SM-G950F International Version on T-Mobile US - VoLTE, WiFi Calling fix??? - Samsung Galaxy S8 Questions and Answers

Does anyone know if I were to flash the latest Germany T-Mobile firmware (DTM) from Sammobile, would that enable VoLTE, WiFi Calling here in the US?
Currently my G950F S8 has the Australian (XSA) firmware installed and it doesn't have VoLTE or WiFi Calling.
The WiFi Calling setting in Quick Tile is greyed out.
When I ordered the phone in June 2017 it came with the Panama firmware on it. I was on AT&T back then and I flashed it to the Australian firmware so I could get Samsung Pay to work.
But Samsung Pay Australia wouldn't let me put in all my CC's, so I just use Google Pay now and I don't really care about Samsung Pay anymore.
Now that I'm on T-Mobile since March 2019, I feel that it's more important to get VoLTE and WiFi calling to work and since there are T-Mobile firmware's on Sammobile, I thought that maybe flashing to the German, Czech, or Polish T-Mobile firmware might fix things up. Hopefully someone out there has experimented with this and could give me some feedback.

Mhjeff301 said:
Does anyone know if I were to flash the latest Germany T-Mobile firmware (DTM) from Sammobile, would that enable VoLTE, WiFi Calling here in the US?
Currently my G950F S8 has the Australian (XSA) firmware installed and it doesn't have VoLTE or WiFi Calling.
The WiFi Calling setting in Quick Tile is greyed out.
When I ordered the phone in June 2017 it came with the Panama firmware on it. I was on AT&T back then and I flashed it to the Australian firmware so I could get Samsung Pay to work.
But Samsung Pay Australia wouldn't let me put in all my CC's, so I just use Google Pay now and I don't really care about Samsung Pay anymore.
Now that I'm on T-Mobile since March 2019, I feel that it's more important to get VoLTE and WiFi calling to work and since there are T-Mobile firmware's on Sammobile, I thought that maybe flashing to the German, Czech, or Polish T-Mobile firmware might fix things up. Hopefully someone out there has experimented with this and could give me some feedback.
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If you are rooted, you can always flash a custom rom and then the ATT & TMO detonator.
I flashed HadesROM and chose TMO as my CSC. I am using wifi calling with TMO in the USA.
I am sure you can do something similar for TMO in Germany.
Other option is to use any other custom rom and then use the detonator package to change your CSC. Not 100% sure the detonator package will work with stock. You need to be rooted though.

Related

[Q] EE Wifi Calling (UK)

I have an Galaxy S5 900F on EE but the WiFi calling option is not shown. After talking to EE, because my phone was purchased through a 3rd party (Carphone Warehouse) it doesn't come with EE's firmware. After spending loads of time reading, I understand that I cannot flash EE firmware onto my phone because the PIT is different to my generic one and it will not flash?
Does anyone have an EE PIT or any other option could help me please.
Thanks.
boohoo2u said:
I have an Galaxy S5 900F on EE but the WiFi calling option is not shown. After talking to EE, because my phone was purchased through a 3rd party (Carphone Warehouse) it doesn't come with EE's firmware. After spending loads of time reading, I understand that I cannot flash EE firmware onto my phone because the PIT is different to my generic one and it will not flash?
Does anyone have an EE PIT or any other option could help me please.
Thanks.
Click to expand...
Click to collapse
I, and others I've seen on here, have the same problem. Need a fix for this

