[GUIDE] VoLTE & VoWIFI for Xiaomi 10T/10T Pro 5G custom roms - Xiaomi Mi 10T / 10T Pro Guides, News, & Discussion

Hi all,
I would like to write a short instruction about getting VoLTE and VoWIFI to work on a Xiaomi device. I'm using a Xiaomi 10T 5G with Evolution X, but it has mainly to do with the modem in your device, so it might work for other devices and ROMs as well. If you use a different ROM, the way DIAG mode is enabled might be different for you.
Code:
/*
* I am not responsible for bricked devices or any damage you made
* to your device. You have been warned
* Your are making changes to your modem's firmware. Make sure you
* have a backup!
*/
You have to enable VoLTE and VoWIFI in your device settings.
To check if it works:
- dial *#*#4636#*#*
- chose phone information
- chose in the menu IMS-servicestatus
You will have VoLTE and VoWIFI if it says registered and availabe.
If not, you can continue with the instructions below:
You will need a few things for this, like:
- Qualcomm USB Drivers
- QPST
- Root or another way to enable diag mode
- ADB
- Xiaomi firmware zip file
You can find many tutorials on XDA about these things, so I'm not going into detail about how to set this all up.
If you have the above installed and working:
Open a command prompt
Code:
adb shell
Code:
setprop sys.usb.config diag,serial_cdev,rmnet,adb
After you install QPST search in winodws for PDC (a yelllow and white icon) and open it.
Select 'Qualcomm HS-USB WWAN adapter'. (if this doesn't work, check if you've installed the Qualcomm USB Drivers correctly)
You'll now see a list of all modem configuration files. Check if your carrier is in the list. If so, right click on it, select SUB0 and SUB1, and click 'activate'. Check if VoLTE and VoWIFI works, if yes, reboot and check again.
If you do not see your carrier in the list, download the firmware for your device.
Extract the zip file
Navigate to \firmware-update\NON-HLOS.bin and extract this file
Navigate to \firmware-update\NON-HLOS\image\modem_pr\mcfg\configs\mcfg_sw\generic\ and search for the .mbn file for your carrier. Mine was in fw_apollo_miui_APOLLOGlobal_V14.0.1.0.SJDMIXM_2e94304468_12.0\firmware-update\NON-HLOS\image\modem_pr\mcfg\configs\mcfg_sw\generic\AF\Vodafone\Commercial\EG
Go back to PDC and chose 'load'
Select the .mbn file you've found above
PDC will reload the list and you'll now see the profile for your carrier.
Right click on it, select SUB0 and SUB1, and click 'activate'. Check if VoLTE and VoWIFI works, if yes, reboot and check again.
Now go back to adb and write
Code:
setprop sys.usb.config mtp,adb
to go back to default usb settings.
This should do the trick. You'll now have VoLTE and VoWIFI working.
It took me days to come down to this, with a lot of Google-Fu and very helpfull XDA topics. So I hope it might help you as well.
This has been tested for Vodafone Egypt, mbn for Vodafone EG has been attached (extracted from latest global firmware V14.0.1.0.SJDMIXM), just load and activate.
reference: https://forum.xda-developers.com/t/guide-volte-vowifi-xiaomi-phone.4573331/

Related

QCN file

hey everyone,
I'm looking for an answer to CA issues(LTE plus/4G+) on another device and I want to check out op3t qcn file for LTE configs. if you could upload your phone's qcn file,It would be a big help. I just want to check nvids related to LTE.
also please state your device model and if you have LTE Plus on your phone carrier.
note : if you're concerned about your phone's IMEI, please google "how to change IMEI", you will use a hex editor tool to change it or you could simply use qualcomm's qrct software to export only nvids related to LTE by simply opening your qcn on qrci software, type LTE in Filter field, hit Enter key on your keyboard, select all of them by using your mouse, then select write all to> qcn. it will export it.
this is my thread regarding the issue that I'm looking into :
https://forum.xda-developers.com/redmi-note-3/help/carrier-aggregation-issue-xiaomi-phones-t3624585
this is the guide for creating qcn file from your device :
1. Opening DIAG - Assuming you got your phone rooted, run this command from ADB
adb shell
su
setprop sys.usb.config diag,adb
2. Now your devices wil either detected as unknown device (or Qualcomm Diag Port/USB Modem if you already have the diag driver) on Device Manager
3. Install the driver from requirement list number one, and you will have "HTC USB Modem" listed in your device manager (skip this step, if you already have your own qualcomm usb diag driver installed)-(remember to disable signature enforcement if you use WIN8/10)
4. Now fire up QPST and go to "Port" tab, and choose "Add New Port" ,
5. On "Serial/USB Port" tab, unchecked the option of "Show Serial & USB...bl bla bla" option, you will see your phone listed there as a "COM#" (# is a number depending on your PC) choose it, and click "OK"
6. Now choose "Start Clients" from the Menu tab above, and choose "Software Download"
7. Airplane Mode your Phone
8. Choose "Backup" Tab, and click browse for QCN file, select ".qcn" from save as type, type name of the file and click save then click start.
https://forum.xda-developers.com/oneplus-3/how-to/guide-unlock-additional-lte-bands-t3519563
Do not upload this file. It contains the content of the EFS partition including the IMEI's of your phone...
virusmoere said:
Do not upload this file. It contains the content of the EFS partition including the IMEI's of your phone...
Click to expand...
Click to collapse
you could simply change it via hex editor! or you could export only nvids related to lte via qrct.
You have some QCNs here:
https://forum.xda-developers.com/oneplus-3/how-to/guide-unlock-additional-lte-bands-t3519563
BTslo said:
You have some QCNs here:
https://forum.xda-developers.com/oneplus-3/how-to/guide-unlock-additional-lte-bands-t3519563
Click to expand...
Click to collapse
yeah,you're right. thanks. I just quickly read it and thought it's only got the modifications.

[GUIDE] Enable VoLTE/VoWiFi on LineageOS 17.1 for EU carriers Oneplus 6T

[GUIDE] Enable VoLTE + VoWiFi for German and other EU carriers on the Oneplus 6T running LineageOS 17.1
Requirements:
- Phone must be rooted
- A computer running Windows to connect your phone with (Also tested Windows 7 running in Virtualbox)
- Qualcomm USB Driver (Downloadlink)
- Qualcomm PST Tool (Downloadlink)
- ADB
IMPORTANT: This can break your phone! Make a backup of your EFS Partition! This can be done with TRWP.
