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Unlocked, developer HTC A9 Android 7.0 Issues

My daughter has an unlocked HTC A9 that just got an Android 7.0 update 2 days ago. Our carrier is T-Mobile USA and when the phone had Android 6.0.1, it had VoLTE and Wi-Fi Calling features working extremely well. Now after Android 7.0 upgrade these 2 particular features are gone from the software.
Can someone with an unlocked HTC A9 on T-Mobile USA check if their VoLTE and Wi-Fi Calling options are missing as well after Nougat upgrade? Thanks in advance.

xela19115 said:
My daughter has an unlocked HTC A9 that just got an Android 7.0 update 2 days ago. Our carrier is T-Mobile USA and when the phone had Android 6.0.1, it had VoLTE and Wi-Fi Calling features working extremely well. Now after Android 7.0 upgrade these 2 particular features are gone from the software.
Can someone with an unlocked HTC A9 on T-Mobile USA check if their VoLTE and Wi-Fi Calling options are missing as well after Nougat upgrade? Thanks in advance.
Click to expand...
Click to collapse
I did have the option in settings to switch VoLTE on or off, and it does seem to be missing here. If you want to know if it is on or off, go to phone and dial *#*#4636#*#* and click on phone information. Scroll down until you see either turn off volte provisioned flag or turn on volte provisioned flag. If it says turn off volte provisioned flag that means VoLTE is on. For the Wi-Fi calling, there is an option in settings for it I believe. Go to the call tab under setting and scroll all the way down to calling accounts. In that part of settings there is settings for "internet calling". Not sure if this is what you are looking for but this is what I found
Hope it helps, and good luck

xela19115 said:
My daughter has an unlocked HTC A9 that just got an Android 7.0 update 2 days ago. Our carrier is T-Mobile USA and when the phone had Android 6.0.1, it had VoLTE and Wi-Fi Calling features working extremely well. Now after Android 7.0 upgrade these 2 particular features are gone from the software.
Can someone with an unlocked HTC A9 on T-Mobile USA check if their VoLTE and Wi-Fi Calling options are missing as well after Nougat upgrade? Thanks in advance.
Click to expand...
Click to collapse
I have an HTC A9 (oem unlocked), on T-Mobile USA.
VoLTE and Wi-Fi was not enabled by default until I manually forgot and reconnected to my Wi-Fi network. Afterwards, I went to settings, Call, and scrolled all the way down. There's a new section called "Enhanced Call Service" and VoLTE and WiFi Calling are now options available.

MegaMan X said:
I have an HTC A9 (oem unlocked), on T-Mobile USA.
VoLTE and Wi-Fi was not enabled by default until I manually forgot and reconnected to my Wi-Fi network. Afterwards, I went to settings, Call, and scrolled all the way down. There's a new section called "Enhanced Call Service" and VoLTE and WiFi Calling are now options available.
Click to expand...
Click to collapse
OK. Thanks. The tip about "forgetting" the network and re-adding might be worth trying. But only later today, once I get home.

xela19115 said:
OK. Thanks. The tip about "forgetting" the network and re-adding might be worth trying. But only later today, once I get home.
Click to expand...
Click to collapse
So I deleted/"forgot" all of the Wi-Fi networks. Rebooted the phone. And still no Enhanced Services with VoLTE and Wi-Fi calling area under Settings --> Call. next step would be to do a factory reset and see if that helps.

xela19115 said:
So I deleted/"forgot" all of the Wi-Fi networks. Rebooted the phone. And still no Enhanced Services with VoLTE and Wi-Fi calling area under Settings --> Call. next step would be to do a factory reset and see if that helps.
Click to expand...
Click to collapse
Have you tried a network settings reset? It should be under settings>backup and reset

I'm having the same issue. I'm wondering where the Wi-fi Calling feature is. I have the US Unlocked/Dev edition and the "Wi-fi Calling" tab isn't under "Mobile Data" like it was on 6.0.1 .

