Database Develop

activating VoLTE

Have finally found the VoLTE settings on the phone but for some reason when I activate it using. *#*#4636#*# it deactivated as soon as I leave the page. Is this because my mobile provider (3 UK) doesn't support it on the Oneplus 3t?

Eggstones said:
Have finally found the VoLTE settings on the phone but for some reason when I activate it using. *#*#4636#*# it deactivated as soon as I leave the page. Is this because my mobile provider (3 UK) doesn't support it on the Oneplus 3t?
Click to expand...
Click to collapse
Do you have the volte switch in your settings ?

VoLTE is a feature that is provisioned by your carrier. Most carriers will not provision VoLTE unless they have an open policy (allows all capable devices), or if you are using a carrier-branded phone. For the second option, lots of carriers claim that it is to ensure stability and quality of service, though I suspect that's all BS they spew in an attempt to sell more of their own phones.
Anyhow, try to find out if your carrier provisions VoLTE to unlocked/unbranded phones. If not, activating the VoLTE setting within the phone will not do anything.

I'm in an AT&T HD Voice coverage area.. never been able to use it or even see if it works. The build.prop edits seem to work for some but I've never been able to get it to work at all.. Could be AT&T blocking it of course since I don't have an AT&T device really on any of my 4 lines.. All unlocked non-carrier phones.

jbarcus81 said:
I'm in an AT&T HD Voice coverage area.. never been able to use it or even see if it works. The build.prop edits seem to work for some but I've never been able to get it to work at all.. Could be AT&T blocking it of course since I don't have an AT&T device really on any of my 4 lines.. All unlocked non-carrier phones.
Click to expand...
Click to collapse
+1

No issues at all for me. USA TMO.
Sent from my OnePlus 3T using XDA Labs

It is toggled on under status bar together with VoWifi but no idea how to activate it. I suspect my carrier doesn't allow it yet for this phone.

I seem to now have been able to activate it by *#800# but still no joy. I'm guessing this is due to three blocking it rather than my phone.

I use the VoLTE enabler in Magisk and once I enable and restart I have no issues. Workout it I don't get HD calling and any call I make, my phone drops from LTE to H. I'm on AT&T.

OP3T on Three UK. Been using crDroid Pie recently and i'm now able to make VoLTE calls. It comes and goes though. The options are in Settings and 'Enabled'. Phone Test shows VoLTE Provisioned. VoLTE icon show up in Status Bar.
Most of the time when i make a call i still see the Signal Icon drop from '4G' to 'H', but if i repeat dial a few times it latches on to VoLTE. I'm not sure why the inconsistency, but my 4G reception is weak and prone to disappearing entirely, so maybe that's why.
Three APN settings in ROM are same as always. No special 'ims' APN or settings.
@Eggstones
Edit: The package 'org.codeauora.ims' has been mentioned a few times for throwing up a 'Device is HD capable' Notification. I assume it's updates to this package that have enabled VoLTE?

@Dirk
I can get the volte to work fine but not the WiFi calling. I'd love to get that working ok.

Eggstones said:
@Dirk
I can get the volte to work fine but not the WiFi calling. I'd love to get that working ok.
Click to expand...
Click to collapse
It's working for me. Turned off Mobile, enabled Wifi calling and had no problem making a call. I think the necessary settings have been added to the ims packages that are commonly included in Pie custom ROMs now.
What ROM are you using at the moment?

Dirk said:
It's working for me. Turned off Mobile, enabled Wifi calling and had no problem making a call. I think the necessary settings have been added to the ims packages that are commonly included in Pie custom ROMs now.
What ROM are you using at the moment?
Click to expand...
Click to collapse
My phone is an OnePlus 3t, android 8.0.0 OOS 5.08
Switched off data and reactivated WiFi calling toggle but no success.

Eggstones said:
My phone is an OnePlus 3t, android 8.0.0 OOS 5.08
Switched off data and reactivated WiFi calling toggle but no success.
Click to expand...
Click to collapse
As i said, it's working on Pie ROMs. It's not going to start working for you unless you update. It's impossible to say if the same will apply when OOS Pie is released. Maybe, maybe not.

