yashsingh1/xdaforums huggingface dataset:
[ASUS ROG Phone II Guides, News, & Discussion] HomerSp:
I have received multiple updates (I'm on Android 10 beta), and I haven't had to re-run it yet. It is possible that they will send out an update that clears modemst1 and modemst2, in which case you would need to redo it. But I would say the risk of them doing that is very low, because there's just no reason for them to do that.

It sets a property - gsm.sim.show.enhanced4g - that's used, in addition to the perstist.vendor.dbg.* properties, to check if VoLTE should be forced-enabled. If neither the persist.vendor.dbg properties, nor the gsm.sim.show.enhanced4g property is set it will query the built-in CarrierServices app.

Rebooting will clear the gsm.sim.show.enhanced4g property as it's not persistent.
[ASUS ROG Phone II Guides, News, & Discussion] JazonX:
Can this new method survive a Factory Reset / Raw Flash?
[ASUS ROG Phone II Guides, News, & Discussion] HomerSp:
Should be fine I think (haven't actually tested it myself), yeah, as long as you don't clear modemst1 and modemst2. You will have to set those persist properties after a factory reset to force it to on though.
[ASUS ROG Phone II Guides, News, & Discussion] KevinAce:
Hi. I have T-Mobile and I tried the secret code mentioned without rooting my phone, unlocking the bootloader or anything. I can see VoLTE as an option turned on in my mobile settings and I was able to make a VoWiFi call. I was however unsuccessful making a VoLTE call as the signal dropped to 3G immediately.

Does this mean if I follow the full solution outlined that VoLTE will not work if it does not work with the secret code?

"There's a secret code you can use to force-enable it, but unfortunately it does not survive a reboot (not sure why ASUS didn't make it persistent).

Enter this in the dialler:

Code:

*#*#3642623344#*#*

The number will clear itself, and you shouldn't see any output if it succeeded."
[ASUS ROG Phone II Guides, News, & Discussion] stealthj:
If you follow the full solution, you will have working Vowifi and VoLTE
[ASUS ROG Phone II Guides, News, & Discussion] KevinAce:
Thanks. How do I tell which LTE bands are on my Tencent CN version of the device? Is there an app or a code I can type in to show all the bands supported by my version of the device?

Thank you all so much.

One more question: I have the US version of the device too with band 66. If it's likely already got the ww ROM on it, when rooting it, can I use the patch ww ROM over an existing WW ROM?
[ASUS ROG Phone II Guides, News, & Discussion] HomerSp:
You will need to write the mbn to get VoLTE; the mbn contains settings and such for it to work properly. That dialler code and the properties just force the system to enable VoLTE, but without the proper settings it won't work.

When rooted you can use Network Signal Guru to check the available bands.
[ASUS ROG Phone II Guides, News, & Discussion] suzook:
So you have both, the tencent version, and us version?? The tencent will ABSOLUTELY NOT have band 66. The Global version does. No way to enable extra bands on tencent.
[ASUS ROG Phone II Guides, News, & Discussion] KevinAce:
I just figured something out. The US version I have is the I001DC which has band 66

The tencent CN one is I001DA and looks to be lacking bands 12 and 66.
[ASUS ROG Phone II Guides, News, & Discussion] gabi.ailincai:
I've just gone through with the guide and have successfully enabled VoWiFi and VoLTE on Orange Romania. How can I buy you a beer, [MENTION=2266182]HomerSp[/MENTION] ?
[ASUS ROG Phone II Guides, News, & Discussion] KevinAce:
I figured it out so trying to delete my long post.
[ASUS ROG Phone II Guides, News, & Discussion] KevinAce:
Relock and UnRoot after completed?

It worked and thank you so much!!!

Can I "UnRoot" and keep VoLTE?

Can I "Relock" the bootloader and keep VoLTE?

Appreciate any assistance!

Thanks

Kevin
[ASUS ROG Phone II Guides, News, & Discussion] deltarz:
Does it work on SIM2 for anybody? It does not for me, only SIM1 and breaks if I move my SIM card to 2 then back to 1. I find you have to reflash it to get it to work again for some reason.

