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Any Custom ROM Supporting VoLTE ?

Hello All,
This query is regarding Redmi 2 Custom Rom. Is there any Custom ROM which supports VoLTE?
In India, Reliance Jio is launching 4G which will require VoLTE and hence this query. I have read that MIUI based on Lollipop base does support VoLTE but have not seen that option in Custom ROMs. Thanks in advance for help & comments
Edit
Basis feedback from users, to get VoLTE working following is solution:
1) One needs to first flash MIUI LP ROM (to get LP bootloader)
2) Second follow this by flashing ROMs like Orion, Mokee etc which supports VoLTE over LP bootloader
Read next post for details

Enable VoLTE in Redmi 2
The solution to get VoLTE working is following :
1) First, one needs to flash MIUI LP ROM (to get LP bootloader)
2) Second, flash ROMs like Orion, Mokee, RR, Project X, CM 13 etc which supports VoLTE over LP bootloader
3) Insert sim (example Jio for Indian users) and reboot. If required might have to create APN "ims"
4) In case APN "ims" doesn't work very well, pls follow this post here to replace apns config file.
That's it.. this will work.
Credits to multiple users from this thread. Cheers guys for being supportive

mGforCe said:
Bump ! Anyone who can help here.. Thanks
Click to expand...
Click to collapse
cm13 i think... yes.. cm13 snapshot.

neerajkumar18 said:
cm13 i think... yes.. cm13 snapshot.
Click to expand...
Click to collapse
Thanks Neeraj. Have you tried it? Any experience..

mGforCe said:
Thanks Neeraj. Have you tried it? Any experience..
Click to expand...
Click to collapse
no i haven't tried

Cm13 snapshot
Sent from my 2014818 using XDA-Developers mobile app

CM13 base Custom Roms does not support VoLTE

Im currently on Mokee with Jio sim & volte call does work. :good: I think cm13 too would work, Tesla didn't. Remember to be in lollipop firmware with volte support before flashing custom rom .

mits619 said:
Im currently on Mokee with Jio sim & volte call does work. :good: I think cm13 too would work, Tesla didn't. Remember to be in lollipop firmware with volte support before flashing custom rom .
Click to expand...
Click to collapse
Can you try on DU latest build and confirm for me if it's working for you?

Cm-13

I am having a question.. When I'm using any custom rom and using my Jio 4G sim in any of the custom rom the performance isn't that great. For eg. If I'm getting 34mbps speed in MIUI then in any custom ROM i will be getting 0.5-1.0 Mbps speed. Can anyone tell me why is this happening and any workaround for it?

[/COLOR]
mits619 said:
Im currently on Mokee with Jio sim & volte call does work. :good: I think cm13 too would work, Tesla didn't. Remember to be in lollipop firmware with volte support before flashing custom rom .
Click to expand...
Click to collapse
I tried d same..but calls nt wrkng..help bro

why install custom.. just install miui lollipop of redmi 2 prime and use VoLTE. it works

So in order to get VoLTE support on CM13, do you have to have Lollipop Bootloader and Modem flashed?

What about MM custom ROMs? Can anyone tell me for a fact if any ROM supports VoLTE. Also, can anyone confirm if this guide works for custom ROMs?

Can I Install the redmi 2 prime lollipop rom on redmi 2 1gb ram version are you sure it works, if not then what rom supports VoLte on 1gb redmi 2.

For me volte working perfectly
Cm 13, Zephyr, aicp, mokee
---------- Post added at 03:06 AM ---------- Previous post was at 03:04 AM ----------
shabtab said:
Can I Install the redmi 2 prime lollipop rom on redmi 2 1gb ram version are you sure it works, if not then what rom supports VoLte on 1gb redmi 2.
Click to expand...
Click to collapse
My friend using miui 8 Lollipop based ROM in Redmi 2 and it's working fine

mits619 said:
Im currently on Mokee with Jio sim & volte call does work. :good: I think cm13 too would work, Tesla didn't. Remember to be in lollipop firmware with volte support before flashing custom rom .
Click to expand...
Click to collapse
Which Mokee, Lollipop or Marshmallow?

