Question Can I upgrade LE2125 from single to dual SIM? - OnePlus 9 Pro

I have the USA version of Oneplus 9 pro LE2125. This came with single SIM tray but I bought dual SIM tray from ebay. Can I upgrade the software to unlock the 2nd SIM? I read in some forums that we can but I am a complete newbee so please help...
I have done root/adb...etc before but it's been a while...so I am comfortable.

i was ask this oneplus support for you, you cant use dual sim just with sim apparatus. Because your phone is hardware single sim.

The hardware itself supports it as long as you purchased a dual SIM tray. However, there's no easy way to accomplish it from a software side at this point. A couple of people have said it works in certain custom ROMs, though others can't reproduce with the same ROMs. Some people have accomplished it using a complex and somewhat risky process of flashing modems and other steps that are unclear (search the forum and proceed at your own risk). Most of us are holding out hope for a more reliable and transparent method in OOS12 or custom ROM.

I've never messed with trying dual sim.. But on open beta 2 this is in oneplus logkit settings(*#*#4636#*#*). It can be toggled on and off. I don't have dual tray to see if it will work or not. Dsds(dual sim dual standby)
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I've put a dual sim tray in mine and after I upgraded to OS12 open Beta it shows 2 sims. I haven't tried 2 sims simultaneously, but I did try it on both sides.

On OnePlus 8 pro for Android 10 was just one sim, and then on 11 dual, although OnePlus promised the change a head of time. It would be nice if this would be the case on this device.

I'm curious if anyone has flashed the modem from beta 2 on an Android 11 ROM and got dual SIM functionality

Okay I tried flashing it and it made my phone fail to boot, luckily I was able to reflash the old modem and it's working again

Shooter7889 said:
I've never messed with trying dual sim.. But on open beta 2 this is in oneplus logkit settings(*#*#4636#*#*). It can be toggled on and off. I don't have dual tray to see if it will work or not. Dsds(dual sim dual standby)
Click to expand...
Click to collapse
Did you have to do anything special to enable logkit? I'm on OB3 and that keypad code doesn't do anything for me.

terlynn4 said:
Did you have to do anything special to enable logkit? I'm on OB3 and that keypad code doesn't do anything for me.
Click to expand...
Click to collapse
You have to download "Force LTE Online (4G/5G)" from the play store.

rmendez011 said:
You have to download "Force LTE Online (4G/5G)" from the play store.
Click to expand...
Click to collapse
Interesting, mine doesn't show "Enable DSDS" where yours does (and the keypad code still doesn't work). I have a dual SIM tray and a second SIM, but OB3 still just shows one.

terlynn4 said:
Interesting, mine doesn't show "Enable DSDS" where yours does (and the keypad code still doesn't work). I have a dual SIM tray and a second SIM, but OB3 still just shows one.
Click to expand...
Click to collapse
Yea I had the Enable DSDS in Open Beta 2, but in Open Beta 3 it's gone. It might be back in Open Beta 4.
Also I'm a different person from the earlier post, I'm only letting you know where to get the *#*#4636#*#*, you open the app I told you to install, then press Method 2 (Android 11).

terlynn4 said:
Interesting, mine doesn't show "Enable DSDS" where yours does (and the keypad code still doesn't work). I have a dual SIM tray and a second SIM, but OB3 still just shows one.
Click to expand...
Click to collapse
You wanna know why they removed the Enable DSDS in that weird LE2125.11.C36 update? That was because it was the stable update, they released the Stable update and it's the same build number, makes sense why they removed it.

