How to verify if your T-Mobile Services are really working (WiFi Calling, VoLTE, etc)

[TEKHD]

Wifi Calling, VoLTE, Video Calling, HD Voice, RCS, Advanced Messaging, etc...

Why Verify? (Reasons):

- If you are using a S8/S8+ SM-G955F/FD Exynos variant on T-Mobile USA and you want to confirm/verify or activate some services... (CSC/Configuration Troubleshooting)
- If you are using a S8/S8+ SM-G955U Snapdragon on T-Mobile USA with another non standard T-Mobile Firmware like Canadian XAC, USA Unlocked XAA, etc... and want to confirm... verify.
- If you are using a S8/S8+ SM-G955U Snapdragon on T-Mobile USA and simply want to make sure everything is working correctly.
- DEV/ROM Troubleshooting

Download & Install Shortcut Master then follow the steps below:

STEP-1 - 1st Make sure you are on LTE! then... follow pictures bellow.

STEP-2 (U Variant)

STEP-2 (F/FD Variant)

STEP-3

STEP-4

This is how a regular T-Mobile device should look... with ALL T-Mobile Services working... (Wifi Calling, VoLTE, Video Calling, HD Voice, RCS, Advanced Messaging, etc...)

Example: International S8+ SM-G955F with modified ROM/CSC

This is an example of a NON T-Mobile device with some T-Mobile Services working... (Wifi Calling, VoLTE, Video Calling & HD Voice)

Hope this helps...

TEKHD

 

[crazynewfie]

Hey tekhd nice to see you here. I'm on 955F in Canada and I would like to have these services Wi-Fi calling volte, video calling on my rooted 955F. How can I do That? I know tmobile and Canadian roms are simaliar. When I use your method above it says no csc binary found.

Sent from my SM-G955F using Tapatalk

 

[TEKHD]

Hey tekhd nice to see you here. I'm on 955F in Canada and I would like to have these services Wi-Fi calling volte, video calling on my rooted 955F. How can I do That? I know tmobile and Canadian roms are simaliar. When I use your method above it says no csc binary found.

Sent from my SM-G955F using Tapatalk

Haven't tested Canadian services on F variant... but... we can try flashing Canadian CSC/APK Services. My XDA mailbox quota is way above, can't use it. Need to solve Mailbox problem ASAP. Contact me HERE for now.

 

[crazynewfie]

Haven't tested Canadian services on F variant... but... we can try flashing Canadian CSC/APK Services. My XDA mailbox quota is way above, can't use it. Need to solve Mailbox problem ASAP. Contact me HERE for now.

Ok. I just sent a message.

Sent from my SM-G955F using Tapatalk

 

[d.cortez]

@TEKHD - wanted to confirm that your directions to access the IMS information screen to confirm configuration settings works with the F/D variant using an ATT CSC. i'm still having issues getting Video calling and WiFi calling to work probably because ATT has my IMEI from my S6 Active associated with my account (vs. my FD IMEI).

 

[dynospectrum]

@TEKHD Will S8_TMO_PACKv3.zip work with AQEB? Thank you so much for the guides!

 

[TEKHD]

@TEKHD - wanted to confirm that your directions to access the IMS information screen to confirm configuration settings works with the F/D variant using an ATT CSC. i'm still having issues getting Video calling and WiFi calling to work probably because ATT has my IMEI from my S6 Active associated with my account (vs. my FD IMEI).

Yes, you should be able to see your IMS registration with AT&T. Yes, as you mentioned, the problem with AT&T is that they block/prevent IMS registration for certain services because of your IMEI. If the IMEI is from a non AT&T device, they will simply reject IMS registration. Now, in your case, I think the S6 Active IMEI should work fine, I think the problem is your FD variant. International Dual sim models (FD) can't easily register unless you make some heavy software/CSC modifications. For example, I can get WiFi Calling, VoLTE, Video Calling & HD Voice on my S8+ F variant, but only VoLTE & HD Voice on my S8+ FD variant. It is hard to actually have all services running on a dual sim variant. But... it is not impossible because I have WiFi Calling, VoLTE, Video Calling & HD Voice on my S7 Edge FD variant. Hope this helps my friend.

