yashsingh1/xdaforums huggingface dataset:
[OnePlus 7 Pro Guides, News, & Discussion] miffymiffy:
5. With your phone connected via USB enter *#801# and check Engineer Mode Toggle switch to ON.

this should open the port up.

Otherwise 'adb shell setprop sys.usb.config diag,serial_cdev,rmnet,adb' should do the same.
[OnePlus 7 Pro Guides, News, & Discussion] budakthegil:
same too not work
[OnePlus 7 Pro Guides, News, & Discussion] zyhamd:
Try put the Efs Tools folder to other disk (D:) instead of C:, then use the cmd command
[OnePlus 7 Pro Guides, News, & Discussion] budakthegil:
ok will try..but it's work for oxygen os 12 ?
[OnePlus 7 Pro Guides, News, & Discussion] tfangkai:
Works on my OP7 pro as well on Oxygen OS 11.0.6.1GM21AA.

Telco: Digi & Maxis (Malaysia)

Thanks a lot.
[OnePlus 7 Pro Guides, News, & Discussion] Galloway:
Just updated to 11.0.7.1.GM21AA and both VoWiFi and VoLTE stuck without needing perform the process listed here. In case anyone was curious or hesitant to update.
[OnePlus 7 Pro Guides, News, & Discussion] zyhamd:
Maybe, but not tested, now working perfect on oos 11.0.7.1, both Volte and VoWifi
[OnePlus 7 Pro Guides, News, & Discussion] Talal Q8:
Hi there, just followed your steps and successfully both VoLTE and VoWIFI working for my Oneplus 7t pro MClaren carrier STC Kuwait, used EU/Vodafone/UK mbn.

during the process noticed one Error line as following:

Error on upload file '/nv/item_files/modem/mmode/qmss_enabled'. EFS error. Code

= 26
[OnePlus 7 Pro Guides, News, & Discussion] rcll:
Thanks for this guide!

It works perfectly for VoLTE. But VoWiFi is not working on Cricket carrier.

*#*#4636#*#* IMS Status shows VoLTE: Available but VoWiFi: Unavailable

Carrier enabled the VoWiFi feature from their end. Immediately an SMS text arrived saying the feature is active on the phone number with instructions to enable WiFi Calling on the device.

It says to go into settings, toggle Wifi Calling switch on, and then enter the "Emergency Address" e911 address to complete the registration.

In OOS11 Global ROM under SIM & Network settings there is only a VoLTE switch and VoWiFi switch. After toggling VoWiFi switch on there is no field to enter an e911 Emergency Address to complete the Wifi Calling registration.

This extra step on the device seems required on Cricket carrier and also AT&T carrier to enable VoWiFi.

Pixel phones have this extra e911 address field built into their stock ROM and seem to allow complete VoWiFi registration with Cricket/AT&T carrier. Are there any ideas for how to do this on OOS11?

Otherwise the Function Switches with Logkit apk are enabled, and the Cricket MBN from the linked volteMBNsPixel4.zip was successfully uploaded with EFS Tools.

This is the MBN being used: volteMBNsPixel4\Pixel\NA\Cricket\pixel_Cricket\mcfg_sw.mbn

Would trying a different MBN help?
[OnePlus 7 Pro Guides, News, & Discussion] shreyas1122:
Got VoLTE Working!

Phone: OnePlus 6 (from India)

OOS Version: 11.1.2.2

Network: Optus Australia

MBN used: mbns-mi9t\aunz\optus\commerci\au\mcfg_sw.mbn

*#80_# codes never worked for me, I used Activity Launcher app to launch [I]EngineerMode.CommonCommands[/I] activity to open the apps..
[OnePlus 7 Pro Guides, News, & Discussion] ipp33:
Hellos guys.

Please i need your help.

I enable volte/vowifi in stock rom 11.0.7.1 and working great. So for me works OP7P_MBNs/EU/VODAFONE/VOLTE/UK. The problem comes when I try to activate on the custom roms. I have tried with ArrowOS, Evo X, crDroid without any success. I have followed the steps.

5.1. If you are on custom ROM you activate the engine mode by entering in adb shell and run the next command:

setprop sys.usb.config diag,serial_cdev,rmnet,adb.

When I give root ( SU ) permission and then the engineer mode command.

All good the problem comes when I do the command

EfsTools.exe efsInfo

I get critical error.

In the same way with all the commands mentioned in the first post.

Please any idea how to fix it?.

