Question Issues with network type selection - Redmi Note 9T

In "Select network type" in "SIM card and mobile network" of my RN 9T, for SIM1 there are only 2 options (LTE and 5G) while SIM2 has all network types (2G, 3G, LTE and 5G). Moreover, VoLTE option for SIM1 is greyed out and cannot be activated/deactivated. I do not understand why my SIM1 has only 2 options and VoLTE is greyed out. My MIUI version is 12.0.5.
Anyone has the same issues? Kindly share how to solve this problem.

VoLTE * # * # 86583 # * # *
VoWiFi / WLAN * # * # 869434 # * # *

iccom100 said:
VoLTE * # * # 86583 # * # *
VoWiFi / WLAN * # * # 869434 # * # *
Click to expand...
Click to collapse
Thank you for your advice.
Those codes were already used to activate relevant services. But the problem I am having is not that. Please read my description again. Btw, which version of MIUI are you on now?

vanthatou said:
In "Select network type" in "SIM card and mobile network" of my RN 9T, for SIM1 there are only 2 options (LTE and 5G) while SIM2 has all network types (2G, 3G, LTE and 5G). Moreover, VoLTE option for SIM1 is greyed out and cannot be activated/deactivated. I do not understand why my SIM1 has only 2 options and VoLTE is greyed out. My MIUI version is 12.0.5.
Anyone has the same issues? Kindly share how to solve this problem.
Click to expand...
Click to collapse
Hey there bud, try this *#*#4636#*#* and it will take you to a different screen then select the first phone selection like in my case I'm using 2 sim cards, scroll down to SET PREFERRED NETWORK TYPE and select anything you want from the drop down. Good luck bed.

My MIUI version is 12.0.4 QJEEUXM , for me it is active on sim 1

iccom100 said:
My MIUI version is 12.0.4 QJEEUXM , for me it is active on sim 1
Click to expand...
Click to collapse
Problem not solved. Here are the screenshots.

iccom100 said:
My MIUI version is 12.0.4 QJEEUXM , for me it is active on sim 1
Click to expand...
Click to collapse
Problem not solved. Still LTE and 5G are the only options for Sim1 and VoLTE for Sim1 still grayed out.
Click to expand...
Click to collapse

Problem not solved. Still LTE and 5G are the only options for sim1 and volte for sim1 grayed out.

Do you have or can you borrow a different sim from a different carrier and put it in that slot, then try checking it again? I don't know where you live but sometimes in the USA (where carriers get away with murder) the carries disable/gray out/hide menus, etc.
For example, in the USA, even after using the codes above to disable carrier checking for Volte and Wowfi, only Volte is enabled, because wifi calling must be turned on by the carrier.
It seems very odd that you can't set the preferred network, I know, but I also have this issue on an unlocked by ATT branded LG phone in the USA, so it's worth switching sims to see if anything changes.
Good luck!

You are right.
brasscupcakes said:
Do you have or can you borrow a different sim from a different carrier and put it in that slot, then try checking it again? I don't know where you live but sometimes in the USA (where carriers get away with murder) the carries disable/gray out/hide menus, etc.
For example, in the USA, even after using the codes above to disable carrier checking for Volte and Wowfi, only Volte is enabled, because wifi calling must be turned on by the carrier.
It seems very odd that you can't set the preferred network, I know, but I also have this issue on an unlocked by ATT branded LG phone in the USA, so it's worth switching sims to see if anything changes.
Good luck!
Click to expand...
Click to collapse
You are right. I did as you advised and all network options are shown and volte is not greyed out. It is indeed a problem of the carrier, not the phone then.
Thank you very much.

vanthatou said:
Thank you for your advice.
Those codes were already used to activate relevant services. But the problem I am having is not that. Please read my description again. Btw, which version of MIUI are you on now?
Click to expand...
Click to collapse
pardon me, you probably know this already, but just in case (cause I made this mistake myself) -- carrier checking has to be DISabled for features to be enabled. (I thought it was the opposite for a very long time).