Is there a method to get it to work on SIM2? Only because on tencent, SIM2 has band28 enabled defaults.
[ASUS ROG Phone II Guides, News, & Discussion] dungnghien:
Do you think there is a way to hide the active theme without rooting?
[ASUS ROG Phone II Guides, News, & Discussion] HomerSp:
Great, glad to hear it's working! No beers needed (I don't actually drink beer), just happy to help out the community!

Yes, unrooting is fine. Locking the bootloader again requires a factory reset, which will remove the properties necessary for VoLTE to be enabled - so if you do this you will have to run the dialler cod that's mentioned in the guidee on each boot, because you need root to set those properties..

I've updated EfsTools and the guide to allow the second SIM slot to work. Simply grab EfsTools 0.10 modded 1.2 from the guide and run the new command under Step 4.
[ASUS ROG Phone II Guides, News, & Discussion] KevinAce:
Thanks. I'm slightly confused as when I bring up Magisk Manager or Network Signal Guru or Root Explorer, they are all telling me I no longer have Root access.

I finished everything last night and then I saw and downloaded the latest Dec build on Asus website and did a local install from putting it in the Root directory.

Could that have wiped my Root access?

My bootloader is still unlocked and all the VoLTE and VoWiFi goodness still works. Any thoughts and thank you.
[ASUS ROG Phone II Guides, News, & Discussion] HomerSp:
Yes, flashing the latest firmware will have removed root so you will have to reflash the magisk boot image (make sure it's for your current firmware build) if you want root again.
[ASUS ROG Phone II Guides, News, & Discussion] deltarz:
SIM2 Vo(x) works, b28 volte too.

Now I'm wondering what restrictions are on SIM2 as it appears to only detect 3g b5 and 4g b28? I will test a bit further....

Never mind, 4g bands 3,5,7 all detected.

WW hardware version looks to be a better buy with this much workarounds.
[ASUS ROG Phone II Guides, News, & Discussion] sweetfreeze:
Works great for me thanks! I just got the phone and within an hour was able to:

1. Unlock the bootloader

2. Update to latest firmware

3. Flash root boot image and install magisk

4. Use OP's DIAG guide

5. Use this VoLTE guide

Everything works! Thanks OP and to the rest of this phone's XDA community.
[ASUS ROG Phone II Guides, News, & Discussion] Rogger123:
I'm using AT&T, and I followed the guide and it works to get VoLTE on my device. But shortly after starting the phone up the first time with the SIM card, VoLTE gets disabled, assumedly from AT&T doing some provisioning. Should this be happening? I'm using WW-16.0631.1910.64, and I've tried using a few different MBNs, including the ASUS VivoVoWiFi_v5 one from the first guide. Does this sound like a purely MBN issue? I'm surprised to see that many folks had AT&T working on the first guide, because I followed that after this one and had the same experience where I'm shutdown after a bit of being VOLTE.
[ASUS ROG Phone II Guides, News, & Discussion] KevinAce:
Tried this on the US version and one difference I noticed right away is the fingerprint SW is not listed as WW or CN but as "US".

Followed all the steps as with my CN version (not needing to change software to WW as it had that) and the WiFi keeps turning itself off. You turn it on, it turns off... So I was not able to get to the final step of using the last 2 tools via WiFi with port 2500 open in firewall.

Anyone have any ideas what to do?
[ASUS ROG Phone II Guides, News, & Discussion] Doutendo:
EE Volte

Followed the guide which was simple and easy to follow. I used the MBN for EE and vowifi is working great. Volte is not working but says it's provisioned under the phone info. Any ideas what I'm missing?
[ASUS ROG Phone II Guides, News, & Discussion] Doutendo:
So after some testing I installed the Vivo MBN from the outdated guide and I get Volte straight away but do not getting any caller id. Anyone help me out with a MBN that I could try. So close to having my Rog phone 2 just the way it should have been from the factory
[ASUS ROG Phone II Guides, News, & Discussion] Zackhery:
Has anyone attempted this with Verizon? I dropped my note 9 and cracked the screen and was eye balling a Rog 2
[ASUS ROG Phone II Guides, News, & Discussion] thatruth132:
got it
[ASUS ROG Phone II Guides, News, & Discussion] ariffv2:
I dont have mbn files for Digi (malaysia). So i cant proceed to step 4. Can i skip it?
[ASUS ROG Phone II Guides, News, & Discussion] Tikerz:
The ATT MBN from this thread didn't work for me. I used the vivo MBN from the first thread and it now works. I'm on 64 and have the VoLTE icon. When making calls the VoLTE icon stays and doesn't go to H+.
[ASUS ROG Phone II Guides, News, & Discussion] Rogger123:
What APN are you using?

