No Volte on roaming[Custom ROM][VOLTE] [JIO][MIDO] - Xiaomi Redmi Note 4 Questions & Answers

VoLTE is not appearing || working on custom rom (means can't make call)
Almost in all custom roms has this issue (Except DU latest)
created new APN settings too [which has fixed this issue previously] but now still same issue.
Looking for solution .
thanks :fingers-crossed:

storm_99 said:
VoLTE is not appearing || working on custom rom (means can't make call)
Almost in all custom roms has this issue (Except DU latest)
created new APN settings too [which has fixed this issue previously] but now still same issue.
Looking for solution .
thanks :fingers-crossed:
Click to expand...
Click to collapse
https://forum.xda-developers.com/xi...x-volte-suddenly-stopped-custom-roms-t3684442 found the solution

I'm currently using MiA1 with march security patch and an Airtel Sim card. I am facing the similar issue while roaming. I was trying your fix but I'm facing a problem here. Eachtime i add "ims" APN and hit the save button. It takes me back to APN list screen without adding/saving the "ims" APN and I don't get the VoLTE working either. What could be the issue here.
> I'm in the state where Airtel supports VoLTE.
> Airtel do support MiA1 because i was using VoLTE back at my home, it's an issue with roaming.
> 4G enhanced calling is enabled in SIM settings
Help!!

Related

voLTE not working on any rom

At first I thought I did some mistake in flashing but now I tried every custom ROM which supports voLTE (cm14.1 by santosh and abhishek,aosp LP & AOSP MM,CM13 snapshot) but I am not getting voLTE in any of the roms
voLTE is working fine on all miui ROMs
I tried changing APN to ims but whenever I save APN it disappears from APN list
same problem here
rajatchawla66 said:
At first I thought I did some mistake in flashing but now I tried every custom ROM which supports voLTE (cm14.1 by santosh and abhishek,aosp LP & AOSP MM,CM13 snapshot) but I am not getting voLTE in any of the roms
voLTE is working fine on all miui ROMs
I tried changing APN to ims but whenever I save APN it disappears from APN list
Click to expand...
Click to collapse
i too had same problem...tried many custom roms which support VoLTE but it is not working
volte only works on miui rom...did you got any solution??????
Did you flash the firmware file required before flashing abhishek987's CM14.1 ? Because that contains the modem files for VoLTE
First you flash aosp extended ROM as per their flashing guide you definitely get volte working. Then you enter twrp recovery ( I prefer zcx) , and factory reset and wipe only dalwik/ cache,data,cache DON'T WIPE SYSTEM , and flash any ROM finally volte v2 zip and reboot . you must get volte working in any nougat ROM.

How to get VoLTE & VoWifi in Germany working? (Telekom/ T-Mobile)

