How to use AT&T VOLTE and WiFi Calling? - T-Mobile Samsung Galaxy S6 Edge+

Hi everyone, I'm on an unlocked/rooted/xposed G928T on AT&T, and I'm wondering if it's possible to enable those features through my AT&T SIM. When I enable WiFi Calling in settings, it simply pops up an "invalid SIM" error as I'm not a T-Mobile customer.
Furthermore, even though I have the proper APN set up and AT&T has an iPhone 6+ IMEI in the system for my SIM (so VOLTE is set up on their end), I can't seem to get VOLTE to work either.
Any ideas? Perhaps I need a system dump of the AT&T version to piece it all together?
Thanks in advance!

First is to make sure you have a UICC-G sim. The 9th and 10th digits of a VoLTE-capable UICC-G SIM card will be either 27 or 28.

@cblackledge Thanks for the reply, however I used this SIM in my iPhone 6 Plus and VOLTE functioned without problems.
No such luck here, however :/

@SolarTrans did you go into to phone setting and cut it on
Sent from my SM-G928T using Tapatalk

bremos812 said:
@SolarTrans did you go into to phone setting and cut it on
Sent from my SM-G928T using Tapatalk
Click to expand...
Click to collapse
Wait "cut it on"? Not really sure what you mean haha

Related

SIM Unlock LG G Pad 8.3 VK810 Verizon to AT&T

I have been searching and cant seem to find anything... :/
I am trying to SIM Unlock my LG G Pad 8.3 Model VK810 that is Verizon and should come factory unlock I believe. I need this to be used on AT&T LTE which I have a sim card for and a tablet plan on the shared data plan.
It is on 4.2.2 baseband is m9615a-cefwtazm
I tried adding some ATT APN settings I found, but that did not help me. I think I need to Change it to GSM From CDMA somehow? I am not really sure. I can update and root if needed or whatever I need to do. I also have a samsung z3x box, but dont think it will work on the LG.
Any help would really help me out! Thank you in advance.
jaredlappa said:
I have been searching and cant seem to find anything... :/
I am trying to SIM Unlock my LG G Pad 8.3 Model VK810 that is Verizon and should come factory unlock I believe. I need this to be used on AT&T LTE which I have a sim card for and a tablet plan on the shared data plan.
It is on 4.2.2 baseband is m9615a-cefwtazm
I tried adding some ATT APN settings I found, but that did not help me. I think I need to Change it to GSM From CDMA somehow? I am not really sure. I can update and root if needed or whatever I need to do. I also have a samsung z3x box, but dont think it will work on the LG.
Any help would really help me out! Thank you in advance.
Click to expand...
Click to collapse
As it seems you are comfortable messing with your APN settings that should be all you will need to do. The device is locked to specific wireless frequencies but luckily for you at &t uses the same LTE frequencies. You will need to have root access in order to write your APN settings though, check the forums for information on that. Finally make sure that the sim you have is compatible with your tablet data plan, and your APN settings should be as follows for mobile data only.
APN: BROADBAND
MCC: 310
MNC: 410
uprightbass360 said:
As it seems you are comfortable messing with your APN settings that should be all you will need to do. The device is locked to specific wireless frequencies but luckily for you at &t uses the same LTE frequencies. You will need to have root access in order to write your APN settings though, check the forums for information on that. Finally make sure that the sim you have is compatible with your tablet data plan, and your APN settings should be as follows for mobile data only.
APN: BROADBAND
MCC: 310
MNC: 410
Click to expand...
Click to collapse
Happen to have a link for a Root tutorial and ROM that is good and stable for my Vk810? Will the V500 work with my pad?
I was looking at this one: http://forum.xda-developers.com/showthread.php?t=2660676
Thank you.
jaredlappa said:
Happen to have a link for a Root tutorial and ROM that is good and stable for my Vk810? Will the V500 work with my pad?
I was looking at this one: http://forum.xda-developers.com/showthread.php?t=2660676
Thank you.
Click to expand...
Click to collapse
I do not, I am sure you will find something if you look around. The V500 and V510 methods are not compatible. There is a method for yours though along with a custom recovery in the works. You may even have a custom rom in the near future.
P.S. this topic belongs in Q/A and not development.
uprightbass360 said:
I do not, I am sure you will find something if you look around. The V500 and V510 methods are not compatible. There is a method for yours though along with a custom recovery in the works. You may even have a custom rom in the near future.
P.S. this topic belongs in Q/A and not development.
Click to expand...
Click to collapse
Why would it belong in Q/A? If I am having to root and unlock it or do custom recovery? Isn't that with development?
Sorry if I have posted in the wrong place.