Ok ta

Eggstones said:
Ok ta
Click to expand...
Click to collapse
Have you used custom ROMs before? Is there something holding you back, or do you just prefer OOS?

Dirk said:
Have you used custom ROMs before? Is there something holding you back, or do you just prefer OOS?
Click to expand...
Click to collapse
No. I have never tried to install one. Not sure how to do it. I'm aware of various guides but haven't taken the plunge. The furthest I got was rooting some old phones.

Eggstones said:
No. I have never tried to install one. Not sure how to do it. I'm aware of various guides but haven't taken the plunge. The furthest I got was rooting some old phones.
Click to expand...
Click to collapse
You wouldn't need to Root. Everything else is a doddle on this phone. You might give it some thought. The obvious thing is to find out what the differences are and weigh up the pro's and cons. If Battery life is your absolute priority then OOS might be better. If wifi calling is your priority then custom ROMs are the answer. Gotta decide where you might gain, and where you might lose out.
If you decide to go for it, this is a good guide:
https://forum.xda-developers.com/oneplus-5/how-to/oneplus-5-unlock-bootloader-flash-twrp-t3624877
Of course that is for the OP5 so you wouldn't use the software linked in that thread, but the principal is the same. The equivelent software for this phone is available here. The guide gets you through the important steps of unlocking Bootloader and getting TWRP on your phone. Beyond that it's easy as Pie to get a custom ROM on your phone.
Just ask if you need help. I can link you to the files you'd need.

Thank you. I might give it a go later this week

Note korean version call issue

Hello all,
anyone with the N version and has call issue like your calls will go straight to vm ?
i called my phone many times and it never rang
maybe i need to flash a different CSC ? I'm not sure
thanks

TheUndertaker21 said:
Hello all,
anyone with the N version and has call issue like your calls will go straight to vm ?
i called my phone many times and it never rang
maybe i need to flash a different CSC ? I'm not sure
thanks
Click to expand...
Click to collapse
Didn't have any issues with mine out of the box or now that I've finally got all the T-Mobile stuff working with it's CSC and apps. I've called out and received calls in both circumstances and had zero issues. What provider are you with here?

Kalm_Traveler said:
Didn't have any issues with mine out of the box or now that I've finally got all the T-Mobile stuff working with it's CSC and apps. I've called out and received calls in both circumstances and had zero issues. What provider are you with here?
Click to expand...
Click to collapse
Mine was some Band LTE I think.
Gonna try your link and see
Edit: your link you gave me fixed the issue.
Thanks.
Sent from my SM-N950F using XDA-Developers Legacy app

Kalm_Traveler said:
Didn't have any issues with mine out of the box or now that I've finally got all the T-Mobile stuff working with it's CSC and apps. I've called out and received calls in both circumstances and had zero issues. What provider are you with here?
Click to expand...
Click to collapse
How did you get the tmobile csc? I was having call issues too but when i changed the ims settings and enabled volte calls got better but when im in a area with bad lte service calls are taking long to go thru. Could that be a csc issue? Also i dont see a link that the op is saying you provided that fixed the problem

AssAssiN FtC said:
How did you get the tmobile csc? I was having call issues too but when i changed the ims settings and enabled volte calls got better but when im in a area with bad lte service calls are taking long to go thru. Could that be a csc issue? Also i dont see a link that the op is saying you provided that fixed the problem
Click to expand...
Click to collapse
Extracted it from the T-mobile ROM and dropped the files into a CSC changer flashable zip for an S8, modified it so it would work on my Note 8 and flashed it.

