[Q] EE Wifi Calling on S5 without EE Firmware - Galaxy S 5 Q&A, Help & Troubleshooting

I have a non-EE S5 and have been trying to find out how to enable Wifi Calling. On this tread it describes editing system/csc/others.xml and adding
Code:
<CscFeature_Setting_SupportWifiCall>TRUE</CscFeature_Setting_SupportWifiCall>
I have found people reporting this works. So, I'm assuming the same process will work on the S5, but I don't want to root, so I was thinking of using an updater-script to replace the others.xml file with one that contains the new line.
Does anyone know if this will trip the Knox flag - which is the reason I don't want to root!
What do people think about this working?
If I get a definite answer about Knox, I will give it a go and post my experiences/details, along with full instructions/files if it works!
Thanks

I edited my others.xml file but no change.
I think it has also to do with the installed csc, maybe. Also there has to be some communication integrity with the operator in this feature, this could be probably why the operator given locked phone works. Phone should know where & to whom it should remain connected while on wifi only.
Samsung Galaxy S5 DUOS LTE (SM-G900FD).
ROM: G900FDU1BOC1, Android 5.0.

Tried it on my Galaxy Note 4 and I can't see the option anywhere so not working for me

Same problem
I have 900F BOC7 BTU stock firmware (as its the only one i could flash after a hidden.img.ext4 fail issue) and i'm also looking to get firmware that enables wifi calling. I tried calling EE customer services to see if i could blag an update but if you havent bought your phone from them you're screwed. However, they did enable the wifi calling option from their screen so you do need to call them to do this from their end.
Anyone know how to add the wifi calling option ?
Thanks.

seanbr0wn said:
I have 900F BOC7 BTU stock firmware (as its the only one i could flash after a hidden.img.ext4 fail issue) and i'm also looking to get firmware that enables wifi calling. I tried calling EE customer services to see if i could blag an update but if you havent bought your phone from them you're screwed. However, they did enable the wifi calling option from their screen so you do need to call them to do this from their end.
Anyone know how to add the wifi calling option ?
Thanks.
Click to expand...
Click to collapse
you need to change the CSC coding and it will appear

Kur0ya said:
you need to change the CSC coding and it will appear
Click to expand...
Click to collapse
How? Sorry,not that technical!

Related

[UK] Unlocked S7 Edge - Enable EE features?

