yashsingh1/xdaforums huggingface dataset:
[OnePlus 7 Pro Guides, News, & Discussion] vladvlad12:
Can you tell me how you extracted mbns? I wanna do same for 6t
[OnePlus 7 Pro Guides, News, & Discussion] m.omdaa:
Do you have root??
[OnePlus 7 Pro Guides, News, & Discussion] m.omdaa:
using any root explorer navigate to vendor/firmware_mnt/image/modem_pr/mcfg/configs/mcfg_sw/generic

and you will find original oos mbn files
[OnePlus 7 Pro Guides, News, & Discussion] vladvlad12:
Thanks. Will try one of this day. Will try using an emulator then install oos for 6t, cause my friend has no root so I will do it in emulator. Thanks for info !
[OnePlus 7 Pro Guides, News, & Discussion] tommy426:
Comfirm it is working on OB3. Thanx!
[OnePlus 7 Pro Guides, News, & Discussion] vladvlad12:
Trying to disable VoLTE but keep VoWiFi, but no success. Disabled VoLTE from *#800# but it keep working. I have no on/off switch in settings. Anyone have an idea of how can I do that?
[OnePlus 7 Pro Guides, News, & Discussion] tommy426:
Try this

Releases · edgd1er/voenabler

voenabler. Contribute to edgd1er/voenabler development by creating an account on GitHub.

github.com
[OnePlus 7 Pro Guides, News, & Discussion] tommy426:
Working on OB4.

Thanx
[OnePlus 7 Pro Guides, News, & Discussion] PriPhaze:
what does this suppose to do?

Just like using the logkit?
[OnePlus 7 Pro Guides, News, & Discussion] PriPhaze:
wow nice thanks , working on my OP7Pro android 11 stable. Finally xd

I was abit mad losing VoLTE after update.

Im from Mexico and i needed ROW_Commercial

so it was common/row/commerci/mcfg_sw.mbn

that's the one i used, i didnt try any from pixel since i knew ROW was what i needed so thanks to to person on the first page that uplodaded OP7Pro MBNs
[OnePlus 7 Pro Guides, News, & Discussion] folvera6:
Working like a charm with OnePlus 7T (HD1900 with Oxygen 11 stable) I used Telia Sweden profile for the Mexican carrier Altan with the MVNO Diri. I think should works with the rest of the Altan's MVNO as well.
[OnePlus 7 Pro Guides, News, & Discussion] tommy426:
This is Magisk module that activates the toggle of VoLte and VoWifi in setting.
[OnePlus 7 Pro Guides, News, & Discussion] Kaydin:
Hello! I'm thinking of doing this. Anyone have experience with Orange Romania and Digi Mobil Romania? Is it working fine?

Thank you!
[OnePlus 7 Pro Guides, News, & Discussion] macross7ra:
Yes! This is really works for my OnePlus 7 Pro with Android 11

I am from Hong Kong and my carrier is CSL

The mcfg_sw.mbn file I am using is under

sea\hkt\commerci\hk
[OnePlus 7 Pro Guides, News, & Discussion] xXxTJxXx:
Hi there!

on step 6 on CMD this error is showed (I tried to carry on but got the same error):

C:\Users\xxxtj\Downloads\OnePlus OO11\EfsTools-0.10-modded-1.2-win32>EfsTools.exe efsInfo
Use serial port 'COM7'
Critical error. An unexpected network error occurred.

one more question:

how do I do the following (as maybe this is the issue):

" simply change port from Auto to the COM port of the phone (for example COM13)"

you will need to modify EfsTools.exe.config

Update:

I figured out my mistake. i needed to switch on Engineer Mode Toggle instead of Full port switch. the only thing left is to figure out mbn to my carrier (which is stc Saudi Arabia). any suggestions?

on PDC it used to work using Commercial-DT-VOLTE. can anyone share this mbn?

Update 2:

HOORAY! I can now confirm the both VOLTE & VOWIFI are working!