AssAssiN FtC said:
How did you get the tmobile csc? I was having call issues too but when i changed the ims settings and enabled volte calls got better but when im in a area with bad lte service calls are taking long to go thru. Could that be a csc issue? Also i dont see a link that the op is saying you provided that fixed the problem
Click to expand...
Click to collapse
that was my issue
i spent 45 mns on t mobile call then i realized why i'm calling them since my phone isn't a t mobile one lol
i flashed Kalm file
and that fixed my issue
hopefully the main dev can port it over
i don't think he's gonna be too happy with his file being modified like that

TheUndertaker21 said:
that was my issue
i spent 45 mns on t mobile call then i realized why i'm calling them since my phone isn't a t mobile one lol
i flashed Kalm file
and that fixed my issue
hopefully the main dev can port it over
i don't think he's gonna be too happy with his file being modified like that
Click to expand...
Click to collapse
ah I didn't even think about someone being upset about it. If he is I'll take the link down. I just wanted to share for anyone else in our situation since there is no official Note 8 CSC changer at the moment.

Kalm_Traveler said:
Extracted it from the T-mobile ROM and dropped the files into a CSC changer flashable zip for an S8, modified it so it would work on my Note 8 and flashed it.
Click to expand...
Click to collapse
I found the file in your other thread i just Odin it no root needed right? Thanks in advance

Not Odin, it is a flashable zip so you'll need a custom recovery and probably root

Kalm_Traveler said:
Not Odin, it is a flashable zip so you'll need a custom recovery and probably root
Click to expand...
Click to collapse
Ok cool glad i asked before i did anything lol

Ended up calling t mobile and they had me reset my network settings then turn off my phone while they did something on their end. Turned my phone back on and boom no more problems. Didn't want to try root yet until there was a more stable one available. Thanks for all the help

Kalm_Traveler said:
Not Odin, it is a flashable zip so you'll need a custom recovery and probably root
Click to expand...
Click to collapse
Do you have a link to the CSC file your talking about. I could use it also. I just got my note 8 yesterday from the same place you picked yours up, thanks

gubbilo144 said:
Do you have a link to the CSC file your talking about. I could use it also. I just got my note 8 yesterday from the same place you picked yours up, thanks
Click to expand...
Click to collapse
yeah it's in my thread here https://forum.xda-developers.com/showpost.php?p=73858645&postcount=17
But I redid it last night after someone confirmed that they didn't even need the Note 8 CSC files, and I deleted out everything for other carriers so the new file is only about 120mb instead of 300-something.
I can post that up after work if you want to wait, uploading is blocked here at work for some reason.
Have to add that wifi calling still doesn't seem to be working, but VoLTE does since calling does not drop me from LTE. I have no menu settings for either still, but after doing a full reset, reflashing etc I have the wifi calling quick toggle but it doesn't seem to turn on all the way - the "on" color is light-grey instead of white like everything else (dark grey when off) and in the System UI tuner app, no icon is set for Wifi Calling or VoLTE.

Kalm_Traveler said:
But I redid it last night after someone confirmed that they didn't even need the Note 8 CSC files, and I deleted out everything for other carriers so the new file is only about 120mb instead of 300-something.
I can post that up after work if you want to wait, uploading is blocked here at work for some reason.
Click to expand...
Click to collapse
Howdy. Did you post this anywhere yet? My phone is on it's way. Thanks for the seller tip.

Pinan said:
Howdy. Did you post this anywhere yet? My phone is on it's way. Thanks for the seller tip.
Click to expand...
Click to collapse
Yeah it's in my Exynos T-mobile CSC thread but I've got a better smaller one now. I took a pack that @TEKHD made for the S8+ F variant and switched out the files with Note 8 T-mobile files but there is a little bit left to go to make WiFi Calling work on our N950N, VoLTE works, HD voice works, video calling works, but I'm still trying to figure out what's missing for WiFi calling. It's menu isn't even showing up yet.
Current flashable zip is only 88mb and I'm fairly sure whenever I figure out the remaining files that need to be copied over it won't be much larger.

Kalm_Traveler said:
Yeah it's in my Exynos T-mobile CSC thread but I've got a better smaller one now.
Click to expand...
Click to collapse
Right. The better smaller one is the one I'm looking for. I already had downloaded the older/larger one, then I saw your post.
Is the smaller one available?