Hi folks,
So as in iPhone user, i've been following the latest Galaxy very closely and decided to take the plunge on Sunday!
Suffice to say, sat in front of me at the moment is my first Samsung (I went for the Edge).
I'm on EE, so i'd like to know how I go about enabling Wi-Fi calling (and VoLTE when it launches - although i'm aware it's testing in several areas at the moment) on my device. I bought it unlocked, direct from Samsung - which probably explains why I can't see the settings for it?
I've ready that I may have to flash the firmware with the EE version to get the features - my concern with that though is tripping Knox, as i'd like to use Samsung Pay when it launches.
Is there a method of enabling the features without flashing the firmware?
Any help on this would be greatly appreciated!
I've ready that I may have to flash the firmware with the EE version to get the features - my concern with that though is tripping Knox, as i'd like to use Samsung Pay when it launches.
Is there a method of enabling the features without flashing the firmware
Click to expand...
Click to collapse
'''
i wouldnt if i were you. i tried that with apple pay in australia and it didnt work. its region locked. wait for the official launch.
for me, my ban offers nfc payments through the phone so i can wait abit for samsung pay to arrive in australia and if im lucky, they will give out free stuff like in america.
i never tried volte calling. but you can always use whats app and stuff.
Its safe to do so,
I bought my S7 Edge from the Samsung store, and flashed the EE firmware, it doesn't trip knox, only custom changes will trip knox, So rooting/custom recoveries and such. its safe to flash the EE firmware. and WI-FI calling working for me, (How to enable WiFI calling). as we speak. But I did do a factory reset(delete everything) after flashing to make sure the CSC for EE was installing correctly.
kossiewossie said:
Its safe to do so,
I bought my S7 Edge from the Samsung store, and flashed the EE firmware, it doesn't trip knox, only custom changes will trip knox, So rooting/custom recoveries and such. its safe to flash the EE firmware. and WI-FI calling working for me as we speak. But I did do a factory reset after flashing to make sure the CSC for EE was installing correctly.
Click to expand...
Click to collapse
Ah - just what I wanted to hear
Can you tell me if the EE firmware comes with loads of bloat? Also, will OTA updates work, or will I have to manually flash them when released (I'm sure I read that auto-updates don't work if flashing a different firmware - although I could have misconstrued that).
Thanks
Captain.Slow said:
Ah - just what I wanted to hear
Can you tell me if the EE firmware comes with loads of bloat? Also, will OTA updates work, or will I have to manually flash them when released (I'm sure I read that auto-updates don't work if flashing a different firmware - although I could have misconstrued that).
Thanks
Click to expand...
Click to collapse
Auto-update will work, but you will have to wait for EE to push the updates out. so might be a delay until they release them, Only difference from buying the phone from EE or Samsung is the firmware, So if you flash the whole phone and factory reset in recovery, its pretty much a EE phone. be warned sometimes WiFi calling will not work until you call up EE and ask them to activate it on your handset, (and that can be a funny conversation, since you didn't buy the phone from them but I managed to talk my way around it on my S6 edge+), And on my S7 Edge it seems to already be enabled after I flashed the EE firmware and enabled in the phone settings.
It's a shame that we still have to install carrier specific firmware to access these things. I thought I heard samsung had overcome this?
Some articles suggested that the S7 could install carrier specific software upon detection of SIM accordingly. This doesn't appear to be the case. I have just had to flash H3G firmware. BTW op it didn't trip KNOX
sammyelrefee said:
It's a shame that we still have to install carrier specific firmware to access these things. I thought I heard samsung had overcome this?
Some articles suggested that the S7 could install carrier specific software upon detection of SIM accordingly. This doesn't appear to be the case. I have just had to flash H3G firmware. BTW op it didn't trip KNOX
Click to expand...
Click to collapse
It is a bit rubbish really - it's one good thing Apple has over android imho. I know Google are trying to go down the same route with Carrier Updates - but they're gonna have to grow a pair if they're going to get anywhere with it.
Anyway, thanks kossiewossie - just finished flashing mine. Hoping I haven't tripped Knox (not checked yet, it's restoring my Google Account backup).
To flash the firmware is it just a case of downloading the EE firmware from sammobile and using Odin to flash it? Because I know for the S6 there was an issue where the partitions were different between the EE version and the unlocked version meaning you had to get hold of a PIT file to flash the EE firmware. Is that still the case?
I'm also considering doing the same. I'm on EE but it came through a re-seller so I've got stock Samsung firmware.
Other than the delay in updates being released, is there any other reason why not to do this? Are you able to flash back the BTU version if you grow tired of waiting for carrier updates and don't end up making the use of wifi calling?
mmotti said:
I'm also considering doing the same. I'm on EE but it came through a re-seller so I've got stock Samsung firmware.
Other than the delay in updates being released, is there any other reason why not to do this? Are you able to flash back the BTU version if you grow tired of waiting for carrier updates and don't end up making the use of wifi calling?
Click to expand...
Click to collapse
The only benefit I see with the EE firmware is Wifi calling, but as I am in a fantastic reception area, I do not need it. Therefore I see no other reason to use the EE firmware and prefer updates as soon as they are released.
Yes, if you grow tired of waiting for carrier updates, you can flash back to BTE/XEU firmware.
I can't speak for EVR firmware. I used Samfirm to download 4 file H3G firmware and I was not asked for a PIT file.
Interesting there are PIT files included in the files if you unpack them so maybe this was used?
Having downloaded the EE firmware I'm a little confused with Odin.
I have:
AP...
BL...
CP...
CSC_EVR...
Home_CSC_EVR...
Do I need to select all of these within Odin? If so, which CSC as there seems to be two? Sorry if this is a stupid question....
mmotti said:
Having downloaded the EE firmware I'm a little confused with Odin.
I have:
AP...
BL...
CP...
CSC_EVR...
Home_CSC_EVR...
Do I need to select all of these within Odin? If so, which CSC as there seems to be two? Sorry if this is a stupid question....
Click to expand...
Click to collapse
When I did it last night, within Odin I selected files for AP, BL, CP and for CSC - CSC_EVR. I didn't use the Home_CSC_EVR file.
Knowing my luck, i've probably done it wrong - although my phone does seem to be running fine!!
I'm too cautious about flashing the wrong one lol. I'll wait until we know the difference I think!
Edit: Flashed it with the standard CSC. All seems well.
I flashed the standard csc myself and all seems well for over a day now. Would still like to know what the home csc file is for.
Edit. Just found out that home_csc doesn't contain the pit file so it doesn't wipe the phone. So would have to use the standard CSC when changing firmware.