Country: Saudi Arabia

Carrier: stc

mbn: Pixel\EU\Vodafone\VoLTE\pixel_UK

in attachment (unzip =>mea=>Copy the mcfg_sw.mbn file to the same directory as the EfsTools.exe and continue as above)
[OnePlus 7 Pro Guides, News, & Discussion] Some Human:
How to activate for SIM card 2? I have 2 card by 2 different provider and both support VoLTE and VoWiFI.

Thanks in advance.

Second command is for slot 2. Working for provider upc.ch (Swisscom network) DT-VoLTE (works from any package) but only VoLTE, not VoWiFi. On second slot Aldi-Mobile (Sunrise) VoLTE works too but VoWiFi not. Used TDC Denmark from Oneplus 7 Pro.

Update: H3G_Denmark_Commercial Profile works for VoLTE and VoWiFi for Aldi-Mobile (Sunrise).

No one works for VoWiFi on upc.ch (Swisscom network).

Any help would be appreciated.
[OnePlus 7 Pro Guides, News, & Discussion] derrickhjk:
Any video tutorials on this method.... Last night I upgarde my OP7Tpro to OOS11 via OTA..... I am now desperately trying to get back Volte.... Thank you....
[OnePlus 7 Pro Guides, News, & Discussion] trawel:
I have a question. How to return to default configuration (unrooted phone) in case there are some issues (no network or something)?
[OnePlus 7 Pro Guides, News, & Discussion] Some Human:
You don't need video tutorial, because is very easy. Just follow first post.
[OnePlus 7 Pro Guides, News, & Discussion] miniupiniu:
Does this method work on windows 10 64 bit computer? I am stuck on point 4 and how can I not connect the phone to the computer.

I have a message:

C:\Users\Magdalena>C:\Users\Magdalena\Desktop\EfsTools-0.10-modded-1.2-win32

'C:\Users\Magdalena\Desktop\EfsTools-0.10-modded-1.2-win32' is not recognized as an internal or external command,

operable program or batch file.

I changed ports, tried to connect automatically and I can't.

HELP.
[OnePlus 7 Pro Guides, News, & Discussion] xXxTJxXx:
In CMD type:

cd C:\Users\Magdalena\Desktop\EfsTools-0.10-modded-1.2-win32
[OnePlus 7 Pro Guides, News, & Discussion] vladvlad12:
You can use mbns from the OnePlus 7 pro, and try to use one from your country. That should do it, if no try to use \common\default\sm8150.p\default
[OnePlus 7 Pro Guides, News, & Discussion] Egramf:
I'm lost, Where are you guys getting the mcfg_sw.mbn from?

I'm in Japan and updated my Oneplus 7 pro to Android 11 stock and lost my Volte.

Try to use PDC again but it doesn't work. I followed all the steps in this thread and I'm stuck on where to create or find mcfg_sw.mbn for my carrier Rakuten Mobile. PDC ( VoLTE-CU ) is that helps.
[OnePlus 7 Pro Guides, News, & Discussion] vladvlad12:
You must download OnePlus 7 pro mbns: https://xdaforums.com/attachments/op7p_mbns-zip.5212939/ here you can find them, then try and find one mcfg_sw.mbn that works for you. Maybe \china\cu\commerci\volte ?
[OnePlus 7 Pro Guides, News, & Discussion] Egramf:
vladvlad12, You are the man!! It works - Japan - Rakuten Mobile -

china\cu\commerci\volte\mcfg_sw.mbn​
[OnePlus 7 Pro Guides, News, & Discussion] dearshakya:
Hi, have you rooted your phone? My phone (same model with yours) is not rooted. Does it require to root?
[OnePlus 7 Pro Guides, News, & Discussion] dearshakya:
Thanks man.. now my phone (Oneplus 7T HD1900 global OOS 11 stable) is running with volte and vowifi enabled without root. I searched for many forums and tried many methods including root also, multiple times i had to use MSM tool to restore also, but root was not best for me, so i was looking to enable it without root. finally, i am able to enable it. Thanks man, you are life saver. ...
[OnePlus 7 Pro Guides, News, & Discussion] indezah:
Thank you this worked. Used the Indian file
[OnePlus 7 Pro Guides, News, & Discussion] mastertm1:
Hi, I went to activate the volte and wowifi to digi romania but doesn't work so I'm off the plane.