I have the unlocked a9 on tmobile and everything worked well immediately after updating.
I have yet to make an actual call over wifi on nougat but sms worked fine and volte certainly works.
The only strange thing is the lte indicator seems to be the verizon one
Perhaps you should try taking the sim out, restarting, putting the sim back in and see if that makes the phone recognise it needs to use tmo settings?
---------- Post added at 10:30 PM ---------- Previous post was at 10:28 PM ----------
theNdroid said:
I'm having the same issue. I'm wondering where the Wi-fi Calling feature is. I have the US Unlocked/Dev edition and the "Wi-fi Calling" tab isn't under "Mobile Data" like it was on 6.0.1 .
Click to expand...
Click to collapse
volte and wifi calling are under "calls" now. scroll all the way down

treeco72 said:
I have the unlocked a9 on tmobile and everything worked well immediately after updating.
I have yet to make an actual call over wifi on nougat but sms worked fine and volte certainly works.
The only strange thing is the lte indicator seems to be the verizon one
Perhaps you should try taking the sim out, restarting, putting the sim back in and see if that makes the phone recognise it needs to use tmo settings?
---------- Post added at 10:30 PM ---------- Previous post was at 10:28 PM ----------
volte and wifi calling are under "calls" now. scroll all the way down
Click to expand...
Click to collapse
Where do you see "Wi-Fi Calling" ? ?

theNdroid said:
Where do you see "Wi-Fi Calling" ? ?
Click to expand...
Click to collapse
i would suggest restarting your phone with no sim inside and then put one it to see whether the device recognises are new carrier

treeco72 said:
i would suggest restarting your phone with no sim inside and then put one it to see whether the device recognises are new carrier
Click to expand...
Click to collapse
Are you sure you have the US Unlocked/Developers edition?

It appeared after I flashed the Nougat RUU

theNdroid said:
It appeared after I flashed the Nougat RUU
Click to expand...
Click to collapse
I am on 2.18.617.21 and can't find these settings. How to get them back. Unable to make or receive calls on my mobile since mine is an LTE only network. Tried factory reset and changing CID to 11111111, but nothing worked.

Wifi calling enabled but not working (VZW+Airplane mode)

Trying to test the feature before I go overseas. Wifi calling is enabled, HD voice/advanced calling enabled. When I check the hidden menu in *#*#4636#*#* everything is checked.
I turn on airplane mode and enable wifi. When I try to make a call, the dialer says "turn off airplane mode or connect to a wireless network to make a call". I am connected to Wifi though and signal strength is solid. What is the problem?

You rooted? Don't know if that really matters but, I had use adb to edit the settings database. I never could get it to work till I did that. No root needed. Just Google wifi calling preferred ADB.
Sent from my Pixel using Tapatalk
---------- Post added at 09:28 AM ---------- Previous post was at 09:18 AM ----------
baknblack said:
You rooted? Don't know if that really matters but, I had use adb to edit the settings database. I never could get it to work till I did that. No root needed. Just Google wifi calling preferred ADB.
Sent from my Pixel using Tapatalk
Click to expand...
Click to collapse
2 settings need to be changed I forgot but I think one is to prefer wifi and the other is to make wifi the preferred roaming method.
Sent from my Pixel using Tapatalk

I am aware of that guide for ADB. However that is for preferred WiFi calling when both cellular and WiFi are available. It shouldn't help when I'm in airplane mode.

Celeras said:
I am aware of that guide for ADB. However that is for preferred WiFi calling when both cellular and WiFi are available. It shouldn't help when I'm in airplane mode.
Click to expand...
Click to collapse
I never could get mine to work in airplane mode. Kept getting an error.
Sent from my Pixel using Tapatalk

Had same problem with Verizon Wifi calling, fixed it
I had the same problem on my OG 2016 Pixel (rooted) running stock 7.1.2 ROM on VZW, but now fixed - here are the steps:
1. Open Testing Menu (dial *#*#4636#*#* on dialpad).
2. tap the "Phone information" menu.
3. Toggle on the "VoLTE Provisioned" slider (this was toggled off by default on mine). (Also make sure "Wifi Calling Provisioned" is toggled on.)
4. Using the Quicksettings dropdown menu, toggle Airplane Mode.
5. IMPORTANT NOTE - When I tried the 1st time it didn't work because entering Airplane Mode greyed out Wifi icon and disabled all Wifi connections (and data icon showed "no service"), even though Wifi was previously toggled on.
6. To remedy this, drop down your Quicksettings menu again and simply touch the Wifi connections shortcut, wait a couple seconds and all Wifi connections will repopulate, and default Wifi connection should re-connect.
7. Now hit the back button to the Quicksettings dropdown menu, wait another couple seconds and the data icon should change to "Verizon Wireless Wi-Fi Calling" - Wifi calling should now work