Related

(Q)Unlocking SIM slot

Hello.
I bouht this phone from local Telecom Slovakia yesterday. but my second slot is locked. Im able to use this slot like SD card only. How can i unlock it ? Flash new rom or is there any way how to do it ??
Thank you for fast reply
Miko671995 said:
Hello.
I bouht this phone from local Telecom Slovakia yesterday. but my second slot is locked. Im able to use this slot like SD card only. How can i unlock it ? Flash new rom or is there any way how to do it ??
Thank you for fast reply
Click to expand...
Click to collapse
If you want 2 SIM cards, your box and system info should have 2 different IMEI numbers, otherwise is single SIM.
Galaxo60 said:
If you want 2 SIM cards, your box and system info should have 2 different IMEI numbers, otherwise is single SIM.
Click to expand...
Click to collapse
So there is no way how to "activate" the second SIM slot?
Because on P8 I found an article that it was possible using another firmware to change branden SINGLE SIM to DUAL SIM...as if all the models have same harware and only the firmware decides if it is SINGLE or DUAL SIM.
But I do not know if it is the same with G8 (I have also TMobile AT branded G8 - and it is single SIM. All I could do was install some other official firmware, but NOT that one marked as DUAL SIM When I tried to update DUAL SIM Firmware, I always get "Software install failed" right from the start)
milanko1976 said:
So there is no way how to "activate" the second SIM slot?
Because on P8 I found an article that it was possible using another firmware to change branden SINGLE SIM to DUAL SIM...as if all the models have same harware and only the firmware decides if it is SINGLE or DUAL SIM.
But I do not know if it is the same with G8 (I have also TMobile AT branded G8 - and it is single SIM. All I could do was install some other official firmware, but NOT that one marked as DUAL SIM When I tried to update DUAL SIM Firmware, I always get "Software install failed" right from the start)
Click to expand...
Click to collapse
There is no way to make it work as far as I know, and many people have tried without success, because they always get the error you get when making the update to the firmware.
:cyclops:
In device info i can see Model :RIO-L01. that means it is 2 sim version. I will do backup before i will do somethink with my phone.
Edit: When i make call on *#06# i see only one imai number
Miko671995 said:
In device info i can see Model :RIO-L01. that means it is 2 sim version. I will do backup before i will do somethink with my phone.
Edit: When i make call on *#06# i see only one imai number
Click to expand...
Click to collapse
Is the same model I have and is only single sim.
:/ hmmm is there any way how to check if mine version is dual sim ? I read somwhere that Version witth 3gb ram are only dual sim.
Miko671995 said:
:/ hmmm is there any way how to check if mine version is dual sim ? I read somwhere that Version witth 3gb ram are only dual sim.
Click to expand...
Click to collapse
That's not true, I have the 3GB version and is single SIM.
This is a way you can verify dual sim version, and is the same I have told you before:
http://www.htcmania.com/showpost.php?p=21658111&postcount=1
only one IMAI code :/ thank you all for your replies
If I have only one IMEI, but I have dual card management app running and ro.dual.sim.phone - true (by default) in build.prop, is possible to have dual sim in future, with proper rom&some trick (like writing second IMEI somewhere).
My G8 ROM single sim:
Build number RIO-L01C432B130.
Custom version CUSTC432D005.
Thank you!
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i'm looking to do this in the GX8 too.
I have several P8 SINGLE SIM Lite supposedly only had an IMEI in the terminal loading the international ROM was activated the second SIM SLOT and become DUAL SIM mobile and work seamlessly with two cards.
asakopak said:
i'm looking to do this in the GX8 too.
I have several P8 SINGLE SIM Lite supposedly only had an IMEI in the terminal loading the international ROM was activated the second SIM SLOT and become DUAL SIM mobile and work seamlessly with two cards.
Click to expand...
Click to collapse
Sorry guy!
Did you found a way to make its happen?
I know that its possible but I tried on Gx8 without success.
Thanks a lot.
Nop, sorry dude
Enviado desde mi VFD 900 mediante Tapatalk

Bought in USA, can do something to use in EU?

