I had bought s7 edge G935P , but I am in India , so for LTE bands to work I have been using the G935U firmware and got all the LTE bands, which Jio Carrier supports in India, but It didnt had the VoLTE Option, as I had seen that T Mobile , they support VoLTE, So, I had flashed the latest G935TUVU4APK1 G935T firmware, but this dosent work on Jio sim. But as this dont work, I badly need to switch back to G935U to get the requird LTE bands work as usual and use global mode on U firmware with no bloat of T Mobile . But Later on when I Tried Flashing the U firmware, It always failed, then when I digged into it found that, the installed T Firmware had Latest Bootloader than U and thus I cant flash back to the U, (maybe some efuse lock/trigger issue) . So, I just need to get back to U , is the answer simply NO? or do I need to wait until I get a latest bootloader update for U Fitmware? Or Any other way to get back to the U firmware? Please Help me... I need this BADLY.
Doubt- Can I use the Latest Bootloader of PK1 and flash the U Firmwares PEH1 , AP, CP and CSC ? would that work, or do any help to get back to U firmware?
Which G935U
kiranhdg said:
I had bought s7 edge G935P , but I am in India , so for LTE bands to work I have been using the G935U firmware and got all the LTE bands, which Jio Carrier supports in India, but It didnt had the VoLTE Option, as I had seen that T Mobile , they support VoLTE, So, I had flashed the latest G935TUVU4APK1 G935T firmware, but this dosent work on Jio sim. But as this dont work, I badly need to switch back to G935U to get the requird LTE bands work as usual and use global mode on U firmware with no bloat of T Mobile . But Later on when I Tried Flashing the U firmware, It always failed, then when I digged into it found that, the installed T Firmware had Latest Bootloader than U and thus I cant flash back to the U, (maybe some efuse lock/trigger issue) . So, I just need to get back to U , is the answer simply NO? or do I need to wait until I get a latest bootloader update for U Fitmware? Or Any other way to get back to the U firmware? Please Help me... I need this BADLY.
Doubt- Can I use the Latest Bootloader of PK1 and flash the U Firmwares PEH1 , AP, CP and CSC ? would that work, or do any help to get back to U firmware?
Click to expand...
Click to collapse
Which G935U did you flash? I flashed my T-Mobile S7 Edge with G935TUVU4APK1 G935T to G935UUEU4API3 G935U and it flashed just fine.
http://www.sammobile.com/firmwares/download/102786/G935UUEU4API3_G935UOYM4API3_TMB/
Skip, HOME_CSC_OYM.
emrug said:
Which G935U did you flash? I flashed my T-Mobile S7 Edge with G935TUVU4APK1 G935T to G935UUEU4API3 G935U and it flashed just fine.
http://www.sammobile.com/firmwares/download/102786/G935UUEU4API3_G935UOYM4API3_TMB/
Skip, HOME_CSC_OYM.
Click to expand...
Click to collapse
Uh uh, I have been trying o flash the AEH one of U, my bad, will try the latest U Firmwares API1 and will let you know if I get any issue. Thanks for this help.
Yup, Got this right, thanks for giving proper directions. Needed this badly. The API3 of U fixed the issue.
kiranhdg said:
Yup, Got this right, thanks for giving proper directions. Needed this badly. The API3 of U fixed the issue.
Click to expand...
Click to collapse
Great!! Glad you're good. :good:
whats the difference between 930t and the 930U?
I meant the 935t and the 935U
Metro
Metro
I need to use VoLTE servie on my s7 edge G35U , but its not the option I am getting easily. I need to use the Jio4G service, but I dont have that option on my G935U (single sim) Global variant. I could have flashed the Indian INS firmware, but the issue is, indian version is Exyons veriant and the U one is running with the snapdragon, also the indian one is a G935FD (dusl sim). So, I cant flah the Indian firmware. So, what are all the avilable options for me to get the VoLTE working on my G935U ?
I have tried the T-Mobile (G935T), Version (G935V) frimware which support VoLTE for US carriers, but it wont work for Jio4G network.
So, the doubt is can I flash the U frimware with the Indian Firmwares CSC and check for the VoLTE support? will the exynos vartiants CSC (G935FD) works on snapdragon (G935U) ones?
