yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy S7 Questions and Answers] Sfkn2:
The intl version does not have band 12, wifi calling on TMO, or VoLTE support on TMO.

Don't do it.
[Samsung Galaxy S7 Questions and Answers] Cloudrift:
Thanks.
[Samsung Galaxy S7 Questions and Answers] el7145:
wow really, man i really thought it had band 12...you sure it doesnt have band 12????? :good:

i couldve sworn i saw band 12 listed for the g930f and g935f
[Samsung Galaxy S7 Questions and Answers] Sfkn2:
Technology	GSM / HSPA / LTE

Frequency Bands	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (optional) ; HSDPA 850 / 900 / 1900 / 2100 ; LTE

Speed	4G

GPRS	Yes, Class 12

EDGE	Yes

http://www.knowreviewtip.com/specs-price/samsung-galaxy-s7-edge-sm-g935f/
[Samsung Galaxy S7 Questions and Answers] el7145:
https://www.frequencycheck.com/models/Ak5yr/samsung-sm-g935f-galaxy-s7-edge-lte-a-samsung-hero-2

EDIT: you can also check on ebay, the major sellers of the g935f and g930f all list band 12

oh yeah, and finally, heres the actual samsung product page

http://www.samsung.com/uk/consumer/mobile-devices/smartphones/galaxy-s/SM-G935FZDABTU

so, there it is...the g935 has band 12...unless samsung is wrong?
[Samsung Galaxy S7 Questions and Answers] Cloudrift:
Man, those sites provide confusing answers because there's one g935f owner on this forum who has T-Mobile who said it doesn't support VoLTE and Wi-Fi calling.
[Samsung Galaxy S7 Questions and Answers] aptalca:
That's because t mobile used to add their specific code to their phones' firmware. But now they're built into android so they may work.
[Samsung Galaxy S7 Questions and Answers] scottjb:
When you state now they're built in, do you mean in Marshmallow?
[Samsung Galaxy S7 Questions and Answers] Cloudrift:
I remember reading that's how the Nexus 6p gained the ability to use band 12 LTE support.

http://www.tmonews.com/2015/12/some...nd-12-lte-support-after-android-6-0-1-update/
[Samsung Galaxy S7 Questions and Answers] mathieulh:
Unbranded versions of the firmware do not support VOLTE for some inexplicable reason (the feature is there, just hidden), while some carriers do, they even use the same firmware with only a CSC change (like unbranded the XEF French unbranded firmware vs French Bouygues BOG firmware)

There is no T-mobile USA firmware for the Exynos/international variant but there are plenty of European carrier that handle VOLTE and have no branding, just flash the respective firmwares or CSC using ODIN (does not trip knox) which will enable the feature (you may need to perform a factory init to apply the CSC change)
[Samsung Galaxy S7 Questions and Answers] f10a:
I'm using the latest XEF firmware in my s6 intl 920F. Where do you get the csc to flash to enable these features?
[Samsung Galaxy S7 Questions and Answers] aptalca:
That's right. Not sure about volte, but the wifi calling was added to marshmallow: http://www.phone-probe.com/android-m-features-native-wifi-calling/
[Samsung Galaxy S7 Questions and Answers] clubtech:
That's for nexus devices, Samsung only enables WiFi calling on carrier branded ROM's.

If you buy the unlocked international version, you will not get VOLTE or WiFi calling. You will get band 12.
[Samsung Galaxy S7 Questions and Answers] aptalca:
Isn't this the first Samsung phone that comes with marshmallow?

Before marshmallow, wifi calling had to be added by the carrier to their rom like t-mobile did on moto and samsung phones.

I don't know for sure, just speculating
[Samsung Galaxy S7 Questions and Answers] km8j:
Can anyone actually confirm who had the Intl version that volte doesn't work
[Samsung Galaxy S7 Questions and Answers] clubtech:
I don't have the s7, but I did have the international note 5. When i received the marshmallow ota, a volte icon appeared in the quick toggles bar. When i tried to click it to turn volte on an error message popped saying that carrier is not supported. I tried both with a T-Mobile and at&t sim.

