yashsingh1/xdaforums huggingface dataset:
[OnePlus 8 Pro Questions & Answers] rotiboi:
hey everyone wanted to update that i've got 5g+volte+vowifi working on my OnePlus 8 now!! (with Optus). thanks to all the contributors on this thread, it's been a massive help

sharing some of the steps i took/things i learnt along the way:

1. reinstalled the qualcomm drivers here (https://gsmusbdriver.com/install-qualcomm-usb-driver) as suggested by mhall156 (didn't have to uninstall anything)

2. reinstalled the oneplus drivers provided in the youtube video:

(this seemed to fix the "**** connect to device" error in PDC i was facing previously. Again, didn't have to uninstall anything)

3. this one might be obvious to most but to replace the ims and policy xml files is just a matter of deleting the existing files and uploading the files provided. i kept trying to overwrite the current files somehow - silly me. (also didn't have to change anything in the xml files even on optus network).

4. also if you got an error while your phone was in the "adb reboot ftm" mode, just do a fast reboot by holding the power button and volume up button simultaneously.

5. remember to contact your carrier to enable 5g/volte. after i completed all the steps, it was still not working for me. turns out the 5g/volte services aren't activated by default and i had to contact optus chat to request these services to be enabled

hope this helps someone and i'm off to enjoy what feels like a brand new device now :)
[OnePlus 8 Pro Questions & Answers] hotrodwinston:
Verizon support for 8t?

I'm half tempted to just try and see but I haven't flashed anything in 6+ years so a little nervous especially using hardware tools as I haven't used those since nexus7 (2012)

Edit: volte works out the box.

Cant test 5g (no coverage) but it should work. I just need wifi calling.
[OnePlus 8 Pro Questions & Answers] rotiboi:
anyone else find that the volte stopped working after the latest security update?
[OnePlus 8 Pro Questions & Answers] MrUrgit:
You need to re-enable VoLTE after an update as the update will overwrite your VoLTE settings.

Mine is working fine on 11.0.9.9 after I re-enabled VoLTE.
[OnePlus 8 Pro Questions & Answers] rotiboi:
perfect! got it working again thanks!
[OnePlus 8 Pro Questions & Answers] mhall156:
Has anyone been brave enough to try the Android 12 betas and see if our volte method still works?
[OnePlus 8 Pro Questions & Answers] pjmarshall2307:
Hi I have the Nord AC2003. I have followed happiboi excellent instructions however I don't have 'Telefonica_UK_Commercial' as a profile. I tried using 'Telefonica_Czech_Commercial' but no luck.

Any suggestions about which one I should use ?
[OnePlus 8 Pro Questions & Answers] MrUrgit:
Austria & Slovakia both use the n78 band which is used in Australia, so maybe try those. Looks like the Czech operators aren't using that band.

List of 5G NR networks - Wikipedia

en.wikipedia.org

Australian 5G bands

https://whirlpool.net.au/wiki/mobile_phone_frequencies
[OnePlus 8 Pro Questions & Answers] pjmarshall2307:
I tried this but no luck. I was thinking of install the stock ROM for EU instead of Global and then try happiboi 's fix. Mine is Build Number 11.6.6.AC01AA
[OnePlus 8 Pro Questions & Answers] MrUrgit:
Sorry for the late reply, but I have just seen this link for the Nord from earlier in this thread, maybe it might help:

https://xdaforums.com/t/5g-not-working.4179181/#post-84034583
[OnePlus 8 Pro Questions & Answers] pjmarshall2307:
Thanks I'll give that a go.
[OnePlus 8 Pro Questions & Answers] Kalanyr:
There does seem to be an issue with the carrier_policy given here. While 4G/5G and their accompanying data modes work, when you get down to 3G , the data mode doesn't work (while the Phone and SMS functions do work).