Or is there any particular solution for getting VoLTE? Eagerly waiting for a resolution, please help me!.
kiranhdg said:
I need to use VoLTE servie on my s7 edge G35U , but its not the option I am getting easily. I need to use the Jio4G service, but I dont have that option on my G935U (single sim) Global variant. I could have flashed the Indian INS firmware, but the issue is, indian version is Exyons veriant and the U one is running with the snapdragon, also the indian one is a G935FD (dusl sim). So, I cant flah the Indian firmware. So, what are all the avilable options for me to get the VoLTE working on my G935U ?
I have tried the T-Mobile (G935T), Version (G935V) frimware which support VoLTE for US carriers, but it wont work for Jio4G network.
So, the doubt is can I flash the U frimware with the Indian Firmwares CSC and check for the VoLTE support? will the exynos vartiants CSC (G935FD) works on snapdragon (G935U) ones?
Or is there any particular solution for getting VoLTE? Eagerly waiting for a resolution, please help me!.
Click to expand...
Click to collapse
Hey, I am also struck with the same.. I am using Jio4G service. Why could not you use that? I can help. Coming to the CSC, someone has to modify the 935U firmware CSC with INS/INU, until then we can not use it. I have tried to flash 935FD CSC along with other AP,PD etc of 935U through ODIN but it failed. ( T-Mobile and verizon firmware does not work as they had their respective CSC codes and also 935U has all US CSC codes)
satish.yarramsetti said:
Hey, I am also struck with the same.. I am using Jio4G service. Why could not you use that? I can help. Coming to the CSC, someone has to modify the 935U firmware CSC with INS/INU, until then we can not use it. I have tried to flash 935FD CSC along with other AP,PD etc of 935U through ODIN but it failed. ( T-Mobile and verizon firmware does not work as they had their respective CSC codes and also 935U has all US CSC codes)
Click to expand...
Click to collapse
Yes, I am currently using the Jio4GVoice app, but still it's not stable to work flawlessly... also the device is supported but.. without proper software it's not working. So, I hope someone has a solution or any developer could help us with this. What to do?... How to modify the CSC to work with this U device.
kiranhdg said:
I need to use VoLTE servie on my s7 edge G35U , but its not the option I am getting easily. I need to use the Jio4G service, but I dont have that option on my G935U (single sim) Global variant. I could have flashed the Indian INS firmware, but the issue is, indian version is Exyons veriant and the U one is running with the snapdragon, also the indian one is a G935FD (dusl sim). So, I cant flah the Indian firmware. So, what are all the avilable options for me to get the VoLTE working on my G935U ?
I have tried the T-Mobile (G935T), Version (G935V) frimware which support VoLTE for US carriers, but it wont work for Jio4G network.
So, the doubt is can I flash the U frimware with the Indian Firmwares CSC and check for the VoLTE support? will the exynos vartiants CSC (G935FD) works on snapdragon (G935U) ones?
Or is there any particular solution for getting VoLTE? Eagerly waiting for a resolution, please help me!.
Click to expand...
Click to collapse
satish.yarramsetti said:
Hey, I am also struck with the same.. I am using Jio4G service. Why could not you use that? I can help. Coming to the CSC, someone has to modify the 935U firmware CSC with INS/INU, until then we can not use it. I have tried to flash 935FD CSC along with other AP,PD etc of 935U through ODIN but it failed. ( T-Mobile and verizon firmware does not work as they had their respective CSC codes and also 935U has all US CSC codes)
Click to expand...
Click to collapse
kiranhdg said:
Yes, I am currently using the Jio4GVoice app, but still it's not stable to work flawlessly... also the device is supported but.. without proper software it's not working. So, I hope someone has a solution or any developer could help us with this. What to do?... How to modify the CSC to work with this U device.
Click to expand...
Click to collapse
Any solution yet?
I have a similar problem with my TMobile s7 edge. Im able to use Jio Internet services, however calling doesn't work!!
S7 Edge said:
Any solution yet?
I have a similar problem with my TMobile s7 edge. Im able to use Jio Internet services, however calling doesn't work!!
Click to expand...
Click to collapse
No, Unfortunately not yet. None of the xda developers are helping on this.. at least if something is guided.. on what to be done for fixing this issue would help.. Can anyone help solve this??
kiranhdg said:
No, Unfortunately not yet. None of the xda developers are helping on this.. at least if something is guided.. on what to be done for fixing this issue would help.. Can anyone help solve this??
