yashsingh1/xdaforums huggingface dataset:
[OnePlus 8 Pro Questions & Answers] Mattycee:
Yeah it is playing up big time. I may reset it and see if that makes a difference.

One thing I was hoping you were able to clarify for me is when you do the final step on getting VoWifi & VoLTE to work:-

EfsTools.exe uploadDirectory -i mcfg_sw.mbn -o / -v

Do you copy as above, or edit the upload directory to match where the mcfg_sw.bin file is? I have just copied it as above and it run through it, but errored if I edited it to show the actual folder.
[OnePlus 8 Pro Questions & Answers] happiboi:
I literally copy and paste the command as is:

EfsTools.exe uploadDirectory -i mcfg_sw.mbn -o / -v

just wanted to confirm you place the .mbn file in the directory right not a .bin file?
[OnePlus 8 Pro Questions & Answers] Mattycee:
Yeah sorry that was a typo, it is mcfg_sw.mbn not .bin.

I am going to factory reset the phone now and see if that makes a difference to the VoWifi/LTE and RCS as well.
[OnePlus 8 Pro Questions & Answers] happiboi:
Did it work for you?
[OnePlus 8 Pro Questions & Answers] Mattycee:
Nope, the VoLTE/Wifi are working ok now after a reboot, but still cannot get RCS to work. I'm not sure what's going on.
[OnePlus 8 Pro Questions & Answers] happiboi:
maybe try this all over again? https://www.androidpolice.com/2019/...e-rcs-in-the-messages-app-yourself-right-now/
[OnePlus 8 Pro Questions & Answers] Mattycee:
Is that how you got yours to work, or did it just connect like it is supposed to? I cannot follow the instructions listed because the activity launcher doesn't show the RCS flags as listed, they must have updated the app or Google did something in the backend.
[OnePlus 8 Pro Questions & Answers] happiboi:
i did follow that back when it was first released.

Ever since then RCS has stayed connected even when the google message app got updated via play store updates
[OnePlus 8 Pro Questions & Answers] Mattycee:
Yesterday my phone decided to just connect back to RCS, so I am now not going to change phones and stick with the OP8 Pro! Finally working exactly how I want it to.
[OnePlus 8 Pro Questions & Answers] happiboi:
Glad it's working fo ryou again -lol, gotta love randomness haha:highfive:
[OnePlus 8 Pro Questions & Answers] Elzaa:
Confirming that I also got my OnePlus 6 on Boost Mobile (Telstra Network) working with VoLTE and VoWIFI. The step of downloading the LogCat apk is necessary; without it I didn't see the VoLTE/VoWIFI options in the 'function switch' menu.

Thanks both of you guys :)
[OnePlus 8 Pro Questions & Answers] Spidermaniax:
I've successfully got the toggles to appear, after that I've ran into a, few issues. Do I need root access for this to work? I have the global model, 5g part still has to be done as well? Issues I'm having is my phone not showing in the app on my pc, and the command lines when run I get error codes
[OnePlus 8 Pro Questions & Answers] happiboi:
hey mate - definitely don't need root for this to work (i dont' have root at all and have it all working)

if your phone doesn't show up on pc app - you may need to investigate whether you need to install correct drivers so that pc can recognise phone properly
[OnePlus 8 Pro Questions & Answers] sprocketoctopus:
Try another cable.. .
[OnePlus 8 Pro Questions & Answers] eraser215:
I just get one error here:

Error on upload file '/ims/imshandoverconfig'. EFS error. Code = 26

Anybody else having the same issue?
[OnePlus 8 Pro Questions & Answers] Spidermaniax:
Not sure what I done differently but now working, thanks! Haven't done the 5g part though as I'm still unsure of I need to with the global model?
[OnePlus 8 Pro Questions & Answers] Terra1:
Is it model specific?

I'm about to get the IN2020 and I hope it works for mine.