Pinan said:
Right. The better smaller one is the one I'm looking for. I already had downloaded the older/larger one, then I saw your post.
Is the smaller one available?
Click to expand...
Click to collapse
I'm about to do a factory Odin flash to stock and test the latest version - if it works properly I'll post it up with a link - though I don't want to step on anyone's toes since the core script and idea belongs to TEKHD.
Fair warning as far as right now I still haven't figured out why WiFi Calling is missing, I set up this the same way he has his S8+ pack for their F variant aside from adding a few framework files that I found referenced in the Tmo Wifi Calling apk that don't exist on a factory Korean N950N but are on the Tmo ROM, and my theory if this next attempt doesn't enable WiFi Calling is that the N950N is fundamentally either just missing more files that need to be in place for it to work and I haven't found them yet, or that it has different/incompatible versions of some files that the T-Mobile Wifi Calling needs to function.
In other words I have 2 more things to test, then I am going to try fully wiping, flashing an N950F-based ROM and apply the T-Mobile WFC pack to that, since the S8/S8+ options that enable it for those folks are for the F variants, not the N variant but the F and N have the same hardware.

Kalm_Traveler said:
I'm about to do a factory Odin flash to stock and test the latest version - if it works properly I'll post it up with a link - though I don't want to step on anyone's toes since the core script and idea belongs to TEKHD.
Fair warning as far as right now I still haven't figured out why WiFi Calling is missing, I set up this the same way he has his S8+ pack for their F variant aside from adding a few framework files that I found referenced in the Tmo Wifi Calling apk that don't exist on a factory Korean N950N but are on the Tmo ROM, and my theory if this next attempt doesn't enable WiFi Calling is that the N950N is fundamentally either just missing more files that need to be in place for it to work and I haven't found them yet, or that it has different/incompatible versions of some files that the T-Mobile Wifi Calling needs to function.
In other words I have 2 more things to test, then I am going to try fully wiping, flashing an N950F-based ROM and apply the T-Mobile WFC pack to that, since the S8/S8+ options that enable it for those folks are for the F variants, not the N variant but the F and N have the same hardware.
Click to expand...
Click to collapse
Sounds good. I went through the same things with my Note 2 years ago. I figured it out and got WiFi Calling working.
Fwiw, I have no interest in Wifi Calling on my Note 8, as my signal (also T-Mobile) is always good, and I use Hangouts (or whatever) when I'm on Wifi, for free calling.
I don't have Note 8 yet, but will order soon from the same seller as you.
Do you have any other suggestions for getting everything up and running for T-Mobile (except WiFi Calling), or is simply flashing the CSC file?

Pinan said:
Sounds good. I went through the same things with my Note 2 years ago. I figured it out and got WiFi Calling working.
Fwiw, I have no interest in Wifi Calling on my Note 8, as my signal (also T-Mobile) is always good, and I use Hangouts (or whatever) when I'm on Wifi, for free calling.
I don't have Note 8 yet, but will order soon from the same seller as you.
Do you have any other suggestions for getting everything up and running for T-Mobile (except WiFi Calling), or is simply flashing the CSC file?
Click to expand...
Click to collapse
If you don't care about Wifi Calling yeah I would say just root, custom kernel, and flash the CSC. You'll get VoLTE, HD voice, video calling etc

Kalm_Traveler said:
If you don't care about Wifi Calling yeah I would say just root, custom kernel, and flash the CSC. You'll get VoLTE, HD voice, video calling etc
Click to expand...
Click to collapse
Ahhhh, of course. I'd forgotten about the kernel. Suggestions?
Thank you for the assist.

No volte support on sm-n950U1 (USA unlocked)...??

Hi friends, I bought unlocked 64gb, single sim version of note 8 from New York last week but when I tried to use it with "Jio" sim in India, I found that phone does not support volte. Neither I could find any option in settings to activate that. So, how can I activate volte in the Said handset. Presently, using volte through "jio4gvoice" app. Pls help.

