Database Users

Note 5 Indian users (SM-N920G) (How to use Jio Sim VoLTE calls)

I have tested this method on my N920G and it worked for me so don't know about other devices
As most of the Indian owners are aware of Jio network Preview offer for samsung flagships phone i.e. unlimited LTE , unlimited VOLTE calls , unlimited sms for 3 months. But there is an issue with the samsung latest update that does not allow most of the users to use Jio sim for making calls using stock dialer also they are getting 4g written on status bar and have to use Jio Join app for making calls and sms.
but i have found a solution to this issue and that is you have to downgrade your firmware to DD3 in order to get VoLte working and then u can update via OTA once it starts working.
All you got to do is flash
https://mega.nz/#!Cc82GTgb!N8ThVCFwFq0hDj4cqPHuT6Biajn9x116yf1gnhV8eQA
via odin and be CAUTIOUS AND TAKE A BACKUP BEFORE AS IT WILL WIPE YOUR INTERNAL STORAGE AND DATA.
i found this solution and wanted to share it with the community
also not much experience in writing threads so bear with me.....

karan2012 said:
I have tested this method on my N920G and it worked for me so don't know about other devices
As most of the Indian owners are aware of Jio network Preview offer for samsung flagships phone i.e. unlimited LTE , unlimited VOLTE calls , unlimited sms for 3 months. But there is an issue with the samsung latest update that does not allow most of the users to use Jio sim for making calls using stock dialer also they are getting 4g written on status bar and have to use Jio Join app for making calls and sms.
but i have found a solution to this issue and that is you have to downgrade your firmware to DD3 in order to get VoLte working and then u can update via OTA once it starts working.
All you got to do is flash
https://mega.nz/#!Cc82GTgb!N8ThVCFwFq0hDj4cqPHuT6Biajn9x116yf1gnhV8eQA
via odin and be CAUTIOUS AND TAKE A BACKUP BEFORE AS IT WILL WIPE YOUR INTERNAL STORAGE AND DATA.
i found this solution and wanted to share it with the community
also not much experience in writing threads so bear with me.....
Click to expand...
Click to collapse
I had the same issue.. flashing this firmware now.. fingers crossed. will let u know if it worked for me. Thanks for posting this. :good:
Edit - Flashed the firmware and now it shows the "Volte" symbol at the top.. but system prompting for the new upgrade, will i lose it again if i do the OTA upgrade? please confirm.

lastfugi1979 said:
I had the same issue.. flashing this firmware now.. fingers crossed. will let u know if it worked for me. Thanks for posting this. :good:
Edit - Flashed the firmware and now it shows the "Volte" symbol at the top.. but system prompting for the new upgrade, will i lose it again if i do the OTA upgrade? please confirm.
Click to expand...
Click to collapse
No No just upgrade it
You won't face any issues

Can you tell me step by step procedure.

GNEGI said:
Can you tell me step by step procedure.
Click to expand...
Click to collapse
first of all check your device model by going in settings-about device
if its N920G
then download the firmware i have mentioned above and take backup of all ur files as all the data will get deleted.
then install odin in your pc and in your device go to settings- about device - software info- then click on build number 7 times it will enable developer mode
in developer mode switch on usb debugging and OEM unlocked
then switch off the device and press power home and volume down button it will take you to the download mode and then follow on screen instructions
once you are able to see your device in odin click on ap tab and select the file you downloaded and click on start wait till the process get complete and it will show pass

karan2012 said:
No No just upgrade it
You won't face any issues
Click to expand...
Click to collapse
up and running on Volte.. thanks bro.:good:

I had not rooted my phone and I was getting VOLTE already the moment I inserted the sim in the phone. The speed is freaking amazing.

I have the latest update and volte works great. But i want to know it is possible to change lta band? Service Menu open but the code for lte band selection don't work. It seems it is disabled in update.

