Database Develop

[Q] LTE option missing in network selection

Hello modders,
I am considering buying the Xperia Z because I really like the device and software.
However after my first hands-on experience, I have discovered that the c6603 model, sold by our carrier (T-Mobile CZ), seems to have LTE disabled. Although the service menu does show all the supported LTE bands, when I go to Settings-Mobile networks and try to change the enabled networks, only the following options are available:
- WCDMA only
- GSM only
- WCDMA/GSM mode
The question remains, how this is controlled and what can be done to enable the search and support for LTE networks.
Is this stored somewhere in some carrier settings file? Is it carrier specific, so that with some operators, this is enabled automatically, for others it's disabled? Can we change it somehow?
I am not feeling quite well about these options being disabled per-carrier.
Thanks.

I think flashing unbranded firmware will work for you.
Sent from my C6602 using xda premium

I found in the UK, the option was missing on my UK Phones 4U firmware (350).
I thought it was some mods initially, but after applying the Greece FTF unbranded update (434), i got it back, even whilst running the same mods.
I flashed the UK 434 FTF update, and it's missing again, with the same mods.
These are only stock mods, status bar menu icons, reboot mod.
I will re flash the Greece Unbranded FTF and confirm if it's still missing, if it is not missing, for some reason, the UK unbranded FTF's (350 and 434) have it missing.

I flashed the .434 Nordic ftf and the LTE option is there. It wasn't on the original 3 rom.
I can't notice any difference at all that its a Nordic ftf and not a uk one, so I'll stick with this.

if LTE option is missing, it's only the option concealed but LTE is still there.
the culprit may be /vendor/overlay/com.android.phone-res.apk. try delete it after rooting.
otherwise, just ignore it and dial *#*#4636#*#* to enter what mode and you can see LTE options there.

zajDee said:
Hello modders,
I am considering buying the Xperia Z because I really like the device and software.
However after my first hands-on experience, I have discovered that the c6603 model, sold by our carrier (T-Mobile CZ), seems to have LTE disabled. Although the service menu does show all the supported LTE bands, when I go to Settings-Mobile networks and try to change the enabled networks, only the following options are available:
- WCDMA only
- GSM only
- WCDMA/GSM mode
The question remains, how this is controlled and what can be done to enable the search and support for LTE networks.
Is this stored somewhere in some carrier settings file? Is it carrier specific, so that with some operators, this is enabled automatically, for others it's disabled? Can we change it somehow?
I am not feeling quite well about these options being disabled per-carrier.
Thanks.
Click to expand...
Click to collapse
This is controlled by your vendor's customisation of the ROM, I am guessing if they have removed LTE, then they do not support it. Therefore not sure why you would want to add it back, because you will not be able to use it. Because once your vendor supports LTE, I am certain they will send you out an update.
My phone has LTE, my provider has LTE. But I had no LTE on my phone, until I changed the plan I was on. And I couldn't force that on, because the vendor blocked that.
In addition as stated here any generic ROM should give you the phone/ROM in all it's glory, provided your vendor has LTE

Did you choose the correct setting in mobile network

spida_singh said:
I found in the UK, the option was missing on my UK Phones 4U firmware (350).
I thought it was some mods initially, but after applying the Greece FTF unbranded update (434), i got it back, even whilst running the same mods.
I flashed the UK 434 FTF update, and it's missing again, with the same mods.
These are only stock mods, status bar menu icons, reboot mod.
I will re flash the Greece Unbranded FTF and confirm if it's still missing, if it is not missing, for some reason, the UK unbranded FTF's (350 and 434) have it missing.
Click to expand...
Click to collapse
I bought a Phones4U unbranded XZ a few days ago, with a T-Mob contract, and it DOES have the option, it had on when I was on 350 and it still has it now on 434. Perhaps it's related to the APN settings that the carrier sends you OTA? Obviously T-Mob is part of EE which has 4G so that could have done something.
I don't understand why your XZ doesn't have the settings though.