Related

Bug with OxygenOS 4.0.2

Not able to see the option enhanced Communications under sim & network options after upgrading to OxygenOS 4.0.2.
can one tell me how to get that option, i am not able to use Jio network
anilkolisetty said:
Not able to see the option enhanced Communications under sim & network options after upgrading to OxygenOS 4.0.2.
can one tell me how to get that option, i am not able to use Jio network
Click to expand...
Click to collapse
This is likely because the provider doesn't support enhanced features, or doesn't support enhanced features on your plan. I didn't have the enhanced features available with AT&T, after switching to T-Mobile the Enhanced Features section then became available and I was able to enable voice over wifi and volte.
I can't see Enhanced features... TR Turkcell and Vodafone TR?
There's no thing as "Enhanced Features" in 4.0.2. Once you select Jio as your primary data sim, you can see the option of "Use VoLTE when available" and you just have to turn it ON.
Selected Jio as primary data sim
Even though I selected Jio as a primary Data sim I am not able to see use VoLTE when available
Change Sim Card from 1 to 2 or vice versa...??
anilkolisetty said:
Not able to see the option enhanced Communications under sim & network options after upgrading to OxygenOS 4.0.2.
can one tell me how to get that option, i am not able to use Jio network
Click to expand...
Click to collapse
Change Sim Card from 1 to 2 or vice versa...??
It comes under Enhanced Communications in Sim and Network settings.
SidMAX said:
Change Sim Card from 1 to 2 or vice versa...??
It comes under Enhanced Communications in Sim and Network settings.
Click to expand...
Click to collapse
I tried that at least 3 to 4 times still not getting that option any work around
anilkolisetty said:
I tried that at least 3 to 4 times still not getting that option any work around
Click to expand...
Click to collapse
Is your default sim for cellular data set as jio sim. Plus checking sim options like data roaming and checking apn settings seems to be the only option, before full wipe and refresh
SidMAX said:
Is your default sim for cellular data set as jio sim. Plus checking sim options like data roaming and checking apn settings seems to be the only option, before full wipe and refresh
Click to expand...
Click to collapse
Yes... my default sim is Jio only, i am getting the internet but not getting the VoLTE option to make calls

How to enable VoLTE on Pixel?