Here is the link I found for Rooting: http://forum.xda-developers.com/showthread.php?t=2703825
From researching it looks like it will work with the VK810.
This was also newly released: http://forum.xda-developers.com/showthread.php?t=2726707
But there are no custom roms that I have found yet.
So, I should Root this and then change the APN settings to what you told me and my ATT SIM would work?
Thank you!
jaredlappa said:
Why would it belong in Q/A? If I am having to root and unlock it or do custom recovery? Isn't that with development?
Sorry if I have posted in the wrong place.
Here is the link I found for Rooting: http://forum.xda-developers.com/showthread.php?t=2703825
From researching it looks like it will work with the VK810.
This was also newly released: http://forum.xda-developers.com/showthread.php?t=2726707
But there are no custom roms that I have found yet.
So, I should Root this and then change the APN settings to what you told me and my ATT SIM would work?
Thank you!
Click to expand...
Click to collapse
I haven't read much about i0root but it looks like it will work. Now the next part is not certain weather or not it will work, but I have seen tablets able to run on other networks that are unlocked. As long as Verizon did not implement any extra protection you should be able to use an at&t sim that is enabled for tablet data.
Once you are rooted go pick up es file explorer and navigate to /system/etc/apns-conf.xml . Make sure that before you change anything that you make a copy and name it something else so you can find it again if you have to go back. Open the file using the text editor. You can get rid of the other apns and just put your new one in there and give it a reboot. It should kick right on after you reboot. Good luck!
uprightbass360 said:
I haven't read much about i0root but it looks like it will work. Now the next part is not certain weather or not it will work, but I have seen tablets able to run on other networks that are unlocked. As long as Verizon did not implement any extra protection you should be able to use an at&t sim that is enabled for tablet data.
Once you are rooted go pick up es file explorer and navigate to /system/etc/apns-conf.xml . Make sure that before you change anything that you make a copy and name it something else so you can find it again if you have to go back. Open the file using the text editor. You can get rid of the other apns and just put your new one in there and give it a reboot. It should kick right on after you reboot. Good luck!
Click to expand...
Click to collapse
I have an LG G PAD 8.3 VK810 Verizon that I am trying to root in order to SIM unlock from Verizon to ATT.
I have installed the Drivers packages here and it finds the drivers in USB Modes: Charge tablet and media sync fine, but when I go to Internet Connection mode and choose ethernet it can not find the following drivers: CDC ECM, CDC SERIAL, AND 3 THAT SAY LGE ANDROID PHONE.
Any ideas on how to get these drivers installed to try the next step? I tried to go ahead and run the iroot program but it can not find the device.
Thank you for the help.
I have installed a T-Mobile SIM card in my LG GPad 8.3 LTE so I could get the free gig of data they offer existing customers. It worked without rooting. All I did was add a new APN with the proper T-Mobile settings and I was able to surf. Did it right there at the T-Mobile store with the rep to verify it would work before I added the data line to my account.
Sent from my HTC6525LVW using XDA Premium 4 mobile app
That's awesome. I love what tmobile is doing to the phone industry. I love their aggressive stance now on grabbing customers.
Sent from my Nexus 5
jlczl said:
I have installed a T-Mobile SIM card in my LG GPad 8.3 LTE so I could get the free gig of data they offer existing customers. It worked without rooting. All I did was add a new APN with the proper T-Mobile settings and I was able to surf. Did it right there at the T-Mobile store with the rep to verify it would work before I added the data line to my account.
Sent from my HTC6525LVW using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Thx for the tip. The tablet is set to LTE mode and since T-Mobile LTE has the same band with Verizon LTE. It definitely works on T-Mobile.
For AT&T, no luck even if rooted. I used Radio Switcher app to go to the Tablet Info in Testing Mode. But it displays error message "This application does not work on this device".
ttn1185 said:
Thx for the tip. The tablet is set to LTE mode and since T-Mobile LTE has the same band with Verizon LTE. It definitely works on T-Mobile.
For AT&T, no luck even if rooted. I used Radio Switcher app to go to the Tablet Info in Testing Mode. But it displays error message "This application does not work on this device".
Click to expand...
Click to collapse
I rooted and popped in an AT&T sim card and it let's me put in the APN fine.
Sent from my HTC One_M8 using XDA Free mobile app
Skizzy034 said:
I rooted and popped in an AT&T sim card and it let's me put in the APN fine.