Sir,
I have N9208 dual sim note 5 bought in Malaysia. It is not showing volte with my jio sim but 4g data is working great. Will this firmware work with my dual sim version.
Please help.
Thanks in advance.
Regards,
Tarak

beingtarak said:
Sir,
I have N9208 dual sim note 5 bought in Malaysia. It is not showing volte with my jio sim but 4g data is working great. Will this firmware work with my dual sim version.
Please help.
Thanks in advance.
Regards,
Tarak
Click to expand...
Click to collapse
I don't think so because this firmware is specifically for N920G devices but you can head over to DR.Ketan's thread as he had got it working on his rom

Hi i bought my note 5 in dubai, its SM- N920C, what should i do so that i can enjoy volte calling without jiojoin app?? Dada is working nice but for calling i need to use jiojoin

superiority said:
Hi i bought my note 5 in dubai, its SM- N920C, what should i do so that i can enjoy volte calling without jiojoin app?? Dada is working nice but for calling i need to use jiojoin
Click to expand...
Click to collapse
you can either try my rom or dr Ketan m8 rom both will have lte working..

Update The Download Link
Update The Download Link

If someone wants sm-n9208 to show Volte pl follow the link:
https://forum.xda-developers.com/note5/general/volte-fix-indian-jio-users-video-t3501597
Follow the method given in the link and you are sure of getting Volte. You can use Jio without Jiovoice.

Volte support for sm920p
Guys plz help me

Hi team, I want to use Jio with SM N920V (Verizon), can i follow same steps mentioned above. Samsung care guys say it may brick the phone.. Please help!

cani flashed into n920c to n920g

How can I enable VoLTE facility in my Galaxy Note 5
Dear Karanji
How can I enable VoLTE facility in my Galaxy Note 5 Model SM-N920T to use Reliance Jio services ? Pl Help

[India] Any Axon7 users from India?

Hi guys,
So if any axon7 users are in India, I have a question regarding Volte calling.
Does Volte calling work in India on the stock ROM, specifically does it work with jio?
I had the Chinese version B07 and Volte calling did not work. Flashed lineage OS and Volte started working.
Now that nougat is out and working properly, I want to go back to stock but only if Volte works.

Vurio said:
Hi guys,
So if any axon7 users are in India, I have a question regarding Volte calling.
Does Volte calling work in India on the stock ROM, specifically does it work with jio?
I had the Chinese version B07 and Volte calling did not work. Flashed lineage OS and Volte started working.
Now that nougat is out and working properly, I want to go back to stock but only if Volte works.
Click to expand...
Click to collapse
Looks like you need to update the APN settings. Try contacting customer care and have them send it to you.

I'm on the same boat, gonna try upgrading to 7.1.1 and see what happens

Tried with RR, volte works, went to stock 7.1.1, volte doesn't work. So it is a software thing, maybe a dev can help fix it?

n1234d said:
Tried with RR, volte works, went to stock 7.1.1, volte doesn't work. So it is a software thing, maybe a dev can help fix it?
Click to expand...
Click to collapse
From my research volte is a software upgrade. Technically any phone which supports 4g can support 4g after manufacturer updates. Volte also depends on the Telecom provider, the Telecom provider has to enable volte on that particular device for it support volte calling.
For most users this is not an issue, because even if Volte is not enabled they can seamlessly switch between 3g and 4g.
The problem with jio is that it is a 4g only network so there is no switch, if your device is not supported then you have to use their ****ty app, jiojoin or something like that.
So unless jio endless volte on the axon7 we are stuck with using jio join or on a stock based ROM.
Then again I may be wrong about the whole thing :laugh:

I found another possible solution
http://forum.flymeos.com/thread-7052-1-1.html

Yes from today started working magically.. On stock 7.1.1 Axon 7 USA Model.. All the best

Are you able able to make calls on VOLTE. Even i have Axon 7 US model and running android 7.1.1. But i am unable to place calls over VOLTE

prudviraj said:
Yes from today started working magically.. On stock 7.1.1 Axon 7 USA Model.. All the best
Click to expand...
Click to collapse
It does not work for me. I installed stock 7.1.1 and volte did not work. I called customer care, they were spectacularly unhelpful. I tried a bunch of other tricks but it would not work, now I am back on lineage OS and it's working fine.

ravinder reddy said:
Are you able able to make calls on VOLTE. Even i have Axon 7 US model and running android 7.1.1. But i am unable to place calls over VOLTE
Click to expand...
Click to collapse
Try the solution posted in the earlier post. I was unable to make it work but maybe you will have better luck with the us model.

