to load.
So i think you would be good to get VoLTE if you flash https://xpericheck.com/cda/1308-6241

VOLTE patch

Could anyone of developers make a volte patch for xa as it is a core feature of nougat and Helio p10 also has it
But Sony doesn't want to give this feature in India Xperia xa f3116 deliberately
In nougat it's not working when I try *#*#4636#*#* setting
Volte provisioned switch could not be turned on and it were off by default
In UK it is on by default and it is supporting volte
So can anyone build a volte patch for xa???
Or
Could anyone have a solution to turn on the volte provisioned flag on in India xa
Thanks for every one who guiding me

altmash mirza said:
Could anyone of developers make a volte patch for xa as it is a core feature of nougat and Helio p10 also has it
But Sony doesn't want to give this feature in India Xperia xa f3116 deliberately
In nougat it's not working when I try *#*#4636#*#* setting
Volte provisioned switch could not be turned on and it were off by default
In UK it is on by default and it is supporting volte
So can anyone build a volte patch for xa???
Or
Could anyone have a solution to turn on the volte provisioned flag on in India xa
Thanks for every one who guiding me
Click to expand...
Click to collapse
Your right about the UK and volte if your network supports it which mine does had a text message from them the other week to say that 4g super voice(what my network call volte) is now available for the xa F3111
Sent from my Xperia XA using XDA Labs

aidy.lucas said:
Your right about the UK and volte if your network supports it which mine does had a text message from them the other week to say that 4g super voice(what my network call volte) is now available for the xa F3111
Click to expand...
Click to collapse
So you got that after one week of update
Was your sim inserted in xa since you updated the xa??

altmash mirza said:
Could anyone of developers make a volte patch for xa as it is a core feature of nougat and Helio p10 also has it
But Sony doesn't want to give this feature in India Xperia xa f3116 deliberately
In nougat it's not working when I try *#*#4636#*#* setting
Volte provisioned switch could not be turned on and it were off by default
In UK it is on by default and it is supporting volte
So can anyone build a volte patch for xa???
Or
Could anyone have a solution to turn on the volte provisioned flag on in India xa
Thanks for every one who guiding me
Click to expand...
Click to collapse
Did you update the "New update of 9.8mb"
don't know what changed they have made in this patch, may be this patch include VoLte features.
i'm unable to update, since i have unlocked the bootloader.

sumitha shankar said:
Did you update the "New update of 9.8mb"
don't know what changed they have made in this patch, may be this patch include VoLte features.
i'm unable to update, since i have unlocked the bootloader.
Click to expand...
Click to collapse
No I don't updated to it I will check it after my bhabhi comes home as I had gifted xa to my bhabhi
Wait for 3 to 6 hours for my answer on that:angel:

altmash mirza said:
No I don't updated to it I will check it after my bhabhi comes home as I had gifted xa to my bhabhi
Wait for 3 to 6 hours for my answer on that:angel:
Click to expand...
Click to collapse
sure thing!!:fingers-crossed:

Noppe that 9.8mb update had nothing to do with Volte. I checked everything can't seem to figure out what it was about maybe just some fix or something but no Volte yet ?

sumitha shankar said:
sure thing!!:fingers-crossed:
Click to expand...
Click to collapse
Yes it is not volte patch
But I think you should update to it
May be it has some fixes that are really necessary to our xa
Cause Sony is not so generous that it will give an update with extra feature in very short time from its latest update
I have listened about call log is lagging after nougat update
Not sure every one has this problem or not
But may be that 9.8 MB update relates to that problem or any other else
I suggest you to update when you have a free useless boring time to time pass with that update

I have a XA1 Dual Sim, but the situation may be same.
if you go to *#*#7378423#*#* > Service info > Software info under Current Modem Config if you have Vodafone LTE On, it has the default config, but if you have Jio LTE On, then the config changes to a Jio Specific Config, one of the reasons why my phone restarts when i change the settings between Vodafone and Jio, it needs to reload the Modem config file.
Now I believe Sony has VoLTE specific config for each of the Operator and the software is looking for some settings in the SIM to enable VoLTE Provisioning.
If anyone has root and can browse the content for the system folders /system/etc/customisations/modem/ , and could check if there are different config files for each of the Operator, take a screen shot, or may be one common config for VoLTE if all SIM support VoLTE.
Pics attached

Changing firmware

HI I'M using Sony Xperia xz premium which is brought from Saudi.. I want to change firmware to India. There is a problem volte in my mobile. I'm not seeing volte support. Could someone please help me in changing firmware to India.

sagard23 said:
HI I'M using Sony Xperia xz premium which is brought from Saudi.. I want to change firmware to India. There is a problem volte in my mobile. I'm not seeing volte support. Could someone please help me in changing firmware to India.
Click to expand...
Click to collapse
could someone help me on this. I tried my best ways I couldn't get

Try this post
https://forum.xda-developers.com/showpost.php?p=72958788&postcount=16

Sure thank you

sagard23 said:
could someone help me on this. I tried my best ways I couldn't get
Click to expand...
Click to collapse
VoLTE is provider specific. This means that a special firmware has that support built in... Are you saying that you're a Saudi user and with original FW it worked? Why do you need to change regional software?