The s7 may be different, but I highly doubt it.
[Samsung Galaxy S7 Questions and Answers] Cloudrift:
So much for Wi-Fi calling and VoLTE with an Exynos Galaxy S7....
[Samsung Galaxy S7 Questions and Answers] mathieulh:
Just flash a supported carrier csc (you can get that from roms) and factory reset and it'll be enabled.

Envoyé de mon SM-G935F en utilisant Tapatalk
[Samsung Galaxy S7 Questions and Answers] Cloudrift:
It's going to take awhile until someone develop some sort of T-Mobile ROM though, right?
[Samsung Galaxy S7 Questions and Answers] krytikul:
Any updates on this? I have an opportunity to exchange my G935T for a G935F. Would love to pull the trigger if Wifi calling works!
[Samsung Galaxy S7 Questions and Answers] duvalbmarley:
Only on tmobile branded phones will wifi calling or VoLTE work
[Samsung Galaxy S7 Questions and Answers] f10a:
How do you do that?
[Samsung Galaxy S7 Questions and Answers] mathieulh:
download a carrier's rom and flash it with ODIN, that's the easiest way.

Envoyé de mon SM-G935F en utilisant Tapatalk
[Samsung Galaxy S7 Questions and Answers] km8j:
thats not going to work on a different device
[Samsung Galaxy S7 Questions and Answers] mathieulh:
It's not a different device they are all SM-G935F the only difference between these firmwares is the CSC.

Envoyé de mon SM-G935F en utilisant Tapatalk
[Samsung Galaxy S7 Questions and Answers] km8j:
The original request was to get them to work on TMo. you cannot just flash the Tmo ROM on intl devices
[Samsung Galaxy S7 Questions and Answers] osmosizzz:
The s7 and s7 edge support band 12 however when used in tmobile, the devices will not connect with band 12 at all. So no volte even if your firmware supports it. There's likely lower level stuff in the tmobile firmware that allows for volte and wifi calling that's just not in the international firmware. With the note 5, I had one time the phone connect to band 12, where I made the call and it didn't drop to H+ but the call didn't go through. It never rung. So I had to end the call and try it again, and when it dropped to H+, the call went through. Reason I had to leave tmobile again. Band 12 is key but since I buy my phones from elsewhere, I don't get any of the new coverage. So back with att I am
[Samsung Galaxy S7 Questions and Answers] mathieulh:
You don't need to, as I have kept saying, you flash a carrier rom from one that supports volte and is located in a country that sells the SM-935F (Bouygues Telecom (CSC: BOG) comes to mind) it will work just fine on T-Mobile

Of course your need to do this on the international variant.

VOLTE is a standard, there is no special version of it for T-Mobile or whatever, as long as it's enabled on the phone, it will work on any LTE networks that support it, the only reason it does not work on the SM-G930F/G935F out of the box is because for some reason Samsung chose to disable the feature on unbranded roms/CSC and only enable it on roms from carriers that have VOLTE subscribers.

VOLTE isn't an American or a T-Mobile thing, there are plenty of carriers around the world, including Europe that use this feature.

Envoyé de mon SM-G935F en utilisant Tapatalk
[Samsung Galaxy S7 Questions and Answers] km8j:
This isn't accurate. T-Mobile requires certification for every model phone to use volte
[Samsung Galaxy S7 Questions and Answers] f10a:
I assume that by flashing a BOG firmware (for example) that you'll get the carrier boot logo and all the bloat associated?
[Samsung Galaxy S7 Questions and Answers] mathieulh:
No, Bouygues do not put bloats on their phones, so it looks exactly like stock

Envoyé de mon SM-G935F en utilisant Tapatalk
[Samsung Galaxy S7 Questions and Answers] f10a:
Any pro or con flashing BOG vs XEF? Also, any similar rom that also has wifi calling?
[Samsung Galaxy S7 Questions and Answers] jjohn7293:
http://forum.youmobile.org/downloads/?sa=view&down=13009

Could you theoretically install this firmware on any International Galaxy S7 in order to obtain Wi-Fi calling and vo LTE on T-Mobile? I live in the USA, I'm not sure if this would be a region lock thing.
[Samsung Galaxy S7 Questions and Answers] mathieulh:
It's the same rom, only the volte option changes. The only con I could find is that updates may not be as fast as on the unbranded version of the rom.