Hey,
I bought an LG G7 ThinQ (LMG710TM) in the USA, and i does not connect to the LTE/4G mobile data network here in Hungary. Since it's a T-mobile version i thought if i could unlock it, it may work (i can use my Telekom SIM since the beggining to call/send msg), but i can't get the unlock bin trough LG site, because it says it's an LMG710TMP version which is unlockable, but the phone itself says it just te TM version withouth the P on the end.
Anyways should I even bother to try to unlock it, because i didn't really find any infos which frequencies are supported by my own device, so it maybe just blocked by the software or not.
Thanks!!
Mr.Tree said:
Hey,
I bought an LG G7 ThinQ (LMG710TM) in the USA, and i does not connect to the LTE/4G mobile data network here in Hungary. Since it's a T-mobile version i thought if i could unlock it, it may work (i can use my Telekom SIM since the beggining to call/send msg), but i can't get the unlock bin trough LG site, because it says it's an LMG710TMP version which is unlockable, but the phone itself says it just te TM version withouth the P on the end.
Anyways should I even bother to try to unlock it, because i didn't really find any infos which frequencies are supported by my own device, so it maybe just blocked by the software or not.
Thanks!!
Click to expand...
Click to collapse
It's not rooted right?
Enter the service menu and check the bands. If it says "SUCCESS" then that band is supported. If it says "FAIL" it's not.
Bands 2, 4 and 12 are the ones usually used with GSM LTE in America.
Falkentyne said:
It's not rooted right?
Enter the service menu and check the bands. If it says "SUCCESS" then that band is supported. If it says "FAIL" it's not.
Bands 2, 4 and 12 are the ones usually used with GSM LTE in America.
Click to expand...
Click to collapse
Thank you for your help!
And yes, it's not rooted.
I checked the service menu, the listed(pic1,pic2) bands are all working, at least it said "SUCCESS" when i clicked on them, and in Hungary they use band 3,7 and 20.
I set it on 3, tried to reinsert simcard and restart phone, and airplane mode etc,etc little tricks to get it work, but still no mobile data.
The weird thing i found is the LTE Carrier Aggregation(pic3,pic4). It says what is says on the picture and i can't change it, because it tells me i need to restart my phone. I did it but no changes, so it just stuck at those options. I suspect the problem is there for some reasons that i don't know.
On pic5/pic6 those are some infos about the LTE stuff, sometimes it said Not Supported Mode at the Mode Pref, sometimes it said Automatic. Sadly i don't really know what that means, maybe it will provide some infos to you.
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Mr.Tree said:
Thank you for your help!
And yes, it's not rooted.
I checked the service menu, the listed(pic1,pic2) bands are all working, at least it said "SUCCESS" when i clicked on them, and in Hungary they use band 3,7 and 20.
I set it on 3, tried to reinsert simcard and restart phone, and airplane mode etc,etc little tricks to get it work, but still no mobile data.
The weird thing i found is the LTE Carrier Aggregation(pic3,pic4). It says what is says on the picture and i can't change it, because it tells me i need to restart my phone. I did it but no changes, so it just stuck at those options. I suspect the problem is there for some reasons that i don't know.
On pic5/pic6 those are some infos about the LTE stuff, sometimes it said Not Supported Mode at the Mode Pref, sometimes it said Automatic. Sadly i don't really know what that means, maybe it will provide some infos to you.
Click to expand...
Click to collapse
Did you contact the mobile provider and ask them to add your phone's IMEI to their service?
In USA, some people who bought the LG unlocked international phones did not have mobile data until they called the carrier and had them register the IMEI number.
You'll most likely need to setup your APN manually. Go to settings-network and add APN info for your provider there!
bdasmith said:
You'll most likely need to setup your APN manually. Go to settings-network and add APN info for your provider there!
Click to expand...
Click to collapse
I set up the APN and it work now. Thank you very much for your help, it's kinda unbelieavable that it was this easy!
Mr.Tree said:
I set up the APN and it work now. Thank you very much for your help, it's kinda unbelieavable that it was this easy!
Click to expand...
Click to collapse
Your welcome. Glad to help ?