I need to do some checking and see if this is an issue that happens with the unmodified phone config (it's possible that this is a hardware mismatch between the Australian bands and the hardware in the phone since Australia is starting to wind down 3G).
[OnePlus 8 Pro Questions & Answers] mhall156:
Funny you mention this, I had this exact issue with Vodafone au on my 9pro and just assumed something wasn't happy. Never even thought it was something to do with this fix. Telstra 3g worked/works flawlessly.

I'm running OOS12 now and volte vowifi and 5g finally all work out of the box in aus so can't go back and test it. I will try Vodafone 3g again though and see what results I do get with OOS12 and see.

What carrier are you with? And what phone?
[OnePlus 8 Pro Questions & Answers] Lofty248:
Hey guys,

First of all huge thanks for everyone's efforts!

Having a bit of trouble with VoWifi.

I live in a zero reception area and would love to get it working.

Have followed the steps as per page 9 and now VoLTE is working, speed stays good during calls and VoWifi works at my partners house when I have cellular reception (dialer shows calling via wifi).

However when I am at home with no reception and try to make a call I get the message "Mobile network is not available. Connect to a wireless network to make a call.", setting the phone to flight mode prompts me to turn off airplane mode to place a call.

Have called my provider, Moose mobile (Optus), to verify everything is enabled from their end and the tech says it should be working.

No 5g in the area nor do I have a 5g plan so this does not bother me at all, but getting wifi calling to work would be incredible.

If anyone has any ideas please let me know, Thanks!

In2020 Ver 11.0.10.10
[OnePlus 8 Pro Questions & Answers] Kalanyr:
Telstra using a One Plus 8 Pro.
[OnePlus 8 Pro Questions & Answers] MrUrgit:
If you haven't already checked it, make sure you have set the Calling Preference for Wi-Fi Calling to "Call over Wi-Fi" and see if that helps.
[OnePlus 8 Pro Questions & Answers] Lofty248:
Yup, already set.

When I manage to catch a single bar of signal I can quickly start a call and it must be working through wifi as I have never been able to make a call with any previous phones.

It seems like the phone refuses to try to initiate a call and is also unable to receive calls.
[OnePlus 8 Pro Questions & Answers] MrUrgit:
You should see the VoLTE or VoWiFi icon in the status bar when they are active - you may need to enable it in Settings -> Display -> Status Bar -> Icon Manager.

Mine shows up when I have my phone in Airplane mode and have Wi-Fi active. It then switches to VoLTE when I disable Airplane mode.

Also, I needed to do an extra restart on my phone after enabling 5G (after the last "adb reboot" command) so that it works.
[OnePlus 8 Pro Questions & Answers] Lofty248:
Thanks, I can see the icon in the status bar.

Over the last few days the vowifi icon seems to come and go at it's own volition, no pattern that I can notice.

When it's showing everything is working as it should, but when it's not there is nothing I can do to get it back, tried all combinations of restarting, power off, flight mode with wifi, no flight mode...seems like the phone needs to pick up at least one bar of signal to register then it stays good for a while.

Only theory is it might have something to do with the ims_user_agent, I used the "Telstra Volte Qualcomm" one although my provider is Optus.

When I get a chance I might jump into a hex editor and try make an Optus one.
[OnePlus 8 Pro Questions & Answers] MrUrgit:
Hmmm, it would appear 5G is working for me "out-of-the-box" with the new Android 12 Open Beta 1 on my 8 Pro, but not VoLTE or VoWiFi.

The instructions on page 9 also do not allow me to enable VoLTE/VoWiFi as my device reboots back to the system straight away when I do the "adb reboot ftm" command.

Also, it looks like RCS has stopped working in Google Messages.
[OnePlus 8 Pro Questions & Answers] phrosyn:
I'm also having an issue with voWiFi. voLTE looks and works well but can't get the voWiFi icon to show even with combinations of flight mode, activating, deactivating. I'm on boost with KB2003.

Was anyone else able to solve threir voWiFi problem?

Are these to fuctions activated by the same setting? I'm wondering which step I may have messed up.
[OnePlus 8 Pro Questions & Answers] phrosyn:
Just tried the steps again and realised I had my filename extensions turned off so my carrier_policy didn't get renammed properly.

