VOLTE Call working on all custom ROMs based on 5.1/6.0 but no voice. - X Play Q&A, Help & Troubleshooting

Hi developer
I flashed ur ROM .its awesome.
The very anticipated thing happened my phone
VOLTE CALL connected.other side getting phone ring and call is under process but not able to hear voice both side.
Messages going flawless on jio VOLTE.
Sir is there way to get voice on either side.
This is even worked on 5.1.1 on all custom roms.
6.0.1versions.
Dear developer kindly add an option ENABLE 4G VOICE MODE under settings. I think this will fix for sure.
I don't know how to do it.
If u fix this small issue we will enjoy all custom ROMs all versions of androids with VOLTE calls.
Thanks sir

drnaren1 said:
Hi developer
I flashed ur ROM .its awesome.
The very anticipated thing happened my phone
VOLTE CALL connected.other side getting phone ring and call is under process but not able to hear voice both side.
Messages going flawless on jio VOLTE.
Sir is there way to get voice on either side.
This is even worked on 5.1.1 on all custom roms.
6.0.1versions.
Dear developer kindly add an option ENABLE 4G VOICE MODE under settings. I think this will fix for sure.
I don't know how to do it.
If u fix this small issue we will enjoy all custom ROMs all versions of androids with VOLTE calls.
Thanks sir
Click to expand...
Click to collapse
You have to flash the latest stock rom first so that the modem gets updated to support volte calls. Afterwards you can flash any rom.
Sent from my Moto X Play using Tapatalk

K.khiladi said:
You have to flash the latest stock rom first so that the modem gets updated to support volte calls. Afterwards you can flash any rom.
Sent from my Moto X Play using Tapatalk
Click to expand...
Click to collapse
Dear friend that's I tried but there is no voice but call connected.
I think I came to conclusion that the option 4g enhanced call option not given under sim settings.
Out going call coming and connected, incoming call coming and connected, but the real problem is NO VOICE HEARING, OR NOT ABLE TO HEARING BY OTHER PERSON!!!
in this case what we can do to properly working solution.
Thanks any dev please fix this issue.

drnaren1 said:
Dear friend that's I tried but there is no voice but call connected.
I think I came to conclusion that the option 4g enhanced call option not given under sim settings.
Out going call coming and connected, incoming call coming and connected, but the real problem is NO VOICE HEARING, OR NOT ABLE TO HEARING BY OTHER PERSON!!!
in this case what we can do to properly working solution.
Thanks any dev please fix this issue.
Click to expand...
Click to collapse
The enhanced 4g option is present in all Roms. Every rom now supports volte. Something must be wrong on your device.
Sent from my Moto X Play using Tapatalk

Once again I request u please install any custom 5.1.1 or mm ROM.and check surely u will Nevers found enhanced 4g LTE option.I am not saying about base naugat rom, I knew the option was present in all nougat ROMs but not in lollipop and mm ROMs.
Kindly check sir

drnaren1 said:
Once again I request u please install any custom 5.1.1 or mm ROM.and check surely u will Nevers found enhanced 4g LTE option.I am not saying about base naugat rom, I knew the option was present in all nougat ROMs but not in lollipop and mm ROMs.
Kindly check sir
Click to expand...
Click to collapse
You won't find it in any lollipop or Marshmallow Roms because that particular feature wasn't implemented in those Roms. It's implemented in only nougat Roms. So if you want volte, flash the latest nougat rom.
Developers have moved ahead to nougat now and soon will move to android O.
Sent from my Moto X Play using Tapatalk

Now yesterday successfully installed enhance 4g LTE option.
Check my ss
Still no voice.
Sorry all mm and lollipop capable for this feature.
Anyway thanks for suggestions

drnaren1 said:
Now yesterday successfully installed enhance 4g LTE option.
Check my ss
Still no voice.
Sorry all mm and lollipop capable for this feature.
Anyway thanks for suggestions
Click to expand...
Click to collapse
I have done some digging and experimenting and came up with this , i am on cm13 with volte working you just need to flash this zip file named as - "Volte patch universal MM" through recovery
https://www.google.co.in/amp/s/forum.xda-developers.com/g4-play/themes/uni-volte-patch-t3531167/amp/
And then , volte will work for your device , hope it works for you