I appreciate.
[OnePlus 7 Pro Guides, News, & Discussion] Galloway:
Just updated to 11.0.8.1.GM21AA and lost VoLTE and VoWiFi however running through the procedure again restored functionality.
[OnePlus 7 Pro Guides, News, & Discussion] Adrianoooo:
It doesn't work anymore on Android 12
[OnePlus 7 Pro Guides, News, & Discussion] hubono:
Oh la la

Got it finally to work with Omantel on the oneplus 7 pro.

I have been trying for years now with no luck but today i try again and viola it works.

I used the MBN from Maxis Malaysia attached below.

(Just remove the .zip from the file name)

I will test it for a while and report back any issues.

Cheers you guys
[OnePlus 7 Pro Guides, News, & Discussion] CarlosFraire:
I figured out my mistake. only needed to switch on Engineer Mode Toggle instead of Full port switch.
[OnePlus 7 Pro Guides, News, & Discussion] Jamess27:
how can you do that on a custom ROM? I have a OP6 with Android 12 and I get critical error on efs
[OnePlus 7 Pro Guides, News, & Discussion] serenityx888:
I have an OP3 with custom rom android 11 - - I tried to enable volte and vowifi with PDC Tools but every time I reboot the phone the default profile keeps coming back even if I delete it!! ( I don't know why...) - - I wanted to try it with EfsTools but every time I want to run this command: "EfsTools.exe writeFile -i mcfg_autoselect_by_uim -o / nv / item_files / mcfg / mcfg_autoselect_by_uim" it won't let me, I get the message: "Critical error. Operation not permited" !! Does anyone know what the problem could be?
[OnePlus 7 Pro Guides, News, & Discussion] neohq:
As someone posted before, for Digi - Romania it works "eu/vodafone/volte/uk".

OOS 11 - Last stable release.

First give them a call to activate VoLTE, otherwise you'll end like me trying lots of files without success. I've seen the issue when I tried another SIM which had VoLTE activated.

Thank you for this great thread!
[OnePlus 7 Pro Guides, News, & Discussion] Rowethren:
Has anyone found a MBN that works with 3 Mobile UK? I have tried the one that should be correct but it only activated VoWiFi and VoLTE still doesn't work like it did before OOS11. I have tried a bunch of others as well but any help would be appreciated.
[OnePlus 7 Pro Guides, News, & Discussion] Kiuu:
I activated successfully VoLTE and VoWiFi before with this method, however yesterday i got a new update to version 11.0.9.1 and i can't seem to activate it anymore. Whenever i try to useEfsTools.exe efsInfo i get Critical Error. Operation timed out as a response.

Does anyone know how to fix this?
[OnePlus 7 Pro Guides, News, & Discussion] Nicols0Mart:
Managed to enable VoWiFi with "eu/telefoni/commerci/uk" MBN file, but VoLTE still isn't working. Same as you.

I'm running the Oneplus 7 Pro OOS 11.0.9.1 with Orange Spain sim in it.

Did you manage to find a working MBN to active both?
[OnePlus 7 Pro Guides, News, & Discussion] DON2003:
anyone able to use VoLTE on OOS11.1.2.2?

I have tried with my 6T and able to change profile but after reboot still no VoLTE, is this bec when reboot it return to default Oversea profile? do we need to delete the Oversea profile so it wont return to default when reboot?

planning to get a 7 Pro, is this the same or 7 Pro and newer models has support VoLTE and doesn't needs the complicated process?

btw which should be the correct profile for use in Philippines? needs VoLTE here because a Telco DITO needs VoLTE for its voice calls.

many thanks in advance. may be there is someone from Philippines that has same problem before and able to solve it, pls help
[OnePlus 7 Pro Guides, News, & Discussion] Galloway:
Just updated to 11.0.9.1.GM21AA and lost VoWIFI and VoLTE. Performed steps in original post using Freedom MBN file (Shaw is my Mobile Carrier) and once again have working VoWIFI and VoLTE.
[OnePlus 7 Pro Guides, News, & Discussion] DON2003:
i have OOS11.11.2.2, volte not working even tried many profiles
[OnePlus 7 Pro Guides, News, & Discussion] CarlosVV:
Hi, anyone tried to apply this in a oneplus 9 or 9rt? thanks!
[OnePlus 7 Pro Guides, News, & Discussion] ebademoglu:
Oneplus 7T 11.0.9.1 Türkiye Turkcell için Vodafone Germany Mbn si çalıştı kullanıyorum tşkler.
[OnePlus 7 Pro Guides, News, & Discussion] dearshakya:
Hi team, does anyone has the latest extracted mbn zip files from any xiaomi redmi phones? the latest firmware upgraded one....
[OnePlus 7 Pro Guides, News, & Discussion] gbueik:
Thanks for this guide!