I'm India user but got this mobile from Saudi.. Changing firmware to India will get volte support.. In other Xperia xz premium users I see volte support which are running Indian firmware.

Any one know which region support VoLTE for xa dual

I was searching on web how to enable VoLTE in f3116 xa dual
But I can't find the right solution anywhere,
Even in sony official page they mentioned as VoLTe is available for xa dual devices, but it was restricted for several region any one know for which country they have given access to use.
Please mention the specific region and firmware, so I can give a try to my device.
Thanks.

sumitha shankar said:
I was searching on web how to enable VoLTE in f3116 xa dual
But I can't find the right solution anywhere,
Even in sony official page they mentioned as VoLTe is available for xa dual devices, but it was restricted for several region any one know for which country they have given access to use.
Please mention the specific region and firmware, so I can give a try to my device.
Thanks.
Click to expand...
Click to collapse
My device is f3111 single sim on "3 UK" and the VoLTE appears to be enabled via the OEM partition.
If it exists on your ROM try add these lines to oem/system-properties/config.prop
Code:
persist.mtk_volte_support=1
persist.mtk_ims_support=1
persist.mtk.volte.enable=1
If this does not exist on your ROM try adding it to system/build.prop instead. :fingers-crossed:

Any one tried this??

bigrammy said:
My device is f3111 single sim on "3 UK" and the VoLTE appears to be enabled via the OEM partition.
If it exists on your ROM try add these lines to oem/system-properties/config.prop
Code:
persist.mtk_volte_support=1
persist.mtk_ims_support=1
persist.mtk.volte.enable=1
If this does not exist on your ROM try adding it to system/build.prop instead. :fingers-crossed:
Click to expand...
Click to collapse
Thanks for your guide man.
I didn't find these code in my config.prop.
Could you please tell where to create one, bcz i cannot find system/build.prop path in my directory.
This is what I can see in my config.prop directory
######################## Customized property values #########################
ro.nfc.icon.enable=true
ro.nfc.se.sim.enable=true
ro.telephony.default_network=0
ro.cst.prm=1302-4387:R3B
#############################################################################

sumitha shankar said:
Thanks for your guide man.
I didn't find these code in my config.prop.
Could you please tell where to create one, bcz i cannot find system/build.prop path in my directory.
This is what I can see in my config.prop directory
######################## Customized property values #########################
ro.nfc.icon.enable=true
ro.nfc.se.sim.enable=true
ro.telephony.default_network=0
ro.cst.prm=1302-4387:R3B
#############################################################################
Click to expand...
Click to collapse
Just add them to yours config.prop like this.
Code:
######################## Customized property values #########################
persist.mtk_volte_support=1
persist.mtk_ims_support=1
persist.mtk.volte.enable=1
ro.nfc.icon.enable=true
ro.nfc.se.sim.enable=true
ro.telephony.default_network=0
ro.cst.prm=1302-4387:R3B
#####################################################################
My ro.telephony.default_network=9 not 0 but I am in the UK so don't know if your region would work with that.
Experiment and see what happens.

bigrammy said:
Just add them to yours config.prop like this.
Code:
######################## Customized property values #########################
persist.mtk_volte_support=1
persist.mtk_ims_support=1
persist.mtk.volte.enable=1
ro.nfc.icon.enable=true
ro.nfc.se.sim.enable=true
ro.telephony.default_network=0
ro.cst.prm=1302-4387:R3B
#####################################################################
My ro.telephony.default_network=9 not 0 but I am in the UK so don't know if your region would work with that.
Experiment and see what happens.
Click to expand...
Click to collapse
Nothing happens. I couldn't see any changes?

sumitha shankar said:
Nothing happens. I couldn't see any changes
Click to expand...
Click to collapse
What do you expect to see
1. Open your phone dialer and dial
Code:
*#*#4636#*#*
2. Choose Phone Information
3. Scroll down and find VoLTE provisioned and Slide the button to turn it on if not already.
4. Check your carrier setting and set Preferred Network accordingly.
5. Back out and reboot the phone.
Your Carrier must support Volte for it to work obviously :silly:

bigrammy said:
What do you expect to see
1. Open your phone dialer and dial
Code:
*#*#4636#*#*
2. Choose Phone Information
3. Scroll down and find VoLTE provisioned and Slide the button to turn it on if not already.
4. Check your carrier setting and set Preferred Network accordingly.
5. Back out and reboot the phone.
Your Carrier must support Volte for it to work obviously :silly:
Click to expand...
Click to collapse
Wow brilliant thanks for your support man it really works.:victory:
But my carrier provider doesn't showing up VoLTE in notification.
Please see attachment I'm using jio in india and it does support VoLTE