What APN are you using to get it to work? Does it seem to make a difference or have you tried other ones?

Thanks!
[ASUS ROG Phone II Guides, News, & Discussion] Tyblat:
Any chance this would work on the US version of the ROG 1? Or anything that might differ step wise?
[ASUS ROG Phone II Guides, News, & Discussion] HomerSp:
It probably should work, yes. As long as you can get diag mode, the steps should be identical. I know some people ran this to get working volte on the ZenFone 6.
[ASUS ROG Phone II Guides, News, & Discussion] Tyblat:
I tried putting in the 'code' in the dialer. Sure enough, it made the settings visible for VoLTE and WiFi calling, but even with them 'on' It didn't do anything, any calls I'd make would still drop right down to Edge. This is on a completely stock ROG I, though.

I'll attempt the process and see how it works. I have my Razer 2 and that has working VoLTE on T mobile, the same sim in the ROG, not so much. The only bands it was pulling off of for both phones was two or four around here I believe, which is NC (USA.)
[ASUS ROG Phone II Guides, News, & Discussion] VZTech:
Your still going to have to do the steps in this thread also.
[ASUS ROG Phone II Guides, News, & Discussion] ChronoReverse:
Followed the steps with no errors but even pushing the Telus mbn (also tried Vivo) doesn't give me volte for Koodo (subsidiary of Telus). I guess I need a real Koodo mbn (maybe from the Pixel 4). I wonder how these are extracted.
[ASUS ROG Phone II Guides, News, & Discussion] rogosteve:
After pushing the .mbn file I open pdc advanced tool and I see my phone on the same profile as before. No error on the commands while pushing the .mbn. Should it update in pdc? Ex. If I was on tm_commercial before and I pushed the ATT_Volte, whe I open PDC would it show ATT_Volte as active?
[ASUS ROG Phone II Guides, News, & Discussion] psycho2097:
I'm on Verizon as well and just considering getting the Rog 2. Any results to speak of? Else I can be the guinea pig.
[ASUS ROG Phone II Guides, News, & Discussion] 1aimbot:
I'm on verizon. Went through the steps and only got volte enabled(tried all the verizon files, but only the first one worked). Can make/recieve phone calls and send texts, but i cant recieve them. I dont think its an app setting. I tried 4 different ones and looked through settings and same outcome. The text message (SMS and MMS) goes out fine and gets recieved but my rog 2 never receives the replies sent to it.

Anyone have an idea? Im guessing sms does not work through volte service.....but then how would my messages be sent?
[ASUS ROG Phone II Guides, News, & Discussion] rogosteve:
Anyone?
[ASUS ROG Phone II Guides, News, & Discussion] Tikerz:
I’m using the ATT NXTGENPHONE APN.
[ASUS ROG Phone II Guides, News, & Discussion] linesync:
Anyone have this working on Bell/Virgin in Canada ?

Also if i try this and it does not work will the phone still have service as normal ?

Thanks.
[ASUS ROG Phone II Guides, News, & Discussion] rogosteve:
What does the below command do? Does it keep the new mbn from being overwritten in an ota update.

.......nv/item_files/mcfg/mcfg_autoselect_by_uim
[ASUS ROG Phone II Guides, News, & Discussion] PandaCat:
I'm having an issue where powershell opened in the efstools folder doesn't recognize efstools.exe as a command.