Magic has happened...
I have tried the procedure mentioned in the above URL, but nothing was working. I was unable to add the APN settings as well as unable to enter in to the engineering mode. I have resetted existing APN settings and added the previous jionet APN settings.
Finally lost hope and made my self to use the Jio with Jio 4G Voice application.
But the Magic has happened here and my Axon 7 fulfilled all requirements this time even with VoLTE .
Yes VoLTE started working . Deleted Jio 4G Voice.
Don't know how but try with re inserting SIM cards and resetting the APN Settings.

ravinder reddy said:
I have tried the procedure mentioned in the above URL, but nothing was working. I was unable to add the APN settings as well as unable to enter in to the engineering mode. I have resetted existing APN settings and added the previous jionet APN settings.
Finally lost hope and made my self to use the Jio with Jio 4G Voice application.
But the Magic has happened here and my Axon 7 fulfilled all requirements this time even with VoLTE .
Yes VoLTE started working . Deleted Jio 4G Voice.
Don't know how but try with re inserting SIM cards and resetting the APN Settings.
Click to expand...
Click to collapse
Are you telling me that volte suddenly started working?
I have tried resetting, reinserting sim cards, factory reset, nothing seems to work.
This is truly bizzare.

Yes i am able to make VOLTE calls on my US axon 7 without internet or jio 4g app..
ravinder reddy said:
Are you able able to make calls on VOLTE. Even i have Axon 7 US model and running android 7.1.1. But i am unable to place calls over VOLTE
Click to expand...
Click to collapse
Yes i am able to make VOLTE calls on my US axon 7 without internet or jio 4g app.. but my dads same phone doesnt work.. very strange phenomenon bro... im not able to make it out. i tried axon 7 toolkit and tried to unlock bootloader and followed instructions.. then before flashing it went black screen like it was supposed to go.. then i had some work and unplugged immediately on the black screen and rebooted to normal..
All of a sudden jio4g calling app said on the top.. " Your phone supports VOLTE please use standard dailer" holy cow i uninstalled jio 4g app and was able to make calls ever since.. all the best..:angel:

I have a2017g model, and i am on android 7.0 nougat. Play store issue is there. I have downloaded 7.1.1 official update manually but does not seem to get install on my device, also the tried fota update which is 456mb, that also doest not get installed, saying update failed, phone not supported ??

Axon 7 can be used on Jio VoLTE now.
with simple procedures.
anyone need help let me know..
Ill write small tut once i have free time.

shaikhsadik said:
Axon 7 can be used on Jio VoLTE now.
with simple procedures.
anyone need help let me know..
Ill write small tut once i have free time.
Click to expand...
Click to collapse
I'd love to know how you made it work.
Sent from my ZTE A2017U using Tapatalk

Put only Jio sim in slot 1.
Delete all APN.
go to dialer
press *#*#4636#*#* > go to phone information > Select LTE ONLY> scroll down and turn ON Wifi Calling and Video Calling. exit by pressing home button..
GO to APN and see is JIONET APN is there if not.. make new APN .. Name JIONET. Type JIONET
exit..
Reboot. and see if calling works..