Are you sure you have the Z supporting LTE? There is a LTE and non LTE version on sale.
Sent from my Xperia Z using xda premium

alias_neo said:
I bought a Phones4U unbranded XZ a few days ago, with a T-Mob contract, and it DOES have the option, it had on when I was on 350 and it still has it now on 434. Perhaps it's related to the APN settings that the carrier sends you OTA? Obviously T-Mob is part of EE which has 4G so that could have done something.
I don't understand why your XZ doesn't have the settings though.
Click to expand...
Click to collapse
This was my next question, is it possible that the UK firmware reads the SIM card first and then 'knows' wether your current network is able to run LTE / 4G, if it's not, it only allows you to select the most appropriate setting, in my case GSM / WCDMA
Im on o2, not 4G, but the option was still selectable on my old Xperia V, and the Greece Unbranded Xperia Z FTF.
Have you tried a non 4G SIM / network in your phone to see if you get the option or not? Or could you...just to rule this out? If it is most likely APN related, then am not fussed, as soon as O2 has 4G, i should be able to utilize it
Cheers

spida_singh said:
This was my next question, is it possible that the UK firmware reads the SIM card first and then 'knows' wether your current network is able to run LTE / 4G, if it's not, it only allows you to select the most appropriate setting, in my case GSM / WCDMA
Im on o2, not 4G, but the option was still selectable on my old Xperia V, and the Greece Unbranded Xperia Z FTF.
Have you tried a non 4G ISM / network in your phone to see if you get the option or not? Or could you...just to rule this out?
Cheers
Click to expand...
Click to collapse
I havn't but I'll give it a go for you after work with my Vodafone SIM and let you know.

spida_singh said:
This was my next question, is it possible that the UK firmware reads the SIM card first and then 'knows' wether your current network is able to run LTE / 4G, if it's not, it only allows you to select the most appropriate setting, in my case GSM / WCDMA
Im on o2, not 4G, but the option was still selectable on my old Xperia V, and the Greece Unbranded Xperia Z FTF.
Have you tried a non 4G SIM / network in your phone to see if you get the option or not? Or could you...just to rule this out? If it is most likely APN related, then am not fussed, as soon as O2 has 4G, i should be able to utilize it
Cheers
Click to expand...
Click to collapse
Again only if your provider has locked this part out of the sim card, pretty crap if they did because this can be easily be controlled from within the network. Because when you scan it should show all networks around even ones you can't connect to, if not they have locked certain bands on the sim

Wifi Calling

Hello All!
Im new at this topic, because some weeks ago, i bought a z3 play phone, i coming from a moto maxx (quark) from motorola..
I want to know how i can enable vowifi/ wifi calling for use with my z3 play, because i cant found this option on the menu, when i search it, only appears the option for "enhanced 4G mode" that include Volte calls (volte works well and wifi calling works in other phones but with my z3 play no) but i want use with wifi calling, currently im using android pie, and the model is, XT1929-6, opencl channel.
can some one help me with this?, could be useful change to other stock rom?, opencl -> retla, or retail?, the current software compilation is: PPWS29.131-27-1-11
Thanks you a lot!

Up

What mobile carrier do you have? That's the determining factor since it works just fine with some carriers as is

kingstu said:
What mobile carrier do you have? That's the determining factor since it works just fine with some carriers as is
Click to expand...
Click to collapse
I have bought this phone on carrier called claro, if I install lineage or resurrection remix could be use wifi calling or volte ?

I mean what carrier are you using it on? If you using Claro Argentina then perhaps it should work. If you're trying to use it on another ClaroNetwork I'm not sure. you need to specify what network and what country that you're going to use it on as well as what network and what country the model is. For Verizon they only support Wi-Fi calling on models they sell. The same with AT&T.

kingstu said:
I mean what carrier are you using it on? If you using Claro Argentina then perhaps it should work. If you're trying to use it on another ClaroNetwork I'm not sure. you need to specify what network and what country that you're going to use it on as well as what network and what country the model is. For Verizon they only support Wi-Fi calling on models they sell. The same with AT&T.
Click to expand...
Click to collapse
My carrier is claro chile, in my case. When I use other simcard(with volte is working on other phone) in this phone. Not works, but if I use the. Claro simcard only appears volte.
I want to know if flash the resurrection remix. For example, could be possible use both services. But I’m not sure if this work or not. Up today I don’t know for someone that are using resurrection that says if volte / vowifi works in this custom rom.