1)
Download and install Qualcomm USB Driver and PST Tool on your computer. Make sure, you have the adb tool as well.
2)
On your phone activate the hidden developer settings:
Settings -> About -> Build-Number (press it multiple times)
then
Settings -> System -> Devloperoptions
Activate:
Android-Debugging
Local Shell
Connect your phone to your computer.
3)
Open a shell on your computer and type:
Code:
adb shell
Watch your phone to accept the incoming connection from your computer.
Type:
Code:
su
and watch your phone again to accept root access.
Activate the Diagnostic Mode by typing:
Code:
setprop sys.usb.config diag,serial_cdev,serial_tty,rmnet_ipa,mass_storage,adb
Your phone will disconnect from adb, but thats ok.
4)
On your computer open "PDC" from the installed QPST application as admin.
In the device list, select your phone.
In the upcoming list look for "Oversea-Commercial_DS", right click it and deactivate Sub0 and Sub1
Click "Oversea-Commercial_DS" again and press the Remove button.
Close the PDC Tool and open it again.
Select your phone again
Look for Telefonica_UK_Commercial, right click and SetSelectedConfig for both Sub0 and Sub1
Click on Telefonica_UK_Commercial again and click the Activate button
Close the application
5)
Unplug your phone and reboot it.
Make sure you have activated VoLTE/VoWiFI in your settings.
6)
No VoLTE/VoWIFI icon is shown in the status bar. You can check the IMS status as followed:
Open the dialer and enter the code: *#*#4636#*#*
This will open the Testing menu. Select the first entry "Phone information".
In the option "Select phone index" you can choose your sim card you want to get information about.
Then, press the three dotted menu in the upper right and select "IMS Service Status"
If it says "IMS Registration: Registered" everything is working fine. Depending on whether you are on WiFi or LTE, "Voice over LTE" or "Voice over WiFi" will be shown as "Available as well.
Enjoy!
Great work. I'm on Linux. What is this qpst and psd tools for exactly and is there a way to do the changes from Linux?
Termehansen said:
Great work. I'm on Linux. What is this qpst and psd tools for exactly and is there a way to do the changes from Linux?
Click to expand...
Click to collapse
I'm on Linux too. Qpst is a USB Modem driver and PSD is a Tool to access and alter the modem firmware on the phone.
Unfortunately these will only run on Windows. I used VirtualBox and run Windows 7 (I bought a cheap license key some time ago) on it.
So none of these tools could be helpful?
https://github.com/openpst
Termehansen said:
So none of these tools could be helpful?
https://github.com/openpst
Click to expand...
Click to collapse
Interesting, I didn't know these tools. Maybe it could work.
Thank you for the guide. Still, I think you have a typo:
Sayonara123 said:
Code:
setprop sys.usb.config diag,serial_cdev,serial_tty,rmnet_ipa,mass_storage ,adb
Click to expand...
Click to collapse
There's a space preceding ',adb', and with blindly using this command something went wrong on my Windows PC. Had to restart. 'setprop' also supports only 2 arguments.
Another thing:
Sayonara123 said:
Remark:
I did not test it, yet. But you may have to repeat the procedure after every LineageOS update.
Click to expand...
Click to collapse
You should put that on top, maybe make it bold and set a bigger font. It looked like a tested and working method, I just blindly followed the instructions without questioning (also a mistake on my part).
Anyway, I followed the steps successfully but cannot see if VoLTE/VoWifi is functional as there is not indicator in LineageOS 17.1. If anyone knows a way, feel free to tell.
Thanks again.
Thank you for your reply.
martin.42 said:
Thank you for the guide. Still, I think you have a typo:
Click to expand...
Click to collapse
You are right, It's a typo, I didn't notice. Fixed it.
Another thing:
Click to expand...
Click to collapse
The whole procedure was tested on my own phone. There was just one unclear thing, whether these changes survive an update of the LineageOS system. It does! So I removed this obsolet remark.
Anyway, I followed the steps successfully but cannot see if VoLTE/VoWifi is functional as there is not indicator in LineageOS 17.1. .
Click to expand...
Click to collapse
Yes, it's a pitty there's no indicator in the status bar. I've found another way to check functionality and added it to the guide.
Hope this make things more clearly.
Thx
Tried it on stock oos 10.3.6, and windows 10. Have swedish carrier Tre (Hallon).
Works great! Thanks for your guide! ?
Procedure fails on OP6 with LineageOS20, phone is not visible in PDC.

Bell, Telus, Koodo and Freedom Mobile Volte and Vowifi Calling Working *Update Android 11 Require Root*

Finally
I can confirm it worked on my Oneplus 7 Pro both Volte and Vowifi calling it also can work on oneplus 6, and 6T since I don't have a device so I can't test it.
some people are unable to activated so this method require additional step for them.
Install QPST: https://mega.nz/file/zQt3ESDA#dd69iA2r9xZaYwWvYrCvVHl-OmjucIWI4ETFBTO5bM8 (This tool only work on Oneplus 6,6t, 7 series. Oneplus has blocked this tool on oneplus 5 series)
Next steps:
find PDC tool from installed QPST and open
select device from drop-down menu, if it is empty, you will have to reinstall/choose another driver
now right-click on overseas commerical ds and select Deactivated - Sub0
now right-click on Commerical-TMO and select SetSelectedConfig - Sub0
and now button Activate
Restart your phone than apply following step:
Oneplus Usb driver (Dont install it if you already installed this before)
https://mega.nz/file/GYkxjByK#M6CZA9c9JQaX27j3dLzXRjBrclSVSB9cJs00B5BXdAI
After unzipping pixel3.zip you need to go to: Pixel3\mcfg_sw\generic\Pixel\NA\Freedom\VoLTE and copy mcfg_sw.mbn file to folder where you will have your EfsTools saved. It will ask you to overwrite one that is in that folder. Press yes.
Now follow these steps:
This method doesn't required root.