sumitha shankar said:
But my carrier provider doesn't showing up VoLTE in notification.
Click to expand...
Click to collapse
I am not sure about your carrier but what you have already "LTE" rather than 4G is what I would expect to see.
Simply make a voice call and see if it switches from LTE to gsm or H if it does not then VoLTE is working.
Make sure your in a area where VoLTE is available and try to confirm if it works.
I am pretty sure it will.
EDIT:
I just noticed you can confirm it's working by going to Phone Information as before and checking the "Voice Network Type:" it should say LTE as in this screenshot

XA and Ultra are not supported by Jio: https://www.jio.com/en-in/faq/servi...-true-4g-volte-enabled-devices-in-market.html

bigrammy said:
I am not sure about your carrier but what you have already "LTE" rather than 4G is what I would expect to see.
Simply make a voice call and see if it switches from LTE to gsm or H if it does not then VoLTE is working.
Make sure your in a area where VoLTE is available and try to confirm if it works.
I am pretty sure it will.
EDIT:
I just noticed you can confirm it's working by going to Phone Information as before and checking the "Voice Network Type:" it should say LTE as in this screenshot
Click to expand...
Click to collapse
Yes the information is intact . As @rrvuhpg mentioned jio VoLTE is not supported by xa, because sony has restricted VoLTE services for indian users as u seen in the screenshot previously my VoLTE provisioned was set to disabled by default and after i followed the guide given by you i can see the VoLTE provision is in enabled status now i can see USE VOLTE WHEN AVAILABLE option in network settings , which was disabled earlier.
Now every this looks fine but I cannot see the VoLTE flag in the status bar since jio support only VoLTE i cannot make a call.

sumitha shankar said:
Yes the information is intact . As @rrvuhpg mentioned jio VoLTE is not supported by xa, because sony has restricted VoLTE services for indian users as u seen in the screenshot previously my VoLTE provisioned was set to disabled by default and after i followed the guide given by you i can see the VoLTE provision is in enabled status now i can see USE VOLTE WHEN AVAILABLE option in network settings , which was disabled earlier.
Now every this looks fine but I cannot see the VoLTE flag in the status bar since jio support only VoLTE i cannot make a call.
Click to expand...
Click to collapse
I believe Volte is working correctly for you or the "Voice Network" would state something other than LTE but hey who am I.

Please help...same problem!!!
sumitha shankar said:
Wow brilliant thanks for your support man it really works.:victory:
But my carrier provider doesn't showing up VoLTE in notification.
Please see attachment I'm using jio in india and it does support VoLTE
Click to expand...
Click to collapse
Please help...same problem!!!
Even Im from india....with jio and xperia xa ultra

it is not working ...volte provisioned turn offs atomatically ...plz help me
sumitha shankar said:
Yes the information is intact . As @rrvuhpg mentioned jio VoLTE is not supported by xa, because sony has restricted VoLTE services for indian users as u seen in the screenshot previously my VoLTE provisioned was set to disabled by default and after i followed the guide given by you i can see the VoLTE provision is in enabled status now i can see USE VOLTE WHEN AVAILABLE option in network settings , which was disabled earlier.
Now every this looks fine but I cannot see the VoLTE flag in the status bar since jio support only VoLTE i cannot make a call.
Click to expand...
Click to collapse

sheel8882 said:
Click to expand...
Click to collapse
Even it turned on VoLte doesn't work on this device.

sumitha shankar said:
Even it turned on VoLte doesn't work on this device.
Click to expand...
Click to collapse
Try this :
Dial *#*#7378423#*#*
Go to Software Info, then scroll down to 2nd last item i.e. Current Modem Config : what does it say? is it using something like this : amss_fsg_yourPhoneCodeName_reliance_jio_ims_tar.mbn ?
If not, then its not using the right modem to use the VoLTE network. You need that modem file to be able to use VoLTE. My phone is Z5, after flashing roms and coming back to stock I was having a hard time activating it, even my phone supports VoLTE officially by jio. So I switched the modem to this one and it works now. But I'm not sure about XA!
Here is some tricks to enable it on Z2. Ofcourse the files are different for every model, but using these steps I got my VoLTE back! Don't flash the zip provided in that thread that is specific to Z2/Z3. Check in /system/etc/customization/modem/ if that file is present there ( the one I've mentioned ) . Then proceed below
Here are the steps required

Currently India having three VoLTE network providers.
India is having three VoLTE network providers
1. JIO
2. Airtel
3.Vodafone
But shame on Sony India support and they don't bother to provide any new updates on xperia XA and XA ultra.
Hope XA F3116 might support with Vodafone VoLTE network just need to wait until its complete launch as currently they are just Testing their network in several areas.

