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Mi 3 MSM8974PRO-AB -- VoLTE possible?

Hello,
I've Mi 3 with MSM8974PRO-AB chipset which, I suppose, can support LTE and VoLTE.
The latest MIUI with Marshmallow doesn't even show LTE in network options. Is there any hack or custom firmware like CM which can enable VoLTE?
Any help, please?
Thanks!

volte supoorted custom rom for nexus 6 [in india]

Does any of the custom roms developed for nexus 6 so far support VOLTE in india? [Jio/Airtel/vvodafone/Idea etc.]

pinakini said:
Does any of the custom roms developed for nexus 6 so far support VOLTE in india? [Jio/Airtel/vvodafone/Idea etc.]
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As it is not part of AOSP then most likely not. LTE is purely a data only connection for most of the world so you will be hard pressed to find one that does support it.

There have been other threads on the topic. This isn't something a custom ROM can solve. The problem with the N6 is that neither the US nor the international versions have band 40, which I believe is needed for VoLTE in India due to bandwidth. Otherwise, Jio would have labeled the N6 as VoLTE compatible.
If you want VoLTE and live in India, the N6 is very likely not the device for you.

The pure Nexus project 7.1.2 and S.i.x oreo rom have VOLTE and otg support and also are pretty stable.

VOLTE in Jio network for Nexus 6 ?
aditya.singh said:
The pure Nexus project 7.1.2 and S.i.x oreo rom have VOLTE and otg support and also are pretty stable.
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Hi Aditya, Have you achieved VOLTE in Jio network ? for Nexus 6 ? If you have did it through Custom ROM, can you please say its description, so that I will also follow and get Jio VOLTE in Nexus 6 ?
Or confirm that the below ROM version supports VOLTE Jio for Nexus 6:
https://forum.xda-developers.com/nexus-6/development/rom-pure-nexus-project-t3148214

No custom rom support JIO Volte in Nexus 6
sharankumar420 said:
Hi Aditya, Have you achieved VOLTE in Jio network ? for Nexus 6 ? If you have did it through Custom ROM, can you please say its description, so that I will also follow and get Jio VOLTE in Nexus 6 ?
Or confirm that the below ROM version supports VOLTE Jio for Nexus 6:
https://forum.xda-developers.com/nexus-6/development/rom-pure-nexus-project-t3148214
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I have tried the custom ROMs Pixel-experience, Nitrogen, crDroid. None of the custom ROM would enable VOLTE for JIO network. Just an FYI for ppl looking for this.

sharankumar420 said:
I have tried the custom ROMs Pixel-experience, Nitrogen, crDroid. None of the custom ROM would enable VOLTE for JIO network. Just an FYI for ppl looking for this.
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Yes, the devs have given up getting the IMS to work on Pie. IMS is needed for VoLTE and WiFi-calling. So those two things will probably never work on any Pie-rom.

Try aquari os
sharankumar420 said:
I have tried the custom ROMs Pixel-experience, Nitrogen, crDroid. None of the custom ROM would enable VOLTE for JIO network. Just an FYI for ppl looking for this.
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Try this it claims to support volte n wi fi calling but not sure whether it will wor in India on Jio.
https://forum.xda-developers.com/nexus-6/development/rom-aquarios-8-1-0-live-support-volte-t3782084

Aquaris doesn't enable VOLTE for Jio
Rauldcool said:
Try this it claims to support volte n wi fi calling but not sure whether it will wor in India on Jio.
https://forum.xda-developers.com/nexus-6/development/rom-aquarios-8-1-0-live-support-volte-t3782084
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Hey @Rauldcool Thanks for your suggestion & support. I have tried Aquarios ROM. It has the option to enable VOLTE Provisioned flag in Mobile Network settings, but unfortunately, Jio VOLTE doesn't work.

No VoLTE on Xiaomi.eu and Globe Miui ROMs

Hi guys
I flashed both globe miui and Xiaomi.eu ROM on my Mi5 is using TWRP. Both were based on 7.2.9 beta build. Everything went really well with zero bloats ROM was fluid but there was no VoLTE on both ROMs i tried every possible thing I could like apn , rebooting , swapping SIM cards but nothing worked. Can anyone help me out?

On my global beta ROM, the VoLTE option only appears when I set my location to South Korea but not Taiwan, presumably because the ROM enables the option only for regions where telco's have it. Perhaps you can try changing your location to another region too.

Well , i have the VoLTE switch icon but that toggle doesn't works as there's no sign of VoLTE at all

chan200606 said:
On my global beta ROM, the VoLTE option only appears when I set my location to South Korea but not Taiwan, presumably because the ROM enables the option only for regions where telco's have it. Perhaps you can try changing your location to another region too.
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Hi @chan200606 - your "fix" worked!
It was driving me nuts - EU ROM beta for Mi 6 was working, but the "new" official, global stable for Mi 6 was not... Switching the location to South Korea did the trick...
Since this appears to be a setting, do you have any clue where to edit it? I tried this but mine was already showing "0".

i have 7.9.14 xiaomi.eu version, it gives VoLTE on T-Mobile in Germany but it doesn´t work, as i don´t hear anything

Need Radio / Firmware with VoLTE Support

As title said, anyone can share OnePlus 3T , modem/radio and firmware which supports VoLTE in INDIA i.e for JIO..
Need it urgently , I have USA (North America) variant , currently VoLTE is not supported but 850 band is picking up fine.. Need help in this..