[UK EE] Flashing over Samsung firmware

Hi All,
I've got terrible signal where I'm living at the moment so I'd really benefit from getting the wireless calling through the EE firmware.
I've downloaded the firmware file but I'm a bit stuck. The firmware file itself has extracted to five separate files:
AP...
BL..
CP...
CSC...
HOME_CSC...
I'm assuming that I've got to select all of these within Odin, however I'm unsure of the difference between the two CSC files. Both seem very similar in file size.
Does anybody know the difference and which one would be the correct one to flash?
Cheers
What was the format of the file you extracted those from?
Sent from my SM-G935F using Tapatalk
It was a zip file from sammobile:
Model name Galaxy S7 edge
Country United Kingdom (EE)
Version Android 6.0.1
Changelist 110166628
Build date Fri, 19 Feb 2016 09:57:29 +0000
Product code EVR
PDA G935FXXU1APB9
CSC G935FEVR1APB4
How do you tell what is on the phone mine said it was coming from ee but then it said it was coming from the company I used which was buymobiles.net so I don't know if I have a proper ee one or a sim free I guess so might flash software once you work it out
You've probably got an unbranded one like me. It's usually pretty obvious when booting up whether it's carrier branded or not.
Think I'll wait for now until somebody can confirm the difference. I'd like to know what it is that I'm flashing
Yeah I think I am unbranded I do have the wireless option and it is on my package I called to check might turn it on it says it can take 24 hours to turn it on.
I've got no option for wifi calling in my settings. Boo! ;-(
Mine is settings, applications, phone then wifi calling at the bottom why would I have it and you don't my phone is not from ee weird
I have the option and my handset came from EE but appears to be unbranded.
Perhaps the branding isn't as obvious on the s7 then. I definitely don't have the option in there
My CSC is XEU with the firmware on my phone
mmotti said:
Perhaps the branding isn't as obvious on the s7 then. I definitely don't have the option in there
My CSC is XEU with the firmware on my phone
Click to expand...
Click to collapse
OK so for anyone thinking of doing the same, I have gone ahead and flashed the firmware and enabled WiFi Calling.
I selected all files in Odin with the exception of "HOME_CSC" (I used the standard CSC_EVR).
After enabling the option in Settings -> Applications -> Phone, I text WiFi Calling to 150.
As I'm in an area with crap signal I can already see the WiFi calling symbol in the nav bar and have made a few calls with it. All seems well.
Some very subtle changes in the EE firmware but very close to the stock in terms of branding.
@mmotti The EVR firmware on Sam Mobile is shown as G935FXXU1APB9 is that the one you flashed that enabled wifi calling on EE? Thanks.
gadgetgaz said:
@mmotti The EVR firmware on Sam Mobile is shown as G935FXXU1APB9 is that the one you flashed that enabled wifi calling on EE? Thanks.
Click to expand...
Click to collapse
Yes that's what I flashed
mmotti said:
Yes that's what I flashed
Click to expand...
Click to collapse
Thanks, I'm downloading it now and will try it tomorrow.
OK good luck - Mine has been working fine. Battery life seems significantly reduced with WiFi calling enabled though but not sure if that's just me.
gadgetgaz said:
Thanks, I'm downloading it now and will try it tomorrow.
Click to expand...
Click to collapse
How did you get on with this? I'm interested in doing the same to mine...
mine direct from EE but appears unbranded and has no ee/tmobile stuff on exterior or within software
just followed tezray's instructions and found wifi calling option...cheers tezray lol
mmotti said:
Hi All,
I've got terrible signal where I'm living at the moment so I'd really benefit from getting the wireless calling through the EE firmware.
I've downloaded the firmware file but I'm a bit stuck. The firmware file itself has extracted to five separate files:
AP...
BL..
CP...
CSC...
HOME_CSC...
I'm assuming that I've got to select all of these within Odin, however I'm unsure of the difference between the two CSC files. Both seem very similar in file size.
Does anybody know the difference and which one would be the correct one to flash?
Cheers
Click to expand...
Click to collapse
Flash the CSC file that contains a PIT file in it, The firmware on Sammobile has a CSC file called "CSC_EVR_G935FEVR1APB4_CL7211170_QB8683672_REV00_user_low_ship.tar" and that's the one you need to flash, otherwise Odin just get stuck if you flash the "HOME_CSC_EVR_G935FEVR1APB4_CL7211170_QB8683672_REV00_user_low_ship.tar"
I bought my phone from the Samsung store, and flashed the EE firmware, it will wipe the device(or did for me anyway). but now I have WIFI calling and working perfectly, only issue with using the EE firmware is that firmware/security updates are super slow :crying:
roybridge said:
How did you get on with this? I'm interested in doing the same to mine...
Click to expand...
Click to collapse
I did it and everything is fine. I got WIFI calling that is working and that was my main priority. Doesn't seem to be any downsides compared to the XEU firmware.
Hey everyone.
Thanks guys this is just what I was looking for, im using an EE sim on pay as you go but I have an unlocked Galaxy S7 Edge that I bought online NOT from EE.
1. So If I install this firmware I should be able to use wifi calling and hd voice?
2. Are there any downsides to flashing this firmware?
3. Will this reset any settings in my phone do I loose any information.
Thanks
Thanks for your help