Preterist said:
I had the same problem on my OG 2016 Pixel (rooted) running stock 7.1.2 ROM on VZW, but now fixed - here are the steps:
1. Open Testing Menu (dial *#*#4636#*#* on dialpad).
2. tap the "Phone information" menu.
3. Toggle on the "VoLTE Provisioned" slider (this was toggled off by default on mine). (Also make sure "Wifi Calling Provisioned" is toggled on.)
4. Using the Quicksettings dropdown menu, toggle Airplane Mode.
5. IMPORTANT NOTE - When I tried the 1st time it didn't work because entering Airplane Mode greyed out Wifi icon and disabled all Wifi connections (and data icon showed "no service"), even though Wifi was previously toggled on.
6. To remedy this, drop down your Quicksettings menu again and simply touch the Wifi connections shortcut, wait a couple seconds and all Wifi connections will repopulate, and default Wifi connection should re-connect.
7. Now hit the back button to the Quicksettings dropdown menu, wait another couple seconds and the data icon should change to "Verizon Wireless Wi-Fi Calling" - Wifi calling should now work
Click to expand...
Click to collapse
I appreciate the suggestion. I had tried toggling all those options previously but I did it again per your instructions. It did not work.
My quicksettings text goes from "Verizon Wireless" to "Airplane mode" when it is enabled. Then when I put WiFi back on it goes BLANK. It does not say "Verizon Wireless WiFi Calling" like yours did. Any ideas?

I don't understand. I have a cellular signal and my wifi calling just stays on. All I did was change 2 values in the Database.
Sent from my Pixel using Tapatalk

Yes thanks, I already established I am not trying to get it to stay on all the time.

Celeras said:
Yes thanks, I already established I am not trying to get it to stay on all the time.
Click to expand...
Click to collapse
I guess I never caught that fact. Mine doesn't stay on all the time. But, as soon as I walk in my house it pops on. My wife has an S7 and I can't get hers to work unless I turn the cellular off. Evidently Samsung does not have the same settings database.
Sent from my Pixel using Tapatalk

Perhaps a local router misconfiguration?
Celeras said:
I appreciate the suggestion. I had tried toggling all those options previously but I did it again per your instructions. It did not work.
My quicksettings text goes from "Verizon Wireless" to "Airplane mode" when it is enabled. Then when I put WiFi back on it goes BLANK. It does not say "Verizon Wireless WiFi Calling" like yours did. Any ideas?
Click to expand...
Click to collapse
I've heard that a local Wi-Fi router mis-configuration may be the reason Wi-fi calling fails in some instances.
I would test it out on a different router, or have someone with a known good Wi-fi calling phone setup test on your router to eliminate that possibility.
I've also heard that Wi-fi calling breaks when upgrading to Oreo for some folks. Curious what Android version you're running?

Preterist said:
I've heard that a local Wi-Fi router mis-configuration may be the reason Wi-fi calling fails in some instances.
I would test it out on a different router, or have someone with a known good Wi-fi calling phone setup test on your router to eliminate that possibility.
I've also heard that Wi-fi calling breaks when upgrading to Oreo for some folks. Curious what Android version you're running?
Click to expand...
Click to collapse
Hmm, I will give that a shot next time I can. All my tests have been on my home wifi.
And yes I am running the latest stock update, 8.1.0

baknblack said:
You rooted? Don't know if that really matters but, I had use adb to edit the settings database. I never could get it to work till I did that. No root needed. Just Google wifi calling preferred ADB.
Sent from my Pixel using Tapatalk
---------- Post added at 09:28 AM ---------- Previous post was at 09:18 AM ----------
2 settings need to be changed I forgot but I think one is to prefer wifi and the other is to make wifi the preferred roaming method.
Click to expand...
Click to collapse
How would one go about doing this ?