Hi guys.
Let me elaborate my question.
1. I am totally aware that VoLTE on Android at the moment generally requires the handset to be from the carrier, or from the same region as the carrier for it to have the correct VoLTE (and VoWIFI) settings.
2. I am also totally aware that since Android 6.0, there actually has been a provision to allow carriers to send carrier settings to the user. I also know that this isnt being widely used.
After my ownership of my Pixel XL, I moved to a HTC U11, which I have flashed a custom ROM. This custom ROM managed to have the carrier settings for VoLTE for my carrier baked in.
I am keen on getting a Pixel XL2, so Im keen to see what the Pixel community is doing to enable VoLTE on networks that arent stocking the Pixel or Pixel XL.
Here in Australia, both generations of the pixel seem like they will be Telstra exclusives. and I am not inclined to go on their network!
Thanks for any assistance!
I use it with T-Mobile, only Verizon stocks it in the States. Volte works fine for me. Nothing i needed to do other than to setup the phone with the Sim card in the device.
Same here, got it with my T-Mobile SIM card.
This worked for me. Go to dialer and dial
*#*#4636#*#*
Phone Information
Turn on VoLTE
Turn on Video Calling
Turn on Wi-Fi Calling
Exit
I'm on Oreo 8.1 on my P2 XL, looks like it's already enabled. I'm on AT&T.
View attachment 4317129
Change carrier. AFAIK you'll never get enhanced LTE services using a non-AT&T branded phone on their network. Once I switched my pixel xl to T-Mobile things like that and wifi calling worked fine.
My condolences to your Pixel XL 2. I was in a Verizon store the other day just to check out PXL2. The blue tint when turning the phone horizontally - horrific. Also, barely faster than my Pixel XL, even if you care for that kind of thing (speed.)
CHANGiism said:
This worked for me. Go to dialer and dial
*#*#4636#*#*
Phone Information
Turn on VoLTE
Turn on Video Calling
Turn on Wi-Fi Calling
Exit
Click to expand...
Click to collapse
Same problem in Argentina, Pixel is NOT SOLD here so.... out of luck, but I tried this (already knew of the menu) and all my options are blacked out -can't enable any of them-, advice?????
Thanks.
If you can get root on your phone, flash magisk and there is a module in there to install that can enable VoLte and Wifi calling, worked for me on AT&T.
loeffler23 said:
If you can get root on your phone, flash magisk and there is a module in there to install that can enable VoLte and Wifi calling, worked for me on AT&T.
Click to expand...
Click to collapse
I need to try this when I get home. I get nowhere with ATT
LubbocksFall said:
I need to try this when I get home. I get nowhere with ATT
Click to expand...
Click to collapse
the module only changes the settings to allow for toggling but does not provide needed ims libraries.
CHANGiism said:
This worked for me. Go to dialer and dial
*#*#4636#*#*
Phone Information
Turn on VoLTE
Turn on Video Calling
Turn on Wi-Fi Calling
Exit
Click to expand...
Click to collapse
I had to toggle VoLTE off then on, restart. It's working for me now
"Turn on Video Calling"
Option is disabled, couldn't turn on
Depends if you're on Verizon or straight talk or what. I'm on straight talk and they don't offer VOLTE even though they use Verizon towers.
Using *#*#4636#*#*, the VoLTE provisioned option is greyd out. Anyone has a solution for this?
HSOC said:
Using *#*#4636#*#*, the VoLTE provisioned option is greyd out. Anyone has a solution for this?
Click to expand...
Click to collapse
It means your operator is not offering VoLTE, or, as in my case, Pixel XL is not approved by the operator. I have VoLTE on my SIM enabled and working with operator approved devices but network rejects Pixel as not compatible one.
ylapas said:
It means your operator is not offering VoLTE, or, as in my case, Pixel XL is not approved by the operator. I have VoLTE on my SIM enabled and working with operator approved devices but network rejects Pixel as not compatible one.
Click to expand...
Click to collapse
Operator offers VoLTE and it doesn't filter IMEI like in some cases. Other not approved devices (e.g xiaomi, oneplus) managed to enable volte via shortcuts. I am asking for a similar workaround. --thanks
Of you're on Straight Talk you're SOL. They don't offer it even if you're using a Verizon SIM
If you had geryed provisioning options you need to use magisks voenabler. a did it right now on december pie update. Now I have all enabled. Just waiting for operator to enable volte for my number. I wonder it will active.
Hi, my carrier does support VoLTE but the Pixel is not on its whitelist.
When dialing *#*#4636#*#* and going into phone info, the switches for "VoLTE Provisioned" is off and greyed out, but at the top of this screen I see "Voice Network Type: LTE". Does that mean I am getting VoLTE? I cannot see any other sign or symbol when calling. (I know some devices have a VoLTE symbol either in the status bar or during a call)

Xiamoi mi A2 lite volte


1s
Hi guys purchased a xiamoi mi A2 lite global for use in UK I'm using bands 800 and 1800 but there is no volte available checked in settings and there is no switch to activate it. My network does support it and every article I've read says it should work, hope you guys can help. TIA
https://forum.xda-developers.com/mi-a2-lite/help/4g-t-mobile-t3831081/post77710163
onyme said:

1s
Hi guys purchased a xiamoi mi A2 lite global for use in UK I'm using bands 800 and 1800 but there is no volte available checked in settings and there is no switch to activate it. My network does support it and every article I've read says it should work, hope you guys can help. TIA
Click to expand...
Click to collapse
did you ever get this sorted? what network are you on
toge64 said:
did you ever get this sorted? what network are you on
Click to expand...
Click to collapse
Hi guys this worked for me, I'm on three network UK
Went into settings - date - time
Switched off auto time zone then selected time zone enter Hong Kong come out of settings then select phone dialler and enter ussd code *#*#86583#*#* then rebooted phone HD appeared on notification bar which is volte.. if it works for you remember to change auto time zone to auto when finished.. hope this helps..
I was having problem with volte, it didn't work, although i turned on this option with my network carrier. Sim card was in SIM1 slot, but in settings it said SIM2 (maybe Pie bug?) and i couldn't get it working.
After changing sim to SIM2 slot i only had emergency calls. After restarting phone sim started working and it showed sim card in SIM1 (although it was in SIM2 slot). I disabled volte carrier check with *#*#86583#*#* and voila, settings for volte calling showed up and HD icon showed up
also i noticed when my sim was in SIM1 slot, when i opened those special settings with *#*#4636#*#* there were no IMSI number, and voice and network type was unknown, but after changing it to SIM2 slot, values were finally normal and IMS status showed volte available
I hope this will help someone.
Hi all! On T-Mobile USA!
Using the Dialer codes I managed to get the provisioning and all ticked. Then I cycled through every Network Type option and at one point it magically DID register, as you can see in my screenshot!
I continued testing codes after that and after no success, went back to this and was not able to replicate it.
What would we need to do from here, once IMS is registered? Can anyone else get their IMS registered on Tmo USA?
Thanks!
onyme said:
Hi guys this worked for me, I'm on three network UK
Went into settings - date - time
Switched off auto time zone then selected time zone enter Hong Kong come out of settings then select phone dialler and enter ussd code *#*#86583#*#* then rebooted phone HD appeared on notification bar which is volte.. if it works for you remember to change auto time zone to auto when finished.. hope this helps..
Click to expand...
Click to collapse
Never switched timezone. Just typing *#*#86583#*#* brings volte...