There is a thread about switching USA Carriers.
If you have, the right files you can get VOLT and other features working. At lest in the USA.
don't update this app!!

advocateamit said:
Hi friends, I bought unlocked 64gb, single sim version of note 8 from New York last week but when I tried to use it with "Jio" sim in India, I found that phone does not support volte. Neither I could find any option in settings to activate that. So, how can I activate volte in the Said handset. Presently, using volte through "jio4gvoice" app. Pls help.
Click to expand...
Click to collapse
I am using unlocked gn 8-N950U1 in the US with tmobile, I get VoLTE and video calling as well as wifi calling. For video calling feature, download Shortcut Master (Lite), open and click app explorer, scroll down to IMS settings, launch then look for IMSsettingsLaunchActivity, turn the followings to On.
MMTEL
RCS
VoLTE
VoLTE Video
I don't know about the service out of USA but it works for me at least in the US with tmobile. Good luck!

luckyfate said:
I am using unlocked gn 8-N950U1 in the US with tmobile, I get VoLTE and video calling as well as wifi calling. For video calling feature, download Shortcut Master (Lite), open and click app explorer, scroll down to IMS settings, launch then look for IMSsettingsLaunchActivity, turn the followings to On.
MMTEL
RCS
VoLTE
VoLTE Video
I don't know about the service out of USA but it works for me at least in the US with tmobile. Good luck!
Click to expand...
Click to collapse
Thx a ton..... It's working now.... ?

advocateamit said:
Thx a ton..... It's working now....
Click to expand...
Click to collapse
Onething more, should I delete that "master lite" app after activating volte ?

advocateamit said:
Onething more, should I delete that "master lite" app after activating volte ?
Click to expand...
Click to collapse
For me, I just leave it there. It is completely up to you. It's just really small app, it won't take that much space. I leave it there just in case we update firmware from Samsung, video calling settings might be lost and we have to do the settings again. By the way, I'm glad it works for you there.

I leave mine as well...I like playing in settings and other apps...it is really a useful tool once you get used to its search feature

luckyfate said:
I am using unlocked gn 8-N950U1 in the US with tmobile, I get VoLTE and video calling as well as wifi calling. For video calling feature, download Shortcut Master (Lite), open and click app explorer, scroll down to IMS settings, launch then look for IMSsettingsLaunchActivity, turn the followings to On.
MMTEL
RCS
VoLTE
VoLTE Video
I don't know about the service out of USA but it works for me at least in the US with tmobile. Good luck!
Click to expand...
Click to collapse
Thanks. Any idea what are these features?
Mmtel
Rcs
???

rcs is rich communication services. kinda like iphone's i messaging but sux. lol. Its stuck to carrier only, so sprint to sprint, tmo to tmo, etc. but it's kinda nice because u can send large videos and photos.

Need help with the same.
advocateamit said:
Thx a ton..... It's working now....
Click to expand...
Click to collapse
Hello Amit,
I have the same phone At&T Note8 with Android 7 unlocked, trying to run JIO VOLTE.
I understand the steps and tried, it did not work for me, no icon for VOLTE nor i can make any calls.
Can you please share the S/W version and steps you enabled ? I have been stuck from a week
Also, phone is asking for a 'number' when i enable the RCS , i gave the same JIO number it did not accept. Did you also get that prompt ? Is your RCS enabled ?
Thanks.

Dear friend, I just followed the steps mentioned in this thread and it's working fine till date without any issues. Just recheck you might have missed something. And about sw version will let you know in a day as the phone is of my uncle. Onething more, after following the steps did you check in settings menu and was volte option showing there after you followed the steps?

anirudhgargi said:
Hello Amit,
I have the same phone At&T Note8 with Android 7 unlocked, trying to run JIO VOLTE.
I understand the steps and tried, it did not work for me, no icon for VOLTE nor i can make any calls.
Can you please share the S/W version and steps you enabled ? I have been stuck from a week
Also, phone is asking for a 'number' when i enable the RCS , i gave the same JIO number it did not accept. Did you also get that prompt ? Is your RCS enabled ?
Thanks.
Click to expand...
Click to collapse
Dear friend, just recheck the steps and did you check in menu after you followed the steps that, volte option is now showing there or not? Rest, will let you in a day the sw version as the phone is with my uncle, but its working fine till date without any issues.