Adica am reusit activarea cu metoda ta, dar in mod avion nu merge apelarea. VoWifi nu functioneaza. VladVlad12, am folosit ca si tine mcfg de la H3G. Vreo solutie ?
[OnePlus 7 Pro Guides, News, & Discussion] vladvlad12:
Incearca sa folosesti altul, e posibil ca pentru digi sa fie altul.

Cineva zicea Pixel's 4 EU\Telefonica\Commercial\UK
[OnePlus 7 Pro Guides, News, & Discussion] Messerschmitt262:
Ma poti ajuta te rog?

EfsTools.exe efsInfo

Critical error. Value cannot be null.

Parameter name: PortName
[OnePlus 7 Pro Guides, News, & Discussion] vladvlad12:
Ai activat de la *#801# Engineer mode toggle? Incercat sa activezi și da comanda după
[OnePlus 7 Pro Guides, News, & Discussion] Messerschmitt262:
Da. Engineer mode toggle, usb debug on, USB file transfer connection.

Cred ca am probleme cu qualcom driver. Am dezinstalat, si am reinstalat Qualcomm QPST Diag port x64. Dar tot aceasi eroare.

Cand am activate Engineer mode toggle, in device manager nu am qualcomm, si eroare under "other devices"
[OnePlus 7 Pro Guides, News, & Discussion] vladvlad12:
Da, pare o problema de driver
[OnePlus 7 Pro Guides, News, & Discussion] Messerschmitt262:
Ai o solutie sa reinstalez driverul corect?
[OnePlus 7 Pro Guides, News, & Discussion] vladvlad12:
QPST Tool v2.7.474 for Windows

Download the official QPST Tool v2.7.474, which enables you to flash the stock firmware on your Qualcomm smartphones and tablets.

qpsttool.com
[OnePlus 7 Pro Guides, News, & Discussion] Messerschmitt262:
Aceas problema :(

In Device Manager tot arata asta
[OnePlus 7 Pro Guides, News, & Discussion] Lightq8:
Thank you sir!

it worked like a charm.

OnePlus 7T Pro McLaren edition .

Network: Kuwait - Zain.

Profile used: apac\vodafone\commerci\india

I used to use PDC to enable VoLTE , but after getting OOS 11 stable update the phone is not detected under PDC .

keep in mind it only worked for VoLTE for me, I could not get VoWiFi to work before and I did not care . if you have better profile for Zain Kuwait network , let me know!

again thank you for your solution and steps .
[OnePlus 7 Pro Guides, News, & Discussion] dearshakya:
Hi is it from the latest OOS 11 (OP7 Pro)??
[OnePlus 7 Pro Guides, News, & Discussion] ciprianxl:
Salut Vlad,

Thanks for this tutorial. I have activated VoWifi and VoLTE on my OP 7T Pro. But...

Using Pixel/APAC/Airtel/pixel_Commercial/ with Vodafone Romania. When i am latched to 4G and using VoLTE, the GPS is not working anymore. If i lock it to 3G, the GPS works back. Can you test also?

What other configs you recommend to test?

Cheers

LE: After trying several configs, i have found one that works with OP7T Plus Vodafone Romania.

\mbns-mi9t\eu\vodafone\commerci\ireland

WoWiFi, VoLTE & GPS works alltogether.

Good luck!
[OnePlus 7 Pro Guides, News, & Discussion] freemanrw:
Hi,

Thanks for the tuto, vladvlad12

It helped me a great deal.