Sent From My P40 Pro
[OnePlus 8 Pro Questions & Answers] happiboi:
Nah shoulsdn't be model specific - but also, mine is IN2020 and works fine :good:
[OnePlus 8 Pro Questions & Answers] mrmoddy:
I'm on Boost (Telstra) on a OnePlus 6T. This guide definitely got VoLTE and VoWIFI working on my phone and it sticks until you install a system update or factory reset your phone.

My biggest issue with it is although it works well with LTE bands 1 (2100), 3 (1800) & 7 (2600) and has full VoLTE etc., it completely breaks B28 (LTE700) but it breaks it in the most annoying way. If it just broke it and forced the phone back to UMTS band 5 (850) in rural and regional areas that'd be at least decent. It partially breaks it though... so what happens is my phone can still see B28 and tries and sometimes connects to it but can't use data, calls, text or do anything. Eventually the phone realises it's not working and drops back to UMTS and works again until it wants to try LTE again. So basically, it spends 5mins with broken connectivity for every 1min it's on UMTS and working when you're travelling on highways or out camping etc.

Basically, if you expect to leave built up areas with good coverage, lock your phone to 3G or factory reset your phone to remove this modification.

Looking like I'll finally be ditching OnePlus if they don't support VoLTE officially in Australia in the next 6-12 months.
[OnePlus 8 Pro Questions & Answers] sprocketoctopus:
I also have a 6T on Telstra.

I can't say I have experienced this issue - I live in a rural/regional area.

Question: How did you determine this was happening?

Thanks
[OnePlus 8 Pro Questions & Answers] mrmoddy:
I was using Network Cell Info.

I was trying unsuccessfully to use any data, for ages, up arrow was lit as the phone was requesting data, no data would come down though. Could see B28 was all that was visible in Network Cell Info. As soon is I was within range of B3 (1800) or others, everything would work and the VoLTE symbol would appear or when the phone dropped to B5 UMTS all was good. 30+ ASU signal strength B28 was totally unusable for long extended periods over large spans of distance (wasn't just a single tower with issues).

I tried rotating through APNs and resetting them to default. Nothing helped the B28. As soon as I climbed a really big rock while camping, the VoLTE symbol lit up as the B3 connected and I was pulling 10-20mbit/s very nicely. Did not manage to pull a single KB of data while in B28 only areas even though I had no trouble 'seeing' it.

Exact model of 6T is A6010. Had friends in the same vehicle that had coverage almost 100% of the time with Optus whereas I had nothing most of the time except when in the actual towns.
[OnePlus 8 Pro Questions & Answers] realm9thfeb:
Logkit only enabled data for me, I can't use call or receive call/sms.

I have enabled Volte via PDC method, disabled overseas commercial and activated CU-LTE.

Everything works great.

Japan Rakuten/AU Mobile
[OnePlus 8 Pro Questions & Answers] sprocketoctopus:
I have done a few experiments.

I also have a 6010.

I noticed yesterday a similar thing. Went for a long walk Phone would not connect to 4G B28 (it was available) and defaulted back to 3G. I was using Aus. phone towers App.

However i have just tried it again here at home and with wifi off phone is connected to B28 according to Aus phone Towers, I was able to use the internet and I made a call.

But certainly some weirdness particularly when actually roaming around.

I'm like you. I will probably ditch 1+ with telstra not officially supporting these handsets.

Why do that telstra???!!
[OnePlus 8 Pro Questions & Answers] Mattycee:
Has anyone been successful in getting these instructions working on a OnePlus Nord? I have the 8 Pro and have VoLTE/Wifi and 5G working perfectly on Telstra, but I cannot get it to work on the Nord following the same instructions.

It keeps erroring saying "Exception has been thrown by the target of an invocation."

I was hoping it was just a driver issue, but nothing I have done has been able to fix the issue and was hoping someone here had luck with it.
[OnePlus 8 Pro Questions & Answers] Mattycee:
With all the messing around with the drivers trying to get the Nord to work, I have stopped the 8 Pro from working now. [MENTION=2889920]happiboi[/MENTION] Can you advise which drivers you used to get it to show when you're using the commands listed? Mine now keep saying Critical Error. Bad Command.