VoLTE and Wifi Calling support

Would like to know if these features are supported for the major US carriers. That's the only thing holding me back from pre-ordering.

gordec said:
Would like to know if these features are supported for the major US carriers. That's the only thing holding me back from pre-ordering.
Click to expand...
Click to collapse
I know U.S. T-Mobile supported the XZ3 for VoLTE, which was the FIRST Sony unlocked phone it did that for. Your best bet to find out is prob to go check out other like 2019 or 2020 unlocked phones that people have VERIFIED to offer both on AT&T as well. But if that's an issue, then you may wanna consider T-Mobile then. I noticed on the XZ3 that in Call Settings there no longer was the option to turn VoLTE on or off, but during calls it REMAINED in 4G LTE (vs. just 4G), thereby proving VoLTE was in fact enabled.

The US Xperia 1 supported voLTE on T-Mobile, but not WiFi calling. So I'm assuming the mark II would at least do voLTE on T-Mobile. Not sure about the other carriers, but I feel like it would have to since carriers like Verizon are starting to not allowing non voLTE devices to be activated. And the mark II is supposed to work on Verizon.

Easy way to get WiFi calling in the US
https://forum.xda-developers.com/xperia-1/how-to/easy-to-wifi-calling-t4100229

Scorpiusest said:
https://forum.xda-developers.com/xperia-1/how-to/easy-to-wifi-calling-t4100229
Click to expand...
Click to collapse
How is this a solution? Switching carriers lol

I want to preorder, but really need WiFi calling. Going to wait until regular users start to receive theirs. Right now with Xfinity Mobile we are paying about $30 per month for 5 lines. The service is as good as when we were Verizon postpaid. Not willing to switch just for this phone.

Anyone in the UK on O2 get it?

Rodders_28 said:
Anyone in the UK on O2 get it?
Click to expand...
Click to collapse
Yup, got both (see attached)

I have none of those settings there.
I also don't get 4g+ don't know if that's related?
I get 4g+ if I put the missus Vodafone sim in.

Rodders_28 said:
I have none of those settings there.
Click to expand...
Click to collapse
I should have mentioned also that I'm actually on the "Customized UK" firmware opposed to the "O2 UK Pay Monthly firmware" but I had WiFi calling for sure prior to this

So my Xperia 1 ii arrived today, I'm finishing-up set-up. This is the US model, which I'm using with ATT. The deep dive *#*#7378423#*#* on the software info page states: "Current modem config: VoLTE-ATT "
But have yet to find any configuration for VoLTE or Wi-Fi calling. I'll try a call with one of the other lines in my family, who have ATT branded newish phones, to see if it "sounds" like an HD Voice call (there's not notification bar indicator of HD call, right?).
Update: Tried the other *#*#4636#*#* and the options under Phone Info are all grayed out (sigh)

JamesMiami said:
So my Xperia 1 ii arrived today, I'm finishing-up set-up. This is the US model, which I'm using with ATT. The deep dive *#*#7378423#*#* on the software info page states: "Current modem config: VoLTE-ATT "
But have yet to find any configuration for VoLTE or Wi-Fi calling. I'll try a call with one of the other lines in my family, who have ATT branded newish phones, to see if it "sounds" like an HD Voice call (there's not notification bar indicator of HD call, right?).
Update: Tried the other *#*#4636#*#* and the options under Phone Info are all grayed out (sigh)
Click to expand...
Click to collapse
You have to call ATT to whitelist your new IMEI for VoLTE provisioning. Then you need to make sure a new sim that supports VoLTE. This is what they told me but I'm missing the new sim, going to get one tomorrow

Thank you.,I'll give that a try. My SIM is the supposedly latest, about 2 years old, i. e. "A compatible SIM or eSIM card will display 25, 26, 27, or 28 in the ninth and tenth digits spots." Is there a newer SIM for ATT?