There is no bloatware on the BOG cec rom, they look and act just like the unbranded version.

Envoyé de mon SM-G935F en utilisant Tapatalk
[Samsung Galaxy S7 Questions and Answers] Cloudrift:
I'm curious about this too.
[Samsung Galaxy S7 Questions and Answers] km8j:
Isn't the whole network and cert process different in the US?

---------- Post added at 09:52 AM ---------- Previous post was at 09:45 AM ----------

One way to get volte is just use a voip provider hah
[Samsung Galaxy S7 Questions and Answers] jjohn7293:
I've ordered the G930F and I'm going to test it
[Samsung Galaxy S7 Questions and Answers] km8j:
When do you get it
[Samsung Galaxy S7 Questions and Answers] jjohn7293:
I get to go home on April 13. I will be anxious to test it when I go home.
[Samsung Galaxy S7 Questions and Answers] hella356:
I'm very interested in hearing your results. This could be the perfect workaround for T-Mobile users. From what I've read, the Exynos version would suit me better than the 820, anyway, although I've read the Exynos version doesn't have as good a modem. Hopefully at least one custom ROM would come to light. :)
[Samsung Galaxy S7 Questions and Answers] jjohn7293:
https://www.google.com/search?q=g93...ms-tmobile-us&sourceid=chrome-mobile&ie=UTF-8

Check out this link. These are a few options for different firmwares. I think the Austrian version would probably be best
[Samsung Galaxy S7 Questions and Answers] hella356:
Looks like there's some potential here...
[Samsung Galaxy S7 Questions and Answers] orrorin:
I tried the Austrian T-Mobile ROM on my 930F and there is no Advanced Calling menu. Searching the settings menu reveals no Wi-Fi calling, and the feature is not in the Dialer settings either.
[Samsung Galaxy S7 Questions and Answers] jjohn7293:
Hopefully. I think Austrian, being the German language, would be the closest to English. Although I'm sure there would be an option for us English in setup. I'm just excited to test it out.
[Samsung Galaxy S7 Questions and Answers] hella356:
This has many more options:

http://forum.youmobile.org/downloads/?cat=443&sortby=date&orderby=desc;start=0

Thanks for being the guinea pig!
[Samsung Galaxy S7 Questions and Answers] SithLord***679:
So Any Luck with the VoLTE ?
[Samsung Galaxy S7 Questions and Answers] Cloudrift:
I also thank you for being our guinea pig.
[Samsung Galaxy S7 Questions and Answers] Cloudrift:
Is there an update?
[Samsung Galaxy S7 Questions and Answers] Aval0n:
tick tock

:fingers-crossed:sigh....
[Samsung Galaxy S7 Questions and Answers] cward0625:
Any luck?
[Samsung Galaxy S7 Questions and Answers] hella356:
Any luck? The suspense is killing us! :D
[Samsung Galaxy S7 Questions and Answers] GbizzleMcGrizzle:
The International version DOES have band 12

---------- Post added at 09:25 PM ---------- Previous post was at 09:16 PM ----------

I have MetroPCS which is T-Mobile pretty much and my phone connects to Band 12 makes phone calls and connects to the internet, so i don;t know
[Samsung Galaxy S7 Questions and Answers] osmosizzz:
Nope, doesn't connect. Only devices provisioned with tmobile will. I used the international note 5 on tmobile. That one also has band 12. It connected to it once. Made a call, lte stayed on. But it never made the ringing tone. Hung up, then attempted the call again and it dropped to hspa to make the call and it went through.
[Samsung Galaxy S7 Questions and Answers] GbizzleMcGrizzle:
[IMG="ss"]http://i66.tinypic.com/ameczn.png[/IMG]
[Samsung Galaxy S7 Questions and Answers] GbizzleMcGrizzle:
but has anyone in the US sucessfully flashed a T-mobile rom to an INternational phone...
[Samsung Galaxy S7 Questions and Answers] GbizzleMcGrizzle:
So I just flashed the Czech Republic T-Mobile Firmware because it appears that Czech Republic is the only country that has VoLTE via T-Mobile. But how do I see if it's working