No VoLTE or VoWiFi after upgrade to Android Pie (TA-1045) on T-Mobile USA

Hello,
Anybody else has this problem? All worked fine till the upgrade.
I'm on mintsim and all seems to be well. Volte is on and I just tested WiFi calling which worked fine.
It's the only problem I had after the update on pie.
I used to have volte but now i haven't.
No icon on status bar , first I deactivated the volte from my carrier then I activated again but the problem remains. The support of Nokia have been suggested to
cleared cache on carrier service and made soft reset but nothing done
No problems here, same phone, same network. Ota was sideloaded with no factory reset.
Same here. Same phone, same tmo. I use wifi calling for 99 percent of my calls, and it works just fine for me after sideloading the update.
redbeard1083 said:
I'm on mintsim and all seems to be well. Volte is on and I just tested WiFi calling which worked fine.
Click to expand...
Click to collapse
Thank you - I did a factory reset and the problem was resolved. Seems something wrong went during the upgrade to Android Pie. Despite the fact that phone is not rooted or modified in any way.
Having same problem, Factory reset didnt solve the problem... (done twice now). have 3 of these phones... one has volte and vowifi working after update, 2 = no go. Any thoughts on how I can gets these 2 phones working with all of Tmo's services?
Is there a way to check volte? In settings, it's turned on, but I never see an icon. Should I be seeing an icon?
VoLTE will show up at the top of the screen next to your signal icon. (Or VoWiFi if on a wifi signal that is capable). Mine doesn't show because the phone borked it's update and for some reason wont register to the IMS server now. You can also check if you are provisioned for VoLTE and VoWiFi in the phone status by dialing *#*#4636#*#* and selecting the top "phone information". Furthermore you can check if IMS is registered (required to use either service) by then selecting the three dots in the upper right hand corner and selecting "IMS service status".
If you have both options enabled in the phone settings and the Phone information shows you are provisioned for them, but your IMS is not registered... your November update probably borked as well. (this is the hole I'm currently in)
I might add for those that may not know, if you do not have provisioning, this is the fault (or limitation) of your provider. Consult with them to correct. If you are provisioned however and IMS is not registered, Make sure your APN settings are correct (again to your spec provider). If still unable to get IMS registration, well... welcome aboard!
MadGoat said:
VoLTE will show up at the top of the screen next to your signal icon. (Or VoWiFi if on a wifi signal that is capable). Mine doesn't show because the phone borked it's update and for some reason wont register to the IMS server now. You can also check if you are provisioned for VoLTE and VoWiFi in the phone status by dialing *#*#4636#*#* and selecting the top "phone information". Furthermore you can check if IMS is registered (required to use either service) by then selecting the three dots in the upper right hand corner and selecting "IMS service status".
If you have both options enabled in the phone settings and the Phone information shows you are provisioned for them, but your IMS is not registered... your November update probably borked as well. (this is the hole I'm currently in)
I might add for those that may not know, if you do not have provisioning, this is the fault (or limitation) of your provider. Consult with them to correct. If you are provisioned however and IMS is not registered, Make sure your APN settings are correct (again to your spec provider). If still unable to get IMS registration, well... welcome aboard!
Click to expand...
Click to collapse
That's where I'm at then
erdingerchamp66 said:
That's where I'm at then
Click to expand...
Click to collapse
Same for me (T-Mobile US).
In my case, the phone was updated to Android 9.0, but right after that I sent it to Nokia for repair because of frequent call dropping that was happening with both Android 8.1 and 9.0. I got it back from Nokia with Android 7.1.1 loaded on it (?) and was prompted to update to Android 9.0 and then to the November 2018 security update. Since then I have factory reset the phone twice, but it's not doing IMS registration.
dpward said:
Same for me (T-Mobile US).
Click to expand...
Click to collapse
Me too.
So I switched my sim card from slot one to slot two and lo and behold, both VoLTE and VoWIFI are now working. I wonder why? It sucks that you can't use that AND have a microSD card in, but I don't use that much storage so this will work for now ...
I'm having the same problem with AT&T on the TA-1045. Normally I get VoLTE only, but not showing IMS Registered. Just tried moving SIM from slot 1 to slot 2 with no success.
erdingerchamp66 said:
So I switched my sim card from slot one to slot two and lo and behold, both VoLTE and VoWIFI are now working. I wonder why? It sucks that you can't use that AND have a microSD card in, but I don't use that much storage so this will work for now ...
Click to expand...
Click to collapse
Was looking for VoLTE and found this thread. Yes VoLTE works fine with t-mobile, I tested this week-end while in USA (I'm Canadian). Also to use 2 sim cards AND sdcard you can use an hybrid extender, I am using one and it works perfectly. My Canadian SIM is inside the phone with the SD Card and my other sim (roam mobility, t-mobile,m at&t, etc) is outside and very easy to change.