I've just updated to the DP4 of Android 11 and 5G automatically works, but not ViLTE/Wifi unfortunately. I'm now trying to get it working again.
[OnePlus 8 Pro Questions & Answers] happiboi:
Hey there Matty - sorry for the slow reply.

I used the OP8 Pro drivers from here: https://www.getdroidtips.com/download-oneplus-usb-drivers/

if you have any questions with the VoLTE/VoWiFi, just shout out. This process is fairly straight forward for me now, as i've had to do it after each OTA update
[OnePlus 8 Pro Questions & Answers] cittris:
hey all, I followed the instructions and have VoLTE working on my OnePlus 7 Pro with Boost Mobile.

However i get intermittent connectivity issues. My network will drop out intermittently. Sometimes i will lose VoLTE.

I noticed my phone doesn't seem to connect as quickly with calls.

So i was wanting to roll back. I flashed the stock firmware manually and once i set up again it still showed VoLTE despite me not enabling it, seems it was on by default.

Has anyone got any suggestions or thoughts on the problem i'm experiencing?

TIA
[OnePlus 8 Pro Questions & Answers] happiboi:
you should have the option to disable VoLTE in you SIM Card options too right? like a slider/selector
[OnePlus 8 Pro Questions & Answers] cittris:
I do recall doing that previously and not seeing an improvement but i've just done it again. I will report back.

Thanks for the reply mate.
[OnePlus 8 Pro Questions & Answers] happiboi:
yea that's weird - if its disabled and your still getting drops, not sure what the issue would be?
[OnePlus 8 Pro Questions & Answers] next2devil:
[MENTION=2889920]happiboi[/MENTION]

Is there any universal MBN file I can use for New Zealand?

Sadly, can't find any specific NZ ones to activate voLTE
[OnePlus 8 Pro Questions & Answers] happiboi:
hey mate, unless there's anything in the apac folder that resembels NZ carriers - i am not aware of other MBNs :(
[OnePlus 8 Pro Questions & Answers] _Loms_:
First of all thank you very much for the detailed steps. Unfortunately, I'm stuck at connectivity testing step.

I've Oneplus 8 Pro model IN2023.

When I enter "EfsTools.exe efsInfo" in command prompt, I'm getting the following error.

Use serial port 'COM6'

Critical error. Bad command

Please note that I'm able to see profiles using PDC Tool.

Could you please help?

Thanks!

---------------------------------------------------------------

Update:

I was getting this error in modded 1.2 version. It worked fine in modded 1.1 version.

I've both VoLTE and VoWiFi enabled now.

Thank you!
[OnePlus 8 Pro Questions & Answers] happiboi:
Glad it's all working for you :highfive:

I have heard a few people experience the same with 1.2 as well, that's why 1.1 got included - I used 1.1 too :)
[OnePlus 8 Pro Questions & Answers] happiboi:
I haven't had much play aroudn with Android 11 - I have noticed a few people having issues with enabling this on A11 beta though

I have steered clear of beta for now because a few of the games i play just won't run/open in A11 beta
[OnePlus 8 Pro Questions & Answers] dadnams:
Hey mate, really appreciate the guide you put up. It all worked perfectly for Android 10 but I'm in the same boat with it not working in Android 11.

Phone doesn't seem to be recognised by the PC anymore when turning on the Rndis,diag switch in Engineer mode, so the commands in Command Prompt all just spew out errors. The switches are still there on the Phone's network settings, but the VoLTE icon isn't in the status bar so not working unfortunately.

Tried the PDC method (https://xdaforums.com/oneplus-7-pro/how-to/guide-activate-volte-vowifi-t4116051) as well but the device won't show up in the list for some reason, or even as a COM port. IN2023 device on Telstra.