Three VoLTE & Unlocked S7 Edge

As per thread title.
Unrooted, stock Galaxy S7 Edge with latest available firmware.
Under Settings -> Mobile Networks I have a VoLTE Call switch which is on, and network mode set to Auto (LTE/3G/2G).
Weirdly, when I'm at home which is definitely within a Three 4G coverage area (with, allegedly, support for VoLTE or "4G Super Voice" as they're calling it), if I reboot
the phone, a VoLTE icon appears for a short while in the notification bar and then disappears.
Three's webpage talks about S7 Edge users needing to get an update, but their instructions just direct people to do the standard android check for updates, of which
there don't seem to be any newer ones. So clearly, the phone IS working with their VoLTE support but other than the Icon's brief appearance, there's no way to tell
if it's actually working.
Oddly, friends of mine with S7 Edge's bought around the same time and on EXACTLY the same firmware (build, kernel etc.) don't have that VoLTE option at all.
Any thoughts?
jms_uk said:
As per thread title.
Unrooted, stock Galaxy S7 Edge with latest available firmware.
Under Settings -> Mobile Networks I have a VoLTE Call switch which is on, and network mode set to Auto (LTE/3G/2G).
Weirdly, when I'm at home which is definitely within a Three 4G coverage area (with, allegedly, support for VoLTE or "4G Super Voice" as they're calling it), if I reboot
the phone, a VoLTE icon appears for a short while in the notification bar and then disappears.
Three's webpage talks about S7 Edge users needing to get an update, but their instructions just direct people to do the standard android check for updates, of which
there don't seem to be any newer ones. So clearly, the phone IS working with their VoLTE support but other than the Icon's brief appearance, there's no way to tell
if it's actually working.
Oddly, friends of mine with S7 Edge's bought around the same time and on EXACTLY the same firmware (build, kernel etc.) don't have that VoLTE option at all.
Any thoughts?
Click to expand...
Click to collapse
Different carriers?
Sent from my Nexus 9 using Tapatalk
You need to add an IMS APN
Hi
As for VoLTE to work, you need to add an IMS APN, usually as follows:
Name: IMS
APN: ims
Authentication type: None (sometime PAP)
APN type: ims
BR,
xe
Thanks, I gave it a try that but it didn't save, even though I pressed the save button. The new APN I tried adding didn't appear after a reboot either.
Also, the "Three" APN that is currently there isn't editable either unfortunately.
Is there a way to get VOLTE working on AT&T in the US?
I have Three and have VoLTE and I switched from the carrier branded to the unbranded BTU version of the software, unrooted. Maybe you could try that?
hellhawk741 said:
I have Three and have VoLTE and I switched from the carrier branded to the unbranded BTU version of the software, unrooted. Maybe you could try that?
Click to expand...
Click to collapse
Would love to know how.. teach me please sensei
My phone was bought sim Free/unlocked from Carphone.. all I did was stick a Three sim in it...
I have an unlocked S7 edge "BTU" firmware and volte does show on mine when i'm in the office. Not that its any good, no one can hear me when i talk to them, i hear them fine. Your friend may be on the xeu firmware which AFAIK doesn't have volte option (Dont quote me on this!!). I think the signal on this phone is shocking actually, my Z5 premium had much better signal. I'll persevere with the S7 edge though.
Search and download odin.
Go to sam firmware and search for G935f (that's your phones model number.) you'll then get a list of firmwares, scroll to United kingdom and click on the btu firmware. (i tried threes H3G firmware and volte didn't work.) Download and extract the firmware. Downloads are sometimes really slow on there so be patient or search for a faster download. The latest UK firmware is: G935FXXU1APD3
Power down your phone, once off hold volume down, home and power button to get to download mode. When download mode shows, press volume up to agree.
Open odin once the samsung drivers have installed for download mode.
Click BL in odin then select the BL file from your extracted firmware
then Click AP then select the AP file from your extracted firmware
then CP then select the CP file from your extracted firmware
then CSC then select the CSC file from your extracted firmware (NOTE: there's 2 csc files don't select the Home_CSC file)
Odin should say your phone is connected.
THE NEXT STEP WILL WIPE YOUR PHONE!! PLEASE MAKE SURE HAVE BACKED IT UP AND WERE NOT RESPONSIBLE IF YOUR PHONE BRICKS.
Press Start on ODIN and wait about 10 minutes, you should see a progress bar and then "PASS" once done. Your phone will probably reboot once done.
Good Luck from a fellow 3 user
jms_uk said:
As per thread title.
Unrooted, stock Galaxy S7 Edge with latest available firmware.
Under Settings -> Mobile Networks I have a VoLTE Call switch which is on, and network mode set to Auto (LTE/3G/2G).
Weirdly, when I'm at home which is definitely within a Three 4G coverage area (with, allegedly, support for VoLTE or "4G Super Voice" as they're calling it), if I reboot