0. Make sure that you just enabled the VoWiFi and VoLTE in your carrier first !!!
1. Download and install the oneplus LogKit and Engineering mode apk:
3. Type *#800# --> oneplus Logkit --> Function Switch --> enable VoLTE and VoWifi switch
4. Open Settings --> WiFi & Intenet --> SIM & netwok --> enable VoLTE and VoWifi switch
5. Connect your phone to PC
6. Type *#801# in Phone app and enable Full-port switch (if your computer unable to recognize COM PORT try installing qualcomm driver: https://mega.nz/file/jV9ByarL#lbryKSC6uk9D-GTErtJ0SHyVOfWKA2TIl-psXmhj4YU)
7. Download and unzip the EfsTools with config files includes. (Make sure copy mcfg_sw.mbn file from pixel3.zip freedom folder replace the file if already exit.)
8. Open CMD as Administrator on the PC, navigate to the folder where you extract the files (eg. cd c:\EfsTools-0.10-modded-1.2-win32)
9. Now execute the following commands:
EfsTools.exe efsInfo
If your Freedom sim in Slot 1 use this command:
1. EfsTools.exe writeFile -i mcfg_autoselect_by_uim -o /nv/item_files/mcfg/mcfg_autoselect_by_uim
2. EfsTools.exe uploadDirectory -i mcfg_sw.mbn -o / -v
If your Freedom sim in Slot 2 use this command:
1. EfsTools.exe writeFile -i mcfg_autoselect_by_uim -o /nv/item_files/mcfg/mcfg_autoselect_by_uim -s 1
2. EfsTools.exe uploadDirectory -i mcfg_sw.mbn -o / -s 1
Thats it. Commands with "1" on at the end are for the second SIM card.
You must register here in order to wifi calling work: https://vowifi.authenticateme.ca/
Credit goes to @popos1 and @astracd. Original Post: https://forums.oneplus.com/threads/freedom-mobile-wifi-calling-working.1284987/
You need These file:
Pixel 3 mbn file:
https://forum.xda-developers.com/showpost.php?p=78563337&postcount=4 (Recommend for oneplus 6 series)
Pixel 4 mbn file:
https://forum.xda-developers.com/pixel-4/help/mbn-files-pixel-4-request-t4050247 (Recommend for Oneplus 7 series)
Thanks for @asasanc
Oneplus logkit:
https://mega.nz/file/rZlADYzD#Pg8vLZI4tZ16VXe-v-JfPLCiCab9fTTWwFcPBI04oho
Efstool:
https://mega.nz/file/fQcnQAZT#i0dRA6PvsuK4_PmLHPVXSwhOZroSsR6P1CuUDHwHW8g
Enigneering Mode apk:
https://www.apkmirror.com/apk/onepl...-0-171117173719-25c8842-android-apk-download/
Join Telegram group:
https://t.me/joinchat/QOPwqkqivRqnI4YIW2bojA
Edit:
Alot of people have confirm this method working on Oneplus 6,6t, 7,7 pro, 7t, and 8. For some people VoLTE works right away but for some it take few day to provision as per freedom it could take somewhere 72-120 HR to provision.
Edit 2:
Pixel 2 mbn for oneplus 5. This is recommended for Oneplus 5 only.
https://mega.nz/file/HUsHVYqS#n7pDP-mEMIY5MXffqViAVoqPgF_Au3hzzm6s5dgBZu0
Update: 3/25/2021
This new method requires Root on Android 11.​Please note Engineering won't work on Android 11. you need to follow the following steps to open the ports.
you need Adb tool Platform-tool.
https://dl.google.com/android/repository/platform-tools-latest-windows.zip
1. Extract the Folder
2. Open the Platform Tool folder then hold the Shift key and right-click on empty space to open the Command Prompt in the same folder.
3. Then Type "ADB shell"
4. Then type "su" (This will ask root access on your phone)
5. Then type this command to open the port.
"setprop sys.usb.config diag,serial_cdev,rmnet,adb"
Then you have will access to EFStool and PDC tool to Flash mbn file using the above method
can any other users confirm this is working? I wonder if this will allow the oneplus to connect to band 13 then as well? Because freedom was keeping band 13 for phones compatible with VOLTE on their network.
It works for me - wifi calling on OnePlus 6T McLaren. But not volte. I'm unsure if there is volte in my area. My wife have s9 bought from freedom and it doesn't switch to volte (wifi calling works)
astracd said:
It works for me - wifi calling on OnePlus 6T McLaren. But not volte. I'm unsure if there is volte in my area. My wife have s9 bought from freedom and it doesn't switch to volte (wifi calling works)
Click to expand...
Click to collapse
does this trick only work on stock roms, or would it work on a custom rom as well?
What do you mean by Step 0?
Edit: Did some Googling and found that you have to enable it on a webpage. Use this link to do so: https://vowifi.authenticateme.ca
I can't seem to get past the command: EfsTools.exe efsInfo
Keep getting the follow: Critical Error. The Operation has timed out.
And yes I am in an elevated command prompt.
Checking device manager shows me that when I have Serial and Full-port Switch ON, I have three devices (CDev Serial, OnePlus, OnePlus) that there are no drivers installed for. Not sure where to get these as searching automatically for an updated driver returns nothing...
omvir said:
can any other users confirm this is working? I wonder if this will allow the oneplus to connect to band 13 then as well? Because freedom was keeping band 13 for phones compatible with VOLTE on their network.
Click to expand...
Click to collapse
Yes it does connect to band 13.
CrazedBoredom said:
What do you mean by Step 0?
Edit: Did some Googling and found that you have to enable it on a webpage. Use this link to do so: https://vowifi.authenticateme.ca
I can't seem to get past the command: EfsTools.exe efsInfo
Keep getting the follow: Critical Error. The Operation has timed out.
And yes I am in an elevated command prompt.
Checking device manager shows me that when I have Serial and Full-port Switch ON, I have three devices (CDev Serial, OnePlus, OnePlus) that there are no drivers installed for. Not sure where to get these as searching automatically for an updated driver returns nothing...
Click to expand...
Click to collapse
here you can download this oneplus driver . but can get this driver as well when you connect your phone to computer.
https://mega.nz/file/GYkxjByK#M6CZA9c9JQaX27j3dLzXRjBrclSVSB9cJs00B5BXdAI
nabbasi said:
here you can download this oneplus driver . but can get this driver as well when you connect your phone to computer.
https://mega.nz/file/GYkxjByK#M6CZA9c9JQaX27j3dLzXRjBrclSVSB9cJs00B5BXdAI
Click to expand...
