EE wifi calling on S7 - G930F. It seems to work

[vzaliva]

I got confirmation from @FSOP that he got WiFi calling working on this exact (EVR) firmware. So I went ahead and flashed it and still no luck. I did little more digging under /features/csc/ and found the following:

1. WiFi calling feature seems to be enabled in others.xml

    <CscFeature_Setting_SupportWifiCall>TRUE</CscFeature_Setting_SupportWifiCall>

This is consistent with this post.

2. I found few more features in customer.xml:

 <IMSSetting>
      <Setting>
        <NetworkName>T-Mobile UK</NetworkName>
        <VoLTE>
          <EnableVoiceoverWIFI>true</EnableVoiceoverWIFI>

There are two sections like this, specific to T-Mobile UK and O2 UK. It might means that WiFi calling only enabled for these two carriers. I can try to root my phone and edit this file to see if it helps. I am little surprised that EnableVoiceoverWIFI is nested under VoLTE.

 

[buachaille]

I got confirmation from @FSOP that he got WiFi calling working on this exact (EVR) firmware. So I went ahead and flashed it and still no luck. I did little more digging under /features/csc/ and found the following:

1. WiFi calling feature seems to be enabled in others.xml

    <CscFeature_Setting_SupportWifiCall>TRUE</CscFeature_Setting_SupportWifiCall>

This is consistent with this post.

2. I found few more features in customer.xml:

 <IMSSetting>
      <Setting>
        <NetworkName>T-Mobile UK</NetworkName>
        <VoLTE>
          <EnableVoiceoverWIFI>true</EnableVoiceoverWIFI>

There are two sections like this, specific to T-Mobile UK and O2 UK. It might means that WiFi calling only enabled for these two carriers. I can try to root my phone and edit this file to see if it helps. I am little surprised that EnableVoiceoverWIFI is nested under VoLTE.

Yes, the firmware version I showed earlier in this thread worked for me, and another person I recall.

Are you in the UK, an EE customer, and using a G930F bought from a reputable dealer (not bought from Amazon for example).

 

[buachaille]

Yes, the firmware version I showed earlier in this thread worked for me, and another person I recall.

Are you in the UK, an EE customer, and using a G930F bought from a reputable dealer (not bought from Amazon for example).

Reason I'm asking is when I tried and failed numerous times to get wifi calling enabled on a G900F (S5) it always failed no matter what I did, but the option to turn it on in phone settings would appear.

If you don't have the option even appearing on your phone it sounds like one of the partitions needed isn't getting flashed.

 

[vzaliva]

Yes, the firmware version I showed earlier in this thread worked for me, and another person I recall.

Are you in the UK, an EE customer, and using a G930F bought from a reputable dealer (not bought from Amazon for example).

I am in US but bought my S7 from Amazon. The seller seems to be official Samsung.
I think I understand now that WiFi calling is enabled for specific networks, so I need to tweak
CSC settings to make it work in US. For that I would need to find examples of CSC settings xml files
from official US T-mobile Galaxy S7.

 

[buachaille]

I am in US but bought my S7 from Amazon. The seller seems to be official Samsung.
I think I understand now that WiFi calling is enabled for specific networks, so I need to tweak
CSC settings to make it work in US. For that I would need to find examples of CSC settings xml files
from official US T-mobile Galaxy S7.

Maybe it can be done, but getting that to work sounds extremely difficult to me. The EE firmware I flashed is specific to the EE network, will be locked to UK, etc.

 

[vzaliva]

Maybe it can be done, but getting that to work sounds extremely difficult to me. The EE firmware I flashed is specific to the EE network, will be locked to UK, etc.

Once I get CSC files from somebody with US T-Mobile branded Galaxy S7 I will do some experiments and if it works I will provide simple instructions how to do this. It should not be too complex, but will require ROOT-ing your phone. At this point it seems that it should be not very difficult.

I have posted request for files here. Hopefully somebody could get me these files.

 

[FSOP]

Yep I can't see that firmware working with any carrier other than EE, but you should be able to do the same for whatever carrier you're with that supports WC over there.

 

[superleeds27]

Still no update for EVR!

 

[superleeds27]

Looks like BTU has WiFi calling built in now

 

[FSOP]

Looks like BTU has WiFi calling built in now

Awesome

Have you noticed any improvement in battery / performance with the newer BTU over the old EVR firmware?

 

[superleeds27]

Awesome

Have you noticed any improvement in battery / performance with the newer BTU over the old EVR firmware?

Only downloaded BTU this morning. Haven't had EVR on my S7

 

[f10a]

Looks like BTU has WiFi calling built in now

Anyone know if this will work on att?

 

[relax24]

any of you guys managed to figure out how to get ee wifi calling to work on a custom rom? I exported the EVR CSC cache.img, and created a flashable zip for the s7 edge, which I flash after i've installed a custom rom. I've got the setting to show up, but ticking it doesn't actually do anything and I don't get the wifi calling symbol. Don't know what in their firmware actually makes it work

 

[f10a]

Looks like BTU has WiFi calling built in now

Option not showing using BTU on att.

 

[superleeds27]

Option not showing using BTU on att.

Because you're not on EE

 

[jonboyuk]

***EDIT*** Don't worry, a factory reset fixed all my whinging below, I now see WiFi calling in the phone settings ***

I'm confused. I've just flashed the latest BTU version on my S7 which claims to add wifi calling for EE customers (like moi). I see nothing.

Before this I flashed the EVR ROM which *did* give me Wifi Calling. Now I've flashed this I've lost it Any ideas?

Although the phone still works okay, KNOX not tripped etc etc, now if I go to the phone base settings (ie holding up, menu, pwr) to boot, I get this little "Installing update animation" which seems to fail as it then shows a dead android with a yellow triangle, then goes to the boot menu.

Is it trying to install this wifi calling thing and failing? I would normally diagnose a dodgy flash but the phone seems fine, albiet without wifi calling. Humf!

NB I downloaded the top ROM. Should have I got UK/Ireland instead?

 

[superleeds27]

***EDIT*** Don't worry, a factory reset fixed all my whinging below, I now see WiFi calling in the phone settings ***

I'm confused. I've just flashed the latest BTU version on my S7 which claims to add wifi calling for EE customers (like moi). I see nothing.

Before this I flashed the EVR ROM which *did* give me Wifi Calling. Now I've flashed this I've lost it Any ideas?

Although the phone still works okay, KNOX not tripped etc etc, now if I go to the phone base settings (ie holding up, menu, pwr) to boot, I get this little "Installing update animation" which seems to fail as it then shows a dead android with a yellow triangle, then goes to the boot menu.

Is it trying to install this wifi calling thing and failing? I would normally diagnose a dodgy flash but the phone seems fine, albiet without wifi calling. Humf!

NB I downloaded the top ROM. Should have I got UK/Ireland instead?

One of them will be XEU and one will be BTU. You need BTU

 

[jonboyuk]

Thanks, I installed BTU!

 

[ben.fred6394]

Ive got a galaxy S7 (non edge )
its from EE france, 'G930FXXU1APBF'
i bought it online so its my own fault but i really need wifi calling !!!
It was great on my s6 which was direct from EE

can i still flash EE EVR ? please tell me it will work

 

[vhc]

I noticed this as well after the new update.
I tried this out, but no changes in battery life for me