Managed to successfully activate VoLTE on Oneplus 6T Android 11 [Without Root] OxygenOS 11.1.2.2

Country--Carrier--MBNS

France/USA -- Free Mobile/AT&T (roaming)/Ting -- mbns-mi9t\eu\vodafone\volte\uk\mcfg_sw.mbn
[OnePlus 7 Pro Guides, News, & Discussion] dearshakya:
Here are the MBN files recently I am able to extract from modem.img from their own model.

1. OP Nord CE is india variant released on 08-08-2022 and its version is v11.0.18.18.EB13DA.

2. for Xiaomi 11T Pro is a global variant and its miui version is V13.0.6.0.SKDMIXM, A12, released on 21-07-2022.
[OnePlus 7 Pro Guides, News, & Discussion] dearshakya:
MBN file from Oppo F21 Pro CPH2363_11_A.07, May 2022 security Patch.
[OnePlus 7 Pro Guides, News, & Discussion] galapogos01:
@gearboxtech are you able to confirm which efs extract you got the mbn from? I have had no luck with Op7Pro/Pixel 4 Telefonica UK mbns. Thanks!
[OnePlus 7 Pro Guides, News, & Discussion] Koldmotro:
I just can't get it to work with my 7T with Orange / France. I've tried multiple mbns talked about here and the one corresponding to my carrier/location and I have no error message but it just don't work for some reasons.
[OnePlus 7 Pro Guides, News, & Discussion] Davids:
Hello all

I have op7pro with build Oxygen OS 11.0.9.1.GM21BA and after this guide only VOLTE is working , but not Wifi call.

Any ideas ??
[OnePlus 7 Pro Guides, News, & Discussion] intheb0x:
Does anyone have a stock Verizon mbn file from a 5G pixel device? The Verizon mbn file and visible MBM file on the OnePlus 8 pro the first line of code in them is to disable 5G so I'm wondering if I disable or remove those MBM files / overwrite them with a stock Verizon NBN file/stock visible mbn file from a phone that is allowed to use 5G on Verizon's Network like a pixel 5G device, does anyone have those nbns available or know where I can get them from?

Sorry for the typos using voice to text mbn file I meant
[OnePlus 7 Pro Guides, News, & Discussion] Mr Tommy:
In this tutorial, we will show you how to enable VoLTE and VoWiFi on OnePlus devices. Voice over LTE and Voice over WiFi are two of the newest additions to wireless communications.

As of late, I have watched a T20 Live Streaming.I found a site about sports live updates on the off chance that you are keen on sports you can likewise observe effectively live games from this T20 WC Live Streaming site.

These features allow you to route your calls over LTE and WiFi rather than the default carrier network. The benefits for the same are aplenty, with the obvious ones being that you could make these calls without any charges being incurred. Furthermore, the other end doesn’t even need to have this feature enabled on their devices.
[OnePlus 7 Pro Guides, News, & Discussion] live99:
thanks " Pixel\EU\Vodafone\VoLTE\pixel_UK" worked for me too with STC

at first I tried "mea\stc\commerci\sa" but if I received a call from VoWiFi it shows "unknown caller" with no contact number or name

then I saw your suggestion and I tried it then it worked! thanks man
[OnePlus 7 Pro Guides, News, & Discussion] live99:
at first I tried "mea\stc\commerci\sa" but didn't work then I tried "Pixel\EU\Vodafone\VoLTE\pixel_UK" and it worked for me

Country: Saudi Arabia

Carrier: stc

mbn: Pixel\EU\Vodafone\VoLTE\pixel_UK
[OnePlus 7 Pro Guides, News, & Discussion] cybr47:
I can't write the file on SIM slot 2

It show an error

C:\EfsTools>EfsTools.exe writeFile -i mcfg_autoselect_by_uim -o /nv/item_files/mcfg/mcfg_autoselect_by_uim -s 1

EfsTools 0.14.0.14

Copyright (c) JohnBel 2021 (http://johnbel.github.io/)

ERROR(S):

Option 's' is unknown.

-i, --inComputerFilePath Required. Computer file path

-o, --outEfsFilePath Required. Output EFS path

-n, --dontCreate (Default: false) Don't create EFS file if its not exist

-t, --item (Default: false) Create Item file

--help Display this help screen.

