yashsingh1/xdaforums huggingface dataset:
[OnePlus 8 Pro Questions & Answers] MrUrgit:
Also, as per some other comments, ensure you have a 5G compatible plan from Telstra - Medium or above.
[OnePlus 8 Pro Questions & Answers] dominicstg2:
is there any way to get this working on a custom rom like crdroid?
[OnePlus 8 Pro Questions & Answers] happiboi:
Assuming your rooted to play with custom rom - you shouldn't need to go through half the hassels. PDC / EFS tools should work for you cos you have the ability to open up the necessary ports required for PDC/EFS to communicate
[OnePlus 8 Pro Questions & Answers] dominicstg2:
im getting this error idk how to fix it

Use serial port 'COM4'

any ideas?
[OnePlus 8 Pro Questions & Answers] Old man android:
Well after many attempts at numerous work arounds, I have managed to get volte and vowifi on Boost.

OnePlus 8T KB 2003.

I downloaded the Euro Oxygen( currently11.0.8.12KB05BA) via Oxygen updater then used QPST to change to Telefonica UK
[OnePlus 8 Pro Questions & Answers] dominicstg2:
i can use the efs file to change? im getting com 4 error
[OnePlus 8 Pro Questions & Answers] Mattycee:
So is this still working on the latest versions of Oxygen OS?

I wonder if it will work on the OnePlus Pro 9 as well as I would be interested in testing it when I get my hands on one. (I have sold my OP 8 Pro already)
[OnePlus 8 Pro Questions & Answers] happiboi:
Hey mate, yep still working on the latest.

I think it'll probably work on OP9 Series .. it's work on the 7,8 and Nord so assume it'll continue on 9s

I'm staying on my OP8Pro for now but not 100% keen on OP9s... After this i might be done with oneplus :/
[OnePlus 8 Pro Questions & Answers] sephstyler:
Anyone have any idea which PDC profile may give VoWIFI on VF AU?

5G and VoLTE all good, just VoWiFi missing
[OnePlus 8 Pro Questions & Answers] sephstyler:
Never mind....Telefonica UK. worked
[OnePlus 8 Pro Questions & Answers] amicar:
i have a problem with 5g. after i did all i see 5g but in cellmapper it is not restricted. i see txfreqyency 1770. before i upgraded to 11.0.5.5 i had 5g in frequency 770 and 2550. is there something to do? i am in israel pelephone
[OnePlus 8 Pro Questions & Answers] Mattycee:
This is for Australian carriers so it may be better to ask in a different thread.
[OnePlus 8 Pro Questions & Answers] AmirCanb:
Hi guys,

I bought 8 pro IN2020 recently and I'm on optus and activated 5G. After one month I couldn't get 5G in spite of being in Optus coverage map. I had downgraded from 11 to 10.5 but it doesn't help. Do I have to go for developer things that noted in this Forum? As far as I checked Optus 5G bands are supported by IN2020.
[OnePlus 8 Pro Questions & Answers] MrUrgit:
Optus might not officially support 5G on a OnePlus device out of the box, it may be only on 5G devices they supply.

I did the steps above (on a OnePlus 8 Pro model IN2020) and I can now receive 5G with Telstra, someone else did it and they get 5G with VF. Given all 3 carriers support the n78 band, it wouldn't hurt to try, noting that any software changes (upgrade/downgrade) will probably mean you have to re-enable 5G again.
[OnePlus 8 Pro Questions & Answers] happiboi:
i've had users report the steps previously outlined worked in getting Optus 5G, VoLTE, VoWifi.

definitely needs to be re-applied after each OTA update
[OnePlus 8 Pro Questions & Answers] Dubious01:
It looks like I have found myself in the same boat in that I cannot connect to Telstra’s 5G network with my new OnePlus 9 Pro 5G…

Here is the background –

I have the US variant (LE2125) currently running Oxygen OS 11.2.3.3.LE15AA

Have signed up to the Telstra Upfront Mobile Plan Medium 5G (BYO) plan and confirmed with Telstra numerous times since that 5G is enabled on my service.