Any ideas?
[OnePlus 8 Pro Questions & Answers] happiboi:
Hi There,

unfortunately i'm hearign this a bit now with everyone trying out A11. Not 100% sure what the problem is but I think the driver set has changed. The connection between PC & phone is the bridge for the commands to be executed and seemingly this is no longer being recognised.

No immediate rectifications/resolutions yet - i'll try to hunt around to see what can be done.
[OnePlus 8 Pro Questions & Answers] angelvip3r007:
I got my phone from Kogan (in2023) today and I'm stuck just trying to get 5g working. I'm with Telstra coming from a S10 5G. That was/does work with 5G.

For whatever reason, the PDC tool doesn't see the phone.

As per the screenshot the drivers are installed correctly.

I have tried removing and reinstalling the drivers several times and also tried a different PC with the same result, so I don't know what to try next.

On the upside though, I was able to get VoLTE and VoWiFi working....
[OnePlus 8 Pro Questions & Answers] happiboi:
Hi there,

just a query - when you're doing this prior to opening PDC tool:

- are you going into phone/dialer app and typign "*801#" --> to get into engineering mode, then choosing "full port switch mode" on?

- when you launch PDC tool, are you running/opening "as administrator"?
[OnePlus 8 Pro Questions & Answers] angelvip3r007:
Yes I am.

Plug the phone in, type *#801#, enter engineering mode then choosing "full port switch mode".

I then open the PDC tool. I have tried as admin and non-admin.

Edit

Found other drivers and the phone now appears the PDC tool.
[OnePlus 8 Pro Questions & Answers] happiboi:
Glad it's all working for you :highfive:
[OnePlus 8 Pro Questions & Answers] angelvip3r007:
I guess I spoke too soon. Both VOLTE and VOWIFI have disappeared. :( I've tried resetting the switches through logcat, but that didn't help. Short of fully resetting the phone, is there anything else I could try.

I've also noticed today that if I run a speedtest, my mobile data disconnects. I wonder if that issue is related to my missing volte and vowifi.

Cheers.
[OnePlus 8 Pro Questions & Answers] kazlow:
can you share that driver please ? i am unable to connect to pdc after updating to android 11 beta
[OnePlus 8 Pro Questions & Answers] angelvip3r007:
It's on my laptop at home. I won't be home until tomorrow but as soon as I am I'll upload them somewhere and post the link here. ?
[OnePlus 8 Pro Questions & Answers] kazlow:
thanks , stay safe
[OnePlus 8 Pro Questions & Answers] happiboi:
Werre both VoLTE and VoWIFI were working before and now they suddenly dissappeared? That's really weird and haven't experienced myself.

Has yyour phone been updated (software version) recently? That's the only thing that wipes my 5G/VoLTE/VoWIFI, then i have to reapply after each update.
[OnePlus 8 Pro Questions & Answers] angelvip3r007:
Volte was there but I didn't recall seeing vowifi. This was on Thursday, that same day I did the mods. Saturday morning though, it was no longer there.

I did get an update on Thursday as soon as I got the phone out of the box before applying the 5G and other mods but nothing since.

Once I get home I'll try applying the mods again to see what happens.
[OnePlus 8 Pro Questions & Answers] happiboi:
i'm racking my brain trying to think what it could be... but coming up empty.

Re-do the PDC bit for 5G and then do the EFSTools commands again (hopefully no errors) and see how it goes. :fingers-crossed:
[OnePlus 8 Pro Questions & Answers] angelvip3r007:
Here you go.

https://drive.google.com/drive/folders/1IDWvpi6oeZoznVchBT_rdeR13iy7KV9G?usp=sharing

Also included in the Zip is the APK and QPST Tools. Bare in mind, I'm still on Android 10. So I don't know if this driver will work.

---------- Post added at 03:07 AM ---------- Previous post was at 02:30 AM ----------

Did the EFSTools commands again, rebooted and both are now back. Tested Wifi calling by putting phone into flight mode but Wifi on and call went through. VoWfi also appeared. VoLTE also now shows up. Mobile data connection seems more stable too.