UPDATE: I figured it out. I will be activating the phone to see if it works now without missing calls or texts. THANK YOU!
[ASUS ROG Phone II Guides, News, & Discussion] ayman86:
Worked perfectly for tmobile! Thanks
[ASUS ROG Phone II Guides, News, & Discussion] stealthj:
Thanks so much for this.

No more missed VoLTE calls. HD voice. On both Sim cards.

Wifi Calling/Sms Over Wifi also working perfectly

T-Mobile USA
[ASUS ROG Phone II Guides, News, & Discussion] mcs117:
volte works for outgoing only. sms and mms works for outgoing. Replies do not work. Verizon just doesn't know what it is.

Trying to get verizon to re-evaluate the phone on what capabilities it can do. Wish me luck.
[ASUS ROG Phone II Guides, News, & Discussion] AdamxDesolator:
Anyone tried this on Mint Mobile (Tmobile MVNO) on Android 10? Thanks :)
[ASUS ROG Phone II Guides, News, & Discussion] Cammarratta:
If I could remember how to do this I would test it on Android 10 Tmo.

For some reason I'm blanking on how to get the adb commands to work
[ASUS ROG Phone II Guides, News, & Discussion] Doutendo:
Mine was working fine but now I've updated to android 10 and now its stopped. Says it's provisioned but greyed out. Any ideas of what to try?
[ASUS ROG Phone II Guides, News, & Discussion] Tikerz:
You'll have to do it over again as the Android 10 update likely overwrote the settings.
[ASUS ROG Phone II Guides, News, & Discussion] Cammarratta:
How do we input the commands into adb? I keep getting an error saying that setprop isn't a valid input. This is in Android 10
[ASUS ROG Phone II Guides, News, & Discussion] stealthj:
I just did this a few days ago on android 10 after I unlocked and rooted.

I don't remember anything about using ADB though...
[ASUS ROG Phone II Guides, News, & Discussion] Cammarratta:
Did you just use the app? I feel like I'm forgetting steps here but I've followed the guide but nothing is working on my end.
[ASUS ROG Phone II Guides, News, & Discussion] Doutendo:
Re done the whole process and now working great again. For anyone on EE I had to install the Vivo MBN from the old guide as was the only one to get Volte and VoWifi working and then install the EE one after as the Vivo one wouldn't give me any caller id. EE one is missing something to get it to work but works fine installed one after the other
[ASUS ROG Phone II Guides, News, & Discussion] Rezrex:
works for cricket, USA. Had to leave my sim card in my cricket branded phone until it got volte. Gotta love carrier provisioning lol.

Edit: used Vivo mbn. Android 10 stable release.
[ASUS ROG Phone II Guides, News, & Discussion] mcs117:
Update: call can be received now on Verizon network. But I realized mms setting in apn are not configured correctly.
[ASUS ROG Phone II Guides, News, & Discussion] twalls16:
I also have Verizon. The Verizon cdmaless mbn seemed to be the only one that worked. Outgoing calls work, Incoming calls work, LTE data works, sending texts work. The only thing that DOESN'T work is incoming text messages. I can send messages but can't receive them. When I pop my SIM back into my old ZTE Axon 7, the messages start rolling in. The only difference I've noticed between my Axon and the ROG, is when I go into the phone information menu (*#*#4636#*#*), and run the ping test, IPV6 returns as Failed. Also the APN's are different. I've exhausted every option I could possibly think of. Verizon just says it's an compatibility issue. Is it possible that the Verizon cdmaless mbn isn't configured correctly for sms? Or is there a way to edit the APN?
[ASUS ROG Phone II Guides, News, & Discussion] Seijin:
I saw someone already asked but I'd like to ask as well - if anyone got this working on Mint Mobile?
[ASUS ROG Phone II Guides, News, & Discussion] vagenrider:
[MENTION=2266182]HomerSp[/MENTION] how can i run this adb shell lines on the first page?
[ASUS ROG Phone II Guides, News, & Discussion] PriNcEFuL:
works with me thanks
[ASUS ROG Phone II Guides, News, & Discussion] AlanTham:
A10 out any new guide on volte coming ?
[ASUS ROG Phone II Guides, News, & Discussion] sesz:
No new guide needed, follow the instructions in the op to get volte working on A10.
[ASUS ROG Phone II Guides, News, & Discussion] ariffv2:
What is i wrong use mbn. Is it effect my coverage ory emei will be gone?
[ASUS ROG Phone II Guides, News, & Discussion] mavarick22:
Why would I have volte with the att network but not wifi? Wifi rings for one second and then drops.