the phone, a VoLTE icon appears for a short while in the notification bar and then disappears.
Three's webpage talks about S7 Edge users needing to get an update, but their instructions just direct people to do the standard android check for updates, of which
there don't seem to be any newer ones. So clearly, the phone IS working with their VoLTE support but other than the Icon's brief appearance, there's no way to tell
if it's actually working.
Oddly, friends of mine with S7 Edge's bought around the same time and on EXACTLY the same firmware (build, kernel etc.) don't have that VoLTE option at all.
Any thoughts?
Click to expand...
Click to collapse
I'm also on Three and have the S7 Edge and I dont have this option. It could just be embedded in the firmware file.
It was a sim free phoneb that I got from car phone.. what's weird is that four friends also got new skin free phones from Samsung directly, all of the firmware and kernel numbers match but they don't have it. Also, even with the option on mine, VoLTE doesn't really work.
So still no clear idea from anyone about VoLTE support. However I noticed that VoLTE icon appear in the notification bar whenever I'm in an area with no mobile coverage. I can't make a
call mind you, but yeah.. has anyone else who hasn't had VoLTE working on a Sim free S7 Edge, but has the option turned on, seen this? My wife's S7 Edge is also exhibiting the same behaviour.
jms_uk said:
Thanks, I gave it a try that but it didn't save, even though I pressed the save button. The new APN I tried adding didn't appear after a reboot either.
Also, the "Three" APN that is currently there isn't editable either unfortunately.
Click to expand...
Click to collapse
Hi
You can try to pull out the customer.xml file under the /system/csc folder and edit the APN profile (to add IMS), then write back to the phone. It will work well, but need SU access to do this.
Regards,
xe
Looks like they've removed this switch in the latest (September) update. The VoLTE icon used to appear briefly in the notification area on first boot but no sign of it now. No real reliable way to test as network coverage is weird where I live so I can only guess at what Samsung have done.
According to someone on the Digital Spy forums, they tested after the update and still had VoLTE functionality even without the switch toggle - so I guess Samsung
have just baked it in now.
I have S7 edge unlocked from Samsung. I was on Tescomobile (O2) and I've just ported to Three. I don't have the Volte option but I do get the Volte logo on the top of the screen from tine to time. At the weekend I was in a no signal area but I had the Volte logo so I tried a couple of calls. On some calls they couldn't hear me though I could hear them. On others it got almost acceptable two way calling. I'm guessing it is working.. just.
KevofCardiff said:
I have S7 edge unlocked from Samsung. I was on Tescomobile (O2) and I've just ported to Three. I don't have the Volte option but I do get the Volte logo on the top of the screen from tine to time. At the weekend I was in a no signal area but I had the Volte logo so I tried a couple of calls. On some calls they couldn't hear me though I could hear them. On others it got almost acceptable two way calling. I'm guessing it is working.. just.
Click to expand...
Click to collapse
What firmware do you have installed and what csc?
Got it working by extracting the csc zip from the latest h3g firmware and flashing it in TWRP. Following this great guide
http://forum.xda-developers.com/showthread.php?p=68826452
CFKod said:
What firmware do you have installed and what csc?
Click to expand...
Click to collapse
Not quite sure which is which but ....
Android Version: 6.0.1
Baseband Version: G935FXXU1BPHJ
Kernel 3.18.14-9113173
Build Number: MMB29K.G935FXXU1BPHJ
Android security patch level
1 Sept 2016
Hope that helps but if you want more info please ask
KevofCardiff said:
Not quite sure which is which but ....
Android Version: 6.0.1
Baseband Version: G935FXXU1BPHJ
Kernel 3.18.14-9113173
Build Number: MMB29K.G935FXXU1BPHJ
Android security patch level
1 Sept 2016
Hope that helps but if you want more info please ask
Click to expand...
Click to collapse
Sorry keV didn't see your reply. Have you got it sorted with a newer firmware?
Sent from my Pixel XL using Tapatalk
I am on Three Austria (No VoLTE support on this network anyway). Just wondering if (since I recently flashed the unbranded UK BTU -full conversion to BTU to get Nougat and BUT OTA's) will VoLTE work on BTU even if there is no button in any settings ? Not in dialer or network settings.
I guess my question is if Three Austria implements VoLTE will I get it on BTU or will I have to flash back to DRE (3 Hutchison Austria) back again?
Some people have said starting from Nougat providers can push the settings to the phone and no custom firmware is needed, no verification of this info though.
The only provider in my country that supports VoLTE (A1) claims NO you need their firmware.
Maybe I can source an A1 sim and test this.