Hi.. I don't know why. But jio 4g sim is not working in my cm13. I was rocking the stable miui 7 build that's v7.5. Its working fine in that. I have had no luck in making it work in cm13. Please help

nairitmukherjee0007 said:
Hi.. I don't know why. But jio 4g sim is not working in my cm13. I was rocking the stable miui 7 build that's v7.5. Its working fine in that. I have had no luck in making it work in cm13. Please help
Click to expand...
Click to collapse
I read this somewhere in CM13 thread. Try these APN settings it should work
For volte go to network setting then select apn.
Add new apn with below details for volte
Name - jio
APN - ims
APN Type - ims
Rest of things you can keep as it is.
Also for 4g internet
Name - jio4g
APN - jionet
APN Type - default

VoLTE rom for 1GB version

So is there any Smooth most stable custom rom that can use 4g network with voLTE support. Im thinking about Zephyr OS4.4 ...is there any other gd Cool rom available?
Note: need VoLTE support.

following

Yep We need It ..

Try TESLA rom, work liquid smooth.

aashishdamrait said:
Try TESLA rom, work liquid smooth.
Click to expand...
Click to collapse
VoLTE available ?

Hollow6 said:
VoLTE available ?
Click to expand...
Click to collapse
There's a option !!

I think XOSP ROM also Supports VoLTE
Edit : it doesn't

VoLTE in Lenovo Vibe K5 and Vibe K5 plus for Custom ROM

First of all Happy new year!
Here is orignal thread but since we got our own Forum, I am making a new one.
I Own Lenovo k5 plus (a6020a46 2 GB Indian variant). In India VoLTE is important for us, We have many Custom ROM thanks to
@scritch007, @Shreps and @Dreamstar, @Luiz Paulo Damaceno for kernels.
So it is polite request to all devs, please make VoLTE compatible with Custom ROM.
Here is captured OTA of VoLTE of device A6020a46 2GB
GDrive, Filedropper
Thanks to @brajesh143 for OTA
On Side Note, I extract zipped folder and there is file named 'NON-HLOS.bin.p' under firmware update folder.
I googled and found to enable VoLTE we need to flash 'NON-HLOS.bin.p' with fastboot , which I think is modem/radio.
I need expert advice on this.
Click to expand...
Click to collapse
here is the qpst flashable link
http://lenovo-forums.ru/topic/21889-lenovo-k5-plus-прошивка-a6020a46_s105_161124_16g_row_qpst/
This is the volte version with full system and boot]
Click to expand...
Click to collapse
Update-
Finally i update my phone with latest Stock with Volte(s105) and made a twrp backup but file is too large for uploading(Cellular data),
So If any devs want any specific folders or files I will upload.
BTW i think lenovo s105 update modem partition because on aokp when i dial *#*#4636# i saw VoLTE provision flags but after update even on Aokp now i can see VoLTE and video call provision Flags(See Screenshot)

Uploaded vibe k5 a6020a40 Indian varient with twrp flashable backup of s102 firmware (which enables volte in vibe k5 a6020a40) ..
https://mega.nz/#!qtZFQDLb!udeBTpXCW7XPj-TAczAtRWhtKLf65Ohok8Simubk9Hw

can anyone cofirm do volte work we flash cm14 after upgrading to official volte update ...

shomil49 said:
can anyone cofirm do volte work we flash cm14 after upgrading to official volte update ...
Click to expand...
Click to collapse
Not working but we get another flag(video). I think we only need some little modification of some files.

dr.bathman said:
Uploaded vibe k5 a6020a40 Indian varient with twrp flashable backup of s102 firmware (which enables volte in vibe k5 a6020a40) ..
Click to expand...
Click to collapse
Is it the whole firmware backup. If i restore this will i get volte enabled in my phone

Shivender Kumar said:
Is it the whole firmware backup. If i restore this will i get volte enabled in my phone
Click to expand...
Click to collapse
No

dr.bathman said:
No
Click to expand...
Click to collapse
Just install the latest stock firmware from http://moto.shreps.fr/ and install using qfil
Hello VoLTE
Sent from my Lenovo Vibe K5 Plus using XDA Labs

netship said:
First of all Happy new year!
Here is orignal thread but since we got our own Forum, I am making a new one.
Update-
Finally i update my phone with latest Stock with Volte(s105) and made a twrp backup but file is too large for uploading(Cellular data),
So If any devs want any specific folders or files I will upload.
BTW i think lenovo s105 update modem partition because on aokp when i dial *#*#4636# i saw VoLTE provision flags but after update even on Aokp now i can see VoLTE and video call provision Flags(See Screenshot)
Click to expand...
Click to collapse
Works on Lenovo K3 Note ?

volte for custom roms?