Xdevillived666 said:
How would one go about doing this ?
Click to expand...
Click to collapse
https://www.xda-developers.com/enable-preferred-wifi-calling-option-verizon-pixel-pixel-xl/
Sent from my Pixel using Tapatalk

baknblack said:
https://www.xda-developers.com/enable-preferred-wifi-calling-option-verizon-pixel-pixel-xl/
Sent from my Pixel using Tapatalk
Click to expand...
Click to collapse
could this possibly work on other carriers?

Xdevillived666 said:
could this possibly work on other carriers?
Click to expand...
Click to collapse
It will work on pixels if the carrier has wifi calling and your provisioned for it. The menus are different on other phones.
Sent from my Pixel using Tapatalk

baknblack said:
It will work on pixels if the carrier has wifi calling and your provisioned for it. The menus are different on other phones.
Click to expand...
Click to collapse
Thanks. I think my carrier has it but in my menu (I have the pixel) I get this :
Will it stillwork?

Xdevillived666 said:
Thanks. I think my carrier has it but in my menu (I have the pixel) I get this :
Will it stillwork?
Click to expand...
Click to collapse
Ps-my wife's S7 has it enabled. I think they do that crap of " we allow it if you get the phone from us and it happens to be a model.we support".

Xdevillived666 said:
Ps-my wife's S7 has it enabled. I think they do that crap of " we allow it if you get the phone from us and it happens to be a model.we support".
Click to expand...
Click to collapse
It's not provisioned for VOLTE so wifi calling won't work. If you talk real nice to someone at customer service they might do it for you.
Sent from my Pixel using Tapatalk

baknblack said:
It's not provisioned for VOLTE so wifi calling won't work. If you talk real nice to someone at customer service they might do it for you.
Click to expand...
Click to collapse
Thanks. I'll go to a location and try.

I ran into the same issue, possibly after Magisk install on custom RR Rom (Marlin/Latest April Oreo build). It had worked one time but I guess installing Magisk was the most recent change I could think of after which it stopped working with the error message reported by OP. Anyways the only thing that worked was to do a "Network Setting Reset" , then setup Wifi (Airplane mode on) again and Wifi Calling settings back to On with Wi-Fi preferred.
Note: Also in "Mobile Network" in Settings, need to ensure "Roaming/Connect to data services when roaming" option is selected for the "Wifi Preferred" option to stick.
.

wifi calling on tmobile us verizone att

is there anyone with HTC u12+ on tmobile Us Verizone and Att with working wifi calling and volte who could share their default.xml file from system/customize/Acc and map_mns.xml system/customize and also all xml files from system/customize/mns trying to make wifi calling and volte on any htc u12+ or htc u11+
link to my thread
https://forum.xda-developers.com/u12-plus/how-to/wi-fi-calling-volte-t3867267
thanks for any help

The HTC u12+ for Verizon only has LTE capabilities. So all calls are by default VoLTE. However, WiFi Calling is a no go. It would be awesome if we could get that to work.
The files you need, do they contain any sensitive information about the phone? If not, I could grab you all the ones from my Verizon HTC u12+

JWhetstone02 said:
The HTC u12+ for Verizon only has LTE capabilities. So all calls are by default VoLTE. However, WiFi Calling is a no go. It would be awesome if we could get that to work.
The files you need, do they contain any sensitive information about the phone? If not, I could grab you all the ones from my Verizon HTC u12+
Click to expand...
Click to collapse
No there no imei or any other sensitive information in them only carrier settings etc

marcinkoko009 said:
No there no imei or any other sensitive information in them only carrier settings etc
Click to expand...
Click to collapse
here you go
Verizon HTC u12+

JWhetstone02 said:
here you go
Verizon HTC u12+
Click to expand...
Click to collapse
Thanks mate will check that later today and see the different against mine

JWhetstone02 said:
here you go
Verizon HTC u12+
Click to expand...
Click to collapse
hi mate i did check yours files and edited them according default.xml from verizon branded htc 10
can you do backup of your default.xml from system/customize/acc
then delete and copy attached one in
to copy that you need place on sdcard then boot twrp and use file manager built in adavanced settings and paste in system/customize/acc
then reboot your phone and let me know if you got wifi calling and volte working
you should be able see options under call settings and volte icon and wifi calling icon in statusbar
let me know if works
regards