Still not sure if the phone is switching properly between volte, vowifi and gsm. It requires some settings being switched off and on to make it kick in. Hopefully I'm just being impatient.
[OnePlus 8 Pro Questions & Answers] mhall156:
Sounds about right, will take some time before it naturally switches over to vowifi and depending on the settings you have selected for network preference. Glad you got it all figured out though.
[OnePlus 8 Pro Questions & Answers] MrUrgit:
Factory Reset fixed RCS, but still no VoLTE/VoWiFi to be seen.
[OnePlus 8 Pro Questions & Answers] rotiboi:
I've just updated to OOS12 last night and seem to be experiencing the same. 5g works fine but i cant even find the toggle to volte or vowifi anymore. (P.s. i have turned the icons on in the settings already)

Has anyone got it working on OOS 12 already?
[OnePlus 8 Pro Questions & Answers] MrUrgit:
So far I have found this, but still unable to find the VoLTE/VoWiFi toggles

https://xdaforums.com/t/secrecy-unlock.4365059/
[OnePlus 8 Pro Questions & Answers] rotiboi:
Thanks for the quick reply.. i'll update if i manage to figure it out
[OnePlus 8 Pro Questions & Answers] rockres:
Hi All. Long time watcher, first time posting. Firstly a HUGE thank you to everyone that has contributed here, the help you have given me is amazing... for someone that has no service at home & needs WIFI calling on my ONEPLUS you have been a HUGE help, so thanks.

I've been tossing up the move to Android 12... just wondering if I should? No wifi calling makes this phone a brick for me basically. Would love to know if anyone has made the jump :)
[OnePlus 8 Pro Questions & Answers] Wolfillete:
Same problem for me and for bunch of other people as I saw in the OPForum... Also my phone changed from KB2003 to KB2005 because of the update to global rom...
[OnePlus 8 Pro Questions & Answers] AmirCanb:
Hi everyone,

I upgraded my OP 8 pro to android 12. But now I can't reboot to ftm. I found it is because USB debugging is not working after reboot. I used adb and can get the list of devices. adb reboot ftm works and phone goes to reboot but turns on again.

I select always trust to this computer for debugging
[OnePlus 8 Pro Questions & Answers] AmirCanb:
By the way, 5G remained available after the upgrade!
[OnePlus 8 Pro Questions & Answers] Goo8:
Hi Amir,

I'm in the same boat.

I've worked out the problem, Android 12 defaults to "Charge only" for USB connections wihch is why when you perform "ADB reboot ftw", it starts up in field test mode but then doesn't detect any USB data, so just restarts back normally.

I've tried toggling the "Default USB configuration" to File transfer / Android Auto from developer options, but this doesn't seem to work anymore. So until we can work out how to force the device to default the USB mode to File transfer we are stuck.
[OnePlus 8 Pro Questions & Answers] phrosyn:
Has anyone done this with a custom rom?

If so, what android version and did you end up in a bootloop?
[OnePlus 8 Pro Questions & Answers] phrosyn:
I tried 'adb reboot ftm' today on nameless rom. It just rebooted to lockscreen just as stock rom does. However, it did not allow me to use the touch screen or unlock in any other way. 'adb reboot' was able to solve the issue
[OnePlus 8 Pro Questions & Answers] rotiboi:
Not a solution but just wanted to rant. I think ive tried about everything but still cant get volte and vowifi to work on my OP8 after update to OOS12. Will sadly move away from oneplus for my next device and i imagine i wont be the only one...
[OnePlus 8 Pro Questions & Answers] Goo8:
I'll be doing the same. I never fell in love with the 8 pro. likely due to the rounded edges. I'll probably move over to Samsung S22+ until Apple release iphone with USB-C.
[OnePlus 8 Pro Questions & Answers] gaosong2101:
Did you succeed eventually? I'm on the unofficial CherishOS (https://xdaforums.com/t/rom-12-1-cherishos-3-9-unofficial-oneplus-8-pro.4370923/) and after running "adb reboot ftm" it just reboots as normal
[OnePlus 8 Pro Questions & Answers] zioloiso:
I have the same problem, Oneplus now is ****..
[OnePlus 8 Pro Questions & Answers] phrosyn:
Yeah, I just ended up rooting and following the adb method to open the specific ports for pdc tool and efs explorer. I'm on Nameless. The process does have to be repeated after any rom updates though.
[OnePlus 8 Pro Questions & Answers] gaosong2101:
Thanks! I just got it working as well by running `su` before setting the prop in the shell
[OnePlus 8 Pro Questions & Answers] MrPariah:
Is anyone able to confirm if this method works on the OnePlus 10 pro? I'm interested in buying it as an upgrade from my 8T and was wondering if I could use this method to also get Volte, Vowifi and 5G on the 10 Pro