@TEKHD Will S8_TMO_PACKv3.zip work with AQEB? Thank you so much for the guides!

Hello there dynospectrum, I also remember you, lol. I honestly can't confirm (not tested yet) but I don't see why not. Unless the firmware is very different, I think it should work. I will later update to latest firmware and re-test the pack (and post results)

 

[dynospectrum]

Hello there dynospectrum, I also remember you, lol. I honestly can't confirm (not tested yet) but I don't see why not. Unless the firmware is very different, I think it should work. I will later update to latest firmware and re-test the pack (and post results)

Many thanks. Very happy to see you here on the S8+ forums. Your knowledge is priceless ;]

 

[milojoseph]

Your back! Hope all is well and hope the path Samsung is taking with making root harder hasn't discourage you!

 

[Idan73]

Hey tekhd nice to see you here. I'm on 955F in Canada and I would like to have these services Wi-Fi calling volte, video calling on my rooted 955F. How can I do That? I know tmobile and Canadian roms are simaliar. When I use your method above it says no csc binary found.

Sent from my SM-G955F using Tapatalk

If you are with Rogers, I can tell you right now, no dice.
Since the introduced wifi calling and voice over lte, they implemented imei based discrimination, to allow connections, only with their own devices.
I tested in the past with note 5 tmobile and s7 edge f variant. Loading Rogers csc does set all propper IMS settings, but alas once it syncs and does the check with the tower it disconnects. To get it temporarily back you have to put your sim in Rogers device and give it few minutes. Once it is all up and running, putting sim in non Rogers phone connects to everything fine, for one to ten minutes, then it is disabled again.
Maybe you can con your way into CSR adding your imei into Rogers database, the way they regularly do with Apple bought iPhone, but alas I was never able to.

Unless they change the policy, that is the state of things.

Sent from my SM-G935W8 using XDA-Developers Legacy app

 

[hellsgods91]

I need a flashable csc for my att s8+ to have the ims work on t mobile anyone able to help I'm sim unlocked and using t mobile but none of that **** is work

 

[vicvon]

Any chance I could get someone to screenshot the verizon firmware like on the front page? I am trying to set up the U1 firmware to get wifi calling and video calling on verizon. I think it might help if I have a reference.
Thank You to anyone able to do this for me.

 

[DeeXii]

Does band 12 work on T-Mobile (USA)?

 

[Rydah]

Wait, I'm confused. I'm on a T-Mobile variant running the XAA unlocked firmware and of course lost video calling and RCS features. I was able to get to the IMS menu and it shows no registered profiles. Any way I can register one and get it working?

Okay, rebooted and it shows registered now. It only has the minimal of options available. (WiFi calling, volte, he voice) Any way to get RCS and video calling working? I'm on a T-Mobile variant running the unlocked firmware (XAA). I've check marked all options for RCS and video chat but they didn't work. The video chat option in the dialer did appear though.

Edit: to be more clear, my setup looks similar to the last screenshot in OP although I'm on a SM-G955U running XAA firmware.

Sent from my SM-G955U1 using Tapatalk

 

[notmilk]

Can someone please help me clarify something here.

I have a Verizon Galaxy 8+, I flashed it with the Unlocked Firmware with CSC_HOME, no user data

I'd like to use it on T-Mobile with all of the carrier features. for starter Video calling is currently not working, what am I doing wrong here?

 

[PrudhviRaj01]

How to enable volte,it shows false for everything? Im using sm g955u1 sim unlocked..can someone help me?

 

[MrSteelX]

From what i see. Would it be possible to add all the profiles from 1 provider to another to get most if not all features working.

Sent from my Galaxy S8 using XDA Labs

 

[wpnz]

Thank you for this, was able to enable video over LTE, and RCS. On my Unlocked (USA) S8+

Ok Seems Video Over LTE is enabled, but not working.

 

[samcex]

@TEKHD Can I use this app on an Exynos International unlocked S8+ To change logo from 4G to show LTE ? Thanks.

 

[Goliath27]

Unable to install it. I downloaded it and when I open it, it just says failed to open. Doesn't even get to the install screen.

Sent from my SM-G950U1 using Tapatalk