Thanks again for all your help. :highfive:
[OnePlus 8 Pro Questions & Answers] kazlow:
thanks alot man but unfortunately its the same version i have , ever since i upgraded to os 11 beta i am unable to connect to pdc to activate volte again but on the flip side beta 2 came out today and it enabled volte automatically lol so its all good .
[OnePlus 8 Pro Questions & Answers] @DJ:
Just upgraded to beta 2. No volte but now have 5g. Max I had on 10 was 4g+.
[OnePlus 8 Pro Questions & Answers] happiboi:
Hey that's great news :good: Glad it's back up and working again. That was really weird for it to disaapear though, hope it sticks this time
[OnePlus 8 Pro Questions & Answers] kazlow:
lol i lost my 5g in return which am ok with honestly, volte is more important to me . i dont think am gonna risk it with beta 3 this time and just wait for the final stable upgrade
[OnePlus 8 Pro Questions & Answers] swtam:
i just wanted to add with the in2023 from Kogan, mine worked a lot better in terms of 5g reception on the EU Rom version as opposed to the Global Rom. I was also having issues under the Global rom with my 5ghz wifi band disappearing. If you are swapping to the EU ROM, download the full pack and not the incremental in Oxygen Updater otherwise the local update function doesnt recognise that there is a file there
[OnePlus 8 Pro Questions & Answers] happiboi:
That's interesting - i wonder what it is in the EU rom that improved reception? I didnt' think that changing rom would enable any extra bands/function but nonetheless it's a good outcome then :good:
[OnePlus 8 Pro Questions & Answers] swtam:
This seemed to be the case. But I was also unable to get PDC working on mine. I had to activate 5G by using the overwriting the carrier policy file in QPST EFS Explorer method. When I had done this in the Global Rom i had the 5G symbol show up but i wasnt connecting to any of the 5G towers. My Cellmapper was only showing 5G status as NOT RESTRICTED and i was barely getting 4G speeds. After swapping to the EU Rom and redoing everything it all worked fine
[OnePlus 8 Pro Questions & Answers] Mattycee:
Has anyone been able to get their OnePlus 8 to connect to their computer on the 11 Beta? I have not been able to get it to work myself and was hoping someone was able to do it.

Can anyone shed some light if they have VoWifi/LTE working with Telstra on Oxygen OS 11 Beta 2?
[OnePlus 8 Pro Questions & Answers] Mattycee:
Still the same issue with the full version that came out today. Not sure if the engineer app needs updating or what, but as it stands, I'm unable to get VoLTE/Wifi working.

Anyone here had any luck?
[OnePlus 8 Pro Questions & Answers] @DJ:
Just figured out why this happened. I downloaded beta 2 from the link on the xda news article https://www.xda-developers.com/oxygenos-11-beta-2-android-11-oneplus-8-canvas/ and that links to 15.x instead of the 15.o AA version I was running previously. The IN2020 has 5G band n78 use by pretty much every provider in Aus, the IN2025 AA does not.
[OnePlus 8 Pro Questions & Answers] JetOoi:
Even the oos11 stable release no luck with PDC and logkit method to enable volte and vowifi? I yet to receive update but i will hold the update if really no way to enable Volte and vowifi. I need vowifi badly.
[OnePlus 8 Pro Questions & Answers] Mattycee:
No joy, it still gives the same error as on the Beta versions. I have good reception at home now so not a massive deal, but I still want to make sure it gives me all the options I get with a local phone. I am pretty sure someone will be able to work it out, as its been working for a few versions of Android now I believe.

The error I always get is the following:-

Use serial port 'COM11'

Critical error. Bad command

I do not believe it is a driver issue as it is using the correct COM port so it may be how Android 11 is programmed??
[OnePlus 8 Pro Questions & Answers] happiboi:
yea i'm getting this as well :(

5G is enabled and workign even with dual sim is enabled in A11 though lol..... trying to work through the volte/vowifi issue now
[OnePlus 8 Pro Questions & Answers] JetOoi:
Thanks Mattycee for update. I think I will wait for proven solution before moving to oos11. My office mobile signal is too bad , I have to rely on vowifi.
[OnePlus 8 Pro Questions & Answers] offlineon:
I have VoWiFi now working perfectly with Telstra (OnePlus 8pro / os11.IN11BA firmware) but not sure which steps I took that activated it. Still no VoLTE and restricted coms with PDC & EfsTools via windows 10.