I managed to activate VoLTE and VoWIFI for both SIM cards (DIGI and Vodafone Romania) on my OP7 Pro.

I used the MBNS file from the Pixel4 archive (profile Vodafone Germany : EU > Vodafone > VoLTE > pixel_Germany)

VoLTE and VoWifi are working great!

Thanks again!
[OnePlus 7 Pro Guides, News, & Discussion] Bobberto:
Thanks for the extraction.

Does anyone know which one of these MBN is the default overseas profile that you use for roaming?
[OnePlus 7 Pro Guides, News, & Discussion] Galloway:
I have read the entire thread, stuck at getting EFS.exe efsinfo, not connecting.

Is root required for this? I am not rooted.
[OnePlus 7 Pro Guides, News, & Discussion] vladvlad12:
No root required.
[OnePlus 7 Pro Guides, News, & Discussion] Galloway:
Thank you. Not sure why I am unable to get a connection with efstools.exe. Engineering mode enabled, powershell as admin. I can connect to ADB with no issues. But no connection using efstools.exe efsinfo.

I'll have to try again another day and see unless there are any suggestions people have had with not getting a connection.
[OnePlus 7 Pro Guides, News, & Discussion] Maru89:
Thank you so much for this! Got volte working on my OP7Pro after the android 11 update and PDC method no longer worked.

Japan - Rakuten - KDDI MBN from pixel 4 link
[OnePlus 7 Pro Guides, News, & Discussion] Galloway:
I figured out my issue, stupid on my part. Case sensitivity is import.

Unfortunately after doing everything and using the Pixel 4 MBN files for Telus, no love. Still goes to 3g/H+ for voice calls after a reboot.

Any other suggestions? Tried the Telefonica one that I used before but didn't seem to work on that either.
[OnePlus 7 Pro Guides, News, & Discussion] njmata:
Works like a charm for OnePlus 7T. THANKS!!!

I'm in México and I used the European Telia Sweden mbn
[OnePlus 7 Pro Guides, News, & Discussion] RanCohen:
It worked for me !!! Thank you
[OnePlus 7 Pro Guides, News, & Discussion] Ezekiel3:
Hello, I have a whole new menu with *#800# since the official release of OOS 11, I can't find the option to switch VOLTE On now.

Do you have the same issue, is there a workaround ?
[OnePlus 7 Pro Guides, News, & Discussion] vladvlad12:
Installed that? https://androidfilehost.com/?fid=8889791610682871077
[OnePlus 7 Pro Guides, News, & Discussion] Ezekiel3:
That did the trick, thank you. I was trying with a version from APK mirror with no luck.
[OnePlus 7 Pro Guides, News, & Discussion] BelleTot21:
DITO Telecommunity, Vodafone APAC, Philippines
[OnePlus 7 Pro Guides, News, & Discussion] muhsin_Sultan:
Hi, after each update VoLTE goes away, like the days of using PDC

Is it intended or am I doing something wrong?

Digi (Malaysia) - Used Telefonica UK mbn
[OnePlus 7 Pro Guides, News, & Discussion] vladvlad12:
After every update your mbn goes to default.
[OnePlus 7 Pro Guides, News, & Discussion] isc33:
Big like for you!!! Va multumesc mult pentru acest topic il asteptam de cand s-a facut acest update pe oxygen 11. Telefonul meu este OnePlus 7 (Digi Romania) si a functionat cu aceasta metoda! I use UK_VoLTE_Vodafone (size: 105400, version: 0x0801040F, ID: 5C81F8E0D...) (mbn\eu\vodafone\volte\uk) this works perfect for me WoLTE & VoWiFi 🧐
[OnePlus 7 Pro Guides, News, & Discussion] raykong95:
Having some trouble after the OTA OOS 11 update on OnePlus 7 Pro...

Both *#800# and *#801# will not work. They do work before on OOS 10. I used to be able to re-enable VOLTE using PDC after every OTA update.

Now after I input *#800# and *#801#, the codes on the dial pad would be cleared but nothing will show like before...