How do I fix this? Different mbn?
[ASUS ROG Phone II Guides, News, & Discussion] vagenrider:
this guide didnt help me,confused many times and i leave it after 3 hours.
[ASUS ROG Phone II Guides, News, & Discussion] KevinAce:
-s switch not working with EFS

Hi - Since upgrading to Android 10, I had to re-do my phone as everyone likely did. When running the 2 EFS commands, the second command errors out stating there is no "-s" switch.

Here is the command:

EfsTools.exe writeFile -i mcfg_autoselect_by_uim -o /nv/item_files/mcfg/mcfg_autoselect_by_uim -s 1

Here is the error:

C:\efs>EfsTools.exe writeFile -i mcfg_autoselect_by_uim -o /nv/item_files/mcfg/mcfg_autoselect_by_uim -s 1

EfsTools 0.11.0.11

Copyright (c) JohnBel 2019 (http://johnbel.github.io/)

ERROR(S):

Option 's' is unknown.

-i, --inComputerFilePath Required. Computer file path

-o, --outEfsFilePath Required. Output EFS path

-n, --dontCreate (Default: false) Don't create EFS file if its not exist

-t, --item (Default: false) Create Item file

--help Display this help screen.

--version Display version information.

Let me know if you have any ideas as I assume this is to get the 2nd SIM to work?

Thanks

Kevin
[ASUS ROG Phone II Guides, News, & Discussion] alen1124:
Homer...I JUST WANT TO SAY YOU ARE A LEGEND!!! (Kevin you're still OK man lol)

I just got the phone a few days ago and this was a deal breaker for me. I was going to return it before I saw this. A few hours of tinkering and it is working! Thank you so much man.
[ASUS ROG Phone II Guides, News, & Discussion] KevinAce:
Oh no - This was all Homer. Look at the first post in the thread.. He is the legend!!
[ASUS ROG Phone II Guides, News, & Discussion] alen1124:
Homer the LEGEND! You are amazing my dude. Really amazing work.
[ASUS ROG Phone II Guides, News, & Discussion] blynnk:
I had this exact issue on Razer Phone 2. You have to call verizon and talk to a technical rep. Just ask them to configure your phone for CDMA less SMS and they will fix it from their end. Your messages from the last 3 days should start flowing in while you are on the phone with them.
[ASUS ROG Phone II Guides, News, & Discussion] VZTech:
Delete
[ASUS ROG Phone II Guides, News, & Discussion] ariffv2:
Please help how to reset default original mbn as well
[ASUS ROG Phone II Guides, News, & Discussion] KevinAce:
Second SIM

Did you get the 2nd EFS command to work with the "-s" in the command to update SIM 2? Or did it error out for you too?
[ASUS ROG Phone II Guides, News, & Discussion] alen1124:
I am actually staying on Android 9 for now. So no haven't had that issue.
[ASUS ROG Phone II Guides, News, & Discussion] ariffv2:
I facing issue my network always on off like on off airplane mode during my temperature become hot. Please assist on how to reset default as well original mbn.
[ASUS ROG Phone II Guides, News, & Discussion] wreid23:
---------- Post added at 11:25 PM ---------- Previous post was at 11:25 PM ----------

[/COLOR]

Zenfone 6 User Here

Add me to the USA TMO Users this works for can confirm and guide was simple and straight forward THANKS A MILLION!!!!

Can't Believe this finally works
[ASUS ROG Phone II Guides, News, & Discussion] sedp23:
Is there a YouTube video on all this somewhere ? I don't have access to a computer at the moment can this be done without one?
[ASUS ROG Phone II Guides, News, & Discussion] VZTech:
Follow the directions. Super easy. If you have an issue following the step, by steps, you probably shouldn't do it.
[ASUS ROG Phone II Guides, News, & Discussion] ariffv2:
I need original mbn. Please assist me.
[ASUS ROG Phone II Guides, News, & Discussion] stealthj:
I lose RCS ability after this.