Checked ‘SIM & Network’ -> ‘Preferred network type’ and the ‘2G/3G/4G/5G (Automatic)’ setting is enabled.

Both my home and work addresses in Sydney are in Telstra 5G coverage areas but still no 5G connection on my new phone, only 4G/4G+.

Where I am currently at now –

I have run through the steps outlined by happiboi here (https://xdaforums.com/t/volte-and-vowifi-in-australia.4095097/page-9#post-84127849) but hit a little roadblock.

I can run the "setprop sys.usb.config diag,diag_mdm,qdss,qdss_mdm,serial_cdev,dpl,rmnet,adb" command without a problem.

Then I open the PDC Tool (in Admin mode) on my PC (Windows 10 Pro 64-bit) and find that the drop-down box is empty, and no phone/device listed so cannot proceed. ☹

I’m suspecting its driver related because in Device Manager I see the following 4 devices listed under the ‘Other devices’ category have popped up and are driverless –

DPL Data

LAHAINA-MTP_SN:xxxxxxxx

QDSS DATA

RmNet

FYI – I am using the QPST_2.7.496 pack.

Questions –

Has anyone else experienced the drop-down box being empty in the PDC Tool and able to steer us in the right direction for a fix?

Am I on the right track in that its driver related?

If so, any idea where I can locate the drivers for the 4 ‘Other ‘devices’ listed above?

Fingers crossed it is a simple solution and I appreciate anyone’s suggestions to help resolve the situation.
[OnePlus 8 Pro Questions & Answers] gee.dunkin:
Yes I had the same problem. It was to do with the Qaulcomm drivers.

Delete the ones you have currently installed and get them from here;

https://gsmusbdriver.com/install-qualcomm-usb-driver.

Also once the device shows up in PDC don't click on it, open efs explorer and let it start searching directories before going back to PDC and clicking on the device in the drop down. The window may say 'not responding' just leave it until the carrier list populates then follow the rest of happiboi guide then profit 👌
[OnePlus 8 Pro Questions & Answers] Dubious01:
Well that worked an absolute treat. I now have 5G & VoLTE working. Thank you very much for your help! (y)
[OnePlus 8 Pro Questions & Answers] happiboi:
Might add this into the other post as well so people can download if they run into issues
[OnePlus 8 Pro Questions & Answers] MrUrgit:
Once again, no issues getting 5G/VoLTE/VoWiFi working on open beta 9 on my IN 2020
[OnePlus 8 Pro Questions & Answers] evakq8r:
Have the steps to enable VoLTE and VoWiFi changed since the latest update? (11.0.5.5.IN11BA - IN2023 model). I've followed the same procedure on Page 9 of this thread, but cannot get either VoLTE or VoWIFI to function. Mobile carrier is Boost. :(

The only network that has attempted VoLTE in the PDC is CU-VOLTE, but as soon as a call is made or received, VoLTE disappears and the call fails back to 3G.
[OnePlus 8 Pro Questions & Answers] happiboi:
Negative - i've recently gone throguh the exact same steps after the 11.0.5.5 update and all is still working on Telstra for me
[OnePlus 8 Pro Questions & Answers] evakq8r:
Figured as much.

Have tried the steps again (6th time) and factory reset the device twice, VoLTE and VoWIFI are no shows. :(

No errors in any of the output, only the one SIM, just nothing functional.
[OnePlus 8 Pro Questions & Answers] evakq8r:
Welp, did the same instructions again (after porting to Telstra from Boost - only took half hour, surprisingly (tad extreme, but oh well)), and it now works! :D
[OnePlus 8 Pro Questions & Answers] gee.dunkin:
Good call, you actually got me onto that gsm page when I was having issues with OnePlus drivers early on... seems like a pretty solid source for a lot of different drivers!! What is the other post that you are going to add the link to?
[OnePlus 8 Pro Questions & Answers] happiboi:
added back into this one:

https://xdaforums.com/t/volte-and-vowifi-in-australia.4095097/post-84127849
[OnePlus 8 Pro Questions & Answers] JashanjotSidhu:
Switched to a global ROM and followed instructions by @happiboi alongside enabling VoLTE and VoWifi via logkit apk.