Theoretically convert a single sim a50 to a dual sim a50

Do you want to convert your single sim phone into a dual sim phone. then this guide should do it.
For some reason the single sim samsung boards actually have 2 sim slots. For example the a7 2018 single sim board has 2 sim slots
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Here is the a50 motherboard with the same thing
How to check without opening up the phone.
What i find with all the phones with unused 2nd sim card slots is that they always leave a blank space where the 2nd sim card would be
Here is an a7 2018 sim tray for a single sim phone to prove my point
So my theory is either to cut a hole for the 2nd sim into the tray and tape the sim in or to buy a sim tray for a dual sim phone.
Also on my single sim a7 2018 ( my a50 is dual sim) there are activities called Sim cards or names that would suggest that it has dual sim capability in the settings apk
So if someone would test this out that would be awesome
I think the reason they do this is so that they don't have to manufacture 2 boards for a device instead they can just manufacture 1 board for all the versions of the phone
it's not that simple I think, even if the second sim slot is there, the single sim variant still only have one imei (why would samsung listed two imeis on a single sim registered phone), the sim may shown as no service if your theory is right.
Second sim slot is most likely disabled in the firmware of the radio. Also, like mentioned above it needs a second IMEI number which it will not have.
Try to flash a dual SIM ROM and some guides are there on how to copy IMEI number from SIM1 TO SIM2. Or you can use an old IMEI # from someother phone.
Any luck with trying a dual-sim rom on an A50? I've got a single sim A50 which I'd love to convert if it's just limited in firmware and software.
zit501 said:
Any luck with trying a dual-sim rom on an A50? I've got a single sim A50 which I'd love to convert if it's just limited in firmware and software.
Click to expand...
Click to collapse
sadly I cannot test this out as my A50 is dual sim but i could try my A7 2018 or J5 2017 as it has the same thing too.
Maybe with this file it can be done...
https://combinefile.com/index.php?a=downloads&b=file&id=42101
Is anyone tested this?
Converted A7 2018 to Dual sim solved
I already solved my A750F come with 1 single SIM and I setting for Dual SIM with EFT BOX and now is working 2 SIM Cards.
Is it possible to convert dual sim a50 to single sim only? If it is, how. I only use one sim and but in my country there are only dual sim a50 for sale.
Fire_GT said:
Is it possible to convert dual sim a50 to single sim only? If it is, how. I only use one sim and but in my country there are only dual sim a50 for sale.
Click to expand...
Click to collapse
Why would you want to do that... Its nonsense. If you have DS and want SS just put one Sim card [emoji1787]. Even more slot for SD is separated. So, there is no need for such a thing.
Sent from my ELE-L29 using Tapatalk
RamosChale said:
I already solved my A750F come with 1 single SIM and I setting for Dual SIM with EFT BOX and now is working 2 SIM Cards.
Click to expand...
Click to collapse
Please give more details of this process? Did you just toggle an option or did you need a new firmware? I have not used EFT BOX before.
zit501 said:
Please give more details of this process? Did you just toggle an option or did you need a new firmware? I have not used EFT BOX before.
Click to expand...
Click to collapse
No need new firmware to enable this, With EFT Box have an option named "Setting SIM for Dual", make sure you device is rooted to enable this after that you will have new option on Setting for SIM Manager and new IMEI "0000...." *#06#. Sorry for may Bad English
Obs: I buy new slot for Dual SIM
Sell mobile --> buy new dual SIM mobile. Zero Headaches.
i,m searching for N device to test it, its not like this just root or via eft convert to dual,
now sam have latest security and its need some modifications coz even after convert to dual you,re not able to make calls
i need rom devs for this process,
It is posibble to convert single sim to dual sim in galaxy A12 (SM-127M)?. I know my phone have 2 slots but it only have 1 imei, i also have noticed that i had installed herramientas de SIM 2 ap. If someone can help me please i would appreciate it, maybe seeing ads on your website so you can earn some money.
Pepinoxio29 said:
It is posibble to convert single sim to dual sim in galaxy A12 (SM-127M)?. I know my phone have 2 slots but it only have 1 imei, i also have noticed that i had installed herramientas de SIM 2 ap. If someone can help me please i would appreciate it, maybe seeing ads on your website so you can earn some money.
View attachment 5583077View attachment 5583079
Click to expand...
Click to collapse
inbox so can try

Help! My SM-A705MN seems hard locked to Smart Telecommunications.