Hello everyone!,
Hopefully there is someone who knows, what i could do about this problem.
I'm not able to use VoLTE in Germany! Even T-Mobile supports it & it was shortly working on a different rom, currently it seems no where to work (IMS says "not registered")
Tried different ways to activate VoLTE first but no way.
Would be glad for any help!
A mi me pasa igual con vodafone españa y no encuentro la manera de activarlo
macarell_1 said:
A mi me pasa igual con vodafone españa y no encuentro la manera de activarlo
Click to expand...
Click to collapse
¿Por qué no podemos en España?
A ti te funciona el volte en españa?.Si es asi podrias explicar ,ya que a mi no me funciona
macarell_1 said:
A ti te funciona el volte en españa?.Si es asi podrias explicar ,ya que a mi no me funciona
Click to expand...
Click to collapse
Tampoco, no me funciona, estoy con Yoigo.
DJ_BARO said:
Hello everyone!,
Hopefully there is someone who knows, what i could do about this problem.
I'm not able to use VoLTE in Germany! Even T-Mobile supports it & it was shortly working on a different rom, currently it seems no where to work (IMS says "not registered")
Tried different ways to activate VoLTE first but no way.
Would be glad for any help!
Click to expand...
Click to collapse
Heyyo, odds are you'll need updated APN settings. Please download this TWRP installer I made to update APN settings from Google.
https://sourceforge.net/projects/lineageos-for-x2/files/Mods and Tweaks/
Download > install via TWRP > reboot to system.
Then once in Android again? Settings > network & internet > mobile network > advanced > access point names > "..." Menu button > reset to default.
Hopefully after that? It will work. I can't guarantee though that Google APN settings already has the necessary APN settings for that network, but they should be more up to date than our current ones.
ThE_MarD said:
Heyyo, odds are you'll need updated APN settings. Please download this TWRP installer I made to update APN settings from Google.
https://sourceforge.net/projects/lineageos-for-x2/files/Mods and Tweaks/
Download > install via TWRP > reboot to system.
Then once in Android again? Settings > network & internet > mobile network > advanced > access point names > "..." Menu button > reset to default.
Hopefully after that? It will work. I can't guarantee though that Google APN settings already has the necessary APN settings for that network, but they should be more up to date than our current ones.
Click to expand...
Click to collapse
--------------------------------------------------------------------------------------------------------------------------------------------------------------------
Good day
First of all thank you very much for your help (and to help others aswell) & should I say for your effort in developing custom roms for our beloved Le Max 2 :good:
Unfortunately VoLTE still doesn't want to work, currently sticking still with latest RR nougat from 05/10/17. But I tried some Roms in the meantime & interesting enough, on a very few (i think your LineageOS aswell) VoLTE did actually work. Maybe trying also to reset that system + that fix (I installed it in a time where i didn't have VoLTE)
Actually I'd like to update to at least Oreo too, but I heard that the sound on the phone is not supposed to be good (quiet or noisy): Is it also the case with the latest version of your Rom? That's pretty much the only reason I don't want to update. (And even with the current Rome it's pretty quiet)
Trying out a few EUI Roms in the meantime, but because of very outdated security patches & almost no substrate support it's quite a pain
EDIT: Also forget to mention: In *#*#4636#*#* Settings, VoLTE is enabled.
However, I don't expect you to be intensively involved with that, but of course if you have any more ideas, i'll appreciate that.
Since sometimes even in custom roms, where VoLTE worked at first & later on it didn't always assumpts, that the missing band 20 (which is very essential at least here in Europe, X829 version ) could also play a role in that. (LTE itself works here, where I live: But maybe VoLTE is also coupled to band 20 here.)
T-Mobile justifies it like this & can't help me futher ("Doesn't support all frequencies so...")
I still can not turn it on after updating the apns
Same here.
But what i would also like to mention: After flashing this Zip & reseting APN to stock values, phone calls are broken for me! (After Dialing, it immediately says "Call ended") Thankfully i did make a TWRP backup before.
DJ_BARO said:
--------------------------------------------------------------------------------------------------------------------------------------------------------------------
Good day
First of all thank you very much for your help (and to help others aswell) & should I say for your effort in developing custom roms for our beloved Le Max 2 :good:
Unfortunately VoLTE still doesn't want to work, currently sticking still with latest RR nougat from 05/10/17. But I tried some Roms in the meantime & interesting enough, on a very few (i think your LineageOS aswell) VoLTE did actually work. Maybe trying also to reset that system + that fix (I installed it in a time where i didn't have VoLTE)
Actually I'd like to update to at least Oreo too, but I heard that the sound on the phone is not supposed to be good (quiet or noisy): Is it also the case with the latest version of your Rom? That's pretty much the only reason I don't want to update. (And even with the current Rome it's pretty quiet)
Trying out a few EUI Roms in the meantime, but because of very outdated security patches & almost no substrate support it's quite a pain
EDIT: Also forget to mention: In *#*#4636#*#* Settings, VoLTE is enabled.
However, I don't expect you to be intensively involved with that, but of course if you have any more ideas, i'll appreciate that.
Since sometimes even in custom roms, where VoLTE worked at first & later on it didn't always assumpts, that the missing band 20 (which is very essential at least here in Europe, X829 version ) could also play a role in that. (LTE itself works here, where I live: But maybe VoLTE is also coupled to band 20 here.)
T-Mobile justifies it like this & can't help me futher ("Doesn't support all frequencies so...")
Click to expand...
Click to collapse
Thank you for the kind words! Yeah on Oreo? I've made a crap load of prop changes that relate to IMS / VoLTE, so that may have been the difference.
I don't think most of them would directly translate to Nougat ROMs as they don't have the same blobs as our Oreo based ones which changed a bunch of properties to vendor... So I'm unsure exactly what on RR Nougat would need to be changed.
Audio on Oreo? I fixed Noise Cancelling / Echo a while back, so it's super good for that. I am cranking up a few more volume parts just to Max them out before potentially sound distorts heh. :good:
Sergey also had a fix for microphone source on Oreo ROMs to also improve things for those trying with a 3.5mm headset :good:
As for audio quality? On LineageOS I wouldn't get approved for Dolby Atmos, so that would require flashing audio mods (RR Nougat included the mod ViperFX Audio or something like that).
The only low audio issue that needs to be resolved is WhatsApp audio recordings as it does some odd method of selecting audio recording source... But the rest is good.
I can't test VoLTE tbh... Canadian carriers currently blacklist any BYOD... So my imported LeEco Le Max 2 doesn't get activated for VoLTE or WiFi calling sigh... As if having the most expensive mobile data plans in the world wasn't bad enough eh? So yeah, I'm not too sure what else can help...
macarell_1 said:
I still can not turn it on after updating the apns
Click to expand...
Click to collapse
Can you please provide which ROM you are on?
DJ_BARO said:
Same here.
But what i would also like to mention: After flashing this Zip & reseting APN to stock values, phone calls are broken for me! (After Dialing, it immediately says "Call ended") Thankfully i did make a TWRP backup before.
Click to expand...
Click to collapse
Ah for that, yeah a backup or reflash the ROM as it'll overwrite the mod. Sorry I didn't know you were running a Nougat ROM, so maybe it's not compatible with the latest APN update from Google... But it should though, as I don't think their APN list is version specific as they list it under "master" branch, but I could be wrong...
Now with rr android 6, but we are the e tested all android 6.7.8 and 9 without any resutado and changed austes in build.prop etc etc and there is no way to make it work.Many thanks for your collaboration