I have WiFi calling options, but it killed data and service

JWhetstone02 said:
I have WiFi calling options, but it killed data and service
Click to expand...
Click to collapse
OK is Wi-Fi calling working at all ?
Will check that files again looks like I missed something
Just put your default.xml back

marcinkoko009 said:
OK is Wi-Fi calling working at all ?
Will check that files again looks like I missed something
Just put your default.xml back
Click to expand...
Click to collapse
WiFi calling did not work. All options were there, it let me uncheck and check, but when I went to make a call it wanted me to turn off airplane mode and wait for a mobile network to be available. and form the screenshot above, there is no mobile data.
Is there a way you can just edit the wifi calling stuff and not mess with the VoLTE. VoLTE is by default already on the phone through verizon

this is also what it shows as default from Verizon
just need to be able to enable the video and wifi calling

JWhetstone02 said:
WiFi calling did not work. All options were there, it let me uncheck and check, but when I went to make a call it wanted me to turn off airplane mode and wait for a mobile network to be available. and form the screenshot above, there is no mobile data.
Is there a way you can just edit the wifi calling stuff and not mess with the VoLTE. VoLTE is by default already on the phone through verizon
Click to expand...
Click to collapse
Yes I will try to check that again
Thanks for testing

JWhetstone02 said:
The HTC u12+ for Verizon only has LTE capabilities. So all calls are by default VoLTE. However, WiFi Calling is a no go. It would be awesome if we could get that to work.
The files you need, do they contain any sensitive information about the phone? If not, I could grab you all the ones from my Verizon HTC u12+
Click to expand...
Click to collapse
can u check that just do backup of your files and copy that in to system/customize

marcinkoko009 said:
can u check that just do backup of your files and copy that in to system/customize
Click to expand...
Click to collapse
Tried those files and this is what I have.
The video calling and WiFi calling are turned on under phone information
When going to phone > call > settings I cannot enable the WiFi calling in there. If I click it like 5 times, then it is enabled but it will turn off the time I back out the menu. Also it will not let me choose the preferred calling over WiFi vs Mobile network when it is enabled

JWhetstone02 said:
Tried those files and this is what I have.
The video calling and WiFi calling are turned on under phone information
When going to phone > call > settings I cannot enable the WiFi calling in there. If I click it like 5 times, then it is enabled but it will turn off the time I back out the menu. Also it will not let me choose the preferred calling over WiFi vs Mobile network when it is enabled
Click to expand...
Click to collapse
ok thanks i think we getting closer
4g still works and network signal as i can see so that is good
what is you phone cid?

JWhetstone02 said:
Tried those files and this is what I have.
The video calling and WiFi calling are turned on under phone information
When going to phone > call > settings I cannot enable the WiFi calling in there. If I click it like 5 times, then it is enabled but it will turn off the time I back out the menu. Also it will not let me choose the preferred calling over WiFi vs Mobile network when it is enabled
Click to expand...
Click to collapse
ok can u try attached last time for today
if not i will try dig around other forums to see if or what is missing
thanks for you help with testing

marcinkoko009 said:
ok can u try attached last time for today
if not i will try dig around other forums to see if or what is missing
thanks for you help with testing
Click to expand...
Click to collapse
I tried those files and it did indeed let me turn the WiFi Calling on and select which preferred way to go. But I could no longer make any calls. With it without WiFi enabled.

JWhetstone02 said:
I tried those files and it did indeed let me turn the WiFi Calling on and select which preferred way to go. But I could no longer make any calls. With it without WiFi enabled.
Click to expand...
Click to collapse
OK thanks I will dig some other forums to see if we can make that working

It's been a little while since your last update. Have you got wifi calling to work, and video calling???
thanks

k hammer said:
It's been a little while since your last update. Have you got wifi calling to work, and video calling???
thanks
Click to expand...
Click to collapse
Hi sorry but no luck

Disable Wi-Fi Calling

I purchased a Global version 1+7P (GM1917) directly from OnePlus. Then I signed up for T-Mobile service.
I am having problems with calls coming in over Wi-Fi. However, in Settings under Wi-Fi & internet, there is no Wi-Fi calling entry, so I cannot find how to turn off Wi-Fi calling.
Is there another method for turning it off? A package I can disable? (I have root.)