Change Chinese OP7T Radio Band in Europe

Hello.
I have an OP7T HD 1900 Chinese version. I flashed an EU ROM.
I have a little problem. One of my SIM cards does not have its services that are detect.
In fact all services associated with it / visual messaging / VOLTE VOWIFI etc ... are unavailable.
If I do the key combination * # * # 4636 # * # *
to access the developer mode, I read that it was possible to change the radio band by pressing the 3 small dots in the top right. But the possibility of changing the region of the radio band is not available.
My IMS (SIM card services) is unregistered.
In fact my SIM card and the services associated with it are not detected.
I put my SIM card in my old phone (redmi note 7) and everything works perfectly.
Hence my question is it possible to change the Chinese radio tapes to put it in European version. Or manipulation to force the services to take into account my SIM CARD?
Thank's
Zayatoshi said:
Hello.
I have an OP7T HD 1900 Chinese version. I flashed an EU ROM.
I have a little problem. One of my SIM cards does not have its services that are detect.
In fact all services associated with it / visual messaging / VOLTE VOWIFI etc ... are unavailable.
If I do the key combination * # * # 4636 # * # *
to access the developer mode, I read that it was possible to change the radio band by pressing the 3 small dots in the top right. But the possibility of changing the region of the radio band is not available.
My IMS (SIM card services) is unregistered.
In fact my SIM card and the services associated with it are not detected.
I put my SIM card in my old phone (redmi note 7) and everything works perfectly.
Hence my question is it possible to change the Chinese radio tapes to put it in European version. Or manipulation to force the services to take into account my SIM CARD?
Thank's
Click to expand...
Click to collapse
What operator are you on? I use Bouygues (B&You) and I can't even find the setting for volte or vowifi. Visual messaging works though, through integrated visual messaging app (phone app).
morback said:
What operator are you on? I use Bouygues (B&You) and I can't even find the setting for volte or vowifi. Visual messaging works though, through integrated visual messaging app (phone app).
Click to expand...
Click to collapse
Hello.
I am on SFR network. I can access SMS calls. All the rest nothing works call transfer (unexpected network response ...). With the other operator it works. Only with this operator, the problems mentioned above.
Zayatoshi said:
Hello.
I am on SFR network. I can access SMS calls. All the rest nothing works call transfer (unexpected network response ...). With the other operator it works. Only with this operator, the problems mentioned above.
Click to expand...
Click to collapse
Do you have the proper APNs listed for that network? If they're not listed, you may have to add them manually. You should be able to Google for the APNs for your network.

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