VoLTE disappeared from my le max 2 (x821)

Hello,
Yesterday I flashed a new rom known as RevengeOS on my le max 2 which is based on Android Pie, there were no VoLTE support on that rom, to fix that issue I installed a magisk module known as VoEnabler by Toucan but that didn't worked and I noticed that my network started fluctuating but before installation of the module my network was okay and there were no fluctuating issues at all so I disabled the module but the network fluctuating issue was still there. So I switched to the original EUI 5.6 official stock rom but noticed that the VoLTE support was not found even in the stock rom and the Network fluctuating issue is pretty noticeable, So I searched about this issue on google and found some build.prop script to enable VoLTE and those were-
persist.dbg.ims_volte_enable=1
persist.dbg.volte_avail_ovr=1
persist.dbg.vt_avail_ovr=1
persist.dbg.wfc_avail_ovr=1
persist.radio.rat_on=combine
persist.radio.data_ltd_sys_ind=1
persist.radio.data_con_rprt=1
persist.radio.calls.on.ims=1
Bye the way I'm using Jio4G sim and unfortunately even Jio4Gvoice is not working and I can't make any calls
but that didn't worked also, maybe I messed up the build.prop by adding these lines but I found no way to bring back volte support and I didn't have any backup of old build.prop.
If you are a LE MAX 2 user then please help me out to fix this problem somehow I'd be glad if get any reply from you guys
Thanks.

crdroid s9 no screen mirror

hi i just installed latest crdroid rom on my s9 g960f evrything is running good except screen mirroring can not be activated does anybody know why and how to solve this problem? thanks
juan rius said:
hi i just installed latest crdroid rom on my s9 g960f evrything is running good except screen mirroring can not be activated does anybody know why and how to solve this problem? thanks
Click to expand...
Click to collapse
Cannot be activated means that you don't see any devices on the list?
If that's the case it means you need to enable the wireless display setting within build.prop. It may has been disabled because your device doesn't support it very well or because it causes greater stability issue with the ROM. So think about it before doing any modifications.
Link:
https://android.stackexchange.com/questions/204787/add-miracast-function-to-newer-android-versions
Thank you i tried adding the line in the build.prop but still not working it was working perfectly with stock rom but it will not with the 3 custom roms now i am using crdroid but no luck i even used the mirror enabler but is not compatible with android 10.

Redmi 9S and WiFi Calling (T-mobile)

Has anyone else with T-mobile service been able to get WiFi Calling to work either with a custom ROM or the latest MIUI Firmware? I currently have the latest AOSiP ROM installed, and everything but WiFi Calling is active (see screenshot link below).
https://imgur.com/a/kwzTA0Z
(*#4636#*)
https://imgur.com/a/RDRzYLB
(Network settings)
The closest I have come is using Google Voice Wifi calling, but of course that shows up as a different number, which is a pain. I have not tried the latest MIUI Stock firmware yet. If anyone has been successful I would appreciate tips.

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