shaikhsadik said:
Put only Jio sim in slot 1.
Delete all APN.
go to dialer
press *#*#4636#*#* > go to phone information > Select LTE ONLY> scroll down and turn ON Wifi Calling and Video Calling. exit by pressing home button..
GO to APN and see is JIONET APN is there if not.. make new APN .. Name JIONET. Type JIONET
exit..
Reboot. and see if calling works..
Click to expand...
Click to collapse
I tried the same steps but in a different order earlier, but it didn't work for me then. I'm back on 6.0 now. Would any other member here be kind enough to try this and let me know if it works for you? Thanks
Sent from my ZTE A2017U using Tapatalk

n1234d said:
I tried the same steps but in a different order earlier, but it didn't work for me then. I'm back on 6.0 now. Would any other member here be kind enough to try this and let me know if it works for you? Thanks
Sent from my ZTE A2017U using Tapatalk
Click to expand...
Click to collapse
U sure tried it using only one sim in phone..
I have 2 A7 phones.. and its working on both..

shaikhsadik said:
U sure tried it using only one sim in phone..
I have 2 A7 phones.. and its working on both..
Click to expand...
Click to collapse
I tried it with a single sim only, but in a different order. Now I'm back to 6.0 so can't check currently. Waiting for someone else to also confirm it working for them
Sent from my ZTE A2017U using Tapatalk

Airtel Volte [How to Enable It]

Hey guys, I have finally arrived at a proper result after a long time.
Airtel supports Volte in all areas except J&k. , as mentioned on their website: https://www.airtel.in/volte/
Note: First u need to have an Airtel 4g sim along with a 4g/3g data plan.
So the steps to activate Volte is simple :
1. Go to the airtel Volte website given above.
2. Check for compatible devices
Note: You will be needing any one of the compatible devices listed by Airtel on their page.
3. Now you have to put your sim in the device [ compatible one ] and they reset the network settings of the device.
4. Now restart the phone and wait for some time.
5. After doing so you would get a link from Airtel.
Note: Something similar to this - Please open the following link to get manual instructions for service settings.
http://10.89.22.101:9080/SADM/Manualgrp=Auto+Device+Detection&rcId=4&msisdn=%2B91<airtelmobilenumber>&dev=Xiaomi+RedmiNote5Pro
6. After clicking on the link, you have to restart the device.
7. Airtel Volte will be enabled, now you can put it back in your Zuk Z2 and Volte is enabled.
And for those who want to know what rom I am running on,
Rom: Jaguar version January 10
Gapps: Mind the gapps
magisk: Installed
Hit the thanks button if I helped you.:good:

It's working guys.

I used galaxy j7 which is supported device. I waited for 15 mins and tried rebooting even i didn't get volte or sms mentioned above, Then I called customer care and asked about volte ,then they told your device is volte supported and keep using your device to get volte after 2 mins i got volte in j7 then i switched to z2 plus , volte is working now in z2

akshay pro said:
http://10.89.22.101:9080/SADM/Manualgrp=Auto+Device+Detection&rcId=4&msisdn=%2B91<airtelmobilenumber>&dev=Xiaomi+RedmiNote5Pro
Click to expand...
Click to collapse
Link not working for me.

mGforCe said:
Link not working for me.
Click to expand...
Click to collapse
Bro this is the link, ,that I got , u would also get a same one once you follow the above steps

I ve got VoLTE icon when I updated to aex 6.3, however when I make calls network falls back to 3G, which isnt supposed to happen. Anyone else?

Bro i Have airtel sim my z2 plus didnt compatible with volte services as this the airtel customer care employee says im on zui 2.0 help me out
Also i have very poor signal in my phone already changed various basband versions but nothing happened help me plz.

It worked for me by following the process ???????

Cyberwarrior17007 said:
Bro i Have airtel sim my z2 plus didnt compatible with volte services as this the airtel customer care employee says im on zui 2.0 help me out
Also i have very poor signal in my phone already changed various basband versions but nothing happened help me plz.
Click to expand...
Click to collapse
ok to solve your issue, all you gotta do is follow this website: https://forum.xda-developers.com/showthread.php?t=3695877 get the latest version of Indian stock rom guess (zui 2.5) and install that using qfil.
now set it up and enable volte on the device. Then follow the steps given above. Happy Flashing :good:

No matter what I try, wait for similar message as given in #1 or call customer care for volte settings they are just providing me with Instructions on how to enable VoLTE in settings.
I'm not able to get beyond that point i.e., not able to receive the link to enable VoLTE on my sim card.