Sent from my HTC One_M8 using XDA Free mobile app
Click to expand...
Click to collapse
But that is not my problem. The tablet doesn't pick up AT&T signal
ttn1185 said:
But that is not my problem. The tablet doesn't pick up AT&T signal
Click to expand...
Click to collapse
Easy...
Vk810 supports lte bands 4(aws) and 13 (700mhz block c), bands that Verizon uses
T-Mobile uses band 4 for lte mainly, will use band 2 (1900) and 12 (700 MHz block a) in the future as well. Vk810 will work on T-Mobile wherever tmobile has LTE right now (with band 4)
Att uses band 4, 2 (1900), 17(700mhz block b) and 30(2300mhz). Vk810 will only work on att if at uses band 4. If att only used band 2 in your area, your att phone (which supports band 2) will show LTE, but vk810 won't work
I don't know if there is a map showing which bands att uses in your area. There is a spectrum map showing who owns which band in which region, but no guarantee that att has active cell sites
http://specmap.sequence-omega.net
Tmobile sim on verizon g pad
jlczl said:
I have installed a T-Mobile SIM card in my LG GPad 8.3 LTE so I could get the free gig of data they offer existing customers. It worked without rooting. All I did was add a new APN with the proper T-Mobile settings and I was able to surf. Did it right there at the T-Mobile store with the rep to verify it would work before I added the data line to my account.
Sent from my HTC6525LVW using XDA Premium 4 mobile app
Click to expand...
Click to collapse
How were you able to set up up the G Pad with the tmobile sim ? I went to the tmobile store and they were not able to get service running. What settings did you use ? Any help would be appreciated.
jlanderos93 said:
How were you able to set up up the G Pad with the tmobile sim ? I went to the tmobile store and they were not able to get service running. What settings did you use ? Any help would be appreciated.
Click to expand...
Click to collapse
you need to insert sim, reboot device (it'll prompt you to)
then you need to add the t-mobile APNs to the device
the settings below should work
http://forum.xda-developers.com/showthread.php?t=2240233
paperWastage said:
you need to insert sim, reboot device (it'll prompt you to)
then you need to add the t-mobile APNs to the device
the settings below should work
http://forum.xda-developers.com/showthread.php?t=2240233
Click to expand...
Click to collapse
I see people here say this tablet is unlocked. I rooted & inserted an at&t sim, but not working. It shows a greyed out singnal bar and a circle next to it. Then I edited build.prop ro.build.target_operator=VZN to OPEN. Now the circle is gone leaving a greyed out signal bar with small red x above it. I'm on 4.2.2. Can someone elaborate?
mrgj said:
I see people here say this tablet is unlocked. I rooted & inserted an at&t sim, but not working. It shows a greyed out singnal bar and a circle next to it. Then I edited build.prop ro.build.target_operator=VZN to OPEN. Now the circle is gone leaving a greyed out signal bar with small red x above it. I'm on 4.2.2. Can someone elaborate?
Click to expand...
Click to collapse
what region/location are you in?
believe that circle = battery indicator, not network indicator.... full circle = 100% battery, otherwise not 100% battery
mrgj said:
I see people here say this tablet is unlocked. I rooted & inserted an at&t sim, but not working. It shows a greyed out singnal bar and a circle next to it. Then I edited build.prop ro.build.target_operator=VZN to OPEN. Now the circle is gone leaving a greyed out signal bar with small red x above it. I'm on 4.2.2. Can someone elaborate?
Click to expand...
Click to collapse
I'm not sure if this works on at&t. Mine is working on T-Mobile. All I did was insert the T-Mobile SIM and APN settings for it to work.
Sent from my HTC6525LVW using XDA Premium 4 mobile app
jlczl said:
I'm not sure if this works on at&t. Mine is working on T-Mobile. All I did was insert the T-Mobile SIM and APN settings for it to work.
Sent from my HTC6525LVW using XDA Premium 4 mobile app
Click to expand...
Click to collapse
as I said before...
this device is unlocked... it accepts any SIMs, and works w/ any band 4/13 network
AT&T's network accept any device that's approved for GSM/LTE spec, and compatible with their band 2/4/17/30 network.
AT&T doesn't have band 4 everywhere.. for example, no band 4 in nyc region.... this device won't work on at&t in nyc
paperWastage said:
as I said before...
this device is unlocked... it accepts any SIMs, and works w/ any band 4/13 network
AT&T's network accept any device that's approved for GSM/LTE spec, and compatible with their band 2/4/17/30 network.
AT&T doesn't have band 4 everywhere.. for example, no band 4 in nyc region.... this device won't work on at&t in nyc
Click to expand...
Click to collapse
LOL, I know it's unlocked. I'm using it on T-Mobile without a problem. And yes, I read your previous post. I was just answering what I personally know firsthand.
Sent from my HTC6525LVW using XDA Premium 4 mobile app