Same issue With Xperia XZ2 H8266
I'm also tried. But I can't find any solution. Anyone give me the solution please. I can't switch on Volte by *#*#4636#*#*..
If any Region Works I can flash that region to use Volte.

How can I activate VoLTE?

I can't any ideas?
I have Xq-as72

Settings \ Network and Internet \ Internet settings \ 4G calling
VoLTE is 4G Calling on this device.

xcascax said:
Settings \ Network and Internet \ Internet settings \ 4G calling
VoLTE is 4G Calling on this device.
Click to expand...
Click to collapse
4G Calling is going to be in the Mobile Network menu, Internet settings just asks to download MMS/APN settings

Zero-21XX said:
I can't ant ideas?
I have Xq-as72
Click to expand...
Click to collapse
Looking at your model number, you have HK varient which won't support VOLTE if you are trying to use in EU.

SavanxD said:
Looking at your model number, you have HK varient which won't support VOLTE if you are trying to use in EU.
Click to expand...
Click to collapse
Why on earth would VOLTE be locked out of a region? I also have the international model XQ-AS72 and am in Australia so is this why I can't seem to see VOLTE setting as well?
Edit: also how do you view the information you've posted?

Bump

Also this code gets into the screen I was after.
*#*#4636#*#*

I have the exact issue with the model. Not able to turn on Volte. Bought it from Hong Kong and using it on indian bands. Why is this happening? Is there a fix?

It's pretty **** we have this issue. Thanks Sony....nice job.

In US version XQ-AS62 there is an option to enable VoLTE from Mobile network.
As far as I know sometimes SIM companies block VoLTE as on my Xperia X Dual, I was able to use VoLTE in India on Jio but here in US T Mobile blocked it so no option of VoLTE even though phone had support. However on Xperia 5 II it's available and works.

Did you get Volte on Xperia 5 ii in India?
Did you try it on Airtel and jio?
Can you please provide the firmware version of your xperia 5 ii.
I have xperia 1 ii model XQAT52 and I don't get Volte in India on this device.

PPGX5II said:
In US version XQ-AS62 there is an option to enable VoLTE from Mobile network.
As far as I know sometimes SIM companies block VoLTE as on my Xperia X Dual, I was able to use VoLTE in India on Jio but here in US T Mobile blocked it so no option of VoLTE even though phone had support. However on Xperia 5 II it's available and works.
Click to expand...
Click to collapse
Did you get Volte on Xperia 5 ii in India?
Did you try it on Airtel and jio?
Can you please provide the firmware version of your xperia 5 ii.
I have xperia 1 ii model XQAT52 and I don't get Volte in India on this device.

FantasticBeast007 said:
Did you get Volte on Xperia 5 ii in India?
Did you try it on Airtel and jio?
Can you please provide the firmware version of your xperia 5 ii.
I have xperia 1 ii model XQAT52 and I don't get Volte in India on this device.
Click to expand...
Click to collapse
I am currently in US so can't check it and firmware version is 58.1.A.3.87 but VoLTE is supported out of box.

VOLTE requires the cell provider to provision for it in the firmware of your device. VOLTE will not work for a USA provider if you use a phone made for a different market like hongkong because the firmware doesnt expect it. You can blame the cell providers for this.
Different versions of Xperia 5ii
I found there are 3 different versions of Xperia 5ii. XQ-AS52, XQ-AS62, XQ-AS72 Anyone know the differences on these three models?
forum.xda-developers.com

PPGX5II said:
I am currently in US so can't check it and firmware version is 58.1.A.3.87 but VoLTE is supported out of box.
Click to expand...
Click to collapse
Can you confirm if wi-fi calling is working on the US model XQ-AS62 ?

ds592 said:
Can you confirm if wi-fi calling is working on the US model XQ-AS62 ?
Click to expand...
Click to collapse
Nope, I am using T-Mobile and Wi-Fi calling is not supported(no option in settings), even *#*#4636#*#* menu shows Wifi Calling Provisioned toggle disabled and Off (VoLTE Provisioned is disabled and On)

FantasticBeast007 said:
Did you get Volte on Xperia 5 ii in India?
Did you try it on Airtel and jio?
Can you please provide the firmware version of your xperia 5 ii.
I have xperia 1 ii model XQAT52 and I don't get Volte in India on this device.
Click to expand...
Click to collapse
Good news.

jamshadinho said:
Good news.
Click to expand...
Click to collapse
Please ignore there are battery related issues with SEA FIRMWARE

FantasticBeast007 said:
Please ignore there are battery related issues with SEA FIRMWARE
Click to expand...
Click to collapse
Can you explain? Volte working fine on India on Xperia 5ii?

why would you need volte? You don't have 3G network?