---------- Post added at 06:11 AM ---------- Previous post was at 05:48 AM ----------

VoWiFi on 11 seems much faster to connect than Android 10.

There is a one off provisioning delay on initial activation, but after that it activates so quickly I am going to test if calls actually get dropped cycling between 4G and wifi. I suspect not

[IMG="Android 11 EU Stable"]https://imgur.com/a/vs6dU5P[/IMG]

---------- Post added at 06:27 AM ---------- Previous post was at 06:11 AM ----------

No it drops even with VoWifi set as reference. Works otherwise, but still a pity as this feature would have been awesome.
[OnePlus 8 Pro Questions & Answers] offlineon:
Ok. The good news is I now have VoLTE and VoWiFi running on Telstra. The bad news is I'm confused about what worked.

I need someone to test with a OnePlus 8 pro with the following conditions:

UK firmware

Telstra Sim (not mvo)

Working 5g

Had previously working VoLTE/VoWiFi via EfsTools

I can be messaged at Whirlpool via the OnePlus 8 thread. Thanks.
[OnePlus 8 Pro Questions & Answers] angelvip3r007:
Hi I'm not sure what your username is on WhirlPool ("Offline" I'm guessing). I have those conditions bar the UK ROM. I'm on the Global ROM.
[OnePlus 8 Pro Questions & Answers] Mattycee:
I am looking at downgrading my OnePlus back to Android 10, getting VoLTE/Wifi working again and then installing the stable version of Android 11 over the top and see if I can make it work.

I updated mine to the Beta and then to the full version, so it wiped my phone, may see if I can keep it with the upgrade only.
[OnePlus 8 Pro Questions & Answers] happiboi:
don't think it'll work.

I was on A10... working 5g, vowifi, volte - updated to A11 (stable OTA) and vowifi/volte not working (5g is though) lol

---------- Post added at 01:43 PM ---------- Previous post was at 01:42 PM ----------

got the above minus the UK firmware - i'm on Global
[OnePlus 8 Pro Questions & Answers] Mattycee:
Thanks, it saved me from the whole deal of resetting the phone again.
[OnePlus 8 Pro Questions & Answers] offlineon:
Ok for some reason things became unstable after switching things on and off multiple times. I'm not sure if it was the carrier or Android 11. *sigh*

Back to the drawing board unfortunately.
[OnePlus 8 Pro Questions & Answers] happiboi:
Reading around - there seems to be an option but only for rooted users...

Appears from multiple random posts, that they are saying Oneplus closed the 'backdoor' on QPST/EFS access& the only way others have made the previous method work is to be rooted and set prop file with root access via adb:

adb shell
su
setprop sys.usb.config diag,diag_mdm,qdss,qdss_mdm,serial_cdev,dpl,rmnet,adb

Then run efstools like previous.

unfortunately i'm not rooted, nor interested in rooting my OP8 pro... so might be a dead end for non-rooted users.

i'll keep reading up though
[OnePlus 8 Pro Questions & Answers] Mattycee:
I was worried it was something like this, I really like the option of having both VoWifi & LTE and would love for Telstra to just allow it on all phones, it obviously works but they like to control things.

I am sure you will have a crack at getting it to work and will keep an eye on it.

Out of interest, offlineon getting it to work to a degree is a good sign surely??
[OnePlus 8 Pro Questions & Answers] sprocketoctopus:
Just a datapoint, might be relevant, maybe not:

Rooted 6T just did the update from 10.3.5-->10.3.6 dirty flash as always..

VoWifi & VoLTE stuck this update, ie no need to do the full dance like a usual point release.

HTH