Click to expand...
Click to collapse
Okay. While we awaiting someone's attention - let me run this thought by you.
Firstly, Im new to the android world, firmware, rooting, etc... However with the limited googling done, I wanted to check if this will work.
What if we root our phone and disable/uninstall the RCS application (in my case it would be TMobile) and then that will allow Jio to act as RCS App??
S7 Edge said:
Okay. While we awaiting someone's attention - let me run this thought by you.
Firstly, Im new to the android world, firmware, rooting, etc... However with the limited googling done, I wanted to check if this will work.
What if we root our phone and disable/uninstall the RCS application (in my case it would be TMobile) and then that will allow Jio to act as RCS App??
Click to expand...
Click to collapse
If you are having issues in using the Jio4GVoice Applicatiom. Just install the G935U Firmware so that both data and calls work. Though VoLTE is not there, the Jio4GVoice Application will work and also all bands are unlocked in G935U , you can also select specific bands of Jio. Only thing is VoLTE is missing in G935U , maybe someone can get that feature... hoping for best
I'm pretty sure you need to change CSC to your region. Give that a shot and post back your results. I know the SM-G935U can't flash kernels because it is boot-loader locked, but I'm sure you can flash system and csc via flashfire and odin. So tinker with it see what you come up with.
travis82 said:
I'm pretty sure you need to change CSC to your region. Give that a shot and post back your results. I know the SM-G935U can't flash kernels because it is boot-loader locked, but I'm sure you can flash system and csc via flashfire and odin. So tinker with it see what you come up with.
Click to expand...
Click to collapse
Do i have to download sm 935u t mobile? Sorry to ask stupid questions, bt im new to all of this!! Im using tmobile unlocked
kiranhdg said:
If you are having issues in using the Jio4GVoice Applicatiom. Just install the G935U Firmware so that both data and calls work. Though VoLTE is not there, the Jio4GVoice Application will work and also all bands are unlocked in G935U , you can also select specific bands of Jio. Only thing is VoLTE is missing in G935U , maybe someone can get that feature... hoping for best
Click to expand...
Click to collapse
@kiranhdg - I flashed my phone with 935U and I am able to use the Jio App, cannot make calls or Text via the regular dialer. Now, If i wanna get back on the 935T which did have the VoLTE, do i just flash the it with that firmware, or I can never revert the phone?? Thanks for your help though!!
download the tmobile firmware and flash it back. No big deal.
S7 Edge said:
@kiranhdg - I flashed my phone with 935U and I am able to use the Jio App, cannot make calls or Text via the regular dialer. Now, If i wanna get back on the 935T which did have the VoLTE, do i just flash the it with that firmware, or I can never revert the phone?? Thanks for your help though!!
Click to expand...
Click to collapse
If you want 935T back again, flash the latest version of the 935T firmware. That's it, but even having the VoLTE on T doesn't help with Jio.
No solutions yet.. I am using jiovoice app for the time being..
You need hyour own carrier CSC file for VoLTE etc. But using your own CSC with the BTU nougat ROM breaks things, and cannot be used. You need to wait for your carrier to update.
azoksky said:
No solutions yet.. I am using jiovoice app for the time being..
Click to expand...
Click to collapse
Is there really going to b a solution to this
!!
S7 Edge said:
Is there really going to b a solution to this
!!
Click to expand...
Click to collapse
Any updates on this? I am in the same boat now. I have SM-G935U with me and it is not working with jio.
srekar said:
Any updates on this? I am in the same boat now. I have SM-G935U with me and it is not working with jio.
Click to expand...
Click to collapse
It's not possible bro. U can only do this if u have exynos version bought in any country. U,T,A,P,V models have Snapdragon version.
When it is come to Samsung, They maintain regional settings in CSC file which has all these regional settings like volte, APN etc . These CSC file made for exynos won't work on Snapdragon.
I have tried many combinations earlier, flashing snapdragon firmware and Exynos CSC but doesn't workout. I have 935U earlier and tried all these and sold my phone.