I didn't got any link but kept my sim in poco f1 for 4hrs it's worked for me....
Now i can able to use volte in Z2 Plus....

anirudh.siddula said:
No matter what I try, wait for similar message as given in #1 or call customer care for volte settings they are just providing me with Instructions on how to enable VoLTE in settings.
I'm not able to get beyond that point i.e., not able to receive the link to enable VoLTE on my sim card.
Click to expand...
Click to collapse
which device are you using as an alternative to enable the volte on your sim?

LAKSHMI SAINATH said:
I didn't got any link but kept my sim in poco f1 for 4hrs it's worked for me....
Now i can able to use volte in Z2 Plus....
Click to expand...
Click to collapse
Sorry for the inconvenience u had to face during the process, but happy u got volte

Hi,
Can any one help me.
Airtel volte is working for me in first sim tray.
Problem is it is working only for 2 mins after that is directly going to 2 g network, then again i need to reboot/ aeroplane mod/ changing network to 3g and then to 4g to get volte. almost all roms are having issue for me. Cana may one please provide solution for thia

skishoreraju said:
Hi,
Can any one help me.
Airtel volte is working for me in first sim tray.
Problem is it is working only for 2 mins after that is directly going to 2 g network, then again i need to reboot/ aeroplane mod/ changing network to 3g and then to 4g to get volte. almost all roms are having issue for me. Cana may one please provide solution for thia
Click to expand...
Click to collapse
Type *#*#4636#*#* in dialpad
Select phone info then in network type select 4g or lte only

JV Spartacus said:
Type *#*#4636#*#* in dialpad
Select phone info then in network type select 4g or lte only
Click to expand...
Click to collapse
Hi, thanks for your help.
It is working, but after changing to LTE, I unable to call to anyone / unable to receive calls.
Please help me

skishoreraju said:
Hi, thanks for your help.
It is working, but after changing to LTE, I unable to call to anyone / unable to receive calls.
Please help me
Click to expand...
Click to collapse
You are not getting volte that's y
Put sim in sim1 slot

JV Spartacus said:
You are not getting volte that's y
Put sim in sim1 slot
Click to expand...
Click to collapse
Sim is slot1 only.
I have followed what you have said, I have kept LTE only in phone info after that I am getting volte with out any issue.
Now issue is after changing phone info to LTE I am unable call / receive calls

skishoreraju said:
Sim is slot1 only.
I have followed what you have said, I have kept LTE only in phone info after that I am getting volte with out any issue.
Now issue is after changing phone info to LTE I am unable call / receive calls
Click to expand...
Click to collapse
Volte is lost
You will have to qfil stock if volte is lost

JV Spartacus said:
Volte is lost
You will have to qfil stock if volte is lost
Click to expand...
Click to collapse
I think you did not understand my problem,
OK no problem, thanks for your suggestion

Oxygen OS 11 - No PDC and QPST connection

Hi,
After successful update to Android 11 on Oneplus 8 Pro, I cannot find the modem in PDC tool or QPST as before.
The device was described in Windows devices list as IN2012 without any drivers so I installed manually latest Qualcomm drivers and chose Android Modem 9020 which was recommended by some guys using beta. Unfortunately, I still cannot change modem settings via PDC.
I don't have a root on my phone and would like to stay that way.
Do you have any new guide for Android 11 how to acquire that functionality for changing modem in PDC? Thanks

Hi PDC does not detect my oneplus8 pro running android 11 .. everyone seems in this case, and no solution has been found yet
Envoyé de mon IN2023 en utilisant Tapatalk

That is true I have oneplus 8 pro IN2020, i used to have access to full-port switch and rndis,diag switch before oxygenos 11, now after updating to oxygenos 11, no longer i can access it my computer won't detect it anymore via PDC tool or QPST.