jdhedden said:
I purchased a Global version 1+7P (GM1917) directly from OnePlus. Then I signed up for T-Mobile service.
I am having problems with calls coming in over Wi-Fi. However, in Settings under Wi-Fi & internet, there is not Wi-Fi calling entry, so I cannot find how to turn off Wi-Fi calling.
Is there another method for turning it off? A package I can disable? (I have root.)
Click to expand...
Click to collapse
I don't have the phone yet but look under mobile network or search in settings. On stock Android pie it's under the mobile network advanced settings

HewettBR said:
I don't have the phone yet but look under mobile network or search in settings. On stock Android pie it's under the mobile network advanced settings
Click to expand...
Click to collapse
Under Settings -> Wi-Fi & internet -> SIM & network, there is Preferred network type, but that only set 2G/3G/4G. Nothing about Wi-Fi calling. I couldn't find anything called 'Mobile network'.

jdhedden said:
Under Settings -> Wi-Fi & internet -> SIM & network, there is Preferred network type, but that only set 2G/3G/4G. Nothing about Wi-Fi calling. I couldn't find anything called 'Mobile network'.
Click to expand...
Click to collapse
either install the new onepluslogkit app and *#800# into oneplus logkit/function switch/volte+vowifi switches on
This option will allow you to turn on/off as above. but in sim settings/ Sim1/Enhanced Communications
Or *#*#4636#*#* and turn off provisioning for volte/vowifi.

jdhedden said:
I purchased a Global version 1+7P (GM1917) directly from OnePlus. Then I signed up for T-Mobile service.
I am having problems with calls coming in over Wi-Fi. However, in Settings under Wi-Fi & internet, there is not Wi-Fi calling entry, so I cannot find how to turn off Wi-Fi calling.
Is there another method for turning it off? A package I can disable? (I have root.)
Click to expand...
Click to collapse
Phone app - three dots, top right - settings - at the bottom, SIM & network - SIM 1 - WI-FI Calling.

HewettBR said:
I don't have the phone yet but look under mobile network or search in settings. On stock Android pie it's under the mobile network advanced settings
Click to expand...
Click to collapse
miffymiffy said:
either install the new onepluslogkit app and *#800# into oneplus logkit/function switch/volte+vowifi switches on
This option will allow you to turn on/off as above. but in sim settings/ Sim1/Enhanced Communications
Or *#*#4636#*#* and turn off provisioning for volte/vowifi.
Click to expand...
Click to collapse
Tried the OnePlusLogKit, but the *#800# didn't bring up anything.
Tried *#*#4636#*#*, but when I toggled 'WiFi Calling Provisioned', it would "stick" - the Update button produced an error, and it reset on reboot.

bp328i said:
Phone app - three dots, top right - settings - at the bottom, SIM & network - SIM 1 - WI-FI Calling.
Click to expand...
Click to collapse
That did it! I didn't realize there were more settings under SIM 1. The Wi-Fi Calling under it doesn't show up on searching in Settings. Thanks.

I hope one day wifi calling works with Verizon. The settings are greyed out

jdhedden said:
I purchased a Global version 1+7P (GM1917) directly from OnePlus. Then I signed up for T-Mobile service.
I am having problems with calls coming in over Wi-Fi. However, in Settings under Wi-Fi & internet, there is no Wi-Fi calling entry, so I cannot find how to turn off Wi-Fi calling.
Is there another method for turning it off? A package I can disable? (I have root.)
Click to expand...
Click to collapse
What kind of problems are you having with calls over wifi? I plan to use the 7pro on tmobile so I'm just curious

Genetic517 said:
What kind of problems are you having with calls over wifi? I plan to use the 7pro on tmobile so I'm just curious
Click to expand...
Click to collapse
This may all be my misconstruing the problem. After turning off wifi call, I tried calling my wife (which was where I notice the problem), and we still couldn't hear each other. Yet when I call voicemail, I can hear it and I can change my announcement which shows that the phone does work both ways. Therefore, now I'm thinking that wifi calling was not the issue, and the fault is somewhere with t-mobile. The mystery continues.