Good day.
I'm from the Philippines. I bought an A70 and I wanted to use my old sim, which is Globe, but whenever I insert my Globe sim, or there are no sim in the sim tray, this always pops up and i can't use my phone unless I use my Smart sim.
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Whenever I insert both my Smart and Globe sim, I could use the phone but I can not turn on the mobile data of my Globe sim cause it's grayed out.
And this also also pops up in the notifications and I can't swipe it off.
I tried downgrading the firmware to A705MNXXU3ASG6 before.
Then I updated to A705MNXXU3ASJ1. (Both stock firmwares I flashed are XTC.)
I did the *#272*IMEI# and chose XTC even though my phone is already in XTC.
I also tried SAMTool(Says Unlock Successful)
The phone technician at the mall i went to used SamKey(Failed)
I even used '01234567' and '00000000', the unlock codes SAMTool says to use, on #7465625*638*#
But the 'Smart Communications Inc.' still pops up whenever there is no sim or I insert my Globe sim.
My OEM Unlock is hidden as well. Whenever I go to download mode, it says on the screen, 'OEM LOCK : ON (L)'.
Tried this : https://www.xda-developers.com/fix-missing-oem-unlock-samsung-galaxy-s9-samsung-galaxy-s8-samsung-galaxy-note-8/
And the solution here: https://forum.xda-developers.com/galaxy-a70/help/oem-unlock-168-hours-t3994553
But OEM Unlock is still hidden.
I hope someone can help me with this. Would really appreciate it.
@BK☑️ Sir, could I ask for your help on this. I don't know what else to do.
Sad for you bro. Did you try asking for help from samsung ph? Seems a bit off to have 2 sim slots but have them locked to one company. Adik talaga smart!
Easy Computer said:
Sad for you bro. Did you try asking for help from samsung ph? Seems a bit off to have 2 sim slots but have them locked to one company. Adik talaga smart!
Click to expand...
Click to collapse
Haven't tried that yet. Salamat. Sa greenhills ko kasi to nabili. Mukang within the contract period ba tong phone. First time ko rin kasi bumili ng phone in years, di ko tuloy natanong kung openline ba or hindi. Engot lang. Haha.
it look like your smart garbage sim is showing this kind of 'bloatware' thing , did you could use your globe sim before on a70? if yes , then the updates in philippines for MN variants force you to use their smart garbage and prevent you from using your globe sim, or just your globe seen been desactivated by your globe service provider, if you root and install another firmware like lineage , it should work, if even on lineage os or any other custom firmware it still show that smart garbage , then it's the sim itself who won't allow you to use any other sim than their own, what angry me the most is that they say thanks for using it while they force you to use their garbage, ill help you to root it , ill also make sure that you are actually able to activate your OEM unlock , im sure your sim prevent you from unlocking your device.
BK said:
it look like your smart garbage sim is showing this kind of 'bloatware' thing , did you could use your globe sim before on a70? if yes , then the updates in philippines for MN variants force you to use their smart garbage and prevent you from using your globe sim, or just your globe seen been desactivated by your globe service provider, if you root and install another firmware like lineage , it should work, if even on lineage os or any other custom firmware it still show that smart garbage , then it's the sim itself who won't allow you to use any other sim than their own, what angry me the most is that they say thanks for using it while they force you to use their garbage, ill help you to root it , ill also make sure that you are actually able to activate your OEM unlock , im sure your sim prevent you from unlocking your device.
Click to expand...
Click to collapse
Thank you for replying sir. Really appreciate it.
Yes, I can still use my Globe sim on other devices. I'm currently using it on my SM-T535. It seems the seller sold me the A70 while it is still under contract with Smart. Sadly we only have 2 major service providers here in the Philippines thanks to the garbage system we currently have. Hopefully, we change to Federal-Parliamentary with no FDI Restrictions soon. Anyway, I haven't tried rooting yet cause I haven't I still have no experience with it. This will be my first if ever.
Should I follw this: https://forum.xda-developers.com/galaxy-a70/how-to/galaxy-a70-firmware-list-variants-t3957239
Or do you have other recommended threads I should follow?
Btw, if ever I successfully rooted my device with a custom firmware, could I still unroot it and return to an official firmware without the annoying 'Smart Communications Inc.' popping up ever again?
Hgxy said:
Thank you for replying sir. Really appreciate it.
Yes, I can still use my Globe sim on other devices. I'm currently using it on my SM-T535. It seems the seller sold me the A70 while it is still under contract with Smart. Sadly we only have 2 major service providers here in the Philippines thanks to the garbage system we currently have. Hopefully, we change to Federal-Parliamentary with no FDI Restrictions soon. Anyway, I haven't tried rooting yet cause I haven't I still have no experience with it. This will be my first if ever.
Should I follw this: https://forum.xda-developers.com/galaxy-a70/how-to/galaxy-a70-firmware-list-variants-t3957239
Or do you have other recommended threads I should follow?
Btw, if ever I successfully rooted my device with a custom firmware, could I still unroot it and return to an official firmware without the annoying 'Smart Communications Inc.' popping up ever again?
Click to expand...
Click to collapse
flash this firmware https://samfrew.com/download/Galaxy__A70__/lax5/TCE/A705MNXXS4ATA1/A705MNOWA4ASK1/ with Odin , if the smart thing stay you will have to follow root tutorial
BK said:
flash this firmware https://samfrew.com/download/Galaxy__A70__/lax5/TCE/A705MNXXS4ATA1/A705MNOWA4ASK1/ with Odin , if the smart thing stay you will have to follow root tutorial
Click to expand...
Click to collapse
Will try this sir. I'll update you asap. Thank you again!
BK said:
flash this firmware https://samfrew.com/download/Galaxy__A70__/lax5/TCE/A705MNXXS4ATA1/A705MNOWA4ASK1/ with Odin , if the smart thing stay you will have to follow root tutorial
Click to expand...
Click to collapse
Good day sir. I just flashed the TCE version but the Smart thingy still pops up if there are no sim or I use my Globe sim.
What should I do next sir?
Could I do this next even if my OEM Unlock is hidden? https://forum.xda-developers.com/galaxy-a70/how-to/galaxy-a70-firmware-list-variants-t3957239
Or do i have to do something else?