Phone Stuck Showing "Searching / No Service"

Hello all. I purchased a edge+ today but whenever I insert a sim, the phone stays on searching. I made sure that I rebooted the device and I also tried re-seating the sim many times. I believe the device is unlocked and the imei/esn is in clean standing with T-Mobile. I tried a MetroPCS sim card and it stayed on searching, same thing happened with a Verizon sim. However when I inserted the T-Mobile sim, it sometimes says no service but ever since I rebooted the device, it stays on "searching" no matter which sim is installed. I find this whole ordeal frustrating since the signal bars show up for the MetroPCS and T-Mobile sim but with Verizon nothing happens. Any help would be greatly appreciated.
Yours is G928T? If yes, it does not support Verizon/Sprint even if it's unlocked.
Did you buy it off of Craigslist/Ebay? It might be blacklisted. checkesnfree.com
knite75 said:
Yours is G928T? If yes, it does not support Verizon/Sprint even if it's unlocked.
Did you buy it off of Craigslist/Ebay? It might be blacklisted. checkesnfree.com
Click to expand...
Click to collapse
Yes, it's the G928T but it's not blacklisted I checked. The simcards I was using on the phone were old ones(no longer in service) I thought they would work. I used a scissor to cut my WORKING sim and placed it in the phone and it took the MetroPCS sim. Everything works fine now except calls and text only work with WiFi Calling on. If I turn off WiFi, I can't text or make calls(not on registered network) but if I turn the WiFi back on, it works fine. Any suggestions?
MetroPCS and T-Mobile are on the same network.
Check/add MetroPCS APN.
Setting -> Mobile Networks -> Access Point Names
Add MetroPCS APN if it's not there.
gazasalim said:
Yes, it's the G928T but it's not blacklisted I checked. The simcards I was using on the phone were old ones(no longer in service) I thought they would work. I used a scissor to cut my WORKING sim and placed it in the phone and it took the MetroPCS sim. Everything works fine now except calls and text only work with WiFi Calling on. If I turn off WiFi, I can't text or make calls(not on registered network) but if I turn the WiFi back on, it works fine. Any suggestions?
Click to expand...
Click to collapse
knite75 said:
MetroPCS and T-Mobile are on the same network.
Check/add MetroPCS APN.
Setting -> Mobile Networks -> Access Point Names
Add MetroPCS APN if it's not there.
Click to expand...
Click to collapse
Yeah I know they are which baffles me as to why it isn't working. I tried adding a custom APN but same thing happens. I get calls/sms on WiFi but if I turn it off I get "No Service"
Just go to metro and get a new Sim. You could have damaged it by cutting it. It should be free. ATT gives me then free all the time. Usually, the phone will just auto update the apn settings when a specific carriers Sim is inserted
Sent from my SM-G928T using Tapatalk
erick161 said:
Just go to metro and get a new Sim. You could have damaged it by cutting it. It should be free. ATT gives me then free all the time. Usually, the phone will just auto update the apn settings when a specific carriers Sim is inserted
Sent from my SM-G928T using Tapatalk
Click to expand...
Click to collapse
I went and it turns out the device is blacklisted. This whole time I was rolling with the imei in the phone, after checking last night, I noticed that the imei on the back of the device differs from the one that's actually on the software. I was able to get in touch with the seller and he's coming back to give me my money back. Guess a mod can mark this thread closed.