We also can't Unlock bootloader for Snapdragon Version and Can't even achieved proper root. SO Volte is not possible.
satish.yarramsetti said:
It's not possible bro. U can only do this if u have exynos version bought in any country. U,T,A,P,V models have Snapdragon version.
When it is come to Samsung, They maintain regional settings in CSC file which has all these regional settings like volte, APN etc . These CSC file made for exynos won't work on Snapdragon.
I have tried many combinations earlier, flashing snapdragon firmware and Exynos CSC but doesn't workout. I have 935U earlier and tried all these and sold my phone.
We also can't Unlock bootloader for Snapdragon Version and Can't even achieved proper root. SO Volte is not possible.
Click to expand...
Click to collapse
Thanks for confirming. I think I need to find a buyer for my 935U now
srekar said:
Thanks for confirming. I think I need to find a buyer for my 935U now
Click to expand...
Click to collapse
Yeah as soon as possible. Airtel will be launching VolTE very soon. People will for ask for that.
srekar said:
Thanks for confirming. I think I need to find a buyer for my 935U now
Click to expand...
Click to collapse
Do you still have device? Please let me know. I have one work around to get VOLTE on my device
We can try same on S7.
My S7 EDGE SM-G935W8 have Canadian firmware for volte i install Indian csc with the help of aroma installer but still not working .. i go through root explorer copy Indian csc file in phone csc file but still not working..I also try to install to install mm csc on nougat but nothing happen ..what to do ..very frustrating please help me:crying::crying::crying::crying::crying::crying::crying::crying::crying: i trien .
Neil17s said:
My S7 EDGE SM-G935W8 have Canadian firmware for volte i install Indian csc with the help of aroma installer but still not working .. i go through root explorer copy Indian csc file in phone csc file but still not working..I also try to install to install mm csc on nougat but nothing happen ..what to do ..very frustrating please help me:crying::crying::crying::crying::crying::crying::crying::crying::crying: i trien .
Click to expand...
Click to collapse
Who is your network service provider and does it offer VoLTE?
Muffycheeks said:
Who is your network service provider and does it offer VoLTE?
Click to expand...
Click to collapse
yes..in India JIO offer volte service
It is possible that your provider imei blocks all non provider phones, like Canadian providers do here.
For example even if you have telus w8 and are using it on Rogers, and change to Rogers csc, it will still not work. Let alone if you have international model.
Sent from my SM-G935W8 using XDA-Developers Legacy app
Hi everyone,
I installed following U firmware on my G935P with T mobile CP from latest G935T firmware. Everything works great (including WiFi calling) but VoLTE is not working. There is option in settings > networks to enable HD voice calling but enabling it doesn't help. I dont have any option for VoLTE prefereed in Phone Menu. I even tried enabling with QuickShortcutMaker to enable VoLTE. but doesn't do anything, I cant see HD logo while making calls or VoLTE symbol.
Country / RegionUSA (T-Mobile)
PDA : G935UUEU4BQH3
Product Code : TMB
CSC : G935UOYM4BQH3
Phone : G935UUEU4BQH3
http://updato.com/firmware-archive-select-model?record=657F3693929911E7963AFA163EE8F90B
Can someone tell me what I am doing wrong ?
You have to flash the T-mobile csc to get volte working I believe.
Is that confirmed? I didn't realize we could mix and match CSCs.
Thanks
VoLTE does not work with the U firmware.
No you cannot use the Tmobile CsC, if you want your phone to boot. You can use the Tmobile radio aka the CP file
bsharp8 said:
You have to flash the T-mobile csc to get volte working I believe.
Click to expand...
Click to collapse
Sorry, But you can not flash another ROM CSC as it contains firmware details. Odin will flash without error, but your phone will not boot. and you will see the broken android error in recovery.
masterhuh said:
Is that confirmed? I didn't realize we could mix and match CSCs.
Thanks
Click to expand...
Click to collapse
As @justda mentioned, No you can not mix and match CSS with different ROM. Only CP files are interchangeable between Snapdragon Models. You should use CP file from your carrier latest firmware to get better signal and more band support.
justda said:
VoLTE does not work with the U firmware.
No you cannot use the Tmobile CsC, if you want your phone to boot. You can use the Tmobile radio aka the CP file
Click to expand...