Tried to re-install every version of Oneplus Toolkit and Engineering Mode, restarted after every install, still no hope of getting them back.

My OnePlus 7 Pro is from China and I flashed OOS Day 1 when I got it.

Thanks in advance if someone knows how to fix it.

Edit: Fixed by using the Google Dial app instead of the stock dialer... and thank you to @macross7ra, Hong Kong CSL enabled VOLTE on OOS 11 successfully!!!
[OnePlus 7 Pro Guides, News, & Discussion] muhsin_Sultan:
trying this on OnePlus 8 Pro gives this, any idea why?
[OnePlus 7 Pro Guides, News, & Discussion] kali65:
Works great on both my 1+ 7T pro

mbns\eu\telefoni\commerci\uk\ for Unifi Mobile

mbns\sea\telenor for DiGi
[OnePlus 7 Pro Guides, News, & Discussion] P0r5che613:
It works for me, Oneplus 7 pro (GM1917, bootloader unlocked) running OOS 11 with MagiskSU, and my carrier is HKT/csl. Not only the VoLTE works, but also the roaming issuse is solved.

Use the "Volte_OEM_Lab" item.
[OnePlus 7 Pro Guides, News, & Discussion] redh0k:
Thank you @vladvlad12 @HomerSp @jimmy123322 , worked successfully on my 1+ 7T (HD1905) OOS 11, non rooted.

I am located in Mexico and my carrier is Altan (Newww) I used pixel mbn (Pixel\EU\Telefonica\Commercial\pixel_UK)

Worked again after updating to OSS 11.0.1.1.HD65AA ✔
[OnePlus 7 Pro Guides, News, & Discussion] unelx:
Thank you @vladvlad12, worked successfully on my 1+ 7T (HD1900) OOS 11, non rooted.

Region: APAC

Carrier: DITO Philippines

Country: Philippines

I used Pixel\APAC\Vodafone\Commercial\pixel_IN and it worked. VoLTE activated.
[OnePlus 7 Pro Guides, News, & Discussion] SKYEFXTS:
I am a newbie

when I type this code " EfsTools.exe efsInfo " it says

Critical error. Value cannot be null.

Parameter name: PortName

can someone help me to fix it ?
[OnePlus 7 Pro Guides, News, & Discussion] Galloway:
Ok, gave this another shot, getting the following error with several of the mbn files?

Any suggestions? I'm on Telus Canada and have used teh Mi9t Teuls Commercial, the Pixel 4 commercial, Telefonica_UK and several others. No luck with VoLTE so far.
[OnePlus 7 Pro Guides, News, & Discussion] mastertm1:
Hello,

I had this mistake too

Try to select volte from *#800# reboot

And redo the activation steps

To OnePlus 7, android 11.0.1.1 it”s work.
[OnePlus 7 Pro Guides, News, & Discussion] Galloway:
VoLTE was already enabled with *#800# are you saying yours was not and required it to be?
[OnePlus 7 Pro Guides, News, & Discussion] k117117:
Hello guys.

VoLTE and VoWifi has been disabled after updating OOS from 11.0.0.2 HD65AA to 11.0.1.1 HD65AA.

Then I tried reenabling VoLTE and VoWifi using EfsTools, but executing `EfsTools.exe efsInfo` fails.

it returns result like below (even with admin command prompt).

Does anyone know solutions to this problem, or have same situation?

Here's my conditions.