Maybe this isn't what you're talking about, but works fine here (stable 11.0.0).
*#801# to enable full-port switch.
Edit: tested PDC, also working.
Edit2: Missed that no root part. I am rooted and have engineermode enabled, that would probably be the difference.

Same for the IN2020 model that I am using.
Seems like Android 11 or OnePlus themselves are blocking the QPST port, and the only solution so far needs the device rooted.
https://forum.xda-developers.com/oneplus-8-pro/help/help-pdc-recognizing-phone-android-11-t4166849

I'm not rooted, have managed to get Engineer mode and QPST working, but PDC not seeing phone.... Ideas? (8 pro, OOS11)

sephstyler said:
I'm not rooted, have managed to get Engineer mode and QPST working, but PDC not seeing phone.... Ideas? (8 pro, OOS11)
Click to expand...
Click to collapse
Would you mind sharing how you got QPST working please? Mine only says (Phone Uknown) and if I open EFS explorer its empty.

kar200 said:
Would you mind sharing how you got QPST working please? Mine only says (Phone Uknown) and if I open EFS explorer its empty.
Click to expand...
Click to collapse
i got qpst to work watching a french video but its useless for us in uae we need pdc to connect , simply changing the courier policy wont give us volte or enable 5g. i only had volte and 5g enabled on os 10 when i was able to use pdc . lost it all in beta 1 then beta 2 volte came back automatically then lost both again in beta 3

kazlow said:
i got qpst to work watching a french video but its useless for us in uae we need pdc to connect , simply changing the courier policy wont give us volte or enable 5g. i only had volte and 5g enabled on os 10 when i was able to use pdc . lost it all in beta 1 then beta 2 volte came back automatically then lost both again in beta 3
Click to expand...
Click to collapse
EDIT: I found the video if anyone else is interested. It's in french
https://www.youtube.com/watch?v=6DtH0-PZQMw

kar200 said:
EDIT: I found the video if anyone else is interested. It's in french
https://www.youtube.com/watch?v=6DtH0-PZQMw
Click to expand...
Click to collapse
Thanks a lot ! it worked for me on IN2020 OS11 ! and i was able to replace the carrier policy file, Still Struggling with PDC full port switch access.

xda9791 said:
Thanks a lot ! it worked for me on IN2020 OS11 ! and i was able to replace the carrier policy file, Still Struggling with PDC full port switch access.
Click to expand...
Click to collapse
With this Video i was also able to activate 5G but to activate Volte is necessary to use PDC as i was not able to connect the Oneplus 8T (KB2003) with my PC.
Do you know another method to activate volte? Thanks

xda9791 said:
Thanks a lot ! it worked for me on IN2020 OS11 ! and i was able to replace the carrier policy file, Still Struggling with PDC full port switch access.
Click to expand...
Click to collapse
Double Post - Delete

exthomeboy said:
With this Video i was also able to activate 5G but to activate Volte is necessary to use PDC as i was not able to connect the Oneplus 8T (KB2003) with my PC.
Do you know another method to activate volte? Thanks
Click to expand...
Click to collapse
Hi. The only solution on Android 11 is to be root and use this solution which works very well:
https://docs.google.com/document/d/1ejLtVQTpXZaB5XGNOBRI5dZV4GpuCKtHOGo6v49hWdY/edit?usp=sharing

Zayatoshi said:
Hi. The only solution on Android 11 is to be root and use this solution which works very well:
https://docs.google.com/document/d/1ejLtVQTpXZaB5XGNOBRI5dZV4GpuCKtHOGo6v49hWdY/edit?usp=sharing
Click to expand...
Click to collapse
But after using this, with root, i want to unroot and close the Bootlader ... will the changes stay in place?