Both VoLTE and VoWifi Working good on Boost.
[OnePlus 8 Pro Questions & Answers] Mattycee:
I have bought a OnePlus 9 Pro to have a play and I am able to get 5G working perfectly, but I am unable to get VoLTE/Wifi working. I am on the European Rom so not sure if that is the issue, but can someone assist in what I need to do to get VoWifi/LTE working please?
[OnePlus 8 Pro Questions & Answers] happiboi:
Are you able to grab a copy of Global ROM for it and then retry the steps?

EU Rom would have different carrier files
[OnePlus 8 Pro Questions & Answers] Mattycee:
After about 30 minutes or so VoWifi showed up and I am also able to do VoLTE despite the icon now showing up.

I have tested a call and it stays connected to 5G, so I am going to leave it as is for the moment.

I may flash the Global rom later and see how I go once that happens, but as it stands it is working.
[OnePlus 8 Pro Questions & Answers] happiboi:
have the icons/switches been enable via logkit?
[OnePlus 8 Pro Questions & Answers] Mattycee:
Yes they are all switched on. The VoWIFI icon is on, but the VoLTE one is not but when I make a call it doesn't kick back to 3G anymore so I think it is working although the speeds are much slower when on a call, so I am not sure if that is supposed to be the case.
[OnePlus 8 Pro Questions & Answers] happiboi:
hmmm i did a test a while back and speeds should drop if it's working correctly though
[OnePlus 8 Pro Questions & Answers] Mattycee:
It is working as it is supposed to then. I am not sure why I do not get the VoLTE icon though! Strange
[OnePlus 8 Pro Questions & Answers] AmirCanb:
Thank @MrUrgit. it works for me and I have 5G, I modified ims_user_agent file and noted Optus. I don't have VoLTE but I doubt it is active on my Optus number.
[OnePlus 8 Pro Questions & Answers] happiboi:
lol i just re-read what i wrote - i meant to say "shouldn't" not should!
[OnePlus 8 Pro Questions & Answers] Mattycee:
Ah that'll do it! Right I guess it is not working as it should then!
[OnePlus 8 Pro Questions & Answers] MrUrgit:
don't thank me, thank happiboi, this is his guide after all.
[OnePlus 8 Pro Questions & Answers] happiboi:
All good, i just collated bits and pieces from others who worked it out for us. Hard work and credits go to them :)
[OnePlus 8 Pro Questions & Answers] Mattycee:
The VoLTE icon was just turned off in the settings, I have turned it on now and it's showing. Maybe the speed drops a little when on a call. I've never tested it before. It is faster than 3G for sure.
[OnePlus 8 Pro Questions & Answers] happiboi:
i say take that as a win!

i just re-tested mine and it drops. swore it didn't previously but it definitely drops for me too but still decent enough speed to continue browsing/gaming activities
[OnePlus 8 Pro Questions & Answers] mhall156:
Thank you for all the hard work in this forum! Got my Oneplus 9 Pro (UK Variant) today, got Volte, Vowifi, and 5G all working with Vodafone.

On an Interesting note, when enabling the toggles via the logkit I got Volte to work but no Vowifi or 5G without following the guide on page 9.
[OnePlus 8 Pro Questions & Answers] EvilLittleLlama:
I'm having the same issue, Rndis switch is on but when I put 'EfsTools.exe efsInfo' into command I get

"Use serial Port 'COM14'

Critical error. Bad command"

Does anyone know what causes this or a workaround?

5G working perfectly thanks to happiboy and this thread, now just hoping to have VoLTE
[OnePlus 8 Pro Questions & Answers] dominicstg2:
i got both to work i used

https://xdaforums.com/t/guide-fix-enable-5g-and-dss.4206461/

https://xdaforums.com/t/guide-activate-volte-and-vowifi-simple-and-clear.4116051/
[OnePlus 8 Pro Questions & Answers] MrUrgit:
All working once again on Open Beta 10 for the 8 Pro.
[OnePlus 8 Pro Questions & Answers] jaymact:
same model and version here.. not working in my device,,,
[OnePlus 8 Pro Questions & Answers] joshndroid:
Mate thanks for the guide.