luckyfate said:
I am using unlocked gn 8-N950U1 in the US with tmobile, I get VoLTE and video calling as well as wifi calling. For video calling feature, download Shortcut Master (Lite), open and click app explorer, scroll down to IMS settings, launch then look for IMSsettingsLaunchActivity, turn the followings to On.
MMTEL
RCS
VoLTE
VoLTE Video
I don't know about the service out of USA but it works for me at least in the US with tmobile. Good luck!
Click to expand...
Click to collapse
This worked great for me thank you.

Works on Android 7.0, but not on Android 8.0
Thanks for the update. I have been using VoLTE in India using this method since last Aug 2017. However after recent official Android Oreo update on 17th March 2018, I am unable to invoke the IMSSettingsLaunchActivity using any Shortcut application. Using "QuickShortcutMaker" app when I tried to invoke this activity, I got the error message:
"Sorry. You cannot launch this activity from this app because it requires some additional permissions to launch."
This was working perfectly on Android 7.0.
Any alternate idea to enable VoLTE switch (aka IMS Service switch)? Through ADB? (No rooting please).
Thanks.
luckyfate said:
I am using unlocked gn 8-N950U1 in the US with tmobile, I get VoLTE and video calling as well as wifi calling. For video calling feature, download Shortcut Master (Lite), open and click app explorer, scroll down to IMS settings, launch then look for IMSsettingsLaunchActivity, turn the followings to On.
MMTEL
RCS
VoLTE
VoLTE Video
I don't know about the service out of USA but it works for me at least in the US with tmobile. Good luck!
Click to expand...
Click to collapse

I am also facing an issue to do such setting from the mentioned app.
Whenever I click on Ims launcher activity error comes as no data found.
I am on 8.0.0
SM-N950U1

Yes it's not working on Oreo. There are a few posts on here about it, I saw on one person's posts that I would have to find again that they have came up with a java programme that can get pass the OTP or one time passcode to access the IMS settings. I haven't tried it yet, but want to try that out soon

Snapdragon VoLTE
deepakrsarangi said:
Any alternate idea to enable VoLTE switch (aka IMS Service switch)? Through ADB? (No rooting please).
Thanks.
Click to expand...
Click to collapse
Shrek Sardu said:
I am also facing an issue to do such setting from the mentioned app.
I am on 8.0.0
SM-N950U1
Click to expand...
Click to collapse
Frozenrosen said:
Yes it's not working on Oreo.
Click to expand...
Click to collapse
Can one of you try this method and report on that thread please... https://forum.xda-developers.com/galaxy-s8+/how-to/how-to-volte-jio-india-carrier-usa-t3659238
Make sure you choose Note 8 specific files for step 2 and 3.

nimms said:
Can one of you try this method and report on that thread please... https://forum.xda-developers.com/galaxy-s8+/how-to/how-to-volte-jio-india-carrier-usa-t3659238
Make sure you choose Note 8 specific files for step 2 and 3.
Click to expand...
Click to collapse
This is based on rooting which I want to avoid af all times since many of my org related apps would stop working on a rooted phone.
I had downgraded my S8(Sprint unlocked) phone to Nougat long back because of this issue. I can't upgrade till the issue with ims doesn't get resolved on Oreo rom.

deepakrsarangi said:
This is based on rooting which I want to avoid af all times since many of my org related apps would stop working on a rooted phone.
I had downgraded my S8(Sprint unlocked) phone to Nougat long back because of this issue. I can't upgrade till the issue with ims doesn't get resolved on Oreo rom.
Click to expand...
Click to collapse
No root needed.. check new instructions dated 25th June 2018

nimms said:
No root needed.. check new instructions dated 25th June 2018
Click to expand...
Click to collapse
Thanks. Could you please post instructions for Samsung Galaxy S8? In the post files are available for S8+ & Note 8, but I have S8 (SM-G950U).
Please suggest.
Thanks.