So had the following chat with ATT tech support:
"... Calista : To confirm, was the device purchased through AT&T?
Me : No, this is an unlocked phone, US model of Sony Xperia 1 ii
Calista : Thanks for the confirmation.
Calista : I have successfully activated VoLTE on the new device.
Calista : I have also checked and see that Wi-FIi calling can only be provisioned only on the device that are purchased through AT&T. However, AT&T will soon activate WiFi calling on the device that are not purchased through AT&T as well. You will be notified about this. "
However after power-cycling my phone and reprovisioning via Testing/Phone Information and on that page the steps of Refresh to get the SMSC number then tap Trigger Carrier Provisioning"--nothing, not VoLTE live switch. Remains gray. Still, interesting comment by tech support about upcoming Wi-Fi calling on BYOE.

Anyone know about VoLTE on Verizon yet? Just ordered my phone today and hoping that it will work.

JamesMiami said:
So had the following chat with ATT tech support:
"... Calista : To confirm, was the device purchased through AT&T?
Me : No, this is an unlocked phone, US model of Sony Xperia 1 ii
Calista : Thanks for the confirmation.
Calista : I have successfully activated VoLTE on the new device.
Calista : I have also checked and see that Wi-FIi calling can only be provisioned only on the device that are purchased through AT&T. However, AT&T will soon activate WiFi calling on the device that are not purchased through AT&T as well. You will be notified about this. "
However after power-cycling my phone and reprovisioning via Testing/Phone Information and on that page the steps of Refresh to get the SMSC number then tap Trigger Carrier Provisioning"--nothing, not VoLTE live switch. Remains gray. Still, interesting comment by tech support about upcoming Wi-Fi calling on BYOE.
Click to expand...
Click to collapse
Those tech support chats are useless! Took me 4 calls/chat to get to one knowledgeable one who said they have to file a level 3 tech support ticket and as she was doing it she said our internal memo said this cannot be done for non-AT&T branded phones so I'm sorry

Why not just use Google Voice for wifi calling? I use Google Voice for just about everything now as it's a nice alternative to giving up my number to random businesses.

Is it possible, to install the VoLTE/VoWifi carrier settings by an app (as .apk)?
My problem is that Sony didn't include these settings for Swiss carriers. So I am thinking about, how to add these settings without breaking the firmware.

YandereSan said:
Why not just use Google Voice for wifi calling? I use Google Voice for just about everything now as it's a nice alternative to giving up my number to random businesses.
Click to expand...
Click to collapse
VoLTE is required to continue to use AT&T after they sunset 3G and 4G (without VoLTE). Speaking of Google, they've confirmed to me that this phone (US version) works fine on their Google Fi, supporting VoLTE, which is interesting in that Google Fi is an MVNO via Sprint, T-Mobile, and U.S. Cellular.

So if I give ATT an IMEI for a Nokia Lumia 830 or Microsoft Lumia 640XL (both on AT&T's "good" list) to associate with my SIM in my Xperia, will my Xperia be provisioned by AT&T with VoLTE & Wi-Fi calling?

Xperia 1 ii - Vodafone?

Hi all
I have read online that the Xperia 1 ii will be available on Vodafone and via carphonewarehouse in the UK, but have seen nothing relating to preorders there?
Is it that there are no preorders via these outlets and o2 has exclusivity on the preorder bonus?
The better value will always be O2 anyway with the refresh trick, but just seems odd that the phone officially goes on sale on Thursday next week and only o2 have offered up preorder slots?

The Xperia 1 II is exclusive to O2 at the moment. Not sure when other networks will get it.