@netship
No One Answer This, I Want A Answer Too To This Question.....!!!
k4k said:
volte for custom roms?
Click to expand...
Click to collapse

netship said:
Not working but we get another flag(video). I think we only need some little modification of some files.
Click to expand...
Click to collapse
Please visit this thread. You may find solution.
Please hit Thanks if it works.

Does it support volte video calling facility ??

mejarkarak said:
Does it support volte video calling facility ??
Click to expand...
Click to collapse
No aosp rom supports ViLTE. May be developers can help to enable this feature in future.

Can't use VoLTE in lineage 14.1 on lenovo a6020
Its a super cool os but I'm stuck the VoLTE issue. In India VoLTE is a major feature as we use a Jio sim which uses VoLTE for calling. There is an option to enable VoLTE but it doesn't matter weather it is enabled or not bacause I simply can't make a VoLTE call. It is not a Jio sim issue as in the stock rom after an OTA uodate I used to call from Jio. Any solutions? Otherwise I've to revert back to stock rom

mayukh2000 said:
Its a super cool os but I'm stuck the VoLTE issue. In India VoLTE is a major feature as we use a Jio sim which uses VoLTE for calling. There is an option to enable VoLTE but it doesn't matter weather it is enabled or not bacause I simply can't make a VoLTE call. It is not a Jio sim issue as in the stock rom after an OTA uodate I used to call from Jio. Any solutions? Otherwise I've to revert back to stock rom
Click to expand...
Click to collapse
Have you enabled Wi-Fi video calling feature? If not, do it and restart your device. That might solve your problem.

riazul.islam20 said:
Have you enabled Wi-Fi video calling feature? If not, do it and restart your device. That might solve your problem.
Click to expand...
Click to collapse
Thanks for the response?.
Yeah I tried wifi calling, but that doesn't work.
I found a solution. First you have to flash the stock rom VoLTE functionality. Then you have have to flash the custom rom. (One thing to note here that while installing the custom rom, one should not wipe the system). But still there is a problem, you have to toggle off and on the Enhanced 4G LTE mode(VoLTE) to activate VoLTE functionality. And if you turn on or off mobile data the VoLTE functionality will be gone, then again you have to do the same.

mayukh2000 said:
Thanks for the response?.
Yeah I tried wifi calling, but that doesn't work.
I found a solution. First you have to flash the stock rom VoLTE functionality. Then you have have to flash the custom rom. (One thing to note here that while installing the custom rom, one should not wipe the system). But still there is a problem, you have to toggle off and on the Enhanced 4G LTE mode(VoLTE) to activate VoLTE functionality. And if you turn on or off mobile data the VoLTE functionality will be gone, then again you have to do the same.
Click to expand...
Click to collapse
Please go to this thread:
https://forum.xda-developers.com/k5-plus/how-to/lenovo-vibe-k5-plus-a6020a46-volte-t3629466

riazul.islam20 said:
Please go to this thread:
https://forum.xda-developers.com/k5-plus/how-to/lenovo-vibe-k5-plus-a6020a46-volte-t3629466
Click to expand...
Click to collapse
Thank you very much!!!?
You don't know how much you helped me. It works perfectly
Again, thanks a lot.

need twrp backup or flashable file
Here is orignal thread but since we got our own Forum, I am making a new one.
hii bro.I bricked my mobile.can u please share me twrp flashable lenovo vibe k5 plus stock rom or twrp backup file.I tried but found only backup for vibe k5 only.Kindly help me to fix the issue bro
Update-
Finally i update my phone with latest Stock with Volte(s105) and made a twrp backup but file is too large for uploading(Cellular data),
So If any devs want any specific folders or files I will upload.
BTW i think lenovo s105 update modem partition because on aokp when i dial *#*#4636# i saw VoLTE provision flags but after update even on Aokp now i can see VoLTE and video call provision Flags(See Screenshot)[/QUOTE]

Volte issue in lineage os custom rom
I am using lenovo vibe k5 plus and have lineage OS installed in it.......but I can't use the volte feature cuz previously my stock ROM is not updated to volte (and for some reason I can't even update my stock ROM to volte ) then I flash to lineage OS in hope that volte feature might work but still it doesn't work .
NOTE : I know I can solve this problem by downloading at least 1.5 GB file of stock ROM version s105(with volte enabled ) but I don't want to waste that much time and my data only to get revert BACK TO MY STOCK ROM !!!!!!
Plzz come with a alternative method to flashing volte update or something like that?!!
So I don't need to download stock ROM file
I have twrp recovery so I can flash any flashable file ( if you might have volte update zip file I hope )
So can anyone help PLZ?
If you have any other alternative ,it will solve my GREAT PROBLEM !!
THANKS IN ADVANCE

VoLTE works on OOS 3.5.6, but not on any CM14.1 ROM...