Click to collapse
I've installed the one from my phone and still no dice. Still no drivers for the three devices. =\
This is awesome news. Thanks for sharing brother!
CrazedBoredom said:
I've installed the one from my phone and still no dice. Still no drivers for the three devices. =\
Click to expand...
Click to collapse
.
Did you run CMD as administrator if not try with that.
nabbasi said:
.
Did you run CMD as administrator if not try with that.
Click to expand...
Click to collapse
Yep, no dice.
astracd said:
It works for me - wifi calling on OnePlus 6T McLaren. But not volte. I'm unsure if there is volte in my area. My wife have s9 bought from freedom and it doesn't switch to volte (wifi calling works)
Click to expand...
Click to collapse
I have op6t and am trying to do this but i am stuck on step 6 (6. Type *#801# in Phone app and enable Serial and Full-port switch).
everytime i try to do that , nothing happens. I am rooted on stock oxygen 10.3.5 if that matters.
darkknight200 said:
I have op6t and am trying to do this but i am stuck on step 6 (6. Type *#801# in Phone app and enable Serial and Full-port switch).
everytime i try to do that , nothing happens. I am rooted on stock oxygen 10.3.5 if that matters.
Click to expand...
Click to collapse
I have google dialer. So each time I run codes need to disable it and enable OP dialer as default dialer. So that could be one of reasons that doesn't work for you.
Second reason that it can be
You also need to get dialer that works as latest version doesn't work. I will try to find a post where they had dialer that works. I believe it was in one of OP5 topics for enabling the volte/vowifi.
Third reason
You would need to install engineering mode
I will try to attach the app
astracd said:
I have google dialer. So each time I run codes need to disable it and enable OP dialer as default dialer. So that could be one of reasons that doesn't work for you.
Second reason that it can be
You also need to get dialer that works as latest version doesn't work. I will try to find a post where they had dialer that works. I believe it was in one of OP5 topics for enabling the volte/vowifi.
Third reason
You would need to install engineering mode
I will try to attach the app
Click to expand...
Click to collapse
ya i managed to install the engineering mode apk from https://www.apkmirror.com/apk/onepl...-0-171117173719-25c8842-android-apk-download/ and can dial in the op dialer fine now.
when i try to enable serial it crashes but full port switch is able to turn on though.
darkknight200 said:
ya i managed to install the engineering mode apk from https://www.apkmirror.com/apk/onepl...-0-171117173719-25c8842-android-apk-download/ and can dial in the op dialer fine now.
when i try to enable serial it crashes but full port switch is able to turn on though.
Click to expand...
Click to collapse
Full port is enough. You don't need serial. :good:
astracd said:
Full port is enough. You don't need serial. :good:
Click to expand...
Click to collapse
ok now i am trying the commands in full admin but i keep getting the error message in the screenshot attatched
edit also when I have the serial port enabled, i chekd device manager and it gave me this in the 2nd screenshot. In normal mode without serial port enable, my phone shows up as normal function phone storage device.
darkknight200 said:
ok now i am trying the commands in full admin but i keep getting the error message in the screenshot attatched
edit also when I have the serial port enabled, i chekd device manager and it gave me this in the 2nd screenshot. In normal mode without serial port enable, my phone shows up as normal function phone storage device.
Click to expand...
Click to collapse
Did you open CMD as administrator?
And when you connect phone to laptop did laptop made connection sound ?
astracd said:
Did you open CMD as administrator?
And when you connect phone to laptop did laptop made connection sound ?
Click to expand...
Click to collapse
Yes to both
Other things I can think of right now change charging to drive for your usb connection.
Sometimes windows acting weird when the addresses are long. C:\xxxxxxxxx
I had saved mine in C:\efstools
I renamed folder didn't use full name
I don't think this will help, but worth to try. I will think more about it.
astracd said:
Other things I can think of right now change charging to drive for your usb connection.
Sometimes windows acting weird when the addresses are long. C:\xxxxxxxxx
I had saved mine in C:\efstools
I renamed folder didn't use full name
I don't think this will help, but worth to try. I will think more about it.
Click to expand...
Click to collapse
stil no luck with renaming them and using different state from charging to file transfer mode

[Guide]Activate VoLTE/VoWiFi OOS 11(OB1&OB2)

Hi everyone.
Code:
/*
* Your warranty is void. Or vaild, probably?
*
* I am not responsible for bricked devices, dead SD cards, Ebolation X,
* thermonuclear war, or the current economic crisis caused by you following
* these directions. YOU are choosing to make these modificiations, and if
* you point your finger at me for messing up your device, I will LMAO at you.
*/
First you will need that apps:
EFS Modded 1.2
EFS
mbns-mi9t.zip can use this or can use this Pixel mbns
OEMLogKit_1.0-1.apk
EngineeringMode.apk
NOTE: ON custom ROM OEM and Enginer mode does not work. See step 5.1 for custom ROM.
1. Enter * # 800 # in the stock dialer, and then click oneplus Logkit - next - Function Switch - next - activate VoLTE switch, VoWifi switch and VT switch.
2. Reboot device.
3. Install Qualcomm QPST Diag port x64 / QPST 2.7.474 software on your computer
4. Unzip EfsTools from above, open up a cmd window and cd to the directory where you extracted it. Depending on how you connect to diag you will need to modify EfsTools.exe.config - if you're connecting via USB you most likely won't have to do anything as it will find the port automatically, unless you have more than one port, in which case you can simply change port from Auto to the COM port of the phone (for example COM13).
5. With your phone connected via USB enter *#801# and check Engineer Mode Toggle switch to ON.
5.1. If you are on custom ROM you activate the enginer mode by entering in adb shell and run the next command:
setprop sys.usb.config diag,serial_cdev,rmnet,adb
5.2. Also if you are on custom rom you can use this method or the PDC one, also not using OEM and engineer, just run command from 5.1 and you should see your phone in PDC.
6. You can test the connection by running this in the cmd window:
Code:
EfsTools.exe efsInfo
Should return something like this:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
This should report back some info if everything is working.