Device : One Plus 7T HD1900

Oxygen OS : 11.0.1.1 HD65AA

Note : I've had had my phone VoLTE enabled when OOS 11.0.0.2 with EfsTools before.
[OnePlus 7 Pro Guides, News, & Discussion] k117117:
**Sorry, I've duplicated posts**
[OnePlus 7 Pro Guides, News, & Discussion] 4TR0M:
Hi, Today I update to 11.0.1.1.GM21AA and as normal I lose VOLTE on my 1+ 7 pro, just to confirm that this method is working properly, but if I try from POWER SHELL not works for me, just works on CMD probably is my machine

Any other has an issue when doing the steps on POWER SHELL?
[OnePlus 7 Pro Guides, News, & Discussion] k117117:
Both powershell and CMD doesn't work for me.

powershell returns the same result just as #104.
[OnePlus 7 Pro Guides, News, & Discussion] k117117:
I've just solved the issue by myself.

this time, this step does not work for me, but turning Full-port switch ON works and my op7t got VoLTE enabled again.

if having the same issue, try turning Full-port switch ON.

Thanks guys.
[OnePlus 7 Pro Guides, News, & Discussion] warque:
This worked for me. Installed on oos11 then flashed a custom rom. Volte still working Vowifi also is working. Thank you very much.
[OnePlus 7 Pro Guides, News, & Discussion] Donut_Man:
Has anyone got any luck finding a MBN for Telenet in Belgium? I must've tried 30 different ones already and none worked
[OnePlus 7 Pro Guides, News, & Discussion] warque:
Are you sure it is no longer working? I have tested that even after you install a custom rom, volte still works. I think efs tools is permanent, at least in my case. So yours should still work. You just need to install oneplus logkit once again and enable volte and vowifi switch. No need to do everything all over again. Try it. :)
[OnePlus 7 Pro Guides, News, & Discussion] warque:
Missed this post. Glad yours is now working.
[OnePlus 7 Pro Guides, News, & Discussion] Donut_Man:
UPDATE: Apparently Telenet only activates VoLTE and VoWIFI on a per SIM basis. The thing you have to do is the following:

1. Ask their support to activate VoLTE and VoWIFI for your number, they'll happily do this for you.

2. I don't know if this has made a difference or not, but when they activated I had the Swisscom MBN from the MI9T pack installed. Try it for yourself with the default to see if it works.
[OnePlus 7 Pro Guides, News, & Discussion] bhuwan.shrestha:
For Nepal use this file to enable volte and volte wifi.
[OnePlus 7 Pro Guides, News, & Discussion] warque:
I have learned the hard way it is not permanent. :(

But it still works. I just did the steps over again.
[OnePlus 7 Pro Guides, News, & Discussion] ht54:
Confirmed working on both sim as shown in screenshot.

Phone model: HD1900

OOS: 11.0.1.1.HD65AA

Country: Malaysia

Telco: Unifi mobile (both sim)

File used: Pixel\EU\Telefonica\Commercial\pixel_UK
[OnePlus 7 Pro Guides, News, & Discussion] ht54:
Interestingly the command

EfsTools.exe writeFile -i mcfg_autoselect_by_uim -o /nv/item_files/mcfg/mcfg_autoselect_by_uim -s 1

does not work with JohnBel's EfsTools, which HomerSp fork from.
[OnePlus 7 Pro Guides, News, & Discussion] stan79:
I had been using Pixel MBN and managed to find the exact one for my telco. But somehow, after using for couple of days, I will lose 4G till I turn on and off flight mode or reboot my phone to get back LTE. I tried out the Mi9T MBN too and it is also the same.

Previously was using the Telefonica_UK before upgrading to OOS11, it was working fine. Does anyone has the latest Oneplus 7 Pro MBN based on OOS11.0.11? I will want to try out Telefonica_UK again to see if I will lose 4G again after a few days till reboot.
[OnePlus 7 Pro Guides, News, & Discussion] 97hugo777:
Tried this on my Hong Kong Birdie sim with CMHK profile it works but somehow the smartone profile does not work on the Smartone network im currently using, is there a newer profile or is there anything to do with other files? i used the same method and it never showed any error, thank you.
[OnePlus 7 Pro Guides, News, & Discussion] Gruber008:
Does this actually work? I'm willing to try it on my 7T Pro but I don't see anyone else mentioning it in the thread, everyone else is using the OP's method.
[OnePlus 7 Pro Guides, News, & Discussion] knightlim:
The method works for OnePlus 7 Pro 5G (Sprint) on EU firmware. Instead of using Engineer Mode Toggle, turn on Full-port switch. I'm from Malaysia on DiGi telco and I'm using the mbn file from here: Pixel\EU\Telefonica\Commercial\pixel_UK. Hope this helps.
[OnePlus 7 Pro Guides, News, & Discussion] aNGERY:
US, T Mobile, Open Beta 3.