VoLTE on EE UK

I'm sick of waiting for firmware updates for official EE firmware, BTU has had 2 since EE's firmware was last updated and that's not including the Nougat beta updates.
Has anyone got VoLTE working on EE using BTU firmware?
Works on Nougat beta, BTU, UK EE, wifi calling too
liamstears said:
Works on Nougat beta, BTU, UK EE, wifi calling too
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Click to collapse
In the latest beta volte does not work. Samsung disabled it becuase ee does not want people with unbranded phones or phones which have not been purchased from them directly to have the volte feature.
amar95353 said:
In the latest beta volte does not work. Samsung disabled it becuase ee does not want people with unbranded phones or phones which have not been purchased from them directly to have the volte feature.
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Click to collapse
Really? That's disgusting behaviour on behalf of EE. When the S8 comes out i'll only be one year into a two year contract so will probably end up buying it outright in which case it will be unbranded and if I can't use VoLTE i'll be seriously pissed off.
chipxtreme said:
Really? That's disgusting behaviour on behalf of EE. When the S8 comes out i'll only be one year into a two year contract so will probably end up buying it outright in which case it will be unbranded and if I can't use VoLTE i'll be seriously pissed off.
Click to expand...
Click to collapse
I'll be in the same boat. I always buy my phones outright and use a sim only contract I hope EE change their decision because in the week I had volte available to me in the android n beta it made a huge difference. The call was clearer and I could still search the web at full 4g Speed.
I assume right now, if you flash the s7 edge within EE firmware from sam mobile volte works fine ?
I'm on btu right now, tried the nougat beta and on beta 2 volte works fine on EE, but since beta 3 and beta 4 they stopped it.
So I'm thinking of flashing EE firmware.
I use BTU firmware with my original EE CSC and I have VoLTE working fine
How can you check it's working Fine? I got my phone from carphone warehouse. Sim free and no volte settings?
Sent from my SM-G935F using XDA-Developers mobile app
You need to have the EE firmware installed as far as I can tell. Only devices purchased directly from EE have the feature available.
StevenAFC said:
You need to have the EE firmware installed as far as I can tell. Only devices purchased directly from EE have the feature available.
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Click to collapse
can you flash from BTU to EE firmware and have it working?
OK I know it's taken a while, but for no reason and without me changing any settings, a VOLTE icon has just appeared on my top notification bar. I am running BTU which was flashed when I first bought the phone (SM-G935FD model) CSC changed as well, had a few OTA updates including the Nougat 7.0 January Security Build. I am on EE btw. I still can't find any settings to switch it on or off, but at least I have it now.
TraumaTiger said:
OK I know it's taken a while, but for no reason and without me changing any settings, a VOLTE icon has just appeared on my top notification bar. I am running BTU which was flashed when I first bought the phone (SM-G935FD model) CSC changed as well, had a few OTA updates including the Nougat 7.0 January Security Build. I am on EE btw. I still can't find any settings to switch it on or off, but at least I have it now.
Click to expand...
Click to collapse
What is your CSC in phone info?
There you go guys. Tested. working perfectly
https://forum.xda-developers.com/s7-edge/how-to/finally-method-enabling-volte-s7-edge-t3553066
is this still valid if i have LATEST FIRMWARE draa?

Please Help C9 Pro HK VoLTE not Working :( :(

Samsung C9 Pro Hong Kong VoLTE not Working i updated the software version C9000ZHU1AQG2 because of VoLTE but Still not working any idea to unable VoLTE or Should i Sell out this Phone..?
Same Mine also not working ??
Volte works for me in hk and china traveling. If you are in another region it will not work since csc does not include your regions carriers.
travis82 said:
Volte works for me in hk and china traveling. If you are in another region it will not work since csc does not include your regions carriers.
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Ohh so this is a problem i had been afraid of this i was going to sell my phone my region is Pakistan but when i put the Lte network sim card on my phone so networks shows 4g 3g 2g Auto connect i want to set 4g only or 3g only but its not i tried *#*#4636#*#* its also not working what should i do do u have any idea about it :crying:
set to auto. all you can do is maybe try to flash your regions csc with odin. Google for directions i will not answer how to do it. still have issues sell/donate your phone to a dev or someone who can give it a good home.

I have a SM-G950U1 can I flash SM-G950W?

I am on Telus and bought a USA phone. I have flashed the updates using Odin and the HOME_CSC so that it could be carrier set to Telus.
However, it still does not get wifi calling and volte even though I've had the carrier enable it too. The CSC did enable HD voice though.
My question is whether I can flash the offical Telus firmware on my phone as the hardware looks to be the same.
I believe I will need the modded Odin but just wondering if anyone has had success with other models rom on their phones.