The mystery deepens. Using Google Hangouts Dialer (which goes over wifi), calling my wife fails (nothing heard either way), but calling voicemail, again, works just fine. I just don't get it.

[Deleted]

Thanks for this thread. I knew I saw that somewhere but forgot to check the SIM menu.
Why isn't it in settings search when even dev options are?
Why does TMO lie and way it is in the same spot as most phones, in their article specifically about the OP7p?
My issue in on a WiFi call, sometimes I can't hear them (but they can hear me), sometime from the call start other times mid-call, and turning off WiFi fixes it. I have 1000mb fiber and no other network issues. Too bad it doesn't work. Thanks for helping me disable it.

Does this activity enable volte on Chinese model?

I used "create shortcut" and found this activity in my ColorOS 11 alpha.
com.android.settings.network.telephony.MobileNetworkActivity
It seems to be Android native SIM setting and have VOLTE option in it with my Chinese SIM. (10-50-58-50.jpg)
I am not in the UK and The VOLTE option does not show up with my UK SIM probably because VOLTE does not work with roaming. (10-35-05-86.jpg)
So would someone test their SIM with this activity?

Yes, it does.

user_ScoTTT said:
Yes, it does.
Click to expand...
Click to collapse
So there is the VOLTE option with your non-Chinese SIM and there is HD icon in the status bar after turning the option on?

ZZYSonny said:
So there is the VOLTE option with your non-Chinese SIM and there is HD icon in the status bar after turning the option on?
Click to expand...
Click to collapse
I'm Chinese. When I turn on volte, there will be an icon.

How do I activate VoLTE and WiFi calling on Chinese ROM?

golemagg said:
How do I activate VoLTE and WiFi calling on Chinese ROM?
Click to expand...
Click to collapse
Try open the menu with Shortcut Maker and see if Volte option is in it.

ZZYSonny said:
Try open the menu with Shortcut Maker and see if Volte option is in it.
Click to expand...
Click to collapse
I downloaded Shortcut Maker but don't know how to go forward from there.

golemagg said:
I downloaded Shortcut Maker but don't know how to go forward from there.
Click to expand...
Click to collapse
Go to the App - Activity - Search for Mobile Network - Find the one in setting - Try the shortcut
Then you should have the menu.
Not sure if this menu is on ColorOS7 though

ZZYSonny said:
Go to the App - Activity - Search for Mobile Network - Find the one in setting - Try the shortcut
Then you should have the menu.
Not sure if this menu is on ColorOS7 though
Click to expand...
Click to collapse
The highlighted setting seems to be missing from my phone. I don't see that.
I am surprised that this doesn't have WiFi calling since mobile network at my home is sketchy and till now I was relying on WiFi calling on my old phone for all work calls.

golemagg said:
The highlighted setting seems to be missing from my phone. I don't see that.
I am surprised that this doesn't have WiFi calling since mobile network at my home is sketchy and till now I was relying on WiFi calling on my old phone for all work calls.
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Probably this menu isn't available on ColorOS7.
I am on ColorOS11 alpha. You can also apply ColorOS11 beta in Settings-Update before October. But I can't gaurantee this will solve the VOLTE / VOWIFI issue. Also latest beta fails the Safety net test.

ZZYSonny said:
Probably this menu isn't available on ColorOS7.
I am on ColorOS11 alpha. You can also apply ColorOS11 beta in Settings-Update before October. But I can't gaurantee this will solve the VOLTE / VOWIFI issue. Also latest beta fails the Safety net test.
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Yeah I thought about getting the beta but not sure I want to be on an unstable beta build on my main phone.

Now ColorOS11 (for Chinese device )is out for everyone. To update, you can go setting-update-gear on the right corner-first option. Anyone wants to try this method for enabling volte?

ZZYSonny said:
Now ColorOS11 (for Chinese device )is out for everyone. To update, you can go setting-update-gear on the right corner-first option. Anyone wants to try this method for enabling volte?
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Hi I've just updated the phone to colorOS 11. I've tried the shortcut maker and gone to the seeing page but there's no volte option on it. Any pointers?
Any way wifi calling can be activated?