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G955FD - Dual SIM - VoLTE for both SIMs in Canada?

Hi All
I flashed the Canada multi-csc on my G955FD hoping to get LTE while on the phone (VoLTE)
However when I make a call with Sim #1 (TELUS) I have no LTE.
When making a call with Sim #2 (Bell), I do have LTE.
I have my Calls set to SIM 1, i have Texts set to SIM 1, and Mobile Data to SIM 2
When i reboot the phone a popup appears that asks which number i want to use as my primary for apps, and i always choose my TELUS number. I assume this is asking for things such as Whatsapp and how it maps to your cell number?
Anyone know what's wrong?
Is it possible that the Multi CSC is not adding TELUS's details properly?
Or can i simply only have VoLTE with one SIM and not both?
EDIT: Through testing i confirmed that whichever SIM is set to Data will be the only SIM that you can make VoLTE calls on.
Here is a thread in the S9 forums discussing the same limitation
https://forum.xda-developers.com/galaxy-s9-plus/help/s9-duos-exynos-dual-sim-dual-volte-t3756817

Bump

You are correct; only the SIM set as Data will be able to operate in VoLTE mode.
Samsung has added Dual LTE to S9/S9+ variants with recent update though, so both SIM can operate in VoLTE mode simultaneously (irrespective of Data SIM selection). You can only hope that Samsung brings the same feature to S8/S8+ too; it depends upon hw support.

S8/S8+ hardware is not capable of Dual VoLTE. So it will never arrive.

The note 5 pro from Xiaomi supports dhak volte after a software update a d I know that because I did it on a 6gb 64 gb model a few hours ago. I think the s8,s8+ and note 8 surely have better hardware than Xiaomi note 5 pro right?

No 5g icon

I have a strange issue, the phone is connected to 5g network but the icon is still 4g, can anyone confirm this? I am not sure if is a theme issue or something else

Looks like your network doesn't send UpperLayerIndicator so that is reason why 5G icon doesn't appear to status bar. Maybe 5G is not officially opened?

I do have the same issue and I was able to contact level-3 support of my operator. Can you provide more information about that? @lovers74 : where is this screen coming from? @olkitu : Thanks for this information "UpperLayerIndicator " seems to be the keyword!

Airwave said:
I do have the same issue and I was able to contact level-3 support of my operator. Can you provide more information about that? @lovers74 : where is this screen coming from? @olkitu : Thanks for this information "UpperLayerIndicator " seems to be the keyword!
Click to expand...
Click to collapse
I used an app called Quickshortcutmaker, and searched for 5g.

olkitu said:
Looks like your network doesn't send UpperLayerIndicator so that is reason why 5G icon doesn't appear to status bar. Maybe 5G is not officially opened?
Click to expand...
Click to collapse
It is officially opened, and working correctly and on other devices such as Huawei or Samsung I can see the icon.

Airwave said:
I do have the same issue and I was able to contact level-3 support of my operator. Can you provide more information about that? @lovers74 : where is this screen coming from? @olkitu : Thanks for this information "UpperLayerIndicator " seems to be the keyword!
Click to expand...
Click to collapse
UpperLayerIndicator is in SIB2 signaling message to tell UE (example phone) this LTE tower have 5G support. Otherwise UE shows 4G icon.
Some UE like Huawei and Samsung shows 5G icon when connected to NR even network doesn't have UpperLayerIndicator in SIB2.
And most of devices show 5G icon without 5G NR... "Fake 5G"

It's N78 5G? On a S20 Ultra you see 5G but it's greyed out, because it's only 5G in downlink.

Linuxkek said:
It's N78 5G? On a S20 Ultra you see 5G but it's greyed out, because it's only 5G in downlink.
Click to expand...
Click to collapse
Samsung shows 5G when network send UpperLayerIndicator message and then change 5G icon color when connected to 5G layer. You can use example CellMapper app to see if 5G State Connected or not.
n78 is not only downlink, can't be uplink too. That depends network configuration.

VoLTE not working

Hi, I had Poco F1 before with working VoLTE, so I know that my carrier and current Sim card is supporting it. All I had to do on the F1 was typing in that code *#*#86583#*#* and activating the new volte setting.
I tried that with the X3 but it's not working. Whenever I receive/make a phone call my connection will switch from 4G to 3G.
Is there a workaround or is it a hardware limitation? I could imagine because the X3 just has an entry level SOC that the modem has some artificial restrictions to differentiate from the flagship SOC (845/865).

