VOLTE Issue with One Plus 8 Pro 11.0.1.1.IN11AA Update

[emremutlu]

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?

 

[mohammed2m2]

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

 

[emremutlu]

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

 

[mohammed2m2]

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

https://docs.google.com/document/d/1ejLtVQTpXZaB5XGNOBRI5dZV4GpuCKtHOGo6v49hWdY/edit?usp=sharing


https://youtu.be/v7zUZhxNmPw

 

[emremutlu]

https://docs.google.com/document/d/1ejLtVQTpXZaB5XGNOBRI5dZV4GpuCKtHOGo6v49hWdY/edit?usp=sharing


https://youtu.be/v7zUZhxNmPw

Yesss. With your guide i made it. Thank you very much.

 

[RocknR]

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...