Thanks
[Samsung Galaxy S7 Questions and Answers] osmosizzz:
Make a call and if the call goes through and you still see "lte" in the status bar, then it's working. If it drops down to H or H+ then it's not working
[Samsung Galaxy S7 Questions and Answers] GbizzleMcGrizzle:
in that case VoLTE works just fine, I just hope eventually t-mobile releases a usa firmware for enyxos
[Samsung Galaxy S7 Questions and Answers] km8j:
You are saying volte works fine in the USA?
[Samsung Galaxy S7 Questions and Answers] lost_:
Got a link to the firmware? Thanks
[Samsung Galaxy S7 Questions and Answers] GbizzleMcGrizzle:
Yes it works in the USA.

This is where I got the Firmware from https://samsung-firmware.org/download/Galaxy-S7/65i0/TMZ/G930FXXU1APD1/G930FTMZ1APC1/
[Samsung Galaxy S7 Questions and Answers] jjohn7293:
Volte and WiFi calling???
[Samsung Galaxy S7 Questions and Answers] GbizzleMcGrizzle:
No there's no WiFi Calling T-Mobile doesn't have Wi-Fi Calling in Czech Republic apparently
[Samsung Galaxy S7 Questions and Answers] nord_musician:
I don't know if this information work for you, people, but my G930F connects to T-Mobile's band 12 flawlessly, speeds are great
[Samsung Galaxy S7 Questions and Answers] cward0625:
This may be a stupid question ( I am upfront about being a complete noob on this stuff) but I will ask anyway, was the statement about making a call and confirming it showed LTE assuming that you were currently using band 12? I don't have the best knowledge here, but wouldn't it still show 'lte' if you were using bands 2/4 for tmobile when making the call. Just wanted to clarify this.

Also is it safe to assume this would work with the G935F too and just need the different firmware version for that phone?

Finally when you flashed that firmware are you noticing any other differences or issues, just not sure of the implications of flashing a firmware from another country.

I personally am not that concerned about the wifi calling, but would like to have confidence in a band 12 support workaround (or at least confidence this could be solved for later). I really want to avoid getting the tmobile version of the s7e if possible.
[Samsung Galaxy S7 Questions and Answers] lost_:
Firmware with Wifi Calling and VoLTE

Out of curiosity, I flashed EE UK firmware and enabled the Wifi Calling option in Phone Settings. BUT, their wifi calling is setup differently than T-Mobile US so it won't work. The Wifi calling option on EE's firmware is to tell the EE to turn on Wifi calling for this subscriber, and a confirmation text would be sent to the phone. Obviously, my service is not on EE therefore no Wifi calling.

Here are other firmware that might have wifi calling: Vodafone UK based on this, Vodafone Netherlands, Swisscom, but again, I doubt they would work with T-mobile US wifi calling.

Without T-Mobile US providing a firmware for the 930F (which I think is a good idea for them to quiet the #bootloadergate campaign) or absent developers adding it like in CM, I don't think wifi calling would work for us. It's still not a widely adopted feature, even in Europe.

To try to get VoLTE working, get a firmware from an operator listed in the attached list (courtesy of GSA - Global Mobile Suppliers Assoc.). T-Mobile Czech is the only other TMo operator beside US. The Czech firmware is branded with Tmo boot logo. Beside Tmo US, other operators that have both VoLTE and Wifi calling include Rogers (SM-G930W8, lack of publicly available firmware) and Swisscom.