Obtaining ATT Specific Functions On An Unlocked Phone

Hey Everybody,
So I've come to realize that my unlocked US S10+ on AT&T didn't have VOLTE or Wifi calling as options in the communication/call settings menus. this is pretty disappointing as it seems that using the unlocked phone with Verizon you get these features, and they make a decent impact on my use of the phone.
My understanding is if I flash the ATT firmware to the phone I would get the functions, so being an amateur I followed some simple guides to SamFirm AND ODIN, and downloaded the ATT CSC firmware for my model number. However after going through the Odin process and resetting my phone it is still showing the same Software information as prior to my installation, and I do not have the features.
I saw a thread on the board stating that the ATT firmware isn't available yet, so I'm not sure if what I downloaded was actually any different than what is on my phone,and my phones "Service Provider Software Version" did already have ATT in the description, which is a bit confusing to me.
Am I correct in understanding the only way to get the features would be through a firmware flash? And would anyone know if I had flashed the right firmware, and what the original firmware CSC would be for my model if I needed to revert?
My information is:
Model Number:
SM-G975U1 (S10+ ceramic white 512GB - Unlocked US)
Service Provider SW ver.:
SOAMC_SM-G975U1_OYM_ATT_PP_0018
R38M205LY2B
ATT/ATT/XAA
Firmware file obtained from SamFirm:
SM-G975U1_1_20190225093814_9wyh9qbuyg_fac
AP file name for reference:
AP_G975U1UEU1ASBA_CL15445662_QB22243196_REV00_user_low_ship_MULTI_CERT_meta_OS9.tar
If it's anything like the S9 was, you can't just ODIN the firmware/CSC. You'll just get the bloat with none of the features you want.
Goronok said:
If it's anything like the S9 was, you can't just ODIN the firmware/CSC. You'll just get the bloat with none of the features you want.
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Click to collapse
I've heard this as well. If you want those features on a Samsung phone, it has to be at&t branded. I ordered an at&t phone from Samsung since I make good use of wifi calling. It works fine on my unlocked P3XL but no dice on the Samsungs.
I have the same phone and service and when I went to update my imei they told me it could not find the phone. So I was without lte/4g for a day until I gave them a imei to a s8 active. Now I have data at least
Darthshadow666 said:
Hey Everybody,
So I've come to realize that my unlocked US S10+ on AT&T didn't have VOLTE or Wifi calling as options in the communication/call settings menus. this is pretty disappointing as it seems that using the unlocked phone with Verizon you get these features, and they make a decent impact on my use of the phone.
My understanding is if I flash the ATT firmware to the phone I would get the functions, so being an amateur I followed some simple guides to SamFirm AND ODIN, and downloaded the ATT CSC firmware for my model number. However after going through the Odin process and resetting my phone it is still showing the same Software information as prior to my installation, and I do not have the features.
I saw a thread on the board stating that the ATT firmware isn't available yet, so I'm not sure if what I downloaded was actually any different than what is on my phone,and my phones "Service Provider Software Version" did already have ATT in the description, which is a bit confusing to me.
Am I correct in understanding the only way to get the features would be through a firmware flash? And would anyone know if I had flashed the right firmware, and what the original firmware CSC would be for my model if I needed to revert?
My information is:
Model Number:
SM-G975U1 (S10+ ceramic white 512GB - Unlocked US)
Service Provider SW ver.:
SOAMC_SM-G975U1_OYM_ATT_PP_0018
R38M205LY2B
ATT/ATT/XAA
Firmware file obtained from SamFirm:
SM-G975U1_1_20190225093814_9wyh9qbuyg_fac
AP file name for reference:
AP_G975U1UEU1ASBA_CL15445662_QB22243196_REV00_user_low_ship_MULTI_CERT_meta_OS9.tar
Click to expand...
Click to collapse
Service Provider SW ver.:
SOAMC_SM-G975U1_OYM_ATT_PP_0018
R38M205LY2B
ATT/ATT/XAA
So I have the same service provider software, on my unlocked s10+, however when I went into an ATT store and looked at a branded S10+
I noticed the service provider software version to be : SOAMC_SM-G975U1_OYM_ATT_PP_0033( thirty three at end),
so anyway to update the service provider version? does that come from the SIM ??
I have an unlocked S10 plus and I flashed the AT&T Firmware. I now have VoLTE and WiFi calling unlocked on my phone using AT&T. You need to make sure you flash the U version of the firmware, not the U1 one. Unlocked S10 is using the U1 firmware already so flashing that one again changes nothing.
beethoven1854 said:
I have an unlocked S10 plus and I flashed the AT&T Firmware. I now have VoLTE and WiFi calling unlocked on my phone using AT&T. You need to make sure you flash the U version of the firmware, not the U1 one. Unlocked S10 is using the U1 firmware already so flashing that one again changes nothing.
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Click to collapse
Where did you get the att firmware?
Sent from my SM-G975U using Tapatalk
I kinda doubt it but did any of you with unlocked phones that flashed the AT&T firmware get any better service? I've been considering it to get VOLTE but just wondered
jamgam said:
I kinda doubt it but did any of you with unlocked phones that flashed the AT&T firmware get any better service? I've been considering it to get VOLTE but just wondered
Click to expand...
Click to collapse
I followed this thread https://forum.xda-developers.com/galaxy-s10/how-to/att-ota-ota-updates-t3909697
At first like you I downloaded the wrong version and nothing changed. I finally flashed G975USQU1ASBA and now have VOLTE/WIFI Calling and of course all of the bloat. But at least those two functions are working. Make sure that you complete a clean flash when I did a dirty flash I had problems sticking on the loading screen.
I believe you just need to call in ATT to take care those carrier specific features .
Which firmware can I flash with Odin to my S10+ Xfinity Mobile unlocked to get AT&T OTA updates? Currently have ASF7 flashed from the latest unknown firmware uploaded to Sammobile. I flashed w/o USERDATA. I just want to be able to get future OTA updates as I just switched my carrier from Metro by T-Mobile to AT&T. I was using U1 US unlocked firmwares on my Note9 & S10+ but want to use carrier perks now with AT&T.
What's with AT&T being the only ones to not release update files? You would think they all would be required to release them. More AT&T customers need kick up a fuss about it.

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