Thanks!
[OnePlus 8 Pro Questions & Answers] mhall156:
This method no longer works as of OOS12, but since OOS12 Volte, Vowifi, and 5G have been working natively. The Oneplus 10 Pro should work perfectly out of the box. Although I do not own one to confirm that 100%.
[OnePlus 8 Pro Questions & Answers] MrPariah:
Hey mate thanks so much, can I ask what you're basing that off if you don't own a 10 Pro? It'd be great to not do this workaround again each time I update, if I decide to get a 10 Pro which is definitely on the cards

Cheers!
[OnePlus 8 Pro Questions & Answers] mhall156:
Hey Mate, I was basing this off my 9 Pro, since the OOS 12 update and the merge with Color OS codebase it has been working natively. I can only assume that is because Oppo phones with Color OS are sold in AUS.
[OnePlus 8 Pro Questions & Answers] MrPariah:
Thanks mate that does make sense, is anyone able to confirm their Oneplus 10 pro supports 5g volte and vowifi since the coloros update? It's essentially the only thing holding me back from buying this phone
[OnePlus 8 Pro Questions & Answers] roffiki:
Hi all, have been sitting on oos11 with my 8 Pro IN2020 and have successfully been enabling 5g/VoLTE/Vowifi w/ Telstra. From reading above, OOS12 looked like it had some problems. Anyone confirm if I update to the latest OOS13, can 5g/VoLTE/Vowifi be enabled?
[OnePlus 8 Pro Questions & Answers] rotiboi:
Hey everyone, I was playing around with this app called Shizuku recently and came across a solution for VoLTE that seems to work for my Oneplus 8 but you'll need to install and setup Shizuku.

FULL DISCLAIMER:

I haven't used Shizuku before but it appears to be an app that grants you access to some root permissions without having to actually root your phone.

Instructions to setup Shizuku here:

Instructions to enable VoLTE (just download the apk file and start from Step 4):

Enable VoLTE/VoWiFi in unsupported countries without root (requires Shizuku)

Hi all, Bellow you can find some info on how to attempt to enable VoLTE in unsupported countries (tested in Romania, Digi carrier) using Shizuku and Pixel IMS app for it. This assumes that you have ADB and drivers properly setup beforehand. 1...

xdaforums.com

Would be curious to hear how you guys get on if any of you are keen to give it whirl
[OnePlus 8 Pro Questions & Answers] PanNet7:
I have 13U and VoLTE works for me. There is option in the settings to switch it on or off. I am in aTelstra too.

There is no option VoWiFi unfortunately.
[OnePlus 8 Pro Questions & Answers] MrUrgit:
Have done the Shizuku/Pixel IMS method, VoLTE and VoWiFi now seem to work on OOS13.1 on my 8 Pro (on Telstra 5G).

Wi-Fi Calling toggle is present, no toggle as such for VoLTE, just the options fir using the second SIM for data etc.
[OnePlus 8 Pro Questions & Answers] StelardActek:
[MENTION=10789533]Enchiridion20[/MENTION] I was considering Kogan, though I need to make sure I'd be able to get VoWIFI working before dropping the money on it. They're also sold out of the global version last I checked, which is the one you'd probably want, I think.
[OnePlus 8 Pro Questions & Answers] happiboi:
so does that mean we have VoLTE working on our phones then lol? i'm still not 100% sure.