I have just knocked this over on a NORD.

It would appear that 5G is connected however in some apps it seems to list 4G LTE. The speeds are less than 4G+ (or whatever it is) however it would seem that this is expected when its all about distance from tower and line of sight, etc for 5G to be at its peak.
[OnePlus 8 Pro Questions & Answers] happiboi:
Yea - i think there's an app that you can install to tell you signal strength and type etc. It should list as 5G but weak in most unless you're near the towers in a well covered area.

Glad the steps work for you too
[OnePlus 8 Pro Questions & Answers] MrUrgit:
You could also try engineering mode by dialing *#*#4636#*#*

Hopefully it also works on a Nord
[OnePlus 8 Pro Questions & Answers] EvilLittleLlama:
Are you running Android 11 on OP 8/Pro?

This doesn't work for me even with Qualcomm drivers nothing shows up in PDC. I did do this method previously on Android 10 and it worked back then but no longer
[OnePlus 8 Pro Questions & Answers] dominicstg2:
i am on a chinese 8t that has the oos on it got it from a reseller in australia it was on beta build when i tried it after following all the videos i posted i got it working now on custom roms everything works perfectly
[OnePlus 8 Pro Questions & Answers] EvilLittleLlama:
Cheers for the info.

Ended up getting it and my partners OP8 to show in PDC using

1. adb reboot ftm

2. adb shell

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

4. Change profile PDC

5. adb reboot
[OnePlus 8 Pro Questions & Answers] dominicstg2:
good work bro im very happy i have 5g and volte etc its so much better
[OnePlus 8 Pro Questions & Answers] joshndroid:
It was rock solid until i lost it after an update. No matter, currently going through the process again. Kind of expected it but it all was great, made the phone far more stable especially for calls which wer pretty flakey as you watch it try to kick back to 3G and hang... whereas after the changes it would be sweet

thanks mate i just updated and lost it all so will try this out this time as well.
[OnePlus 8 Pro Questions & Answers] joshndroid:
So for anyone up doing updates on the NORD...

I dont see the telefonica UK anymore in the PDC drop down.

While i updated and could get 5G back through the policy/ims files... i was unable to get wifi or lte calling to work again...
[OnePlus 8 Pro Questions & Answers] BigRed0592:
5G working great on IN2020 CN Global Rom on 11.0.2.2, Telstra network, thanks to happiboi's instructions. Not able to get VoLTE and VoWiFi working though, not sure why.

Had to roll back initially as 5G and VoLTE and VoWiFi not working on latest update 11.0.6.6.

Will stay on 11.0.2.2 until PDC and EFSExplorer issues are fixed.

Thanks a lot happiboi.

EDIT: Figured out how to enable VoLTE and VoWiFi on 11.0.2.2 without root, did some searching on other sites.

1. Download and install this older version of the LogKit https://downloadmirror.co/1MW9/com.oem.oemlogkit_1.0-1.apk

2. Go to phone app and dial *#800#

3. Scroll down to Function Switch and tick the boxes next to VoLTE and VoWiFi then reboot phone.

4. Should now be working, if not then go into SIM settings on phone and check the VoLTE and Wi-Fi Calling toggles are on. Also make sure the icons are toggled on in the Icon Manager section in phone settings.

Tested with my mate next to me and the icons stayed on throughout both calls!.
[OnePlus 8 Pro Questions & Answers] happiboi:
glad it's now working for you mate.

yea - I kinda overlooked that logkit part as most have here have been on kind of a journey with this process and had done the logkit + toggles part earlier. I might add a link in the post to a previous post to remember to do that logkit bit for new comers.
[OnePlus 8 Pro Questions & Answers] sprocketoctopus:
Just a data point - 1+ 6T:

This 'hack' is now completely breaking my data connection (Telstra - rural/regional Victoria). As per here:

This may be because the UMTS is gradually being repurpsed - I dunno.