How to make Volte work on Samsung S7 edge (Sprint) for Reliance Jio

Hi,
I am totally a newbie to Android, just moved from IOS, so please bear with me.
I am trying to make Reliance Jio sim work on my Samsung S7 edge (Sprint). Data is working just fine through Reliance jio sim on my mobile. But I am not able to activate Volte on mobile, so calls are not getting through. The Volte turn on/off tab is missing. I searched on the internet and found out that Sprint's network does not support Volte, so they have disabled the tab for it.
My model is SM-G635P
What is the best way out?? Do i have to root my phone??
Thanks in advance.
I am not aware if this will work with Sprint, Carrier locked versions are a little different, plus its Snap Dragon but this is what i did.. You need to change the CSC usually but yours being a sprint one, there will be some modifications for sure , I am pretty sure you wont have an INS CSC in your phone, so you might have to change to a stock US or UK one or maybe T Mobile. I would wait for an expert to tell you that for sure
This is for Reliance JIO Users - You dont need to flash your ROM, you can change your firmware to INS CSC and it works.
1) i used the Phone Info App (Download from the Google Play Store) and saw what CSC Codes were available for me to change to.
2) I downloaded a new firmware from Sam Mobile - You can google for them entering your model no - G-935fD, i am not sure if they are available here in XDA as well
3) My phone supported India CSC (You can see supported CSC's using the Phone Info App so i downloaded the India one it could be different for others.
4) I then downloaded ODIN and used the tuorial in this forum to flash my phone and change the CSC code.
https://www.youtube.com/watch?v=7SK3IMprKVQ this is the link with a step to step guide.
5) After that i factory reset my phone and downloaded the July Update Patch.
My phone after that has been able to make calls and i can see the VOLTE symbol, depending on the firmware it should either automatically come or you might have to manually enable it.
Hope this helps everyone else also. Factory reset usually helps and downloading the latest update too..
The method above will not work with Sprint Phones. Attempting it may brick your phone.
Activating VoLTE will mostly require some work at the root level. Hope someone who has knowledge about it can help you.
x017in said:
The method above will not work with Sprint Phones. Attempting it may brick your phone.
Activating VoLTE will mostly require some work at the root level. Hope someone who has knowledge about it can help you.
Click to expand...
Click to collapse
Yes, thats what i told him the Sprint Carrier phones are very different and my method wouldnt work, its better he waits for an expert.
Hii..utkarsh86...I am currently using samsung s7 edge sm-G935F exoyns version from germany 1&1. I live in India and want to use jio VoLte. Is it possible for me to do so..if yes can you please tell me which firmware would support my phone. I tried phone info app but it does not show any available CSC is it fine if i flash it with any other firmware...please help..
Product Code: SM-G935FZDAXEG
PDA: G935FXXU1DQB7
CSC: G935FXEG1DQB2
Baseband: G935FXXU1DQB3
Bootloader: G935FXXU1DQB7
Try searching through the forums for your answer instead of posting another needless thread. I have answered how to fix the VoLte problem so please search.