7. Extract efs.zip from above to the same directory as EfsTools.exe, and make sure the mcfg_autoselect_by_uim file is there. Now simply run this in the cmd window, one line at a time:
Code:
EfsTools.exe writeFile -i mcfg_autoselect_by_uim -o /nv/item_files/mcfg/mcfg_autoselect_by_uim
EfsTools.exe writeFile -i mcfg_autoselect_by_uim -o /nv/item_files/mcfg/mcfg_autoselect_by_uim -s 1
If everything worked you should see no error messages.
The mbn directory structure is generally laid out like this: <region>/<carrier>/commerci/<country>/mcfg_sw.mbn. For example, the one for my carrier is eu/h3g/commerci/se/mcfg_sw.mbn. Copy the mcfg_sw.mbn file to the same directory as the EfsTools.exe, then go to the cmd window you opened and type this:
Code:
EfsTools.exe uploadDirectory -i mcfg_sw.mbn -o / -v
EfsTools.exe uploadDirectory -i mcfg_sw.mbn -o / -s 1
8. If it has worked you should see a bunch of output, but no errors. Try rebooting now, and hopefully after it has booted you will have fully functional VoLTE and VoWiFi.
Credits to:
HomerSp
jimmy123322
If you manage to activate VoLTE/VoWiFi using this guide please let us know your Country--Carrier--MBNS that you used.
Proof:
Same method worked fine for me, though I got the information and files from different sources, as I have been looking for some days for a solution. Also, it's possible to set the engineer mode using adb, rather then installing the Engineer apk, by writing in adb shell setprop sys.usb.config diag,adb
I used the Telefonika_UK_Commercial mbn from Pixel 4, so far it seems a lot more stable than the one from OOS (on OOS10 it was continuously switching between VoWiFi/VoLTE every few minutes).
Romania - Digi.Mobil - Pixel's 4 EU\Telefonica\Commercial\UK, if it makes any difference.
Thanks. Worked for me.
Qatar > Ooredoo. Used Telefonica Commercial UK. Both Pixel & Mi9 mbn files worked for me, but ended up using the Pixel file because it is a larger file, so thought it might contain more information.
Some notes:
For Ooredoo, dialing "111" will not work while in VoLTE. Have to be on 3G network. I faced the same issue even in Android 10. On an iPhone or Samsung S20 that has VoLTE enabled from the factory, the phone would automatically switch to 3G when dialing "111".
I used PowerShell Window and I had to "./" to the commands from OP (i.e. used "./EfsTools.exe efsInfo")
I first got "Critical error. The requested resource is in use. " when running the "./EfsTools.exe efsInfo" command. Had to open QPST Configuration > at the top clicked Server > then Stop QPST Server. Then it worked.
I have two questions if anyone can answer,
How to revert to stock if we have to?
Is it possible to find and use mbn files from a Samsung Phone? Specifically S20 FE 5G as it is also using a Qualcomm chipset here and VoLTE works fine from the factory for my carrier.
Please please please someone tell me how to get efs to work outside of oos!
The setprop command doesn't work
vladvlad12 said:
Hi everyone.
Code:
/*
* Your warranty is void. Or vaild, probably?
*
* I am not responsible for bricked devices, dead SD cards, Ebolation X,
* thermonuclear war, or the current economic crisis caused by you following
* these directions. YOU are choosing to make these modificiations, and if
* you point your finger at me for messing up your device, I will LMAO at you.
*/
First you will need that apps:
EFS Modded 1.2
EFS
mbns-mi9t.zip can use this or can use this Pixel mbns
OEMLogKit_1.0-1.apk
EngineeringMode.apk
1. Enter * # 800 # in the stock dialer, and then click oneplus Logkit - next - Function Switch - next - activate VoLTE switch, VoWifi switch and VT switch.
2. Reboot device.
3. Install Qualcomm QPST Diag port x64 / QPST 2.7.474 software on your computer
4. Unzip EfsTools from above, open up a cmd window and cd to the directory where you extracted it. Depending on how you connect to diag you will need to modify EfsTools.exe.config - if you're connecting via USB you most likely won't have to do anything as it will find the port automatically, unless you have more than one port, in which case you can simply change port from Auto to the COM port of the phone (for example COM13).
5. With your phone connected via USB enter *#801# and check Engineer Mode Toggle switch to ON.
6. You can test the connection by running this in the cmd window:
Code:
EfsTools.exe efsInfo
This should report back some info if everything is working.
7. Extract efs.zip from above to the same directory as EfsTools.exe, and make sure the mcfg_autoselect_by_uim file is there. Now simply run this in the cmd window, one line at a time:
Code:
EfsTools.exe writeFile -i mcfg_autoselect_by_uim -o /nv/item_files/mcfg/mcfg_autoselect_by_uim
EfsTools.exe writeFile -i mcfg_autoselect_by_uim -o /nv/item_files/mcfg/mcfg_autoselect_by_uim -s 1
If everything worked you should see no error messages.
The mbn directory structure is generally laid out like this: <region>/<carrier>/commerci/<country>/mcfg_sw.mbn. For example, the one for my carrier is eu/h3g/commerci/se/mcfg_sw.mbn. Copy the mcfg_sw.mbn file to the same directory as the EfsTools.exe, then go to the cmd window you opened and type this:
Code:
EfsTools.exe uploadDirectory -i mcfg_sw.mbn -o / -v
EfsTools.exe uploadDirectory -i mcfg_sw.mbn -o / -s 1
8. If it has worked you should see a bunch of output, but no errors. Try rebooting now, and hopefully after it has booted you will have fully functional VoLTE and VoWiFi.
Credits to:
HomerSp
jimmy123322
If you manage to activate VoLTE/VoWiFi using this guide please let us know your Country--Carrier--MBNS that you used.
Click to expand...
Click to collapse
Did you finally get VoWiFi working? Which profile worked for you?
dilruk said:
Did you finally get VoWiFi working? Which profile worked for you?
Click to expand...
Click to collapse
Only VoLTE, using india Vodafone. Will try some more mbns later today.
Thanks for help! I find one from pixel that let my VoWiFi works! If anyone need to know which one is Pixel/APAC/Airtel/pixel_Commercial/. I am using Vodafone Romania. VoLTE also works!Also VoWiFi work with Airplane Mode on.
vladvlad12 said:
Only VoLTE, using india Vodafone. Will try some more mbns later today.