But with the phone operational on SIM1, and this 'hack' placed on SIM1 [only] I can get VoLTE & VoWiFi without a problem, but mobile data is basically not operational OR;

when SIM card placed in slot SIM2, SIM2 Mobile data works as it should, but no VoLTE or VoWiFi.

HTH someone else...
[OnePlus 8 Pro Questions & Answers] MrUrgit:
Telstra 5G/VoLTE working again on IN2020 with Open Beta 11
[OnePlus 8 Pro Questions & Answers] DaveC24:
Hey guys,

I've heard that 5G was initially functioning on these but an update broke it? If I buy a Oneplus 9 Pro (US version) does anyone know what version it comes with out of the box? Can I just avoid updating it to not break the 5G?
[OnePlus 8 Pro Questions & Answers] mhall156:
Hey DaveC24,

I can confirm running the latest version of OOS on my UK variant 9pro and following this guide still works flawlessly. Getting volte, vowifi, and 5g on the telstra network.
[OnePlus 8 Pro Questions & Answers] DaveC24:
Am I better off with the UK variant or is the US one fine?
[OnePlus 8 Pro Questions & Answers] mhall156:
From my research the UK variant is the best variant for Australia due to it supporting all the Australian bands. US one will still work but won't support all the bands used here so therefore you may result in slower speeds, or worse coverage in certain areas.

https://whirlpool.net.au/wiki/mobile_phone_frequencies

This post has a list of all the bands used in Aus and I then just compare to each variant on gsmarena as to which version suits best.

US version also doesn't support dual sim if that matters to you.
[OnePlus 8 Pro Questions & Answers] MrPariah:
@happiboi

Hi mate, appreciate your amazing efforts in this thread to help us aussies get volte on our Oneplus phones.

I've just ordered my first oneplus phone (8T UK Variant)

I'm just replying to ask if the method you outlined in page 2 of this thread is still the go to method to enable both volte and vowifi on the 8T I'd be receiving?

Thanks for your help!
[OnePlus 8 Pro Questions & Answers] mhall156:
Hey MrPariah,

The most up to date method for Android 11 is outlined in happibois post on page 9.

Good luck :)
[OnePlus 8 Pro Questions & Answers] MrPariah:
Thank you so much @mhall156 !!!

Looks like a tedious process, I'll have to get familiar with it whilst I wait for my 8T

thanks again for your help!
[OnePlus 8 Pro Questions & Answers] MrPariah:
Hey @mhall156

Where does he get EFS Explorer? Is that an application on the phone or on the computer?

Also does it need root permissions?

thanks!
[OnePlus 8 Pro Questions & Answers] mhall156:
Hey Mate,

EFS Explorer is part of the QPST suite which also includes PDC.

Download QPST Flash Tool (all versions) - Qualcomm Flash Tool

Download the latest version of QPST Flash Tool to flash stock firmware on any Qualcomm Smartphone and Tablets. Available version: 2.7.453, 2.7.474, 2.7.480.

androidmtk.com

Here is the link to download the suite itself, its a suite of programs for the PC.

You will also need ADB installed on your PC, here is a guide for this; https://www.xda-developers.com/install-adb-windows-macos-linux/

This method does not require root, the only other thing required is to actually enable the toggles with the old oneplus logkit which is linked here; https://downloadmirror.co/1MW9/com.oem.oemlogkit_1.0-1.apk

@BigRed0592 explains this process at the top of this page.

Let me know if you have any other questions!
[OnePlus 8 Pro Questions & Answers] happiboi:
You guys have it sorted!