Edit: added firmware links, list of VoLTE.
[Samsung Galaxy S7 Questions and Answers] Cloudrift:
Without flashing any roms?
[Samsung Galaxy S7 Questions and Answers] cward0625:
Can you confirm VoLTE is working? Can you show a screenshot of an app like LTE Discovery showin that you are on Band 12, then make a call while still on this band showing your signal indicator still displays LTE?
[Samsung Galaxy S7 Questions and Answers] GbizzleMcGrizzle:
My phone didn't even have LTE working properly before I place the check T-Mobile firmware I was getting download speeds of 10 KB a second what's a flashed an Austrian version of the firmware I started getting it LTE signals . however volte definitely does work on band 12 but this firmware is definitely increase my data speeds and allow me to properly connect to the LTE network

---------- Post added at 11:20 AM ---------- Previous post was at 10:47 AM ----------

There really isn't any difference between the T-Mobile check firmware and any other other than at T-Mobile boot screenand anot app called Evernote.

I think once she mobile comes out with a u.s. firmware for These phones will probably have Wi-Fi calling too
[Samsung Galaxy S7 Questions and Answers] nord_musician:
Exactly, I haven't flashed anything

I don't see any VoLTE option. In fact when I make a call, I'm dropped out of LTE and switched to HSUPA, even if I was connected to band 12
[Samsung Galaxy S7 Questions and Answers] cward0625:
Ok then it appears it is not working for you then and the solution still needs to be confirmed with flashing other firmware.
[Samsung Galaxy S7 Questions and Answers] relax24:
Does anyone know what in the firmware actually makes WiFi calling work. I've got an ee phone and have the latest btu custom rom. I've flashed the stock csc so I've got the option in setting to turn WiFi calling on but after I do that nothing happens. I should see an icon in my status bar but I'm not. Is there anything in the boot.img that could affect this?
[Samsung Galaxy S7 Questions and Answers] lost_:
A bunch of things. See my post 1 page back. I linked to a post about CM13 adding T-Mobile Wifi calling, and that's only a partial picture.
[Samsung Galaxy S7 Questions and Answers] relax24:
My phone is already directly from EE.

I've flashed the stock rom, and wifi calling works. The custom rom that I use, uses the same firmware as its base. Therefore, in my eyes, there's no actual difference. I even exported the CSC cache.img, made it into a flashable zip, and flashed that.

pda is the same

csc is the same

BL is the same

CP is the same

There's something I'm missing here. I cannot figure out why it's not working on this custom rom. All it is is a deodexed rom with a few build prop tweaks and other additions. The only thing I can think of is the boot.img/kernel. But I really don't think it can be that.
[Samsung Galaxy S7 Questions and Answers] lost_:
Are you talking about wifi calling on EE or wifi calling on T-Mobile

USA

? I'd be pleasantly surprised if it's about the T-Mobile US because I flashed EE firmware and as my post on the previous page said, EE wifi calling does not work on T-Mobile US. If you're talking about EE wifi calling, then an EE wifi calling thread would be a better place to ask.
[Samsung Galaxy S7 Questions and Answers] relax24:
Sorry I meant EE wifi calling with an EE sim...however I was hoping we could share ideas, maybe get to a common way about how we get this to work. I still think there's something missing which stops wifi calling from working. I have the settings, the firmware, and EE backend have said wifi calling is activated for use on my account...except no wifi calling icon
[Samsung Galaxy S7 Questions and Answers] GbizzleMcGrizzle:
Here's a picture of LTE Discovery While I make a phone call but It doesn't really show anywhere that a phonecall is being made and Good Lock broke my Signal indicator on the top so...
[Samsung Galaxy S7 Questions and Answers] GbizzleMcGrizzle:
Here's a better Screenshot of VoLTE working without GoodLock on my SM-G930FD
[Samsung Galaxy S7 Questions and Answers] cward0625:
So to confirm, it sounds like VoLTE will work if you flash the czech republic firmware. I don't have the phone yet, but am probably going to get the edge version, wanted to confirm this first. So all I would need to do is download this version and follow the instructions at the bottom to install correct?

https://samsung-firmware.org/download/Galaxy-S7-Edge/6r53/TMZ/G935FXXU1APB4/G935FTMZ1APB2/
[Samsung Galaxy S7 Questions and Answers] GbizzleMcGrizzle:
I just downloaded the Czech Republic T-Mobile firmware and Flash all 5 files. But my phone did have CSC from Nigeria which kept me from connecting to any LTE network and keeping my download speed below 10K a second

---------- Post added at 04:21 PM ---------- Previous post was at 04:18 PM ----------

On another note I did tweet the CEO of T-Mobile to ask him about United States T-Mobile version for the g930fd and his response was nothing yet which makes me think that hopefully eventually they'll come out with the US version
[Samsung Galaxy S7 Questions and Answers] lost_:
I've flashed Czech Republic TMZ files twice and still did NOT get VoLTE. In the beginning of the call, the icon would change from LTE to H+, then back to LTE again after the call. My area is covered and I can do VoLTE with other phones.