Flashing unlocked Samsung S10+ to T-Mobile Firmware

Hey guys, first time on this forum and I am trying to figure things out. I never flashed a firmware so im a noob to this, but I can definitely follow along. Here is my main concern:
Seems like you need a T-Mobile device to get access to features like advanced messaging, visual voicemail, wifi calling, etc. Things I use all the time, but I never knew it would be taken away if I purchased an unlocked S10 plus.
My main goal is to get these features back, which from what I understand requires flashing the firmware? If there is any other way I am more than open to listen to it!
I have Odin and downloaded the "userdata" linked into this post: https://forum.xda-developers.com/galaxy-s10/how-to/g975u-g975u1-firmware-links-t3905897 specifically USERDATA_TMB_G975USQU1ASAT_CL15296297_QB21819666_REV00_user_low_ship_MULTI_CERT.zip
I figure I unzip to get the tar file, select Odin use data and only flash this file? Kinda clueless about all this.
In addition, if I were to flash I hope that Samsung Pay, Knox, finance apps will still work; also the warranty is still good. I know that rooting the device will/may make these unusable, but I just want to confirm.
Any guidance is greatly appreciated, thanks!
mdiddyshow said:
Hey guys, first time on this forum and I am trying to figure things out. I never flashed a firmware so im a noob to this, but I can definitely follow along. Here is my main concern:
Seems like you need a T-Mobile device to get access to features like advanced messaging, visual voicemail, wifi calling, etc. Things I use all the time, but I never knew it would be taken away if I purchased an unlocked S10 plus.
My main goal is to get these features back, which from what I understand requires flashing the firmware? If there is any other way I am more than open to listen to it!
I have Odin and downloaded the "userdata" linked into this post: https://forum.xda-developers.com/galaxy-s10/how-to/g975u-g975u1-firmware-links-t3905897 specifically USERDATA_TMB_G975USQU1ASAT_CL15296297_QB21819666_REV00_user_low_ship_MULTI_CERT.zip
I figure I unzip to get the tar file, select Odin use data and only flash this file? Kinda clueless about all this.
In addition, if I were to flash I hope that Samsung Pay, Knox, finance apps will still work; also the warranty is still good. I know that rooting the device will/may make these unusable, but I just want to confirm.
Any guidance is greatly appreciated, thanks!
Click to expand...
Click to collapse
WiFi Calling, VoLTE are working just fine, but I get what you mean... I mostly flashed 4 firmware files: BL, AP, CL and CSC and couple of times did flash USERDATA too. As userdata file was not required to be flashed unless you want all bloatware from the carrier. Don't know if S10 needs this "userdata" file. You would want to flash I mentioned and specifically flash CSC file and not the HOME CSC(as it usually retains user data on your phone) and in your case you want odin to wipe the device. I want to flash too, but waiting for firmware to become available on sammobile website
Charkatak said:
WiFi Calling, VoLTE are working just fine, but I get what you mean... I mostly flashed 4 firmware files: BL, AP, CL and CSC and couple of times did flash USERDATA too. As userdata file was not required to be flashed unless you want all bloatware from the carrier. Don't know if S10 needs this "userdata" file. You would want to flash I mentioned and specifically flash CSC file and not the HOME CSC(as it usually retains user data on your phone) and in your case you want odin to wipe the device. I want to flash too, but waiting for firmware to become available on sammobile website
Click to expand...
Click to collapse
Basically I should wait for Sammobile to upload those 4 firmware files (BL,AP,CL,CSC) and then use Odin to flash the firmware. Seems the instructions for that are really easy.
As far as the Samsung pay / finance apps, would it mess those up like rooting the device?
mdiddyshow said:
Basically I should wait for Sammobile to upload those 4 firmware files (BL,AP,CL,CSC) and then use Odin to flash the firmware. Seems the instructions for that are really easy.
As far as the Samsung pay / finance apps, would it mess those up like rooting the device?
Click to expand...
Click to collapse
There should be no issue with Samsung Pay and other apps, as you would be flashing official Samsung firmware. Wait for firmware files to be available and then you would be able to see which files will be included and go from there. On my unlocked S8, I didn't flash userdata file and still had all T-Mobile features you were mentioning. If with S10 we will have the same, then skipping userdata is better as the device is pretty much clean without unneeded apps
I installed T-Mobile's Visual Voicemail app from Play Store, and it works just fine. (Unlocked S10)
I did the same. Figured if I was paying outright might as well get an unlocked device. But the Samsung's from tmobile have the multi line function and I'm trying to get rid of my iPhone. But I use that number alot as well. So that multi line function built in for DIGITS worked for me. If you flash it let me know if it has it built in
Sent from my SM-G973U1 using Tapatalk
bradbutter said:
I did the same. Figured if I was paying outright might as well get an unlocked device. But the Samsung's from tmobile have the multi line function and I'm trying to get rid of my iPhone. But I use that number alot as well. So that multi line function built in for DIGITS worked for me. If you flash it let me know if it has it built in
Sent from my SM-G973U1 using Tapatalk
Click to expand...
Click to collapse
Wait. How did you get the multi line functioning on the s10? I have been scouring the internet for a solution
Curious, are there any features/capabilities that the unlocked version has, but the TMobile version does not? I ordered an unlocked S10+ (haven't received it yet) and TMobile is my carrier.
From what I've read so far, built-in caller ID, and the ability to turn mobile data off, are not on the TMobile variant, but I can't confirm that.
mosi76 said:
Wait. How did you get the multi line functioning on the s10? I have been scouring the internet for a solution
Click to expand...
Click to collapse
I don't. I have the unlocked version. But I have tmobile. Didn't think about it until I received my device. So If flashing the tmobile software will give it to me i will flash it.
Sent from my SM-G973U1 using Tapatalk
Thanks for the info too! I am also quite curious about this as I have an unlocked S10+ still pre-ordered. Unfortunately, it's too late for me to cancel it and re-ordering it on T-Mobile before April comes around as I would like to use the phone on my travels by then (still hanging on to my S5 at the moment... lol).
From what I've read, the two major features lost on unlocked phones are EVS and RCS messaging. While RCS messaging is something I can live without, I would really like to keep the EVS (Enhanced Voice Service) feature usable on the phone when it arrives.
One other question, are you able to get the updates via T-Mobile on the flashed firmware or does it have to be flashed again for future updates?
KunoMochi said:
Thanks for the info too! I am also quite curious about this as I have an unlocked S10+ still pre-ordered. Unfortunately, it's too late for me to cancel it and re-ordering it on T-Mobile before April comes around as I would like to use the phone on my travels by then (still hanging on to my S5 at the moment... lol).
From what I've read, the two major features lost on unlocked phones are EVS and RCS messaging. While RCS messaging is something I can live without, I would really like to keep the EVS (Enhanced Voice Service) feature usable on the phone when it arrives.
One other question, are you able to get the updates via T-Mobile on the flashed firmware or does it have to be flashed again for future updates?
Click to expand...
Click to collapse
What is EVS? Is that just another term for VoLTE?
Sent from my ZTE A2017U using Tapatalk
