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(ROOT) Enable T-mobile voLTE on Rog Phone 3

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Sugaaa

Member
Sep 15, 2020
29
4
https://www.xda-developers.com/how-to-enable-t-mobile-volte-vowifi-on-asus-smartphones-root/

Click the link and follow the guide. That should work on the international one(model a). Maybe someone can try it on the tencent version(model b) flashed with the Global rom and try the guide. This should enable you to activate it on T-mobile after they stated that a phone needs to be compatible with voLTE in order to activate and use it on T-mobile that started on August 27th. I don't have the phone to test so if it worked for you, please mention what version of the phone you have here for potential buyers. Thanks.
 
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bs3pro

Senior Member
Jul 24, 2020
338
87
https://www.xda-developers.com/how-to-enable-t-mobile-volte-vowifi-on-asus-smartphones-root/

Click the link and follow the guide. That should work on the international one(model a). Maybe someone can try it on the tencent version(model b) flashed with the Global rom and try the guide. This should enable you to activate it on T-mobile after they stated that a phone needs to be compatible with voLTE in order to activate and use it on T-mobile that started on August 27th. I don't have the phone to test so if it worked for you, please mention what version of the phone you have here for potential buyers. Thanks.

Root is not needed, just the build.prop edits. I made a how to, but got spammed and flamed, so deleted it. It will work on both versions with ww sw.
 

TehAdventurer

New member
Sep 1, 2020
3
0
Root is not needed, just the build.prop edits. I made a how to, but got spammed and flamed, so deleted it. It will work on both versions with ww sw.

So if one were to pick up an A version and use this method and then down the line there is an OTA update for volte in the US would there be a conflict?
 

Sugaaa

Member
Sep 15, 2020
29
4
Root is not needed, just the build.prop edits. I made a how to, but got spammed and flamed, so deleted it. It will work on both versions with ww sw.
Thats interesting. The guide mentions that you need root. Also, how compatible is model b tencent version with T-Mobile? They're missing a lot of bands. For 5g, it only has band 41 2.5GHz which hasn't even been fully released yet. It's missing band 71 600 MHz and the other 260 and 261 bands for 5G high speed mmwave.
For 4G LTE, it's missing bands 66, 12, and 71.
 

Sugaaa

Member
Sep 15, 2020
29
4
So if one were to pick up an A version and use this method and then down the line there is an OTA update for volte in the US would there be a conflict?
If i had to take an educated guess, the update would overwrite the previous settings. However, if it messes it up, we could probably reflash the stock rom and update it normally or flash an updated stock rom.
 
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bs3pro

Senior Member
Jul 24, 2020
338
87
So if one were to pick up an A version and use this method and then down the line there is an OTA update for volte in the US would there be a conflict?

Thats interesting. The guide mentions that you need root. Also, how compatible is model b tencent version with T-Mobile? They're missing a lot of bands. For 5g, it only has band 41 2.5GHz which hasn't even been fully released yet. It's missing band 71 600 MHz and the other 260 and 261 bands for 5G high speed mmwave.
For 4G LTE, it's missing bands 66, 12, and 71.

Ota won't cause a conflict. I'm using version a on TMO, and it works better than my s20ultra.
 

Sugaaa

Member
Sep 15, 2020
29
4
Ota won't cause a conflict. I'm using version a on TMO, and it works better than my s20ultra.

Where did you get model a? Hopefully somewhere where it's not too expensive. I'm looking for 12gb ram 256gb. At the same time, I want to wait for u.s version release that should come out at the end of this month, maybe they might include mmwave bands for 5g and more compatible 4g lte bands at a good price.
 

bs3pro

Senior Member
Jul 24, 2020
338
87
Where did you get model a? Hopefully somewhere where it's not too expensive. I'm looking for 12gb ram 256gb. At the same time, I want to wait for u.s version release that should come out at the end of this month, maybe they might include mmwave bands for 5g and more compatible 4g lte bands at a good price.

No mw bands on rog3, even "us" version. You will have to buy the 12gb 512 for version a. Big bucks, $1k. Waiting for us version is a waste of time. I got my a version a month ago on ebay.
 

Sugaaa

Member
Sep 15, 2020
29
4
No mw bands on rog3, even "us" version. You will have to buy the 12gb 512 for version a. Big bucks, $1k. Waiting for us version is a waste of time. I got my a version a month ago on ebay.

Ebay is full of the Chinese ones now with the rom. I've seen the model a on aliexpress and i don't have to pay tax but the wait time is going to be crap for it.
The only sure way to know its the a version is the prism box and free cooler inside right? Also do you have a link to check the 5g and 4g lte bands on the model a or is it the same as the u.s version model a? I can't find accurate bands anywhere for the international.

The only thing that worries me with getting the international a version is t-mobile coming out with a whitelist like at&t and not officially supporting the rog 3 which would make it useless on their network.
 

bs3pro

Senior Member
Jul 24, 2020
338
87
Ebay is full of the Chinese ones now with the rom. I've seen the model a on aliexpress and i don't have to pay tax but the wait time is going to be crap for it.
The only sure way to know its the a version is the prism box and free cooler inside right? Also do you have a link to check the 5g and 4g lte bands on the model a or is it the same as the u.s version model a? I can't find accurate bands anywhere for the international.

The only thing that worries me with getting the international a version is t-mobile coming out with a whitelist like at&t and not officially supporting the rog 3 which would make it useless on their network.
TMO has no white list for volte/wifi like att, and never will. Gotta buy the prism box, yes. And all version A's have same exact bands. I get great service on my rog3, even sa5g now that TMO enabled it. Btw, vowifi works too.
 
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XxDMDxX

New member
May 31, 2017
1
0
Diagnostic Mode

Root is not needed, just the build.prop edits. I made a how to, but got spammed and flamed, so deleted it. It will work on both versions with ww sw.

What exactly are the build.prop edits? I failed to enter diagnostic mode by both usb and remote methods. I have dowloaded the QPST config, drivers, and the asus volte app as suggested.
 

bindassever

Member
Mar 1, 2015
32
3
It worked with the build.prop edits, but the newest update has enabled volte and wifi calling. No edits needed.
Hi,
Any idea where I can find the details about this build.prop edits. I am on Telstra Australia. I tried the efstools method and it only shows critical error bad command. Both on cable and on remote.
Thank You
 

patonovich

Member
May 10, 2014
11
0
OnePlus 8T
Root is not needed, just the build.prop edits. I made a how to, but got spammed and flamed, so deleted it. It will work on both versions with ww sw.
How about you can send me a private message since I want to know how to activate the volte without being root, I would appreciate it very much, excuse the English I use Google translator
 

patonovich

Member
May 10, 2014
11
0
OnePlus 8T
Root is not needed, just the build.prop edits. I made a how to, but got spammed and flamed, so deleted it. It will work on both versions with ww sw.
Hi can you send me a private message since I want to know how to activate the volte without being root, I would appreciate it very much, excuse the English I use Google translator
 
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