---------- Post added at 09:55 PM ---------- Previous post was at 09:53 PM ----------

FWIW, i got mine from Becextech. CN version, Global rom flashed - received the latest Oxygen updates o nit as soon as I start the phone up. Pretty happy so far.
[OnePlus 8 Pro Questions & Answers] StelardActek:
Well, I have contacted Telstra via the My Telstra app, and their rep claims VoLTE and VoWIFI will work on the OnePlus 8 Pro. So I guess I might get one.

They did specify that at this stage they are limiting access to the 5G network to iPhone 11 and Samsung S20, and later handset in that line, however.
[OnePlus 8 Pro Questions & Answers] happiboi:
That's reassuring - but still don't see the VooLTE & VoWiFi icons in the status bar.

I think if it's active, they should be there cos coincidentally in one of the settings screens, you can customise what icons appear in the status bar and there is a toggle to switch both VoLTE/VoWiFi icons on or off in the status bar...
[OnePlus 8 Pro Questions & Answers] happiboi:
So looking at some reddit threads... in the US, when they have VoLTE enabled the status bar looks like the attached (minus the issue with the circled bit.. that's some other issue)
[OnePlus 8 Pro Questions & Answers] StelardActek:
Hm, never seen an icon like that in my current phone, and I'm pretty sure it makes VoLTE calls...
[OnePlus 8 Pro Questions & Answers] happiboi:
on my previous Huawei P30 pro - it would have the voLTE icon on as well
[OnePlus 8 Pro Questions & Answers] laurentg:
To share:

I have Oneplus 8 Pro IN2020.

To activate VOLTE and 5G in Thailand (but this applies to many countries as far as I am aware), I used these two posts and it works flawlessly.

They are not for the Oneplus 8 Pro directly but it works as well:

https://xdaforums.com/oneplus-5t/how-to/guide-volte-vowifi-german-carriers-t3817542

https://mt-tech.fi/en/modify-oneplus-7-pro-5g-8-and-8-pro-nr-lte-a-band-combos/

All the best,

LB
[OnePlus 8 Pro Questions & Answers] mrozu615:
Does anyone know if Volte will work with Optus in Australia? I'm currently using Huawei mate 10 and volte used to work flawlessly on Vodafone, but then I switched to Optus and they said the device is from Chinese market and it is not supported... This is so frustrating and only lack of volte can stop me from buying Oneplus 8
[OnePlus 8 Pro Questions & Answers] Joolz78:
For anyone interested I have working VoLTE and VoWIFI on the Boost Mobile network (Telstra). The normal PDC method does not work for telstra.

The only method I have found that works is using the steps in:

https://xdaforums.com/rog-phone-2/how-to/guide-enabling-volte-vowifi-v2-t4028073

I used the Telstra mbn in the AUNZ folder. Mine was performed on a Oneplus 6, but I assume it'll work on the Oneplus 8 as well.
[OnePlus 8 Pro Questions & Answers] happiboi:
Thanks for sharing - looks straight forward enough. This doesn't require phone to be rooted right, reading those instructions - ADB commands seem fairly straight forward but will they revert each time phone is restarted?
[OnePlus 8 Pro Questions & Answers] Joolz78:
I do have root but don't believe it is necessary. If you have previously tried the PDC method you should already have accessed the VoLTE and VoWIFI toggles and have access to DIAG mode which is necessary. Just choose DIAG rather than full-port switch in engineering mode.

The VoLTE and VoWIFI settings remain when the phone is restarted. They even stayed when I dirty flashed the phone.
[OnePlus 8 Pro Questions & Answers] happiboi:
Great news! I've followed that thread and now have successfully enabled VoLTE and VoWifi!!!!

Confirmed working, still have 5G too

I'll post up screenshots, steps later but happy to say it all works. VoWifi tested in aeroplane mode which definitely confirmed that was working.