I got the 3T (US) on Tuesday and after upgrading it to Nougat, I could not get VoLTE and the SMSC configuration to work.
I tried different roms all with the same result. Going back to MM/OOS 3.5.4, VoLTE and SMSC settings did work instantly again.
So the firmware/modem is obviously broken.
Did you try a MM rom/firmware?
Later: Oneplus support stated the following on my report that Nougat OOS 3.5.4 breaks VoLTE, Wifi calling and SMSC setup:
"I highly suggest staying with the 3.5.4 update as of this moment. Our developer team is still working on it and we will make sure that the next update will fix these bugs."

First Android mobile after years of iOS - bitter experience. Such well talked about mobile and a pain in the a**. How can an upgrade plug a capability already available and make it a brick?

I had trouble with the OOS 4.0.3 and went back to the MM firmware, yesterday installed the 4.1.3 and no modem problems, LTE, VoLTE and VoWIFI in TMO US network run fine.

In PL we can only dream about TMobile delivering VoLTE to OnePlus devices :^)

Looking for Working VoLTE Mod for Unlocked Note 9

Shortcut Master was a Great tool in order to turn on VoLTE/Calling Plus Beta on Sprint.
After Upgrading from the Note 8 to the Note 9 I Loved being able to be on a Phonecall and being able to use the Internet.
All was fine until Android Pie Update.
The same day I downloaded the OTA Android 9/Pie Update and Installed it on My Unlocked Samsung Galaxy Note 9, VoLTE Stopped and was disabled.
I have been looking for a Guaranteed Working MOD to Pie in order to get VoLTE to work.
Is there Anyone that Can Help with Detailed Instructions with Screenshots in order to Help in the Process of getting VoLTE Working on the Note 9 running Android Pie?

The only way is to flash back to Oreo. It's what I did with my unlocked Note 9, and Shortcut Master allowed me to retain data whole on a call. This is essential since I'm never near WiFi at work these days.

trevorus said:
The only way is to flash back to Oreo. It's what I did with my unlocked Note 9, and Shortcut Master allowed me to retain data whole on a call. This is essential since I'm never near WiFi at work these days.
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I Downgraded and Blocked Automatically Download Updates.

i have a unlocked sprint Note 9 & after pie update there is no VoLTE now. (I am trying to use it on JIO network in India).
Is there a way to Install Other Global ROM instead of Sprint ROM so that VoLTE can naturally be activated & not hidden or disabled ?

hypermaster said:
i have a unlocked sprint Note 9 & after pie update there is no VoLTE now. (I am trying to use it on JIO network in India).
Is there a way to Install Other Global ROM instead of Sprint ROM so that VoLTE can naturally be activated & not hidden or disabled ?
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The latest U1 stock rom worked for me. Volte is on. On Jio note 9 snapdragon Usa version.

nimms said:
The latest U1 stock rom worked for me. Volte is on. On Jio note 9 snapdragon Usa version.
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How can you tell if VoLTE is on? For U1 stock firmware, there is no VoLTE in settings.

nimms said:
The latest U1 stock rom worked for me. Volte is on. On Jio note 9 snapdragon Usa version.
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My phone is SM-N960U1. Will the Jio/Airtel/Vodafone Volte work in India?

Shortcut to activity com.android.settings.radioInfo

gruuvin said:
How can you tell if VoLTE is on? For U1 stock firmware, there is no VoLTE in settings.
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No settings to tinker. I was using jio volte app first. After 2 days, native volte was active after an update. (April security version).
jasonjdm said:
My phone is SM-N960U1. Will the Jio/Airtel/Vodafone Volte work in India?
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Mine is working on jio. On U1 firmware.

nimms said:
No settings to tinker. I was using jio volte app first. After 2 days, native volte was active after an update. (April security version).
Mine is working on jio. On U1 firmware.
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Found.
You can actually access settings for VoLTE.
I posted about it two posts ago.

hd calling note 9
gd761 said:
Shortcut Master was a Great tool in order to turn on VoLTE/Calling Plus Beta on Sprint.
After Upgrading from the Note 8 to the Note 9 I Loved being able to be on a Phonecall and being able to use the Internet.
All was fine until Android Pie Update.
The same day I downloaded the OTA Android 9/Pie Update and Installed it on My Unlocked Samsung Galaxy Note 9, VoLTE Stopped and was disabled.
I have been looking for a Guaranteed Working MOD to Pie in order to get VoLTE to work.
Is there Anyone that Can Help with Detailed Instructions with Screenshots in order to Help in the Process of getting VoLTE Working on the Note 9 running Android Pie?
Click to expand...
Click to collapse
I found a way to temporarily get it to work. have to do each time you wanna make a call or recieve a call in hd. If you turn on wifi calling and wifi. Make a call and turn wifi of. Hd calling and data will stay enabled for that call. have to do each each time you call. Must have an active internet connection when enabling wifi.