I will start right off the bat that I know it works very well on all ROMS for those that are in India. But can anyone here confirm VoLTE working on any custom Nougat ROM for those like me on T-Mobile in USA? It works flawlessly on 3.5.6, but as soon as I wipe and flash any custom 14.1 ROM, I lose it. The feature is enabled in SIM settings (Enhanced 4G LTE Mode) is enabled, but when I dial out, data switches from LTE to H. So this means even though the feature is enabled, it's not working on Nougat on T-Mobile in US.
Anyone?

M5devil said:
I will start right off the bat that I know it works very well on all ROMS for those that are in India. But can anyone here confirm VoLTE working on any custom Nougat ROM for those like me on T-Mobile in USA? It works flawlessly on 3.5.6, but as soon as I wipe and flash any custom 14.1 ROM, I lose it. The feature is enabled in SIM settings (Enhanced 4G LTE Mode) is enabled, but when I dial out, data switches from LTE to H. So this means even though the feature is enabled, it's not working on Nougat on T-Mobile in US.
Anyone?
Click to expand...
Click to collapse
Did you try clean flashing including system?
First install 3.5.6 and then clean flash any cm 14.1 ROM (especially the latest one from grarak). Volte works fine..

Is your VoLTE capable sim in Slot 1?

magnettron said:
Did you try clean flashing including system?
First install 3.5.6 and then clean flash any cm 14.1 ROM (especially the latest one from grarak). Volte works fine..
Click to expand...
Click to collapse
I've done that several times to no avail. First it was just flashing the 3.5.6 modem firmware while I was on RR 7.1.1. Then after that didn't work, I clean flashed OOS 3.5.6 and tested VoLTE and it worked as advertised with HD logo on calls and VoLTE logo in status bar. I was then happy and clean flashed (everything but internal storage) RR 7.1.1, enabled the Enhanced 4G LTE Mode, but that didn't work. I'm on Official CM 14.1 now with same result.
suraj.das said:
Is your VoLTE capable sim in Slot 1?
Click to expand...
Click to collapse
Yes it's in Slot 1.
Are you guys in US on T-Mobile? No offense to you guys, and I appreciate your help, but I know you got it working great on Jio in India... That might not be the case for us in US. That's why I want to hear from another T-Mobile customer to check if I'm not alone.
Thanks

In mean time I'm forced to stay on OOS 3.5.6 as VoLTE is working great on it.

M5devil said:
I've done that several times to no avail. First it was just flashing the 3.5.6 modem firmware while I was on RR 7.1.1. Then after that didn't work, I clean flashed OOS 3.5.6 and tested VoLTE and it worked as advertised with HD logo on calls and VoLTE logo in status bar. I was then happy and clean flashed (everything but internal storage) RR 7.1.1, enabled the Enhanced 4G LTE Mode, but that didn't work. I'm on Official CM 14.1 now with same result.
Yes it's in Slot 1.
Are you guys in US on T-Mobile? No offense to you guys, and I appreciate your help, but I know you got it working great on Jio in India... That might not be the case for us in US. That's why I want to hear from another T-Mobile customer to check if I'm not alone.
Thanks
Click to expand...
Click to collapse
Yeah I'm having same issue and it was working couple days ago it keeps dropping to H+ after couple days anyone help? It's not my service cause on my 5S I get LTE and it doesn't drop

M5devil said:
I've done that several times to no avail. First it was just flashing the 3.5.6 modem firmware while I was on RR 7.1.1. Then after that didn't work, I clean flashed OOS 3.5.6 and tested VoLTE and it worked as advertised with HD logo on calls and VoLTE logo in status bar. I was then happy and clean flashed (everything but internal storage) RR 7.1.1, enabled the Enhanced 4G LTE Mode, but that didn't work. I'm on Official CM 14.1 now with same result.
Yes it's in Slot 1.
Are you guys in US on T-Mobile? No offense to you guys, and I appreciate your help, but I know you got it working great on Jio in India... That might not be the case for us in US. That's why I want to hear from another T-Mobile customer to check if I'm not alone.
Thanks
Click to expand...
Click to collapse
Official CM 14.1 hasn't implemented Volte function yet, try the unofficial build from Grarak in basketbuild or andriod host.
As far as T-Mobile is concerned, if you do have Volte enabled in 3.5.6 (ie if you can make volte calls using oos 3.5.6, then i dont see a reason why it wont work on cm 14.1 unofficial).
Check out android development for OP2 to get the latest link from grarak.
Also slot 1 or 2 it doesn't matter. If you get Volte in oos 3.5.6 then in unofficial cm 14.1 you'll get it.
Dont know about RR though.