Is there an MBN that works with TMO US voWIFI and LTE and also RCS?
[ASUS ROG Phone II Guides, News, & Discussion] VZTech:
I used the provided tmo mbn, and rcs works. Try clearing data on messages app, and resetting it up. Give it an hour or so to connect to rcs.
[ASUS ROG Phone II Guides, News, & Discussion] stealthj:
I've tried everything. Clearing the carrier services, messing with the dual 4g toggle. Lasts through root, but after enabling Vlte, it goes away for some reason. I'm glad to know yours works and hopefully I could mess with it to get it working again soon
[ASUS ROG Phone II Guides, News, & Discussion] VZTech:
Here it is
[ASUS ROG Phone II Guides, News, & Discussion] stealthj:
Yeah that's what it looks like when its connected

For some reason it doesn't work whatever I do. I have my primary sim set to SIM 1 for al data and calls/messages
[ASUS ROG Phone II Guides, News, & Discussion] VZTech:
I would try redownloading all the files, and redo it. One time I did it, I had to do it twice for some reason.
[ASUS ROG Phone II Guides, News, & Discussion] stealthj:
I did that but It might not have to do with this I'm thinking
[ASUS ROG Phone II Guides, News, & Discussion] ariffv2:
Anyone tried this command without corrupt IMEI number?
[ASUS ROG Phone II Guides, News, & Discussion] moudy:
I followed this post and did the step by step without errors. Last thing i remember is to flash the mbm so i did but voltw or vowifi never worked. MetroPCS on T-Mobile but its essentially T-Mobile. Would someone explain to me what i did wrong?

Rooted on android 9 original ww phone. Latest update for android 9 version. Thanks

P. S. When making sure it works step either thru volte enabler or the phone dialer it doesn't show volte or vowifi
[ASUS ROG Phone II Guides, News, & Discussion] VZTech:
Redo it. Sometimes for me it takes a second time for some reason.
[ASUS ROG Phone II Guides, News, & Discussion] moudy:
So i redid everything with no errors and even did it for second sim. And ran the process 2 times but still nothing. I have MetroPCS by TMobile.

Few other things id like to point out. In the beginning to make sure my set prop is configured correctly i did so. I can never see the volte or vowifi to ever appear.

Im completely lost now if someone could explain to me what the problem is please help me. Thank you

UPDATE!!

Also i just noticed my device is being identified as an Android device/ android composite ADB interface

UPDATE!!!

Corrected the adb issue and now it sees as a Qualcomm USB composite device 902D but still no volte or vowifi
[ASUS ROG Phone II Guides, News, & Discussion] enkryptik:
Amazing!!! On T-Mobile and have Zenfone 6 and missed wifi calling and volte. Followed guide and it worked perfectly the first time.

Thank you so much for your hard work and effort. Feel like I have a brand new phone. Was getting extremely irritated without those two features.
[ASUS ROG Phone II Guides, News, & Discussion] shadavis08:
With the new firmware voice over Wi-Fi and voice over LTE are on by default but still not connecting to T-Mobile's Network how would I go about doing that now?

---------- Post added at 01:26 PM ---------- Previous post was at 01:25 PM ----------

Couldn't someone make a magisk module for this?
[ASUS ROG Phone II Guides, News, & Discussion] stealthj:
Possible to upload the whole thing? Looking for the tmo MBN from that pixel. thanks!

EDIT: nevermind, found it online. Thanks! I attached the pixel 4 mbn for tmo US. my RCS still does not function.
[ASUS ROG Phone II Guides, News, & Discussion] VZTech:
I think TMO is up to something. I used Linage for a few days, came back to stock, now RCS is broke. I am on TMO too.
[ASUS ROG Phone II Guides, News, & Discussion] The_Walking_Playground:
Hi,

Do you have the latest version of Carrier Services installed? I noticed Chat features were disabled for me until I updated it, and then when I went into Messages, it asked me if I wanted to enable Chat.

TWP