--version Display version information.
[OnePlus 7 Pro Guides, News, & Discussion] hougga:
Hi all

i asking for some help

isomething is wrong with me

i am on OP6T latest A11 stock and unrooted. but didn't succed to apply the procedure as a lot of you through this thread.

please if someone could help

Thank you all for any help.
[OnePlus 7 Pro Guides, News, & Discussion] dearshakya:
have anyone tried these steps on new OP 7T 12.1 OS? does it still work??
[OnePlus 7 Pro Guides, News, & Discussion] ryanlow134:
nope, it doesn't work anymore. Was hoping if anyone figured out how it can be done.
[OnePlus 7 Pro Guides, News, & Discussion] mauriziocasciano7:
I am trying to enable VoLTE by loading my carrier's MBN profile (extracted from other devices' firmwares with the same soc Snapdragon 845) with QPST PDC but nothing gets loaded.

My device is a OnePlus 6 running LineageOS 19. The profiles I am trying to load are from Asus Zenfone 5Z, Sony Xperia XZ3 and Xiaomi Mi 8.

Do you know what may be the problem?
[OnePlus 7 Pro Guides, News, & Discussion] dearshakya:
Have anyone tried these methods on LineaseOS??? Does it work??
[OnePlus 7 Pro Guides, News, & Discussion] Galloway:
I could be wrong but I thought with Lineage you needed to flash a magisk module to make VoLTE and VoWIFI work.
[OnePlus 7 Pro Guides, News, & Discussion] harrez:
sucessfully enable VoLTE and VoWIFI

Country : Malaysia

Telco : Umobile + DIGI

MBN : Pixel\EU\Telefonica\Comercial\Pixel_UK
[OnePlus 7 Pro Guides, News, & Discussion] mohdschizo:
Are u using OOS11 or OOS12?
[OnePlus 7 Pro Guides, News, & Discussion] maxsterling:
Have the same issue. May I ask if you are on a11 or 10? I suspect error is on a11, haven't tested A10 since never flashed lower firmware via twrp before.
[OnePlus 7 Pro Guides, News, & Discussion] cybr47:
Yes, i saw the issue on both A11 and A12
[OnePlus 7 Pro Guides, News, & Discussion] maxsterling:
So did you try A10 and if so can you confirm it works flashing sim 2 on it? Thanks again
[OnePlus 7 Pro Guides, News, & Discussion] cybr47:
Sorry I haven't tried it on A10 😅
[OnePlus 7 Pro Guides, News, & Discussion] maxsterling:
Ok I tried A10 and it doesn't work :( Maybe A9 😜
[OnePlus 7 Pro Guides, News, & Discussion] Magicflyy:
Hello

Worked on my OP6T

Android 11

OOS 11.1.2.2

I had some port error so had to activate "Rndis,diag switch" for communication

i used this mbns

eu\orange\commerci\france\

VoWifi and VoLTE are working one SIM1

Nothning on SIM2 but i don't car i'm not using it.

Thanks for the tutorial
[OnePlus 7 Pro Guides, News, & Discussion] MiIiano:
I will explain steps done by me which should work for any oneplus and have last updates :

My expectations : OP rooted + EFS updated for VoLTE&VoWIFI + last update.

Phone: Oneplus 6, 7tPro

WARNING: I did not care about my data, however you can do a full backup just you want to restore later

1. Get OOS 10.3.8 version from internet && Install it.

2. Unlock Bootloader.

3. Get boot image for 10.3.8 from internet or extract it (search on gg)

4. patch via Magisk, go to fastboot and flash it.

5. Get TWRP && flash

6. From TWRP backup EFS and move to a safe place (i.e anywhere outside the phone)

7. Start the phone and get engineer mode activated, *#801# toggle "Rndis, diag swith"

8. Do the magic in PDC (based on your carrier or a compatible one)

9. Reboot and confirm VoLTE&VoWIFI works.

10. Boot to recovery and backup EFS (also outside the phone)

11. Update your phone to any desired version or latest.

12. If you want root again. && flash TWRP and restore the EFS from step 10.

13. Boot and enjoy last updates with working VoLTE&VoWIFI.

Confirmed for Op6 and Op7t Pro.
[OnePlus 7 Pro Guides, News, & Discussion] ldFxl:
Worked for me with Rndis,diag switch instead of Engineer Mode Toggle. VoLTE only on SIM 1 (free mobile), both on sim2 (SFR)