Yep this method on p9 still works ;) good luck and if you have any questions - happy to try to answer
[OnePlus 8 Pro Questions & Answers] mhall156:
Just getting keen for this method to break when A12 gets released haha
[OnePlus 8 Pro Questions & Answers] happiboi:
noooooooo don't even go there, i'm dreading that at the moment lol
[OnePlus 8 Pro Questions & Answers] Old man android:
Is it just me or did the latest update 24/7/21 break Volte vowifi and 5g? I tried Happyboi's method (as I've done numerous times) with no result
[OnePlus 8 Pro Questions & Answers] happiboi:
Hey Old Man,

what update did you get? i've checked a few times on mine and haven't seen any newer updates come through yet?
[OnePlus 8 Pro Questions & Answers] Old man android:
G'Day Happiboi

It was/is a security update for July I think. I'm loathe to download and open it again..... Rolled back and followed your instructions again. All good.

Of course I could have stuffed up after the download as I woke though the night pressed the update and went through your instructions pre coffee in the morning!!
[OnePlus 8 Pro Questions & Answers] happiboi:
All good then , glad it's working again haha. Caffeine solves the world's problems i say!!
[OnePlus 8 Pro Questions & Answers] Old man android:
It's OxygenOS 11.0.9.9.KB05AA
[OnePlus 8 Pro Questions & Answers] MrPariah:
Any one have an idea on whether the steps outlined in Page 9 by Happiboi to enable 5g+VoLTE+VoWIFI work on the latest version 11.0.8.13? If not what is the latest update that maintains 5g+VoLTE+VoWIFI for the OnePlus 8T?

Just trying to figure out what I need to do before my 8T comes in the mail

Thanks in advanced! :D
[OnePlus 8 Pro Questions & Answers] Old man android:
Yep works perfectly for 8.13. My above concern is about the latest update which arrived last week....
[OnePlus 8 Pro Questions & Answers] MrPariah:
Great! Thanks for clarifying that, oh I see. I wonder what benefits the update that arrived last week provides or is it strictly a security patch?
[OnePlus 8 Pro Questions & Answers] Old man android:
I reckon just security patch. I must admit that any update I have received since buying the 8T has made absolutely no noticable difference to anything. But as noted above it may have affected this work around. I'm not keen to try it again, so waiting for others to comment.
[OnePlus 8 Pro Questions & Answers] mhall156:
Hey mate,

Just got the latest update for my OP9pro and method still working flawlessly for it.

Can't speak 100% for the 8t as I don't have one but I believe it's still working! Let us know if you give it another crack!
[OnePlus 8 Pro Questions & Answers] happiboi:
It's weird that OP9 series works, OP8 series works but the latest on the OP8T encountered issues.

i'd say give it another try if you can - as long as you're comfortable rolling back to prior version if needed.
[OnePlus 8 Pro Questions & Answers] Old man android:
Oh shame on me! Worked perfectly. Yes I had numerous coffees first :). Thanks all for comments.
[OnePlus 8 Pro Questions & Answers] rotiboi:
hello sorry if this is really simple question but i got up to the PDC step and i couldnt find my Oneplus 8. could someone please explain how to uninstall and reinstall these drivers?

also, had a mini heart attack when my phone scree was still black and had to fast boot to restart it haha
[OnePlus 8 Pro Questions & Answers] mhall156:
Hey mate,

I believe you'll need to install the Qualcomm drivers from this site https://gsmusbdriver.com/install-qualcomm-usb-driver

Once you install those and reboot the pc, then your phone should show up in PDC.

Let us know how you go!

Cheers
[OnePlus 8 Pro Questions & Answers] rotiboi:
hey man thanks for the response. im struggling to uninstall the old qualcomm drivers - are they supposed to be under device manager?

also am i meant to be searching for specific oneplus 8 drivers or isit just the qualcomm driver directly from that link?

thanks very much for your help
[OnePlus 8 Pro Questions & Answers] mhall156:
Hey mate,

You shouldn't need to uninstall any other drivers, you will just need those qualcomm drivers I sent from that link.

Just follow the instructions on that webpage of how to install them and should work sweet.
[OnePlus 8 Pro Questions & Answers] rotiboi:
thanks mate i've gotten another step further now haha

so now ive opened up eps explorer and let the directory load from my phone. then once i select my device in PDC, i get this error saying "*** connect to device failed" (attachment below). has anyone gotten this error before?