Enable VoLTE for Pixel 3 for other countries?

[anton2dan]

Hi,

Is it possible to modify your tool in order to enable VoLTE for Pixel 3 for another country/carrier (Vodafone in Romania)?
I have the .mbn files for it.

Many thanks.

[nooriro]

1. Download volte-kr-crosshatch-v1.03-20200214.zip and unzip files.
2. Remove Korea2 folder in mbn/crosshatch/mcfg_sw/generic.
3. Create Romania/Vodafone/Commercial folder in mbn/crosshatch/mcfg_sw/generic.
4. Copy your mcfg_sw.mbn file into mbn/crosshatch/mcfg_sw/generic/Romania/Vodafone/Commercial.
5. Replace
   

   volte-kr-crosshatch/install.sh

   Lines 177 to 181 in 602003a

   	MBN_FILES="
   	mcfg_sw/generic/Korea2/SKT/Commercial/mcfg_sw.mbn
   	mcfg_sw/generic/Korea2/KT/Commercial/mcfg_sw.mbn
   	mcfg_sw/generic/Korea2/LGU/Commercial/mcfg_sw.mbn
   	"

   with

       MBN_FILES="
         mcfg_sw/generic/Romania/Vodafone/Commercial/mcfg_sw.mbn
       "
   

   in install.sh.
6. Re-zip files and test it.

You may need to flash the old radio to make VoLTE work on your carrier.

[anton2dan]

Thank you. Will try later today or tomorrow.

Will this work also on Android 11 Beta 2.5?
Also, will this still work when updating to a new version via OTA? I suppose that if I factory reset, I will need to do it again, but I'm not sure about OTA.

[anton2dan]

I've tried and it doesn't work.

I also flashed the "180917" radio and several variants of the .mbn file, before and after flashing the radio file.
VoLTE does work on another phone using my SIM card, so it's probably something I'm doing wrong.

The .mbn file I used was in the original .modem file in a path like this: "\system\vendor\mbn\mcfg\configs\mcfg_sw\generic\eu\vodafone\commerci\romania\mcfg_sw.mbn" (the path doesn't contain the "volte" string). I also tried a .mbn file from another country from EU, but still no go (\system\vendor\mbn\mcfg\configs\mcfg_sw\generic\eu\vodafone\volte\germany\mcfg_sw.mbn)...

Any more ideas?

Thank you.

[anton2dan]

Maybe Vodafone Romania doesn't use that .mbn file, but a "generic" one?

[nooriro]

Will this work also on Android 11 Beta 2.5?

Yes. Confirmed on my Pixel 3 XL.

Also, will this still work when updating to a new version via OTA? I suppose that if I factory reset, I will need to do it again, but I'm not sure about OTA.

If the MCFG version changes in the new build of ROM, you will have to enable VoLTE again.
You can check the current MCFG version using the following command in Android shell.

getprop persist.vendor.radio.cnv.ver_info

[nooriro]

I've tried and it doesn't work.

I also flashed the "180917" radio and several variants of the .mbn file, before and after flashing the radio file.
VoLTE does work on another phone using my SIM card, so it's probably something I'm doing wrong.

The .mbn file I used was in the original .modem file in a path like this: "\system\vendor\mbn\mcfg\configs\mcfg_sw\generic\eu\vodafone\commerci\romania\mcfg_sw.mbn" (the path doesn't contain the "volte" string). I also tried a .mbn file from another country from EU, but still no go (\system\vendor\mbn\mcfg\configs\mcfg_sw\generic\eu\vodafone\volte\germany\mcfg_sw.mbn)...

Any more ideas?

Thank you.

What devices did you extract the mcfg_sw.mbn files from?

[anton2dan]

From these ROMs:

miui_POCOF1Global_V10.3.4.0.PEJMIXM_13b169ae13_9.0.zip (Poco F1)
aura-p-global-3110.zip (Razer Phone 2)
xiaomi.eu_multi_MI8_20.7.30_v12-10.zip (Mi 8)

All snapdragon 845.

[nooriro]

Do those phones (Pocophone F1, Razer Phone 2, Mi 8) support VoLTE on Vodafone network in Romania?

[anton2dan]

They don't officially.

But, I've tried it on Mi8 for example and it works.

How do I know which .mbn file is by default used by my network?

[nooriro]

How do I know which .mbn file is by default used by my network?

Use QPST EFS Explorer.
See the Banner field in the dialog that pops up when you launch EFS Explorer.