You meant you flashed 4 files, not 5, right? It's either the CSC or the HOME_CSC. They're identical except the CSC tar file has the PIT inside which would lead to a full reset.

Got a link to [MENTION=3373379]JohnLeger[/MENTION]e tweet?
[Samsung Galaxy S7 Questions and Answers] rootuser11:
Mine stays with LTE when I make a call and talk. I am currently using superman 1.3 rom.

Mine is g930s btw not g930f. This is the only variant with 64gb internal storage without the samsumg logo on the front.
[Samsung Galaxy S7 Questions and Answers] km8j:
Wait wait wait wait... The people getting VoLTE to work with other firmwares, are you on TMOBILE USA?
[Samsung Galaxy S7 Questions and Answers] rootuser11:
Yes for me
[Samsung Galaxy S7 Questions and Answers] km8j:
Are there any ROMs for the phone that are not touchwiz that are compatible with this?
[Samsung Galaxy S7 Questions and Answers] rootuser11:
No
[Samsung Galaxy S7 Questions and Answers] anywho:
Interesting, so if you flash the home_csc file instead of the csc file, then it will preserve all your settings, apps, data?
[Samsung Galaxy S7 Questions and Answers] lost_:
This would be more helpful than me. I only recently waded into CSC stuff because of locked BL.
[Samsung Galaxy S7 Questions and Answers] GbizzleMcGrizzle:
Will I'm on metropcs but that's more or less T-Mobile USA.

That's the superman rom?

---------- Post added at 10:24 PM ---------- Previous post was at 10:14 PM ----------

Also I flashed the CSC file but that's because I wanted out of Nigeria
[Samsung Galaxy S7 Questions and Answers] nord_musician:
Can the CSC be flashed without root and without tripping Knox?
[Samsung Galaxy S7 Questions and Answers] GbizzleMcGrizzle:
I think so as long as your flashing stock. But I'm not that sure I tripped Knox already without having any clue what that meant
[Samsung Galaxy S7 Questions and Answers] GbizzleMcGrizzle:
I flashed ALL the files and CSC file
[Samsung Galaxy S7 Questions and Answers] cward0625:
Is there any concern with 911 calls not working? Just curious as that was my understanding as to the risk with non certified t-mobile devices from different articles.
[Samsung Galaxy S7 Questions and Answers] rpham:
My g935f LTE Discovery app shows band 12 on tmobile couple of time. After reading this thread, I tested making a call and it dropped to 3g and H+ right away. So there we go. Maybe I need to have different rom. I'm currently using the Tekhd rom
[Samsung Galaxy S7 Questions and Answers] Cloudrift:
The superman rom according to rootuser11(who's on T-Mobile) supports VoLTE.
[Samsung Galaxy S7 Questions and Answers] km8j:
Evidence? Is this TMO US?
[Samsung Galaxy S7 Questions and Answers] nitin1009:
I have the G935f - s7 Edge using AT&T sim card. The rom is from Egypt (got it form eBay Techno Trading). Wondering would the Czech Republic ROM really add Wi-Fi Calling or is that only for Tmobile Sim cards? Also anyone figure out how to add Wi-Fi. I am switching to AT&T prepaid and my 3G micro-cell won't work if I did that which means falling back on Wi-Fi Calling would be preferred. TMo sucks in my area.

Also which ROM gets the fastest software updates? Does Flashing require rooting? I know it's a dream but would like to keep Samsung Pay hope open.
[Samsung Galaxy S7 Questions and Answers] jjohn7293:
How is this accomplished?
[Samsung Galaxy S7 Questions and Answers] Cloudrift:
Yes, according to him.