I'm with Vodafone as I get the 15% discount and can't find anything about this phone coming to Vodafone. Hope it available in August when it's time for me to upgrade

It's on the Vodafone UK website now.
Could someone with the Xperia 1 II from Vodafone UK please tell me Customization Version of the firmware that came with the phone? I ask because I want to get Vodafone VoLTE working on my O2-provided phone, but the only Vodafone firmware on XperiFirm right now is 1321-8394 which is described as "Vodafone LC Net Locked" and I'm a bit worried about the "Net Locked" bit and don't know what that means.
You can find your Customization Version by opening the service menu by dialling:
*#*#SERVICE#*#*
Then Service info -> Software info -> Customization Version
Thanks

brocnical said:
It's on the Vodafone UK website now.
Could someone with the Xperia 1 II from Vodafone UK please tell me Customization Version of the firmware that came with the phone? I ask because I want to get Vodafone VoLTE working on my O2-provided phone, but the only Vodafone firmware on XperiFirm right now is 1321-8394 which is described as "Vodafone LC Net Locked" and I'm a bit worried about the "Net Locked" bit and don't know what that means.
You can find your Customization Version by opening the service menu by dialling:
*#*#SERVICE#*#*
Then Service info -> Software info -> Customization Version
Thanks
Click to expand...
Click to collapse
I got the information off someone on Reddit. Phones bought directly from Vodafone in the UK ship with the 1321-8394 "Vodafone LC Net Locked" firmware. We suspect this firmware is locked to work only with a Vodafone SIM so don't recommend it. If in the UK, you're better off with the 1321-7192 "Customized UK" firmware, as on this firmware VoLTE and WiFi calling both work on Vodafone UK and the other UK networks too.

Has anyone else noticed that after the 58.0.A.3.88 update that Vodafone UK WiFi-Calling no longer works on the Customized UK firmware?

I have the UK customised firmware to move me away from O2 ROM,
I had the new update rolled out automatically this morning.
WiFi calling didn't seem to work initially but then some app auto ran and said something like 'Downloading IME data" I clicked it and let it complete and is said vodafone WiFi calling updated or some sort of similar message.
Seems to be working fine now, I have a VF business sim installed.

brocnical said:
Has anyone else noticed that after the 58.0.A.3.88 update that Vodafone UK WiFi-Calling no longer works on the Customized UK firmware?
Click to expand...
Click to collapse
MAX_G said:
I have the UK customised firmware to move me away from O2 ROM,
I had the new update rolled out automatically this morning.
WiFi calling didn't seem to work initially but then some app auto ran and said something like 'Downloading IME data" I clicked it and let it complete and is said vodafone WiFi calling updated or some sort of similar message.
Seems to be working fine now, I have a VF business sim installed.
Click to expand...
Click to collapse
OK, just was in an area there with poor mobile signal and WiFi calling is working fine. Thing is the #*#*4636#*#* menu shows that Wifi Calling not provisioned, and there is no longer an option to turn it on or off in the network settings. However, when you need it WiFi calling is still working fine and IMS status then shows Voice over WiFi: Available.

Unlock VoLTE?

Possible to modify phone to force use VoLTE? This phone can use VoLTE on some carrier but no other. I read someone modify some xml files on xz2 and got VoLTE to work for carrier that originally not work.
:?

Xperia XZ2 compact VoLTE
Hi there, Is there anyone on this forum that has an Xz2 COMPACT with the VoLTE enabled? If yes, can you please let us know which firmware are you using? Many Thanks Riolo
forum.xda-developers.com

Can it be combine firmware modem element from xz2 compact to make volte work?

.

I'm using the stock version on my Region which is compatible with VoLTE/WiFi Calling and it doesn't show them... ANy advice?

Dfis said:
I'm using the stock version on my Region which is compatible with VoLTE/WiFi Calling and it doesn't show them... ANy advice?
Click to expand...
Click to collapse
You will need to know what region rom your running, and what mobile provider you are using to answer the question.

eparr said:
You will need to know what region rom your running, and what mobile provider you are using to answer the question.
Click to expand...
Click to collapse
G8441_47.2.A.11.228-R1C_Custom_IL - Partner mobile provider.
** Partner supports VoLTE/WiFi Calling (Tried on Samsung phone and it shows there)

Dfis said:
G8441_47.2.A.11.228-R1C_Custom_IL - Partner mobile provider.
** Partner supports VoLTE/WiFi Calling (Tried on Samsung phone and it shows there)
Click to expand...
Click to collapse
Looks like the right rom. But, i unfortunately don't know about VoLTE compatibility with non-US carriers on the XZ1 Compact.

Volte not work with att