OP6T Stock OOS 11.1.2.2

Country--Carrier--MBNS

France -- Free Mobile/SFR -- mbns-mi9t\eu\vodafone\volte\uk

France -- Free Mobile/SFR -- mbns-mi9t\eu\sfr\commerci\fr
[OnePlus 7 Pro Guides, News, & Discussion] inonosa:
SO efs doesn't get update during oos 11?
[OnePlus 7 Pro Guides, News, & Discussion] MiIiano:
It does, but from OOS11 PDC is quite tricky and hard to connect to EFS.
[OnePlus 7 Pro Guides, News, & Discussion] inonosa:
so by restoring oos10 efs to oos11 ...I guess you saying they are compatible?
[OnePlus 7 Pro Guides, News, & Discussion] MiIiano:
Yes.
[OnePlus 7 Pro Guides, News, & Discussion] BolognaTown:
does this workaround work for oneplus one?
[OnePlus 7 Pro Guides, News, & Discussion] djfunkyt:
omg this worked!

Thank you so much!

Country: Singapore

Carrier: Simba (formerly known as TPG)

MBNS: mbns-mi9t.zip\sea\singtel\commerci\singapor (Singtel, Singapore)

Build: Oxygen OS 11.0.9.1.GM21AA

Model: OnePlus 7 Pro (GM1917)
[OnePlus 7 Pro Guides, News, & Discussion] MiIiano:
It should. But OP One should have no issues with PDC. So in theory should go without this workaround.
[OnePlus 7 Pro Guides, News, & Discussion] lm8lm8:
hello boy

do you have those .mbn files somewhere? I guess they might be added using both QUD and QPST tools? they works for all FR ISP? does it works with qualcomm non-oneplus too?

thank you :)
[OnePlus 7 Pro Guides, News, & Discussion] ldFxl:
Just have a look at this thread to find them.

Regarding you questions, I have no idea.
[OnePlus 7 Pro Guides, News, & Discussion] lm8lm8:
hi,

I tried to do the first page operation on Oneplus 5T.

unfortunately it failed, .mbn missed up to total device functionning

well, with hours, lot of patiency and xda threads research, was able to put back a official image on it, using different tools.

But

it looks like even with that, since the moment I did the first process, wifi/BT/cellular are just unusable, sort of bricked, even if android, now, works back.

does anybody have the same model to help me to bring back original files, using the same process than on the first page?

dont hesitate to PM me :)

thank you vm
[OnePlus 7 Pro Guides, News, & Discussion] lm8lm8:
guys,

regarding oneplus5T, on my own I tried on this phone, is was a nice mess, two days without andro working nor andro with wifi/BT/Cell.

be careful!

Id like to make it working, I guess there is a way with the creator of that tool, but I guess its still complicated.

as a friend told me, "qualcomm is like a black box, moving things for each model with each provider regarding volte, you never know if a file would work the same way on another device, even if it's the same soc"

enjoy:

https://xdaforums.com/t/oneplus-5t-...m-files-looks-corrupted.4573123/post-88389059
[OnePlus 7 Pro Guides, News, & Discussion] BanjoCam:
Just did on a 7t. Followed the steps exactly as written. Used the Telus Commercial file from the Pixel 4 download. Once I rebooted, it kind of broke for a few minutes, then the VOLTE icon appeared and LTE data was working again etc.

THANKS SO MUCH for the guide OP!
[OnePlus 7 Pro Guides, News, & Discussion] inonosa:
same using Telus Commercial, I had VOLTE icon shown up for 1 Sim...No improve signal coverage...guess only plus is call and data at same time?

BUT it stopped working after I put dual sim ....
[OnePlus 7 Pro Guides, News, & Discussion] isetiadi:
I am so very late finding this thread.

It works for me on OnePlus 6T stock unrooted, OOS 11.1.2.2, using "Rndis, diag switch" on Engineering Mode.

The mbn files were taken from Mi11 Ultra (thanks to @dearshakya for sharing the files).

Region - Country/Carrier - MBN:

SIM 1: SEA - Indonesia/XL Axiata - XL, volte not working as the operator said they don't support volte for OP6T

SIM 2: SEA - Indonesia/Telkomsel - Telkomsel. volte is working OK.
[OnePlus 7 Pro Guides, News, & Discussion] fiat01:
I have a problem. I have installed all the required files, but once I run the command it gives me an error regarding the COM ports. I tried changing the setting to a different port each time but nothing. It tells me the COM port for example COM8 does not exist. Anyone have a solution?
[OnePlus 7 Pro Guides, News, & Discussion] L0ND0NB0Y:
what if my carrier not listed in the mbns.zip file provided? is there like a general mbn profile which works for most carriers?
[OnePlus 7 Pro Guides, News, & Discussion] naeem47:
Critical error.value cannot be null

How I fix this .help me
[OnePlus 7 Pro Guides, News, & Discussion] Alexxxx1:
I just wonder, if I made rollback to OOS11 and activate Volte and again upgrade to OOS12, does Volte stay active or not?
[OnePlus 7 Pro Guides, News, & Discussion] mohdschizo:
It wont
[OnePlus 7 Pro Guides, News, & Discussion] sjmik:
Has anyone run into this error?