magnettron said:
Official CM 14.1 hasn't implemented Volte function yet, try the unofficial build from Grarak in basketbuild or andriod host.
As far as T-Mobile is concerned, if you do have Volte enabled in 3.5.6 (ie if you can make volte calls using oos 3.5.6, then i dont see a reason why it wont work on cm 14.1 unofficial).
Check out android development for OP2 to get the latest link from grarak.
Also slot 1 or 2 it doesn't matter. If you get Volte in oos 3.5.6 then in unofficial cm 14.1 you'll get it.
Dont know about RR though.
Click to expand...
Click to collapse
Thanks man, I'll check Graham build and report.

M5devil said:
Thanks man, I'll check Graham build and report.
Click to expand...
Click to collapse
Cheers mate, there are 2 different builds one from grarak and one from Seraph08. Try either one, both works fine.
I am using grarak and its stable and latest implementation of lineage.
https://mirror.srvr.gdn/?dir=grarak/oneplus2
or
https://basketbuild.com/devs/Seraph08/oneplus2/LineageOS

magnettron said:
Cheers mate, there are 2 different builds one from grarak and one from Seraph08. Try either one, both works fine.
I am using grarak and its stable and latest implementation of lineage.
https://mirror.srvr.gdn/?dir=grarak/oneplus2
or
https://basketbuild.com/devs/Seraph08/oneplus2/LineageOS
Click to expand...
Click to collapse
Just tried Grarak's latest build based on new LineageOS....still no go on VoLTE. The feature was already enabled under SIM 1 settings and as soon as I dial out LTE switches back to H
I'll try Seraph's build, but I'm afraid it will be the same... Are you on T-Mobile and VoLTE works CM14.1 for you?
Update: tried both builds, VoLTE is not working Again, it's enabled in the SIM settings, but when I dial out, LTE changes to H/H+.
I guess it's just not meant to be... I'll stick to OOS 3.5.6 for now
Thanks for your help!
Was downloading Seraph's build while on Grarak's and got a random reboot which never happened tocme before...

Have you enabled Enhanced 4G LTE Mode for the sim? That's the switch for VoLTE. Hope it worked
If the HD icon comes in the status bar and on notifications, then VoLTE is active.
Also set network type to LTE only for better use.

evilgenius94 said:
Have you enabled Enhanced 4G LTE Mode for the sim? That's the switch for VoLTE. Hope it worked
If the HD icon comes in the status bar and on notifications, then VoLTE is active.
Also set network type to LTE only for better use.
Click to expand...
Click to collapse
The problem is I had it enabled, but HD icon never comes up and VoLTE seems not to work on any CM141. ROM. But it works perfectly well on OOS 3.5.6. So I am not sure why this is the case... I guess I'll stay on OOS 3.5.6, unless another T-Mobile US user will confirm or disagree with my findings.
I know very well you guys have it working on JIO in India... this is not the case for me in USA on T-Mobile

M5devil said:
The problem is I had it enabled, but HD icon never comes up and VoLTE seems not to work on any CM141. ROM. But it works perfectly well on OOS 3.5.6. So I am not sure why this is the case... I guess I'll stay on OOS 3.5.6, unless another T-Mobile US user will confirm or disagree with my findings.
I know very well you guys have it working on JIO in India... this is not the case for me in USA on T-Mobile
Click to expand...
Click to collapse
Also check this under testing (dial *#*#4636#*#*)

evilgenius94 said:
Also check this under testing (dial *#*#4636#*#*)
Click to expand...
Click to collapse
This is what I see.