Does the N930FD have the option to enable wifi calling

Hello, can anyone tell me if there is an option to enable wifi calling on the N930FD. If there is, it should be found in the dialer>3 dot button>settings then scroll to the bottom. Thanks in advance.
Sent from my SM-N930W8 using XDA-Developers mobile app
Is this for T-Mobile? Were you able to use wifi-calling eventually?
No I was asking for Rogers in Canada. However, since there were no responses I stayed with the N930W8 Canadian model because wifi calling is a must for me due to poor reception in my area.
balpreetsaini said:
No I was asking for Rogers in Canada. However, since there were no responses I stayed with the N930W8 Canadian model because wifi calling is a must for me due to poor reception in my area.
Click to expand...
Click to collapse
If it's like the S7 Edge Duos then the sim card that you want to do wifi calling from has to be in sim1. If you put it in the sim2 slot then it won't work. I don't remember why this was as I returned the S7 version in favor of the Note 7 and just getting it unlocked ASAP.
If you have the setting I should think so. Open your dialer app and go to settings, it should be the bottom setting. I know it is with mine here in the UK.

AT&T wifi calling and VoLTE?

Will this be available for the Pixel 2 on AT&T?
jtl6060 said:
Will this be available for the Pixel 2 on AT&T?
Click to expand...
Click to collapse
Most likely not....I have the N6P and it doesn't for work for me. They basically refuse to provision an account with the enhanced services like wifi calling and volte if you didn't buy the phone from them. They are the only remaining carrier that I know of that doesn't allow use of the enhanced services when you BYOD.
I have a theory though.....if you get a phone that they sell that has the enhanced capabilities and have them turn the services on...then you swap out the Sim and put that Sim in your pixel 2xl it should work.....
I thought about doing it but I don't need wifi calling and the VoLte and enhanced sms only work if the person on the other end has the same carrier and capable phone and the features turned on....so didn't think it was worth it try try out.
bsg411 said:
Most likely not....I have the N6P and it doesn't for work for me. They basically refuse to provision an account with the enhanced services like wifi calling and volte if you didn't buy the phone from them. They are the only remaining carrier that I know of that doesn't allow use of the enhanced services when you BYOD.
I have a theory though.....if you get a phone that they sell that has the enhanced capabilities and have them turn the services on...then you swap out the Sim and put that Sim in your pixel 2xl it should work.....
I thought about doing it but I don't need wifi calling and the VoLte and enhanced sms only work if the person on the other end has the same carrier and capable phone and the features turned on....so didn't think it was worth it try try out.
Click to expand...
Click to collapse
It has to be a Google issue wether it's certifications or license issue. Someone much more in touch with how it all works would probably have a better answer. Purchased my wife's iPhone 8 unlocked (not carrier specific) from Apple directly not through AT&T. Her WiFi calling works. I'm also on the 6P and upgrading to Pixel 2XL even if it doesn't work? I guess I could try to put her sim into my phone when I get it.
jtl6060 said:
It has to be a Google issue wether it's certifications or license issue. Someone much more in touch with how it all works would probably have a better answer. Purchased my wife's iPhone 8 unlocked (not carrier specific) from Apple directly not through AT&T. Her WiFi calling works. I'm also on the 6P and upgrading to Pixel 2XL even if it doesn't work? I guess I could try to put her sim into my phone when I get it.
Click to expand...
Click to collapse
Trust me...I have researched this extensively. I forgot to mention and serveral several rep confined this..... the only non att branded device they allow to use thier enhanced services is the iPhone bought straight from apple....no Android phones.
Yeah pixel 2 xl not working with enhanced voice. From what I heard the only reason it works with the iPhone is because Apple sets their own rules not the carriers. I think it's crap what they do. Verizon services usually work fine and tmobile works great too but coverage is spotty. I switched from T-Mobile to AT&T and love the coverage just miss being able to buy unlocked phones that will work with volte mainly don't really care for Wi-Fi calling.