Thanks for help! I find one from pixel that let my VoWiFi works! If anyone need to know which one is Pixel/APAC/Airtel/pixel_Commercial/. I am using Vodafone Romania. VoLTE also works!View attachment 5200321View attachment 5200323Also VoWiFi work with Airplane Mode on.View attachment 5200325
Click to expand...
Click to collapse
Thanks man. Working great.
Tried it in oneplus 6t on same network, but strange it is not working. The VoLTE and VoWiFi switch appeared under network->sim, but no VoWiFi. Idk about VoLTE, din no try that one yet.
miffymiffy said:
Please please please someone tell me how to get efs to work outside of oos!
The setprop command doesn't work
Click to expand...
Click to collapse
What setprop? To enable diag? Like the one from *#801#?
vladvlad12 said:
Hi everyone.
Code:
/*
* Your warranty is void. Or vaild, probably?
*
* I am not responsible for bricked devices, dead SD cards, Ebolation X,
* thermonuclear war, or the current economic crisis caused by you following
* these directions. YOU are choosing to make these modificiations, and if
* you point your finger at me for messing up your device, I will LMAO at you.
*/
First you will need that apps:
EFS Modded 1.2
EFS
mbns-mi9t.zip can use this or can use this Pixel mbns
OEMLogKit_1.0-1.apk
EngineeringMode.apk
1. Enter * # 800 # in the stock dialer, and then click oneplus Logkit - next - Function Switch - next - activate VoLTE switch, VoWifi switch and VT switch.
2. Reboot device.
3. Install Qualcomm QPST Diag port x64 / QPST 2.7.474 software on your computer
4. Unzip EfsTools from above, open up a cmd window and cd to the directory where you extracted it. Depending on how you connect to diag you will need to modify EfsTools.exe.config - if you're connecting via USB you most likely won't have to do anything as it will find the port automatically, unless you have more than one port, in which case you can simply change port from Auto to the COM port of the phone (for example COM13).
5. With your phone connected via USB enter *#801# and check Engineer Mode Toggle switch to ON.
6. You can test the connection by running this in the cmd window:
Code:
EfsTools.exe efsInfo
Should return something like this:
View attachment 5200327
This should report back some info if everything is working.
7. Extract efs.zip from above to the same directory as EfsTools.exe, and make sure the mcfg_autoselect_by_uim file is there. Now simply run this in the cmd window, one line at a time:
Code:
EfsTools.exe writeFile -i mcfg_autoselect_by_uim -o /nv/item_files/mcfg/mcfg_autoselect_by_uim
EfsTools.exe writeFile -i mcfg_autoselect_by_uim -o /nv/item_files/mcfg/mcfg_autoselect_by_uim -s 1
If everything worked you should see no error messages.
The mbn directory structure is generally laid out like this: <region>/<carrier>/commerci/<country>/mcfg_sw.mbn. For example, the one for my carrier is eu/h3g/commerci/se/mcfg_sw.mbn. Copy the mcfg_sw.mbn file to the same directory as the EfsTools.exe, then go to the cmd window you opened and type this:
Code:
EfsTools.exe uploadDirectory -i mcfg_sw.mbn -o / -v
EfsTools.exe uploadDirectory -i mcfg_sw.mbn -o / -s 1
8. If it has worked you should see a bunch of output, but no errors. Try rebooting now, and hopefully after it has booted you will have fully functional VoLTE and VoWiFi.
Credits to:
HomerSp
jimmy123322
If you manage to activate VoLTE/VoWiFi using this guide please let us know your Country--Carrier--MBNS that you used.
Proof:
Click to expand...
Click to collapse
Country Bulgaria--Carrier Vivacom--MBNS Vodafone Germany. Volte and vowifi worked.
vladvlad12 said:
What setprop? To enable diag? Like the one from *#801#?
Click to expand...
Click to collapse
setprop sys.usb.config diag,serial_cdev,rmnet,adb
that is the command that is required to enable the serial port to use PDC, which works fine on custom roms, however it does not allow the com port to work on EFS. Which is what I need. Otherwise its back to OOS to do the commands, wiping and resetting everything back up. Its a PITA.
miffymiffy said:
setprop sys.usb.config diag,serial_cdev,rmnet,adb
that is the command that is required to enable the serial port to use PDC, which works fine on custom roms, however it does not allow the com port to work on EFS. Which is what I need. Otherwise its back to OOS to do the commands, wiping and resetting everything back up. Its a PITA.
Click to expand...
Click to collapse
Try this:
adb reboot ftm
Wait about 20-30 seconds, or if you have sounds in windows till you get the device connected one.
adb shell setprop sys.usb.config diag,adb
You shouldn't need all the modes. Also make sure you have the drivers installed (you should see the ports opened in device manager under com ports).
When finished, do adb reboot to exit ftm.
Just noticed you want to do it through PDC? I'm afraid it looks like that doesn't work anymore, you need to use EfsTools.
morphvale said:
Try this:
adb reboot ftm
Wait about 20-30 seconds, or if you have sounds in windows till you get the device connected one.
adb shell setprop sys.usb.config diag,adb
You shouldn't need all the modes. Also make sure you have the drivers installed (you should see the ports opened in device manager under com ports).
When finished, do adb reboot to exit ftm.
Just noticed you want to do it through PDC? I'm afraid it looks like that doesn't work anymore, you need to use EfsTools.
Click to expand...
Click to collapse
Nah mate, thats exactly what i was after. The setprop command doesnt work on efs on aosp roms. just says bad port, even though its correct. ill try this.
miffymiffy said:
Nah mate, thats exactly what i was after. The setprop command doesnt work on efs on aosp roms. just says bad port, even though its correct. ill try this.
Click to expand...
Click to collapse
But set prop should be executed in adb shell, not efs.
I have extracted the MBNs from OP7 Pro. Hope this will help someone.
dilruk said:
I have extracted the MBNs from OP7 Pro. Hope this will help someone.
Click to expand...
Click to collapse
Thanks!
Hi,
there a chance it works with OP8T?
stale86 said:
Hi,
there a chance it works with OP8T?
Click to expand...
Click to collapse
I think it might, you just need to find the right mbn
vladvlad12 said:
I think it might, you just need to find the right mbn
Click to expand...