How To Guide Activate VOLTE and VOWIFI on unsupported OnePlus 9 Pro

Hi,
I've red a lot of subjects on this forum, about people not able to activate VOLTE and VOWIFI.
I had the same issue with my so aged OnePlus 8 Pro.
Here is what solved the problem for me, and many of us :
[GUIDE] Enable VoLTE & VoWiFi on all devices NO ROOT.
This is a quick guide on how to enable VoLTE and VoWIFI on every OnePlus 8 or 8 Pro device. This method involves downgrading the OnePlus LogKit APK to the OnePlus 7 version. I recommend you to backup the existing LogKit APK using ADB on a Or...
forum.xda-developers.com
It works without root
Enjoy
This just enable VoLTE and VoWiFi switch, but if not supported by provider still no VoLTE and VoWiFi.
Some Human said:
This just enable VoLTE and VoWiFi switch, but if not supported by provider still no VoLTE and VoWiFi.
Click to expand...
Click to collapse
Where I live, I cannot get/use VoWIFI anyhow, since I do NOT buy my phones through Verizon. I think that is very slimy of them to not let people use their own phones. :|
misteurz said:
Hi,
I've red a lot of subjects on this forum, about people not able to activate VOLTE and VOWIFI.
I had the same issue with my so aged OnePlus 8 Pro.
Here is what solved the problem for me, and many of us :
[GUIDE] Enable VoLTE & VoWiFi on all devices NO ROOT.
This is a quick guide on how to enable VoLTE and VoWIFI on every OnePlus 8 or 8 Pro device. This method involves downgrading the OnePlus LogKit APK to the OnePlus 7 version. I recommend you to backup the existing LogKit APK using ADB on a Or...
forum.xda-developers.com
It works without root
Enjoy
Click to expand...
Click to collapse
What provider are you using? I'm going to see if the vowifi will work on verizon but I won't hold my breath. It didn't on oneplus 8 pro. However 5g works here.
I'm on Orange France
hm i cannot get VoLTE to work. I did all the steps from the tutorial but i just have VoWifi. is there another way to get VoLTE?
cannot install the logkit, says : help?
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xsoft7 said:
cannot install the logkit, says : help?View attachment 5515353
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Did you ever figure this out? I'm having the same issue in trying to downgrade the LogKit apk. Even trying to uninstall the current LogKit version after backing up, doesn't allow me, saying error "failed to locate the apk file."
nope..
Pardon my lack of understanding here, but why is there a need to do anything special for VoLTE, other than have the carrier (Koodo here) enable it on one's mobile plan?
That's what I did here, and then just checked the "VoLTE" setting under "Mobile network" --> SIM, and it works. LE2125.
???
mlord said:
Pardon my lack of understanding here, but why is there a need to do anything special for VoLTE, other than have the carrier (Koodo here) enable it on one's mobile plan?
That's what I did here, and then just checked the "VoLTE" setting under "Mobile network" --> SIM, and it works. LE2125.
???
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Click to collapse
Hmm... I called Rogers about activating 5G on my device and the tech support team was completely useless. Responses from it's impossible because it's not from our product list (moron... my Razr 5g (had 2 of them) all worked just by plugging a sim card, my Oneplus 8T 5G worked by just plugging in a sim card), to it will never work. For my Oneplus 9 pro I modified the policy restrictions and it worked.
I'm wondering what changes when calling in to "activate" Volte?
VoLTE is LTE, not 5G. There's a related but differently named thing for Vo-5G, which I forget the exact term for.

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