T-Mobile to AT&T

Hi All, I'm trying to make my T-Mobile Note 9 work on AT&T. Using odin I put on the latest ATT version on my phone that I could find -- N960USQU1ARG6. It boots and works fine, but it shows Android 8.1, I don't get wifi calling or there's no place to turn on VOLTE, and when I say update software it says "software up to date." So, I'm assuming that ATT still doesn't think this is their phone.
Any ideas on how to fix this?
Thanks!

Nasty64 said:
Hi All, I'm trying to make my T-Mobile Note 9 work on AT&T. Using odin I put on the latest ATT version on my phone that I could find -- N960USQU1ARG6. It boots and works fine, but it shows Android 8.1, I don't get wifi calling or there's no place to turn on VOLTE, and when I say update software it says "software up to date." So, I'm assuming that ATT still doesn't think this is their phone.
Any ideas on how to fix this?
Thanks!
Click to expand...
Click to collapse
Att has Pie firmware for the Note 9. Just do a search for the newest Pue update and flash it using Odin.

Jammol said:
Att has Pie firmware for the Note 9. Just do a search for the newest Pue update and flash it using Odin.
Click to expand...
Click to collapse
Thanks for the response. That will fix the Wifi calling and VoLTE too?

Nasty64 said:
Thanks for the response. That will fix the Wifi calling and VoLTE too?
Click to expand...
Click to collapse
That I do not know for sure. It doesn't hurt to try though.

Jammol said:
That I do not know for sure. It doesn't hurt to try though.
Click to expand...
Click to collapse
Well, it might. I'd really like to understand what's wrong with it before I flash more.

Nasty64 said:
Well, it might. I'd really like to understand what's wrong with it before I flash more.
Click to expand...
Click to collapse
Well the first thing you could do is do a factory reset, or verify with At&t if it's a feature on your account. Not sure how theirs is setup compared to T-Mobile's Wi-Fi calling. It won't hurt to flash unless you've got stuff you need to backup and have no way to do so.
I don't think anything is wrong with your device. All of the N960U devices are the exact same. The only difference is the software. You don't even need to flash a different firmware for it to put the carrier bloat on the device based on the sim card inserted. It's already included in the Software package on the device, just dormant.

I can't see AT&T Mobility (or any carrier, really) willingly remaining in the trailing position vs. the UnCarrier (who has offered Wi-Fi Calling as a feature (even to their MVNO customers) for over a year - yes, I have had it that long personally) - the only time I don't use it is due to support of the *router* being iffy (some residential routers have issues with Voice over Wi-Fi; the same applies to some business routers).

I went to ATT as well and it took some time for me to see the update to 9. Not sure, when I was with T-Mobile it always showed updates right away. For ATT, I was able to find the ARJA firmware with a CSA7 update that expedited the process. It also took around a day for wifi calling to show up. ATT is just slow to enable things perhaps?

Samsung Galaxy S10 - Unlocked Phone (AT&T Blocked Call Issue)

So many people are reporting with the 3/1 sweep by AT&T, that they are blocking almost all Unlocked phones: See: Downdector Link We personally have a S10 (G973U1). AT&T is saying on this list: AT&T approved phone list that it is supposed to work. But like many other people "calls" end immediately, but we can text and data work. It is some sorta ploy by AT&T to force us to upgrade our phones. They want us all to upgrade to S22s. Anyway I was ranting. Anyway, if you look at that link, they are saying that the phone has to be on the latest software. The last update from AT&T or the manufacturer was in January. I checked the firmware site, and Android 11 is the latest in January. I'm wondering if there is some hack to get us on to '12' or something. An update might solve this issue. We know that a new SIM does not work. Calls seem to be rejected on the network, just based on the phone model or Android version.
We are aware that a version 12 is out there for the phone, just that firmware is not for our US-unlocked model yet. But maybe it can be hacked?
Edit: It appears this thread may be linked with this older one... But it is ever more pressing issue now:
S10 Unlocked phone with AT&T Firmware here they explain how, and the problems with flashing. This was back in 2019, so I'm not sure if this will still work. Even then it didn't work for everyone. Some in that forum claimed that it did. AT&T seems to now be blocking from their calling network any phones not enabled with VOLTE and the extended AT&T services that are not present in Unlocked phones.