Click to collapse
iam currently using the old method,
Updates the modem using QPST,
Choose the profile India vodafone,
And the LTE, Vowifi work great,
But the device returns to the default setting Oversea Profile,
from time to time.
in this guide the default profile is what I choose ?
This is doing exact what QPST is doing, so I think you will have same problem. This guide is for those on oos 11 for whom QPST is not working anymore.
stale86 said:
iam currently using the old method,
Updates the modem using QPST,
Choose the profile India vodafone,
And the LTE, Vowifi work great,
But the device returns to the default setting Oversea Profile,
from time to time.
in this guide the default profile is what I choose ?
Click to expand...
Click to collapse

How To Guide [NE2213] How to enable VoLTE (OnePlus 10 Pro 5G)

A lot of things changed with OnePlus brand, now they are exactly same as Oppo (OxygenOS 13 and ColorOS 13 are exactly same)
I believe OnePlus 9 Pro was the last real OnePlus smartphone.
R.I.P. OnePlus and OxygenOS !!
By the way this isn't the point of this thread, so let's start the process:
Unfortunately you need root access to enable VoLTE, also you need a windows PC for this.
Warning: do it at your own risk, I'm not responsible if somethings goes wrong for you !!
In my opinion, OnePlus created a whitelist for carriers and if your carrier is not on the list, you can't use VoLTE, even though it fully supports it !! WTF OnePlus ?!!
Before with OnePlus 9 Pro we could enable VoLTE by LogKit and EngineerMode
Now with OnePlus 10 Pro you are out of luck because LogKit doesn't work at all and you can't easily access to EngineerMode !!
Fortunately, still we can enable it
Note: If your phone model is NE2215 i recommend you to convert it to NE2213 with OPLocalUpdate app as NE2213 supports more 4G bands
0- Extract stock boot.img from payload.bin
Download one of below Full ROMs:
[NE2213] OxygenOS 13.1.0.522(EX01)
[NE2213] OxygenOS 13.1.0.521(EX01)
[NE2213] OxygenOS 13.1.0.520(EX01)
[NE2213] OxygenOS 13 C.30
[NE2213] OxygenOS 13 C.26
[NE2213] OxygenOS 13 C.22
[NE2213] OxygenOS 13 C.21
[NE2213] OxygenOS 13 C.20
[NE2213] OxygenOS 13 C.19
[NE2213] OxygenOS 13 C.17 (Android 13 Beta 2)
[NE2213] OxygenOS 12 A.15
[NE2213] OxygenOS 12 A.12 (Android 12 Rollback)
You can find payload.bin in Full ROM zip file
Use payload_dumper to extract boot.img
Code:
python3 payload_dumper.py --images boot payload.bin
Another option to doing this is FastbootEnhance which is a windows GUI app
1- Prepare your PC
Unzip Platform-Tools (You should add the directory path to "Environment Variables > System variables > Path")
Spoiler: Verify "Platform-Tools" installation
Check if you installed platform tools correctly:
Search for cmd, right click on it and select "Run as administrator"
Type "adb --version" and hit the enter button
If the output shows adb version that means you installed platform tools correctly
Install Qualcomm USB Drivers
Install QPST
2- Prepare your phone
Enable "Developer options" (click on "Settings > About device > Version > Build number" several times)
Go to "Settings > System settings > Developer options" and enable "OEM unlocking" + "USB debugging"
Spoiler: Unlock bootloader
Connect your phone to PC in MTP mode (File Transfer)
Open cmd (Run as administrator) and type "adb reboot bootloader"
Allow USB Debugging for your PC in the phone
Now type "fastboot flashing unlock"
On your phone you should see a message about unlocking the bootloader
With volume up/down you can move between options
Select Unlock boot loader option with power button (It will wipe your data)
Done, the phone bootloader is unlock now.
Spoiler: Root access
Since you unlocked the bootloader you should enable developer options again
Install latest version of Magisk (Download apk from here)
Patch stock boot.img:
Transfer stock boot.img to your phone
Open Magisk and select install
Choose "Select and Patch a File" then click on "LET'S GO"
You can find the patched boot in "Download" directory
Transfer it to your PC
Temporary root access:
Open cmd (Run as administrator) and type "adb reboot bootloader"
Allow USB Debugging for your PC in the phone
Type "fastboot boot patched_boot.img" (change patched_boot.img to whatever your filename is)
Permanent root access:
After booting, Open Magisk and click on install again
Now select "Direct Install (Recommended)" then click on "LET'S GO"
Done, you have a permanent root access now
Note: There are some guides that suggest you a way to update with OTA when you have root access
But i don't recommend it, because it's risky and you may get into bootloop
** IGNORE OTA UPDATE while you have root access **
3- LogKit alternative
With LogKit you could bring back "VoLTE calls" and "Wi-Fi calling" to sim settings
As i mentioned before LogKit no longer works on OnePlus 10 Pro
To achieve this:
Install "VoLTEEnabler" magisk module and reboot
Now you should see the options in "Settings > Mobile network > SIM 1"
4- EngineerMode alternative
With EngineerMode we could enable "Full-port switch" to working with PDC
By root access you can achieve this easily:
1- Connect your phone to PC in MTP mode
2- Open cmd and type:
Code:
adb shell
3- Switch to root user (For first time you need to grant root access to adb on your phone) :
Code:
su
4- Enable Full-port switch:
Code:
setprop sys.usb.config diag,diag_mdm,qdss,qdss_mdm,serial_cdev,dpl,rmnet,adb
5- Last step
Open PDC app (It's included in QPST)
Open device dropdown and select your phone
Spoiler: Skip this if you can find "Commercial-DT-VOLTE"
Find "Oversea-Commercial_DS" or "Common-Commercial" and make sure both Sub0 and Sub1 are Inactive (for me both were Inactive by default)
Find "Commercial-DT-VOLTE" and Active it for both Sub0 and Sub1 (right click on it > SetSelectedConfig > click on Sub0 ... do the same for Sub1 ... now both are Pending, click on Activate)
BOOM! you can see "VoLTE" icon on your status bar
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Note: You should repeat steps 4 and 5 after each reboot
Anyway, it's better than nothing
If someone found a permanent way please share it with the community
[Edit] Just one more step:
Remove the default profile ("Oversea-Commercial_DS" or "Common-Commercial") to keep VoLTE active after device reboot
(Thanks to @ash083)
>> Final word
This is my first and last OnePlus phone!