I guess I have to try this again on a CM14.1 ROM to see what it shows

Last thing u can try up is Clean Flash OOS 3.5.6 again and then clean flash some CM14.1 ROM
Something might work out

evilgenius94 said:
Last thing u can try up is Clean Flash OOS 3.5.6 again and then clean flash some CM14.1 ROM
Something might work out
Click to expand...
Click to collapse
I'll try that again tonight

M5devil said:
Just tried Grarak's latest build based on new LineageOS....still no go on VoLTE. The feature was already enabled under SIM 1 settings and as soon as I dial out LTE switches back to H
I'll try Seraph's build, but I'm afraid it will be the same... Are you on T-Mobile and VoLTE works CM14.1 for you?
Update: tried both builds, VoLTE is not working Again, it's enabled in the SIM settings, but when I dial out, LTE changes to H/H+.
I guess it's just not meant to be... I'll stick to OOS 3.5.6 for now
Thanks for your help!
Was downloading Seraph's build while on Grarak's and got a random reboot which never happened tocme before...
Click to expand...
Click to collapse
I assume that you did a clean flash (including system wipe in TWRP) over 3.5.6. If not the network will be unstable.
In one of the screenshot posted by you (in some above thread) I can see that Volte is enabled, is it on CM or 3.5.6 ?
T-Mobile in US is supported by 3.5.6 (Which I can see from the screenshot). So the firmware got the capability of Volte..
As of now there are 2 possibilities:
1 (If you clean flashed CM over OOS 3.5.6) : Then network is not stable, Network guru app will lock the LTE band, so give it a try with that. (If you need detailed steps with Network guru i can tell you that)
2 (If not clean flashed CM over OOS 3.5.6) : Recommend you to clean flash it. This will definitely work (suggest you to go for grarak). If you face issues after this, do let me know. We can find other work around.
Hope this helps.

magnettron said:
I assume that you did a clean flash (including system wipe in TWRP) over 3.5.6. If not the network will be unstable.
In one of the screenshot posted by you (in some above thread) I can see that Volte is enabled, is it on CM or 3.5.6 ?
T-Mobile in US is supported by 3.5.6 (Which I can see from the screenshot). So the firmware got the capability of Volte..
As of now there are 2 possibilities:
1 (If you clean flashed CM over OOS 3.5.6) : Then network is not stable, Network guru app will lock the LTE band, so give it a try with that. (If you need detailed steps with Network guru i can tell you that)
2 (If not clean flashed CM over OOS 3.5.6) : Recommend you to clean flash it. This will definitely work (suggest you to go for grarak). If you face issues after this, do let me know. We can find other work around.
Hope this helps.
Click to expand...
Click to collapse
Hey man, first of all I wanna thank you for helping me, I know it's an annoying topic for many.
I'll answer in order.
Yes, I did a clean flash, by wiping everything except internal storage. The screenshots I posted are from OOS 3.5.6. By the way, my hybrid TWRP doesn't get overwritten, so at least I don't have a headache reflashing recovery image after everything OOS flash. Unfortunately, it hadn't worked yet... Firmware is definitely VoLTE capable as I have it working very well now on OOS 3.5.6.
As for your suggestions, I tried both builds with clean flash, but they don't work. I kind of gave up after flashing nonstop and just stayed on OOS 3.5.6.
I think you're right though, CM14.1 definitely don't have VoLTE fully functional, at least for T-Mobile users, maybe it has to due with Band 12 (700a) as this is the band used in US for enhanced LTE.
I wanna hear from some other T-Mobile use, but appears there aren't that many...
I've tried Network Guru app when I has network signal drops, but I'm a little confused how to properly use it. I don't have a magic wand button, but through menu I can get to Band locking screen and in LTE section I had everything checked off. I know in US on T-Mobile we use bands 2 (2G), 4 (3G/4G), and new band 12 (enhanced 4G/LTE). When in the past I only locked band 12, I wasn't able to make calls at all as H/H+ were not active.
I will try to see what I have working now with VoLTE enabled on 3.5.6. I do know I'm mostly on band 4 and in some places band 12.
Hope this info helps.

Mikeyy233 said:
Yeah I'm having same issue and it was working couple days ago it keeps dropping to H+ after couple days anyone help? It's not my service cause on my 5S I get LTE and it doesn't drop
Click to expand...
Click to collapse
Are you also on T-Mobile?

how to enable volte for sm-j500f (samsung j5)?

guys did any one tried to get volte by patching or flashing in nougart or oreo .if there is way to enable volte pls suggest me or if there any custom rom which supports volte for sm-j500f(samsung j5)

mjhonny14377 said:
guys did any one tried to get volte by patching or flashing in nougart or oreo .if there is way to enable volte pls suggest me or if there any custom rom which supports volte for sm-j500f(samsung j5)
Click to expand...
Click to collapse
TW ROMs like serenity or Odyssey will have volte. Other than that there is no hope

garylawwd said:
TW ROMs like serenity or Odyssey will have volte. Other than that there is no hope
Click to expand...
Click to collapse
Thank you !