Related

A5_UL Eu single sim (and any compatible variants) Working ROM thread

Hi all.
I'm using CM12.1 5.1.1 from 20150429. Grarak unofficial ROM.
Any Cm12.1 based ROM newer than this has bugs making my phone unusable.
-long time detecting sim card, and long time getting a cellular connection once sim detected
-SMS not sending or receiving
-no calls incoming
Which basically make it a mini tablet ...
So far I've tried a pacman 5.0.3 ROM but found it sluggish.
Does anyone with this same model of phone have a workaround or a suggestion of a stable working 5.1 ROM?
Has anyone tried updating RUU with either success or failures to report?
I'm at a loss here and its a shame, this phone is good value for money and was working well up to this last cm12.1 build.
I really don't want to go back to 5.0, and I'm not sure any sense/stock ROM is better? Can you share positive experience on this matter?
Thanks to all devs who give their time to allow us to use and own our phones. I am grateful and in no way taking any of this for granted.
Without you we'd all have locked phones and no freedom.
And peace to all, above and beyond ALL the rest!
Stock with xposed & some mods like Nitro X spark works fine for me, as there is no good ROM for our phone .. the bugs makes the phone unusable with custom roms :/
And you don't have issues with disk space etc? Stock 5.0, 5.1 or 4.4 ?
aftertzf said:
And you don't have issues with disk space etc? Stock 5.0, 5.1 or 4.4 ?
Click to expand...
Click to collapse
nah link2sd works great for me
http://forum.xda-developers.com/desire-816/development/rom-t3282978/page71
Working CM13!!!!!
:laugh:

Enable VoLTE step by step tutorial (video)

Hello guys... i have seen many threads and comments in which enabling volte for Jio sim card is shown step by step... thr r many ppl who doesnt know wht exactly to be done (noob ppl)... so i made a complete dedicated video to help our S6 community... i hope admins wont mark it as a spam coz this is damm helpful video for enabling volte in any S6 variant...
LINK : https://www.youtube.com/watch?v=MlkaziK6AkY
Works only for stock Rom not working for custom Roms
Joseph Dhanush said:
Works only for stock Rom not working for custom Roms
Click to expand...
Click to collapse
In this video i have shown this for custom rom only !!! It works for both custom nd stock rom
Abrar123 said:
In this video i have shown this for custom rom only !!! It works for both custom nd stock rom
Click to expand...
Click to collapse
no ur wrong not working for ported roms like note 5.1 a8 and note 7 roms only stock based will work even i spoke to another dev about this he also said same...
What happened to the link
i have griffin Rom and install this Volte fix . Problem Volte dont function.
It doesn't work either on Unofficial XtreSto 1.1 or latest stock firmware (XEO) :/
The function simply doesn't appear although my carrier fully supports VoLTE and VoWiFi (TMobile)

please help developers. how use Volte in moto x play's. custom rom please help me

Im tested many custom ROMs
Plz help me how to enable volte in custom ROM. And plz help me
also i can't use jio4g voice app
Even when I'm installing jio4g voice apk. That's not working mean we only make calls with stock dialer app. Help me please....
Volte is only supported in stock roms
k
But I can't use Jio4g voice apk also. Y???
Me neither of you solved your problem. kindly send it to me 2.
mani198 said:
But I can't use Jio4g voice apk also. Y???
Click to expand...
Click to collapse
I got Moto x play as well I joined XDA today itself in hope to find the answer to my problem. It's the same as yours.
I installed custom rom cryogen 13 on my XT1562 that's Moto X play I had already upadted to 6.0.1. So, Now my problem is I can't get 4g on my phone I also use jio used* because I can call people and can receive them too but they or me neither of us are able to hear anything.
Kindly help.
Thanks in advance.
my problem also
Any can u help me
And not able to use Jio4gvoice app also

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
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Are you also on T-Mobile?

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