>EfsTools.exe efsInfo
Use serial port 'COM4'
Critical error. The operation has timed out.
[OnePlus 7 Pro Guides, News, & Discussion] kadopt:
Hello,

Guide worked with my device (for VoLTE, can't say about VoWiFi although carrier says it is supported):

Device: OnePlus 7T Pro HD1913 EU OOS11

Carrier: MEO (Portugal)

MBN file (Pixel4): Pixel\EU\Vodafone\VoLTE\pixel_Spain\

[edit]

Only VoLTE was working so I flashed a different one and now both VoLTE and VoWiFi are available:

MBN file (Pixel4): Pixel\EU\Telefonica\Commercial\pixel_UK\

[/edit]

I wonder if I can make this survive the upgrade to OOS12 and then installing Lineage by doing an EFS backup then doing the upgrades and then restoring the EFS again.

[edit2]

EFS backup restored after installing LineageOS 21 did not enable the VoLTE/VoWiFi but doing the adb shell stuff allowed efs tools to connect to the device and after applying mbn files again it is now working in Lineage OS 21!

Too bad Lineage OS does not have the LTE icons.

[/edit2]

[edit3]

Commands can be sent while LOS rom is running (requires root):

adb shell

su

setprop sys.usb.config diag,adb

flash the MBN files with efs tool

reboot

[/edit3]

Thanks for the tutorial and files.

KadoPT
[OnePlus 7 Pro Guides, News, & Discussion] stale86:
thanks for the answers.
[OnePlus 7 Pro Guides, News, & Discussion] dilruk:
Have you tried deleting the default profile?
[OnePlus 7 Pro Guides, News, & Discussion] stale86:
Since I have option to make a backup, the device is without root
[OnePlus 7 Pro Guides, News, & Discussion] m.omdaa:
I'm trying activate volte on vodafone Egypt with no luck :( :( using india, germany vodafone profile and telefonika uk .... any other suggestions ???
[OnePlus 7 Pro Guides, News, & Discussion] vladvlad12:
Give a try to Pixel/APAC/Airtel/pixel_Commercial
[OnePlus 7 Pro Guides, News, & Discussion] m.omdaa:
thanks mate but it didn't work 😡 cant figure out which mbn to try next..
[OnePlus 7 Pro Guides, News, & Discussion] vladvlad12:
Someone uploaded oneplus 7 pro mbns, you should do like me, try 1 at a time, one should work. There are not so many
[OnePlus 7 Pro Guides, News, & Discussion] m.omdaa:
but I have a 5T wont cause any issues??
[OnePlus 7 Pro Guides, News, & Discussion] vladvlad12:
The worst it happened to me using pixel was not to have any network, then used default back and it was ok
[OnePlus 7 Pro Guides, News, & Discussion] m.omdaa:
So i know for a fact that both india and uk tele is working with vodafone egypt after activate it on my friend op 7t pro but non of them work with my 5T pixel and op7p mbn attached here , any ideas or how can i extract the 5T mbn files to activate it with ??
[OnePlus 7 Pro Guides, News, & Discussion] vladvlad12:
I also gave it a try on one plus 6t but also is not working, idk why :(
[OnePlus 7 Pro Guides, News, & Discussion] m.omdaa:
After some digging I found a way to get 10.0.1 firmware of 5T mbn files and used vodafone India and it works
[OnePlus 7 Pro Guides, News, & Discussion] vladvlad12:
Can you please upload mbns from 5t here? Thanks
[OnePlus 7 Pro Guides, News, & Discussion] m.omdaa:
Here are the original mbn files extracted from OOS 10.0.1 and used to activate VoLTE at

Vodafone Egypt

via Vodafone India profile and also working via Telefonica uk too.
[OnePlus 7 Pro Guides, News, & Discussion] m.omdaa:
and just to know profiles from pixel 4 and 5, op7p didn't work for me and only file extracted from my current rom worked as shown.