My Pixel 2 XL on Oreo 8.1 seems to already have VoLTE enabled.
View attachment 4317131
vpkb said:
My Pixel 2 XL on Oreo 8.1 seems to already have VoLTE enabled.
View attachment 4317131
Click to expand...
Click to collapse
On which network?
psg190 said:
On which network?
Click to expand...
Click to collapse
AT&T
vpkb said:
AT&T
Click to expand...
Click to collapse
Nice. Still no WiFi calling though, correct?
I'm a hack. Now see the grayed out button in your image.
vpkb said:
My Pixel 2 XL on Oreo 8.1 seems to already have VoLTE enabled.
View attachment 4317131
Click to expand...
Click to collapse
When you place a call does it still drop to HSPA though?
Would you be willing to place a call and provide a screenshot? I'm really hoping att enabled this.
THEGAMEPLAY94 said:
When you place a call does it still drop to HSPA though?
Would you be willing to place a call and provide a screenshot? I'm really hoping att enabled this.
Click to expand...
Click to collapse
If you call AT&T and get them to provision your IMEI for HD calling, it does indeed work.
EDIT: I should also add, your SIM card serial number last two digits (digits 9 and 10) MUST be greater than 27.
If they are not, you will need to get a new SIM card from AT&T.
THEGAMEPLAY94 said:
When you place a call does it still drop to HSPA though?
Would you be willing to place a call and provide a screenshot? I'm really hoping att enabled this.
Click to expand...
Click to collapse
Mine stays on LTE !
Go into the 4636 menu and see if it's provisioned. It was for me on vz. If it is, go into contacts and press on the 3 dots in the upper right corner. In the settings tab, there is a toggle for wifi calling.
I can confirm that VoLTE works. I contacted AT&T Tech Support this morning and specifically requested for them to update the IMEI # and provision VoLTE (HD Calling). I placed a test call and it sounded great, and stayed on LTE.
Additionally, I requested they Provisioned Wi-Fi calling. The Tech advised the Pixel 2 XL is not compatible but said he provisioned it on the line anyway. I don't think it's working though since it doesn't show that it's provisioned on the device information.
psg190 said:
Nice. Still no WiFi calling though, correct?
I'm a hack. Now see the grayed out button in your image.
Click to expand...
Click to collapse
Here you go, see the HD in the screenshot, and yes, Wi-Calling still DOES NOT work. The AT&T Tech was kind to provision it anyway, maybe Google needs to turn it on as well.
uicnren said:
If you call AT&T and get them to provision your IMEI for HD calling, it does indeed work.
EDIT: I should also add, your SIM card serial number last two digits (digits 9 and 10) MUST be greater than 27.
If they are not, you will need to get a new SIM card from AT&T.
Click to expand...
Click to collapse
That would be the middle digits then right? My SIM card is 20 digits, but digits 9 and 10 are 27.
vpkb said:
Here you go, see the HD in the screenshot, and yes, Wi-Calling still DOES NOT work. The AT&T Tech was kind to provision it anyway, maybe Google needs to turn it on as well.
View attachment 4319415
Click to expand...
Click to collapse
You have to be on 8.1 for VoLTE to work anyway right?
sabbotage said:
That would be the middle digits then right? My SIM card is 20 digits, but digits 9 and 10 are 27.
You have to be on 8.1 for VoLTE to work anyway right?
Click to expand...
Click to collapse
if you physically look at the SIM, there is 2 rows of 10 digits, the top row, last 2 digits.
Yours should be fine,
I didnt check on 8.0, but I also didnt see the volte setting in advanced, so Im guessing it is only 8.1 right now.
uicnren said:
if you physically look at the SIM, there is 2 rows of 10 digits, the top row, last 2 digits.
Yours should be fine,
I didnt check on 8.0, but I also didnt see the volte setting in advanced, so Im guessing it is only 8.1 right now.
Click to expand...
Click to collapse
Ahhh ok. Yeah my top row on my SIM card ends with 27. I already had AT&T swap my IMEI on the SIM card since I moved it to my P2 XL from my old Pixel XL. I guess I'll have to ask them to provision VoLTE on my account now too.
Sent from my Pixel 2 XL using Tapatalk
I'm giving this a shot too considering they're advertising the welcoming of the Pixel 2 lineup. It's simply all about whitelisting so they should make this happen!
https://www.att.com/plans/google-pixel.html
The hardware obviously allows it. It's just a matter of AT&T adding the IMEI to their advanced calling lists.
Got them to add this to my account and I'm good to go. I wonder if we'll ever get WiFi calling