I love you.
[OnePlus 7 Pro Guides, News, & Discussion] nodiaque:
anyone got it working with rogers on op7p?
[OnePlus 7 Pro Guides, News, & Discussion] alvinma:
Have you got it work in the end?

I have been trying to get telus volte work on my op7pro os11, PDC doesn't work, but I flashed mbn successfully using engineering mode. However volte won't work.
[OnePlus 7 Pro Guides, News, & Discussion] Galloway:
I have not been able to successfully get VoLTE working on Telus yet. IMS shows not registered when using *#*#4636#*#* and I know IMS was registered when I was on os10 with working VoLTE. I did swap my SIM into a spare iPhone I had access to and verified VoLTE is working properly on that device.

I have limited time to experiment as this is also my work phone. I left the Pixel 4 Telus MBN installed in the hopes it would work after some time but has not. I tired both Engineering Mode and Full Port Switch with no success.

I love this phone but feel so deflated that our hands are tied for the newer technologies because of it not being carrier supported. If anyone has any other suggestions I am totally game to try. Rooting is not really an option because of it being a work phone (personally owned) and it will get flagged in InTune as being rooted.
[OnePlus 7 Pro Guides, News, & Discussion] Galloway:
Finally got this to work!!!! Except not with Telus. Nothing I tried worked. I just switched carriers to Shaw Mobile/Freedom and used the Pixel4 MBN for Freedom. Worked like a charm. Have VoWifi and VoLTE working properly now.
[OnePlus 7 Pro Guides, News, & Discussion] RanCohen:
can someone upload video ?
[OnePlus 7 Pro Guides, News, & Discussion] ibrahimyuksel:
Thank you so much. I tried it for Turkcell operator Oneplus 7T in Turkey. The result was successful.
[OnePlus 7 Pro Guides, News, & Discussion] Alex261099:
Hi, i'm facing some issues.

After following this guide with my oneplus 6, my phone automatically conncets to the 2g network if available and ignores the 4G network.

Any suggestion?
[OnePlus 7 Pro Guides, News, & Discussion] dearshakya:
Hi, this mbn from which profile or phone model?
[OnePlus 7 Pro Guides, News, & Discussion] Galloway:
I just did the 11.0.2.1 update and of course lost VoLTE and VoWiFi. Redid the steps above and have VoLTE back but no VoWifI. I did re-register the number with Shaw/Freedom and also verified that the toggles for VoWiFi are all enabled. Anyone else experience this?
[OnePlus 7 Pro Guides, News, & Discussion] kw0n2k:
I had the same issue when I updated to the latest patch (7t pro.).

when in the engineer mode *#801#, instead of 'Full-Port Switch' use 'Engineer mode toggle', ensure USB debug mode is enabled first.

Got VoLTE and VoWIFI working again.
[OnePlus 7 Pro Guides, News, & Discussion] Galloway:
If I use Full-port Switch I get Critical Error. I don't get that with Engineer Mode.

1st one is Full-port Switch, second one is Engineer Mode and is successful. Engineer mode was what I used all along. Everything completes properly as it did previously with no errors. VoLTE is working, just not VoWIFI.

Also to add, using the QPST Configuration tool I do see that the Freedom Mobile mbn has been applied.
[OnePlus 7 Pro Guides, News, & Discussion] kw0n2k:
Is Developer mode enabled with USB debug mode enabled?
[OnePlus 7 Pro Guides, News, & Discussion] Galloway:
Yes it is.