Click to collapse
I read on some threads where OP mentioned working VoLTE and WiFi calling for At&t, so I thought it should be work for T mobile too. Let me know if anyone has a solution for this problem, I am also in the same boat.
https://forum.xda-developers.com/att-galaxy-s7/how-to/xda-community-love-g930u-t3415875
https://forum.xda-developers.com/att-galaxy-s7/how-to/how-to-flash-firmware-att-volte-video-t3447225
nicsptl said:
Sorry, But you can not flash another ROM CSC as it contains firmware details. Odin will flash without error, but your phone will not boot. and you will see the broken android error in recovery.
As @justda mentioned, No you can not mix and match CSS with different ROM. Only CP files are interchangeable between Snapdragon Models. You should use CP file from your carrier latest firmware to get better signal and more band support.
I read on some threads where OP mentioned working VoLTE and WiFi calling for At&t, so I thought it should be work for T mobile too. Let me know if anyone has a solution for this problem, I am also in the same boat.
https://forum.xda-developers.com/att-galaxy-s7/how-to/xda-community-love-g930u-t3415875
https://forum.xda-developers.com/att-galaxy-s7/how-to/how-to-flash-firmware-att-volte-video-t3447225
Click to expand...
Click to collapse
My apologies to everyone. Thanks for correcting me before someone screwed their phone up. :good:
Just out of curiosity. Did anyone use 935U firmware, but XAA instead of TMB? For me, with XAA, VoLTE and wifi calling worked out of the box as soon as I inserted my T-Mobile SIM.
walrusmonarch said:
Just out of curiosity. Did anyone use 935U firmware, but XAA instead of TMB? For me, with XAA, VoLTE and wifi calling worked out of the box as soon as I inserted my T-Mobile SIM.
Click to expand...
Click to collapse
Flashing latest U firmware with T mobile CP fixed issue for me. I can confirm VoLTE for t mobile works on U firmware out-of-box with or without T mobile CP(radio). @walrusmonarch thanks until now my phone was on U firmware with July security patch. Not sure why it was not working, it's a used phone and the previous owner also made some rom related changes .
Btw, As per my knowledge, both firmware contains the same MULTI-CSC
(i.e. "CSC_OYM_G935UOYM4BQH3_CL12006533_QB14665430_REV02_user_low_ship_MULTI_CERT"). As per sim card inserted during first boot the phone will reset CSC code to match carrier. In my case, it will automatically switch to TMB, even if I use U firm with XAA default code as it contains the same AP, CP, BL and multi-csc file. correct me if I am wrong.
Hi,
Aim:
The aim is to get VoLTE working so that the phone can work in India on the Reliance Jio network. "Work" as in makes and receives calls through the native phone and messaging apps.
A bit of context:
I have a Samsung S7 Edge SM-G935F.
I am want to use the phone on a network that is 4G only meaning I need VoLTE enabled for the calls and texts.
Currently I am running the XEU firmware, but VoLTE is not working when I use the Reliance Jio sim.
PDA: G935FXXU8ETI2
CSC: G935FXEU8ETI3
If you need more context info let me know.
Questions:
So, basically, I am trying to figure out the easiest, non-intrusive way to enable VoLTE without having to unlock bootloader, root the device, etc...etc. (don't even know if it is possible this way). Anway...
The first question is, can I flash a VoLTE firmware from region/network A and use the phone in any other region/network B? Will VoLTE work? Or is the VoLTE firmware specifically programmed to work networks in a particular region or a single network in a region? For example, can I flash EVR (EE UK) firmware (I think it has VoLTE feature enabled), and use the phone in India on the Reliance Jio network.
( If the suggestion in the first question is not possible )
The second question is, can I flash a SM-G935FD INS (Indian) firmware on the SM-G935F to get VoLTE working? Is it safe to flash an FD firmware to the F variant?
Thank you,
Ray
Hello, you can run Volte and Vowifi having root, you only need to know the operator's data settings for these functions
"Currently I am running the XEU firmware, but VoLTE is not working when I use the Reliance Jio sim." Does it work with another sim? Thats the impression I am getting. If it works with another sim and not your current one then it may be as simple as the phone provider not supporting the device for VoLTE. If it is a problem for all providers then you will need to change to a firmware with a CSC that supports VoLTE.
I'm facing the same Jio VoLTE problem on Moto G7 XT1962-1