Samsung s8 plus wifi calling on T-Mobile

I purchased my s8 plus in Kuwait city from the Samsung store. Just got it on the the T-Mobile network and the Wi-Fi calling will not even show up as an option. This is a no go for me, so what options do i have? Hiw can this be fixed
YukonJoe said:
I purchased my s8 plus in Kuwait city from the Samsung store. Just got it on the the T-Mobile network and the Wi-Fi calling will not even show up as an option. This is a no go for me, so what options do i have? Hiw can this be fixed
Click to expand...
Click to collapse
i had a similar problem. after a software update was applied automatically, I lost wifi calling b/c my inserted SIM is not tmobile despite the device being unlocked. So, I inserted a tmobile sim and used ODIN to flash the latest stock firmware, and then i got wifi calling back. I'd test it first with a Tmobile sim (i bought one off ebay) and then restart the device. If that doesn't fix it, you may have to reflash stock firmware like I did.
jt1998 said:
i had a similar problem. after a software update was applied automatically, I lost wifi calling b/c my inserted SIM is not tmobile despite the device being unlocked. So, I inserted a tmobile sim and used ODIN to flash the latest stock firmware, and then i got wifi calling back. I'd test it first with a Tmobile sim (i bought one off ebay) and then restart the device. If that doesn't fix it, you may have to reflash stock firmware like I did.
Click to expand...
Click to collapse
I have a T-Mobile SIM installed right now, I've shut it off and restarted numerous times. I've never used ODIN nor flashed firmware. Where would I get the correct software to do this? Also, would it make a difference if my phone is an international dual SIM?
YukonJoe said:
I have a T-Mobile SIM installed right now, I've shut it off and restarted numerous times. I've never used ODIN nor flashed firmware. Where would I get the correct software to do this? Also, would it make a difference if my phone is an international dual SIM?
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Software and instructions are here on xda in our device forum thread.
I'm unsure about your device. Dual sim intl version is definitely a different beast. You may want to ask in that forum... Sorry.
Sent from my SM-G955U using Tapatalk
YukonJoe said:
I have a T-Mobile SIM installed right now, I've shut it off and restarted numerous times. I've never used ODIN nor flashed firmware. Where would I get the correct software to do this? Also, would it make a difference if my phone is an international dual SIM?
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Click to collapse
I had a similar problem and couldn't even find the wi-fi calling option, let alone enable it. Here's how I fixed it: I enabled Bixby and updated it. Then I said "Hey Bixby, enable wi-fi calling..." and not only did Bixby enable it, she located the settings. The setting lives under "Call Settings" which isn't accessible in any other way than by using Bixby (at least from what I can see).
Now wi-fi calling is enabled and I now have a whole host of additional call settings available to me.
Hope this helps.
littlemixi13 said:
I had a similar problem and couldn't even find the wi-fi calling option, let alone enable it. Here's how I fixed it: I enabled Bixby and updated it. Then I said "Hey Bixby, enable wi-fi calling..." and not only did Bixby enable it, she located the settings. The setting lives under "Call Settings" which isn't accessible in any other way than by using Bixby (at least from what I can see).
Now wi-fi calling is enabled and I now have a whole host of additional call settings available to me.
Hope this helps.
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What network and sim are you using?
Sent from my SM-G955U using Tapatalk
jt1998 said:
What network and sim are you using?
Sent from my SM-G955U using Tapatalk
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I'm using a TMobile SIM on the TMobile network. The settings are stock Android (not TMobile) but they can only be accessed by using Bixby. They aren't found by browsing Settings or searching the phone.
I've made several successful WiFi calls since

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