Kjn246 said:
What is EVS? Is that just another term for VoLTE?
Sent from my ZTE A2017U using Tapatalk
Click to expand...
Click to collapse
VoLTE and EVS are different. EVS is an evolution of the AMR-WB speech codec (aka HD Voice) whereas VoLTE uses said speech codecs to work. VoLTE is currently recommended to use at least AMR-WB for good voice quality. As EVS is the newer speech codec that uses similar concepts to that of AMR-WB, it is backwards compatible with technologies already using AMR-WB, which includes VoLTE.
That is what I can gather, feel free to correct me if I am wrong in any of the details.
Thanks to all for their insight. Just an update:
I flashed the T-Mo firmware on my unlocked S10+. It worked - RCS and video calling are back! However I noticed 3 things: 1st I used the CSC, but it did not delete all my apps. 2nd when the device rebooted after flashing it went into recovery mode (is this normal?), but i re-rebooted it and it went right into my phone.
3rd while RCS is working on the phone and between my Android 8.0 Note8 Tmo phone, the Note8 cannot send pictures/files to my S10+. The S10+ can send anything to me, but not the other way around. Read, Delivered, typing indicators work. I am not too concerned about this as I am getting an S10+ myself next week so this will not be an issue.
Any thoughts about that?
Other than the RCS thing, the S10+ device is working completely normally. I heard you have to change the CSC on the device but I did not do that (echo, adb, and all that jazz) - is that necessary as well?
Lots of random thoughts over here!
mdiddyshow said:
Thanks to all for their insight. Just an update:
I flashed the T-Mo firmware on my unlocked S10+. It worked - RCS and video calling are back! However I noticed 3 things: 1st I used the CSC, but it did not delete all my apps. 2nd when the device rebooted after flashing it went into recovery mode (is this normal?), but i re-rebooted it and it went right into my phone.
3rd while RCS is working on the phone and between my Android 8.0 Note8 Tmo phone, the Note8 cannot send pictures/files to my S10+. The S10+ can send anything to me, but not the other way around. Read, Delivered, typing indicators work. I am not too concerned about this as I am getting an S10+ myself next week so this will not be an issue.
Any thoughts about that?
Other than the RCS thing, the S10+ device is working completely normally. I heard you have to change the CSC on the device but I did not do that (echo, adb, and all that jazz) - is that necessary as well?
Lots of random thoughts over here!
Click to expand...
Click to collapse
Would you be able to help walk me through the process to do this. I used to root and flash custom roms to phones but the carrier specific and Samsung stuff is new to me. I'm interested in getting on the TMO firmware possibly for RCS but I don't know if it's worth the hassle for it yet
mdiddyshow said:
Thanks to all for their insight. Just an update:
I flashed the T-Mo firmware on my unlocked S10+. It worked - RCS and video calling are back! However I noticed 3 things: 1st I used the CSC, but it did not delete all my apps. 2nd when the device rebooted after flashing it went into recovery mode (is this normal?), but i re-rebooted it and it went right into my phone.
3rd while RCS is working on the phone and between my Android 8.0 Note8 Tmo phone, the Note8 cannot send pictures/files to my S10+. The S10+ can send anything to me, but not the other way around. Read, Delivered, typing indicators work. I am not too concerned about this as I am getting an S10+ myself next week so this will not be an issue.
Any thoughts about that?
Other than the RCS thing, the S10+ device is working completely normally. I heard you have to change the CSC on the device but I did not do that (echo, adb, and all that jazz) - is that necessary as well?
Lots of random thoughts over here!
Click to expand...
Click to collapse
Thanks for that update.
By any chance, could you let us know if the built in VVM is working? (accessed from the dialer by tapping the 3-dot menu button ((from within Dialer)). You should see Visual Voicemail as an option, not just Voicemail.
I flashed the TMo firmware as well, but used Home_CSC. That didn't seem to matter, since Userdata wipes the phone anyways, but I'm curious as to whether that is why I am not seeing Visual Voicemail.
As for the booting into recovery, did you have the reboot option checked in Odin when you started the flash? Mine has booted to recovery before, but it has always been because I forgot to check that box.
jordanyork said:
Thanks for that update.
By any chance, could you let us know if the built in VVM is working? (accessed from the dialer by tapping the 3-dot menu button ((from within Dialer)). You should see Visual Voicemail as an option, not just Voicemail.
I flashed the TMo firmware as well, but used Home_CSC. That didn't seem to matter, since Userdata wipes the phone anyways, but I'm curious as to whether that is why I am not seeing Visual Voicemail.
As for the booting into recovery, did you have the reboot option checked in Odin when you started the flash? Mine has booted to recovery before, but it has always been because I forgot to check that box.
Click to expand...
Click to collapse
So I have another update about this. When I included the userdata in Odin it reset my device. The visual voicemail is not working still, and i can't confirm (or i dont know how to confirm) if wifi calling or VoLTE is working as there isn't any real indication on the device. But all my RCS problems have been fixed!
...Except that all my MMS contains the "Subject: No Subject" header on every single MMS. Every. Single. One. I had to change my default messages app because this was just too damn annoying.
and yeah, i did check the box.
mdiddyshow said:
So I have another update about this. When I included the userdata in Odin it reset my device. The visual voicemail is not working still, and i can't confirm (or i dont know how to confirm) if wifi calling or VoLTE is working as there isn't any real indication on the device. But all my RCS problems have been fixed!
...Except that all my MMS contains the "Subject: No Subject" header on every single MMS. Every. Single. One. I had to change my default messages app because this was just too damn annoying.
and yeah, i did check the box.
Click to expand...
Click to collapse
Is there a voicemail icon in the dialer after flashing? Or it's still not there?
---------- Post added at 03:48 PM ---------- Previous post was at 03:47 PM ----------
WiFi calling option is within the phone app settings itself, and it would word even without flashing tmo
Anyone know if flashing tmobiles firmware onto the unlocked s10 will void warranty? if so id rather just get the locked tmobile version.
Low_Key_Slaps said:
Anyone know if flashing tmobiles firmware onto the unlocked s10 will void warranty? if so id rather just get the locked tmobile version.
Click to expand...
Click to collapse
No. This does not trip knox, nor will it void your warranty. Tampering such as flashing unofficial software will incr the Knox counter. This matters because technicians inspect the software state (among other things during checkups).
Assuming they actually verify it, the device will fail this step (not the case when using signed packages from Samsung for conversion!). .
Ace42 said:
No. This does not trip knox, nor will it void your warranty. Tampering such as flashing unofficial software will incr the Knox counter. This matters because technicians inspect the software state (among other things during checkups).
Assuming they actually verify it, the device will fail this step (not the case when using signed packages from Samsung for conversion!). .
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Click to collapse
I spoke with a Samsung care rep on their website, who told me it will void the warranty. But then again, most customer care reps dont actually know what their talking about beyond the basic questions...

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