Did you get a volte carrier check disabled message after dialling that?
For me both volte and vowifi are working fine

Yes I got that. Are you telling the phone your real location or do I have to chose India or china? I remember with my Poco F1 I had to chose India to get features like call recording...btw I'm in Australia.

Changing regions
Anyone know if I do a factory reset and change to a different region like Europe will that make the phone operate on different Verizon bands possibly allowing me to get service? Just a thought ?

ankerede said:
Yes I got that. Are you telling the phone your real location or do I have to chose India or china? I remember with my Poco F1 I had to chose India to get features like call recording...btw I'm in Australia.
Click to expand...
Click to collapse
If you got the VoLTE was disabled message after entering the code, go to SIM settings and there will show the option to activate VoLTE. If not appears, try to enter the code again and check the SIM settings.
---------- Post added at 05:38 AM ---------- Previous post was at 05:30 AM ----------
Glock45 said:
Anyone know if I do a factory reset and change to a different region like Europe will that make the phone operate on different Verizon bands possibly allowing me to get service? Just a thought ?
Click to expand...
Click to collapse
I think using different bands it's more about regional ROMs construction (Global, India, Europe etc) than changing region in ROM settings. Alternative, you can flash a different regional ROM using MiFlash and see if it helps with your problem.

After entering that code I get the switch, to turn on volte, but that doesn't change anything.

ankerede said:
After entering that code I get the switch, to turn on volte, but that doesn't change anything.
Click to expand...
Click to collapse
Can't you see the specific VoLTE symbol near mobile signal in the upper right corner of the screen? If you can't see it, you can try to make a phone call and see if the google dialer shows it's a VoLTE call (or check the dialer history calls if you use Xiaomi dialer....you'll see there if it was a VoLTE call or not).

Same here with my Poco x3 NFC global I am on Vodafone UK my carrier support volte and vofi but I can't enable it , I have no settings . What I found when I flash custom ROMs the volte works , the sound in voice calls is super crisp and I got the icon always there vote on sim and vofi on WiFi . I need an option or a menu or a trick to show that option in stock ROM to enable it .
I remember back in the days when I had OnePlus I had to go in the ingineer menu to tick on a toggle " enable volte" and "enable vofi"
And later on the OnePlus 7t pro I had to install an apk to force that toggle so I can enable it .

On my Mi Mix 2s it shows volte when enabled. This one no. Poco needs to fix this before a number of users get dumped for lack of volte.

Aburel18 said:
Same here with my Poco x3 NFC global I am on Vodafone UK my carrier support volte and vofi but I can't enable it , I have no settings . What I found when I flash custom ROMs the volte works , the sound in voice calls is super crisp and I got the icon always there vote on sim and vofi on WiFi . I need an option or a menu or a trick to show that option in stock ROM to enable it .
I remember back in the days when I had OnePlus I had to go in the ingineer menu to tick on a toggle " enable volte" and "enable vofi"
And later on the OnePlus 7t pro I had to install an apk to force that toggle so I can enable it .
Click to expand...
Click to collapse
Did you try activate it using this codes in Dialer? VoLTE: *#*#86583#*#* and VoWIFI: *#*#869434#*#*. After that go to your SIM settings and you'll get the option to activate VoLTE and VoWiFi.

I have tried those and I left it on enabled both of them . Still not working

Alin45 said:
If you got the VoLTE was disabled message after entering the code, go to SIM settings and there will show the option to activate VoLTE. If not appears, try to enter the code again and check the SIM settings.
---------- Post added at 05:38 AM ---------- Previous post was at 05:30 AM ----------
I think using different bands it's more about regional ROMs construction (Global, India, Europe etc) than changing region in ROM settings. Alternative, you can flash a different regional ROM using MiFlash and see if it helps with your problem.
Click to expand...
Click to collapse
Thanks only problem is w/o being able to get cell service I can't unlock, any way to flash different rom not being unlocked?

Glock45 said:
Thanks only problem is w/o being able to get cell service I can't unlock, any way to flash different rom not being unlocked?
Click to expand...
Click to collapse
If you have an locked bootloader I'm not aware about a method to flash another regional ROM. I had read that many Poco X3 users have problems getting mobile data connection with Verizon (especially in USA).