robertkjr3d said:
So many people are reporting with the 3/1 sweep by AT&T, that they are blocking almost all Unlocked phones: See: Downdector Link We personally have a S10 (G973U1). AT&T is saying on this list: AT&T approved phone list that it is supposed to work. But like many other people "calls" end immediately, but we can text and data work. It is some sorta ploy by AT&T to force us to upgrade our phones. They want us all to upgrade to S22s. Anyway I was ranting. Anyway, if you look at that link, they are saying that the phone has to be on the latest software. The last update from AT&T or the manufacturer was in January. I checked the firmware site, and Android 11 is the latest in January. I'm wondering if there is some hack to get us on to '12' or something. An update might solve this issue. We know that a new SIM does not work. Calls seem to be rejected on the network, just based on the phone model or Android version.
We are aware that a version 12 is out there for the phone, just that firmware is not for our US-unlocked model yet. But maybe it can be hacked?
Edit: It appears this thread may be linked with this older one... But it is ever more pressing issue now:
S10 Unlocked phone with AT&T Firmware here they explain how, and the problems with flashing. This was back in 2019, so I'm not sure if this will still work. Even then it didn't work for everyone. Some in that forum claimed that it did. AT&T seems to now be blocking from their calling network any phones not enabled with VOLTE and the extended AT&T services that are not present in Unlocked phones.
Click to expand...
Click to collapse
I was helped by a user to achieve ascendance onto the AT&T network. I'm not sure if I'm to reveal his name. We 1) go into Developers mode on the phone. 2) Hack the Kernel. 3) Flash the rom to the G973U (model)... with the AT&T firmware. So that the Wifi-Calling and 5G features would work, and AT&T would allow it on their network.

robertkjr3d said:
I was helped by a user to achieve ascendance onto the AT&T network. I'm not sure if I'm to reveal his name. We 1) go into Developers mode on the phone. 2) Hack the Kernel. 3) Flash the rom to the G973U (model)... with the AT&T firmware. So that the Wifi-Calling and 5G features would work, and AT&T would allow it on their network.
Click to expand...
Click to collapse
I've literally been searching for an answer to this for days now. My wife and I have S10's. I work far from home so I really need her phone working in case of emergency. Can you please point me in the general direction? Thanks!

Agreed, I didn't know such a thing was possible, but I'd love to hear more about this!

skrapmetal said:
I've literally been searching for an answer to this for days now. My wife and I have S10's. I work far from home so I really need her phone working in case of emergency. Can you please point me in the general direction? Thanks!
Click to expand...
Click to collapse
At first I had to use the Samsung Band Selector app from the Play store and go into More Network Settings > AT&T > Preferred Network Type and choose 3G. Unfortunately this killed LTE so all data and calls were going through H+. As I was mostly on wifi I could live with it since I could actually use the phone again.
Then Friday morning I checked for updates and there was the update to take me to Android 12. I took the update then when it finished it said it needed to reboot to connect new SIM to carrier services....it wasn't a new SIM. I let it reboot and everything was working with VoLTE again.
Hope this helps.

KennyG123 said:
At first I had to use the Samsung Band Selector app from the Play store and go into More Network Settings > AT&T > Preferred Network Type and choose 3G. Unfortunately this killed LTE so all data and calls were going through H+. As I was mostly on wifi I could live with it since I could actually use the phone again.
Then Friday morning I checked for updates and there was the update to take me to Android 12. I took the update then when it finished it said it needed to reboot to connect new SIM to carrier services....it wasn't a new SIM. I let it reboot and everything was working with VoLTE again.
Hope this helps.
Click to expand...
Click to collapse
I appreciate you getting back to me. Unfortunately I am still on android 11 with a custom ROM and also this is a global phone so that app didnt work for me. I dont receive OTA updatez. I'll update to a new ROM and see what happens. Thanks