OnePlus completely destroyed OxygenOS (Say hi to MiUi [ColorOS] by OnePlus [OPPO] !!!)
Almost 99% people buy OnePlus to enjoy stock android experience with a bunch of customization options.
For me OnePlus is dead.
I will buy google pixel 7 pro next year and don't let any of my family member or my friends buy from this FAKE BRAND (OnePlus) !!!
If this topic was useful for you press the thanks button
Hi
Followed everything but never got the voLTE icon on the statusbar
Gunsmoke_79 said:
Hi
Followed everything but never got the voLTE icon on the statusbar
Click to expand...
Click to collapse
Dude, first make sure your carrier supports VoLTE ...
Install "5G Only" app:
5G Only - Android 11 Compatibl - Apps on Google Play
Change your network mode to 5G only (NR only)
play.google.com
You need to check "Voice Service" and "Voice Network Type" values.
Here is mine
As you can see:
Code:
Voice Service: In Service
Voice Network Type: LTE
Guys, I have bad news, since "1 September" SecrecyAutoUnlocker stopped working as other users reported here
I just do a reboot today and damn !! No VoLTE again !!
SecrecyAutoUnlocker no longger works for me too
Nice job OPPO (OnePlus) !!!
No need to use SecrecyAutoUnlocker if you're rooted.
QPST port can be opened with adb command
setprop sys.usb.config diag,diag_mdm,qdss,qdss_mdm,serial_cdev,dpl,rmnet,adb
not sure about PDC but I use efsTools and efs explorer to enable volte.
Also, engineermode is still accessible with this magisk module I made. It doesn't require that decrypt tool. Flash this module, reboot and type *#649010# to open ports. And btw Engineermode's main activity is *#36446337#
6addri said:
No need to use SecrecyAutoUnlocker if you're rooted.
QPST port can be opened with adb command
setprop sys.usb.config diag,diag_mdm,qdss,qdss_mdm,serial_cdev,dpl,rmnet,adb
not sure about PDC but I use efsTools and efs explorer to enable volte.
Also, engineermode is still accessible with this magisk module I made. It doesn't require that decrypt tool. Flash this module, reboot and type *#649010# to open ports. And btw Engineermode's main activity is *#36446337#
Click to expand...
Click to collapse
Thanks!
With root access we don't need EngineerMode at all
6addri said:
No need to use SecrecyAutoUnlocker if you're rooted.
QPST port can be opened with adb command
setprop sys.usb.config diag,diag_mdm,qdss,qdss_mdm,serial_cdev,dpl,rmnet,adb
not sure about PDC but I use efsTools and efs explorer to enable volte.
Also, engineermode is still accessible with this magisk module I made. It doesn't require that decrypt tool. Flash this module, reboot and type *#649010# to open ports. And btw Engineermode's main activity is *#36446337#
Click to expand...
Click to collapse
Hey 6addri yes please share your method!
Thanks
Gunsmoke_79 said:
Hey 6addri yes please share your method!
Thanks
Click to expand...
Click to collapse
OP edited
Check it again
I managed to enable VoLTE on OOS13 OB 2
Thanks to @6addri
Is this working for 9 pro?
vigorito said:
Is this working for 9 pro?
Click to expand...
Click to collapse
Probably yes
On 9pro with a familiar dial code there is no logkit and engeer. mode too,they remove it ,so what are the steps then for 9pro (LE2123)
vigorito said:
On 9pro with a familiar dial code there is no logkit and engeer. mode too,they remove it ,so what are the steps then for 9pro (LE2123)
Click to expand...
Click to collapse
You need unlocked bootloader + root access (check 9 Pro forum)
Other steps should be same as 10 Pro
Already start to working on that,so after i finish unlock b./root access, i should skip rom flashing and start from step prepare your pc i mean its allready prerared skipping flashing rom step 0,i just dont get this step for "Environment Variables > System variables > Path") do i have to unzip platform tools to the path you wrote or i have to do something else
vigorito said:
Already start to working on that,so after i finish unlock b./root access, i should skip rom flashing and start from step prepare your pc i mean its allready prerared skipping flashing rom step 0,i just dont get this step for "Environment Variables > System variables > Path") do i have to unzip platform tools to the path you wrote or i have to do something else
Click to expand...
Click to collapse
You need "adb" + "fastboot" and both are required for rooting
So i think you already have these (if you didn't use a wrapped tool for rooting)
To confirm this type:
"adb --version"
"fastboot --version"
In cmd, you should see adb and fastboot version.
i figure out variable settings path,i have working adb,and i can boot into bootloader with "adb reboot bootloader" command (locked) but im having problem after i type "fastboot devices" in cmd not showing device id,but command "adb devices" showing device id hm
vigorito said:
i figure out variable settings path,i have working adb,and i can boot into bootloader with "adb reboot bootloader" command (locked) but im having problem after i type "fastboot devices" in cmd not showing device id,but command "adb devices" showing device id hm
Click to expand...
Click to collapse
You should open cmd with admin access (Run as administrator)
i always do that
i use command adb reboot bootloader,phone get into fastboot mode and when i send command fastboot oem unlock its just says waithing for any device,usb debb. is ON and oem unlcok is ON,qualcom drivers are installed its all good
I tried using the magisk module, and in the SIM1 settings I have VoWifi enabled (with preference), but it does not work at all. The icon does not show in the status bar, and when I turn off VoLTE, calls do not work. Is this module known to not work on A13?
EDIT: In the 5G Only app, under IMS status I see that Voiceover WiFi is unavailable (LTE is available). How do I enable it? Contact my carrier?
Arnav74 said:
I tried using the magisk module, and in the SIM1 settings I have VoWifi enabled (with preference), but it does not work at all. The icon does not show in the status bar, and when I turn off VoLTE, calls do not work. Is this module known to not work on A13?
EDIT: In the 5G Only app, under IMS status I see that Voiceover WiFi is unavailable (LTE is available). How do I enable it? Contact my carrier?
Click to expand...
Click to collapse
This topic isn't about VoWiFi
Also my carrier doesn't support VoWiFi, so i can't test it, sorry!

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