Hello anyone has managed to operate the volte on both sim cards simultaneously on his POCO X3? thank you

Alin45 said:
If you have an locked bootloader I'm not aware about a method to flash another regional ROM. I had read that many Poco X3 users have problems getting mobile data connection with Verizon (especially in USA).
Click to expand...
Click to collapse
I was able to get 4g working good signal 4-5 bars long enough to link it to my MI account try to unlock it this Sunday is weird though the signal will stay strong then disconnect then come back and can't add it into any networks via their web site after I unlock it I'll take it to the diff stores try get them to activate it I'll let ya know how it turns out ?

I have the same problem with bouygue telecom, Volte is activated but doesn't work.

Volte also doesnt Work in Germany for reseller Sim cards of German Telekom and Telefonica ...

Alin45 said:
If you have an locked bootloader I'm not aware about a method to flash another regional ROM. I had read that many Poco X3 users have problems getting mobile data connection with Verizon (especially in USA).
Click to expand...
Click to collapse
Got my bootloader unlocked I'll try flash another regional rom

Same here in Italy, no volte, it switch ti 3g. With my previous 8t all was fine

I am using the stock room and used the dial codes got the settings but everytime I tried to make a call it wouldn't work I went to setting all specs and tap internal storage 5 times then choose the sim you are using then you have to turn the top switch off then back on. This is how I got mine working I also have extended my storage by using root explorer and cut everything under sd card and move to storage.

[Q] Best Snapdragon variant for UK

Hey all!
I know there was a lot of discussion about this in the early days of the note 20 ultra but I'm trying to find a straight forward answer to a simple question.
I'm based in the United Kingdom and have the Exynos variant of the note 20 ultra. If I was to switch to a Snapdragon international version which is best suited and had the following (if any)?
- dual SIM
- 5g (working with UK frequencies)
- unlocked bootloader
Thanks in advance for any help provided!

Until today I would have steered you away from the N9860 TGY from Hong Kong, but we now have the magic solution to unveiling 5G service (hopefully) for all networks with a quick dabble in the service menu.. Certainly the previously absent EE 5G is now present and correct. 3 and Vodafone were already supported. Not sure about O2.
It is dual SIM, if you don't mind losing the SD slot.
No idea about the bootloader. I'm not messing with it.
Firmware updates used to lag behind badly, but we have caught up finally, for now at least.
I haven't got any reason to complain now that it's fully functional and with big cost savings over the official UK stock.

I've no complaints over the Snapdragon N20 Ultra 5G I imported from Hong Kong via WondaMobile.
Signal is excellent and so is the optimisation over the Exynos version.
I don't use Samsung Pay so can't say if it works or not but Google Pay works as it should.
I'm on o2 Payg and they don't yet offer 5G to my type of contract and I also use Vodafone Payg but 5G isn't available where I am unfortunately.
Mine is dual sim 256gb version which was over £100 less than the UK version I sent back to Samsung UK.
I prefer not to root etc.
tdodd can you elaborate in regards what to do in the Service Menu to get 5G working. I've seen people use sim slot 2 that works for them or they change csc

You need to install the Google phone dialer and make it default.
Then copy/paste this string into the dialer....
*#*#276633683782#*#*
This will open the service menu, but not in the right place.
Press [5] RF TEST
Press [3] ANT TEST SETTING
Use the three dot menu at top right and press Back
The steps above will reveal the full set of menus.
Press [2] UE SETTING & INFO
Press [1] SETTING
Press [1] PROTOCOL
Press [4] GCF
Press [3] REMOVE ONLY NR WHITELIST
Use the three dot menu to press END
Reboot the phone.
This should allow 5G to function on all UK networks subject to contract and coverage restrictions.
There are some possible other optimisations through the service menu, but not required for unlocking 5G. See this thread from post 81. Earlier posts are a bit out of date.
[Help][Guide][Philippines]SM-N9860 TGY/BRI/CHC Snapdragon Users|5G Reception Fix|Updated Guide for OneUI4.0
Hi! I created this thread for SM-N9860 HK/TW/CH variant users from Philippines. The GOAL is to make our units work with our local carriers': 4G Carrier Aggregation (4G CA) (i.e. 4G+/LTE-A). 5G network and resolve any carrier related issues...
forum.xda-developers.com
Once you've made the changes and rebooted you can return to the Samsung dialer if you prefer. The Google dialer is just needed to get into the service menu.