Absolutely not. The only solution to relock the bootloader is to use the MSM tool. This will cause data to be erased and the bootloader to be locked. Your Oneplus will be reset to factory configuration.
automatically manipulation to activate the volte and vowifi will be lost.

kar200 said:
EDIT: I found the video if anyone else is interested. It's in french
https://www.youtube.com/watch?v=6DtH0-PZQMw
Click to expand...
Click to collapse
Yeah, that, plus https://mt-tech.fi/en/modify-sony-xperia-1-ii-lte-a-and-5g-nr-combinations/

kingdown133 said:
Same for the IN2020 model that I am using.
Seems like Android 11 or OnePlus themselves are blocking the QPST port, and the only solution so far needs the device rooted.
https://forum.xda-developers.com/oneplus-8-pro/help/help-pdc-recognizing-phone-android-11-t4166849
Click to expand...
Click to collapse
I have a rooted device, running 11.0.1.1IN11BA
The mentioned method didn't work for me.
Volte and vowifi and 5g was working perfectly before that update.
Still can't get the phone to be recognized.

kazlow said:
i got qpst to work watching a french video but its useless for us in uae we need pdc to connect , simply changing the courier policy wont give us volte or enable 5g. i only had volte and 5g enabled on os 10 when i was able to use pdc . lost it all in beta 1 then beta 2 volte came back automatically then lost both again in beta 3
Click to expand...
Click to collapse
Hello sir
how to use PDC to enable 5G in UAE ?? can you link me to a guide for that ???

GetDiz said:
I have a rooted device, running 11.0.1.1IN11BA
The mentioned method didn't work for me.
Volte and vowifi and 5g was working perfectly before that update.
Still can't get the phone to be recognized.
Click to expand...
Click to collapse
Same here. Missing my volte

Some folks in 4pda have found a solution to this.

VOLTE Issue with One Plus 8 Pro 11.0.1.1.IN11AA Update

Hello. I am using OP8P IN2020 with Global Firmware. While i am using volte without any problem with version 11.IN11AA, after updating to 11.0.1.1.IN11AA via ota, realised that volte stopped working. The volte icon disappeared. Checked settings and Volte option is still active but it doesnt work.
Tried switching to EU firmware "11.0.1.1.IN11BA" that didnt work too.
Downgraded to 11.IN11AA Stable Global version and it seems it worked. So i OTA Update to 11.0.1.1.IN11AA again and volte stopped working again.
So here is the result for me with 11.IN11AA VOLTE works. With 11.0.1.1.IN11AA and 11.0.1.1.IN11BA VOLTE does not work.
What is it about? Can i somehow fix this?

Root is required to have accsess to PDC and through it you can change the volte profile with no root your device won't be detected by PDC and nothing you can do to activate volte

So is there a guide to how to use pdc and activate volte for our device?

emremutlu said:
So is there a guide to how to use pdc and activate volte for our device?
Click to expand...
Click to collapse
https://docs.google.com/document/d/1ejLtVQTpXZaB5XGNOBRI5dZV4GpuCKtHOGo6v49hWdY/edit?usp=sharing
https://youtu.be/v7zUZhxNmPw

mohammed2m2 said:
https://docs.google.com/document/d/1ejLtVQTpXZaB5XGNOBRI5dZV4GpuCKtHOGo6v49hWdY/edit?usp=sharing
https://youtu.be/v7zUZhxNmPw
Click to expand...
Click to collapse
Yesss. With your guide i made it. Thank you very much.

Oxygen Updater
I upgraded to 11.0.11.IN11AA early this morning utilizng Oxygen Updater and my VOLTE shows it's icon up the the far right corner. Seems it's working fine. I'm sure y'all have a way to verify if it's truly working, so please have patience with me as this is all new to me. I'm a NUG (new useless guy) as we called new engineers in the Datapoint world, almost 40 years ago. You've probably never heard of that company.
Thanks for this post and thanks to all you people I'm learning so much...