Only got SIM1 VoLTE/VoWifi enabled though cos the command for second son erro the an error? The -s switch didn't seem to get recognized
[OnePlus 8 Pro Questions & Answers] sephstyler:
Any VF AU users tried with 8 / 8 Pro?

Previously 7 Pro user, worked before with just the toggles I believe (I did play around with QPST, but cant remember).

OS at the moment, just got an 8 Pro (IN2025), wont be home till COVID is a bit better where I am.
[OnePlus 8 Pro Questions & Answers] rickysidhu_:
Do you know if this will work with Telus in Canada? Or in other words, are these steps universal?
[OnePlus 8 Pro Questions & Answers] happiboi:
According to the source, it should be universal. The only difference is the MBN fiel you would select --> mbns-mi9t.zip\na\telus\commerci\ca\*.mbn instead of the one I used, which was for my country region.
[OnePlus 8 Pro Questions & Answers] rickysidhu_:
Awesome, thanks for the reply! Will try to give this a shot later today. Really hoping I get VoWiFi working after this:silly:

Update:

Got VoLTE to work flawlessly, however, no go for VoWiFi :( Contacted my carrier and they said they don't support WiFi Calling for devices that aren't on their "eligible" list. At least I have VoLTE working I guess!

Update:

Seems like I lose this configuration if I either restart, or restore the stock boot image/move to a different kernel. Still need to figure out exactly which it is. Unfortunate because my call quality degrades so much to the point where the other person has trouble hearing me. I'm not going to touch the boot image for a while and see if anything changes. Man I wish OnePlus just has all this stuff configured my default lol what a headache.
[OnePlus 8 Pro Questions & Answers] eraser215:
Thanks so much for your TL;DR version! I got VoLTE and VoWifi working successfully with my OnePlus 6 on Telstra. VoWifi took a little while to wake up but I have tested it successfully by making calls in aeroplane mode.

FWIW I also had to install the engineering mode APK to get *#801# working, as per the instructions here:

https://xdaforums.com/showpost.php?p=81132453&postcount=7
[OnePlus 8 Pro Questions & Answers] happiboi:
Ahh yes - i'm glad it all worked for you too!
[OnePlus 8 Pro Questions & Answers] Chigster:
**** outta luck on Boost with my 5T here (here from ozb yes)
[OnePlus 8 Pro Questions & Answers] Chigster:
Just curious, did you have to change the APN settings to get it to work with Boost or did you just follow the information in this forum?
[OnePlus 8 Pro Questions & Answers] Repetty:
I was wondering does successfully adding VoLTE and VoWiFi survive a reboot/restart?

I have read that the changes disappear after a simple restart (not software update) -could someone confirm what they've experienced

(oh yes and bloody OnePlus - just start selling in Australia already!!)
[OnePlus 8 Pro Questions & Answers] happiboi:
mine survives reboots/restarts - only thing it doesn't survive is OTA update.
[OnePlus 8 Pro Questions & Answers] Mattycee:
I have a post about RCS but wanted to know if anyone else is using RCS on Telstra? I had it working and then swapped sims into a Pixel 4 XL and now I cannot get it to connect and was hoping someone had some pointers, or at the very least could advise if they have RCS messaging working on their OnePlus?
[OnePlus 8 Pro Questions & Answers] happiboi:
Hi there,

I'm currently using OnePlus 8 Pro and have RCS connected & working on Telstra SIM. (screenshot attached)

noticed you mentioned Pixel XL 4 - similar issues on this support thread ? https://support.google.com/messages/thread/54042608?hl=en
[OnePlus 8 Pro Questions & Answers] Mattycee:
It could be something to do with that, but I am having issues with my OnePlus 8 now as well. The 5G, VoWifi & VoLTE are not sticking after a reboot for some reason and I am not too sure why that is. It only started happening today.
[OnePlus 8 Pro Questions & Answers] happiboi:
That's weird - I just rebooted mine to double check but it definitely sticks for me