tdodd said:
You need to install the Google phone dialer and make it default.
Then copy/paste this string into the dialer....
*#*#276633683782#*#*
This will open the service menu, but not in the right place.
Press [5] RF TEST
Press [3] ANT TEST SETTING
Use the three dot menu at top right and press Back
The steps above will reveal the full set of menus.
Press [2] UE SETTING & INFO
Press [1] SETTING
Press [1] PROTOCOL
Press [4] GCF
Press [3] REMOVE ONLY NR WHITELIST
Use the three dot menu to press END
Reboot the phone.
This should allow 5G to function on all UK networks subject to contract and coverage restrictions.
There are some possible other optimisations through the service menu, but not required for unlocking 5G. See this thread from post 81. Earlier posts are a bit out of date.
[Help][Guide][Philippines]SM-N9860 TGY/BRI/CHC Snapdragon Users|5G Reception Fix|Updated Guide for OneUI4.0
Hi! I created this thread for SM-N9860 HK/TW/CH variant users from Philippines. The GOAL is to make our units work with our local carriers': 4G Carrier Aggregation (4G CA) (i.e. 4G+/LTE-A). 5G network and resolve any carrier related issues...
forum.xda-developers.com
Once you've made the changes and rebooted you can return to the Samsung dialer if you prefer. The Google dialer is just needed to get into the service menu.
Click to expand...
Click to collapse
Thank you for the walk through
Seems quite a slog to get faster download speeds for large files.
Think I'll stay with 4G and 4G + for the time being

5G on LG V50

Hello,
I have a LG V50 5G - version LM-V500EM, Android 11, SW version V30b-EEA-XX. I guess it's the Korean version - it has on the back the 5G logo and the pins for the second display at the bottom.
Also, I have a 5G subscription on Orange carrier, in Romania.
So I have a few questions about the LG V50 :
1. Should there be a 5G option in the Settings menu -> Internet and network -> Mobile network ? I'm asking this because on different phones, even LG ones, there is a option for 5G. An example is LG Velvet 5G, which has 5G auto option in the Mobile network menu. Or because the phone (LG V50 5G) supports only the 5G NR N78 band, there is no option. In contrast, because the LG Velvet supports multiple 5G bands, it has the 5G option ?
2. How do I know when the phone connects to a 5G mobile network ? Or to any type of mobile network ? I only see the mobile signal strength in the top right corner, but no additional information. On other type of phones, even LG ones, you see 5G, 4G, 3G, VoLTE etc. Is there a way to enable, to be shown like this ? I know I can see the type of connection if I go to settings, but I wanna see it on the main screen.
3. This is related to the 2nd question - When the phone connects to a 5G network, does the logo on the back do something ? Like intermittent flash with red color ? I see that when I receive a notification, the 5G logo flashes in blue color
I attached some pictures, to better understand what I'm saying. Unfortunately, the menu is in Romanian and so are the pictures but you get the point.

Hi, in Poland on my V500N I have like this:

Thanks for the reply, guess there is a SW problem with mine.
Still, I managed to activate the 5G using the secret menu code *#546368#*500# and the following path :
Field Test -> Modem Settings -> RAT Selection and selected from there the option that contains 5G NSA. The only dilemma was that there were 2 options that contained the naming and surprisingly both of them worked for me (I observed no difference between them).
By the way, so you have the 5G logo on the back ? If yes, when it's connected to a 5G network, does it stay lighted in red color ?

I have this logo, but my operator does not support 5G for now.
I am in Orange, but in the Orange sub-brand for young people - NJU and so far there is no 5G for this brand. Besides, I don't care too much.
If the phone connects to 5G - you will have the sign 5G instead of LTE on top bar of screen.
As far as I know, the logo on the back will have some color - red or orange ...

I have the 5G sign in the top right corner but I also wanted to see it in red on the back, as in the launch video. I thought that it's somewhat "fake positive" if it doesn't also light red when the 5G appears on the screen.
Thanks so much for the response and have a nice day !