Here is some screenshots of 5G reception, VoLTE icon, VoWiFi icon & VoWiFi Calling while in aeroplane mode to confirm all these things are working!
https://imgur.com/a/tau5wyX
So what did I do? All credits go to this
guy on XDA to get VoLTE & VoWiFi working
For the TL;DR version, I did what I mentioned previously to get 5G going here:
https://forums.oneplus.com/threads/...pro-in-australia.1225092/page-2#post-21673760
https://forums.oneplus.com/threads/...pro-in-australia.1225092/page-3#post-21717398
Then to get VoLTE & VoWiFi working download these files:
EFS zip -
https://drive.google.com/open?id=1PiVhB35MPx19sxqxQ4svgOvPXL1dxobt
MBNs zip -
https://drive.google.com/open?id=1v8V281EkYGI_C1KeMqVni8L2qjQLdx5P
EfsTools 0.10 modded 1.2 -
https://github.com/HomerSp/EfsTools...modded-1.2/EfsTools-0.10-modded-1.2-win32.zip
EfsTools 0.10 modded 1.1 -
https://github.com/HomerSp/EfsTools...modded-1.1/EfsTools-0.10-modded-1.1-win32.zip
The reason I've linked both modded 1.1 & 1.2 is because 1.2 is the latest version and supports activation of 2nd SIM slot (but it errors for me so I used the modded 1.1 version but that only does SIM slot 1).
So steps:
- Enable the VoLTE/VoWiFi toggles first:
- Download the OnePlus Log Kit app’s APK from >
https://downloadmirror.co/1MW9/com.oem.oemlogkit_1.0-1.apk
-Install the OnePlus Log Kit APK
- Open dialer, type in *#800# (If this doesn't do anything, just google search "Oneplus engineer mode apk", download and install it. Then retry)
- Click 'Enter' on the warning
- Select 'oneplus Logkit'
- Scroll down & select 'Function Switch'
- tick the VoLTE & VoWiFi switch options
- Then reboot.
- when your phone comes back after restart, in Settings > Wifi & network > SIM & network > SIM1 (and SIM2) > you should now see the 'Enhanced communications' area have the option to toggle on VoLTE/VoWiFi
Onto the actual making VoLTE/VoWiFi work:
- Unzip EfsTools into a directory
- Open command window on PC & navigate to the directory created in above step
- On your phone, go to dialer, type in *#801# - enter into it via 'engineer mode'
- Select "Rndis, diag switch" - ON (last time we selected "full port switch on")
- Then in the command window, you should be able to test connection to EFStools by typing "EfsTools.exe efsInfo"
- This should give some info & not any errors (mine was like 2 lines of information)
- Then the real fun begins.
- Extract the efs.zip from above download into the same directory as the EFStools (make sure the mcfg_autoselect_by_uim file is there - yes it's 0 bytes) and then run 2 commands:
- EfsTools.exe writeFile -i mcfg_autoselect_by_uim -o /nv/item_files/mcfg/mcfg_autoselect_by_uim
- EfsTools.exe writeFile -i mcfg_autoselect_by_uim -o /nv/item_files/mcfg/mcfg_autoselect_by_uim -s 1 (this one I couldn't get working - it's for SIM slot 2 & only works if usinf modded 1.2 version)
- should see 0 errors
- then open the MBNs zip & look for your carrier file. Ours are \aunz\<your carrier - e.g. mine is Telstra>\commerci\mcfg_sw.mbn
- copy this mbn file to the same dir as the EFStools, then run 2 commands:
- EfsTools.exe uploadDirectory -i mcfg_sw.mbn -o / -v
- EfsTools.exe uploadDirectory -i mcfg_sw.mbn -o / -s 1 (again this one I couldn't get working - it's for SIM slot 2 & only works if usinf modded 1.2 version)
- If it worked your screen should spew out a load of output but no errors.
- Reboot your phone & if you already enabled the switches from my above mentioned post, you should see the VoLTE/VoWiFi icons like in the screenshots linked above.
Seems like a lot but that's literally step by step explanation & takes roughly 5-10 mins to do slowly.
Happy days - 5G, VoLTE & VoWiFi all working on our OnePlus 8 Pro =)
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