So I picked up a cheap ATT branded Lumia 640 and want to get VoLTE working on it. ATT currently allows VoLTE on the 640 XL, but because they are selling the regular 640 as a GoPhone they have it locked down to 3G/CSFB.
So I have 2 questions, is it either possible to "trick" the 640 into taking a 640 XL load (AT&T branded would be fine), or alter the config files in the 640 to enable IMS registration.
Thanks!
HKLM\SOFTWARE\Microsoft\Cellular\MVSettings\IMSISpecific\Default\CellUX\ShowVoLTEToggle controls whether or not the switch to enable it appears but even getting it to appear won't allow you to change it's setting. That has to be elsewhere.....
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I notice that in ATT Moto X, you can set APN, but you cannot set network mode (to disable LTE, for example).
Is there any workdaround for disabling LTE ?
Besides, does the following issue affect ATT Moto X (sim unlocked) when using Tmobile or foreign GSM sim cards ?
http://forum.xda-developers.com/showthread.php?t=2591954
[email protected]
mailxd said:
I notice that in ATT Moto X, you can set APN, but you cannot set network mode (to disable LTE, for example).
Is there any workdaround for disabling LTE ?
Besides, does the following issue affect ATT Moto X (sim unlocked) when using Tmobile or foreign GSM sim cards ?
http://forum.xda-developers.com/showthread.php?t=2591954
[email protected]
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Click to collapse
I'm interested in the same thing. I wanted to disable LTE to see what ATT's HSPA+ speeds are.
Grab the app "LTE setting" from the Play store. Select WCDMA only instead of LTE/GSM auto (PRL).
Hi, I recently purchased a Nokia 8 on Amazon (Italy, unlocked, TA-1004 EU6) and I am on the latest build (00WW_4_390). My carrier is TIM.
In the network settings I don't have the enhanced LTE toggle for HD Audio on call. Like someone else, if I search it in the settings, it appears among the results, but refers to the menu without its voice. In the hidden menu (*#*#4636#*#*) provisioning VoLTE is enabled and both data and voice are indicated on the LTE network.
Among the options of my SIM I have enabled the service "TIM Voce 4G" (aka "TIM Voice 4G"). So on my line the VoLTE is enabled and the Nokia 8 fully supports it.
I know that the carrier must also support the specific device, so I ask: someone in Italy managed to activate it? If yes with TIM or other carriers?
I did the initial setup of my Nokia 8 without the SIM for the issue of the alleged block of updates from the carriers (I don't think that things are like that and I explained why in the appropriate topic) and I wouldn't want this to affect the correct configuration of some carrier services.
Hello everyone.
As you know from the post above, I have a problem with enabling VoLTE on my Nokia 8.
Until a few days ago I found myself with a smartphone with full support hardware and software at VoLTE and with the relevant option active on my SIM, but my carrier (TIM) hadn't enabled the Nokia 8 to use this technology on its own network.
Now TIM has enabled the Nokia 3, 5 and 8 at VoLTE, but the option to activate HD calls continues to be inaccessible.
I also tried to subscribe to the beta program, but the situation is the same with both Android 8.0 and Android 8.1 (january security patches on both).
TIM has also reset the network, but they say they have no problem. On my Nokia I also reset the network options, as well as move the sim on the second slot, without success.
Are you aware of any way to force the display of that item? Once I remember that on Nexus 6P it was enough to disable VoLTE provisioning and disconnect from the network, or something similar.
Thank you all and sorry for the double post.
Anyone have the lg v40 running on at&t? surprisingly i have no options under mobile networking. I can only enable international data roaming and setup new apn. Usually i'd expect to see settings allowing me to change the bands.
Alibaba0101 said:
Anyone have the lg v40 running on at&t? surprisingly i have no options under mobile networking. I can only enable international data roaming and setup new apn. Usually i'd expect to see settings allowing me to change the bands.
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Everything is auto- , the phone I have is locked to att and I guess the only way to change that is to unlock the phone.
mtyler7807 said:
Everything is auto- , the phone I have is locked to att and I guess the only way to change that is to unlock the phone.
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thx, i flashed the unlocked firmware and still the same thing. looks like it keys everything off of the sim.
Alibaba0101 said:
thx, i flashed the unlocked firmware and still the same thing. looks like it keys everything off of the sim.
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Click to collapse
It bounces off 2 things, the phone's props and the network being detected. Using the unlocked does not enable settings if it's not natively supported by the carrier contrary to popular belief. That was true on older versions of android. Newer ones relies on multiple configs to decide what options you get to see or not. In most cases, if the phone model is not what is expected for a particular network, it will default to global roaming mode that has the least set of options. From what I've seen, this comes as a result of carriers requesting to have specifically designated models tailored to their service.
If you are rooted, you can tweak stuff in build.prop to have the phone switch carrier and regional modes.
Alibaba0101 said:
Anyone have the lg v40 running on at&t? surprisingly i have no options under mobile networking. I can only enable international data roaming and setup new apn. Usually i'd expect to see settings allowing me to change the bands.
Click to expand...
Click to collapse
root not needed:
1. for network mode, try dial *#*#4636#*#* and then phone information, this works on my v35 with tmo and att sim, you can also use a 3rd app called "network mode" which is a shortcut of the above, hope that works on v40 too.
2. for band selection, I use 277634#*# on v30(tmo unlocked) for both tmo and att sim; I use 277634#*# on v35 (both att unlock and usa unlock) for tmo sim; I use *#546368#*350# (need to dig into the menu to find band selection) on v35 (both att unlock and usa unlock) for att sim; hope either one of these two works for v40.
Wi-Fi calling is no longer working on my 4XL. I have Verizon on an unlocked 4XL.
The options are completely missing. I've spent over 4 hours on the phone with Verizon tier 2 tech support and gotten nowhere. They insist that Wi-Fi calling is active on my account/line and that its an issue on my phone.
I should mention I have a dual SIM setup running both Verizon and T-Mobile, T-Mobile is an eSIM. That said BOTH worked fine until I popped my Verizon SIM into a Verizon Mi-Fi and the SIM from the Mi-FI into my 4XL.
Verizon said they could see the two units reprovisioned but as far as Wi-Fi calling on the 4XL, it's active and SHOULD work but its almost like the Verizon software is blocking it the settings from even showing. I have NO options for Wi-Fi calling under the phone settings anywhere, they are gone but I do still see them for the T-Mobile eSim.
I remember back in the day Verizon blocked Wi-Fi calling on Pixel devices that were unlocked and or not Verizon branded. There was a command-line you could run to "unhide" the settings and turn them on.
Does anyone have anything like this for the 4XL? Verizon said I may need to completely factory wipe my 4XL but I have it setup perfectly, I really do not want to do that if possible.
Thanks!
I use 2 SIMs as well. My T-Mobile account is ESIM and my Visible is physical sim. I have no issues with WiFi calling on both. I attached a screenshot, do you see the same menus as me? Also, is your Google pixel the Google store variant or a carrier?
Here is my TMobile settings.
I have an unlocked pixel 4 XL that was purchased directly from Google. I would like to have Wi-Fi calling on AT&T but was told they only enabled it on AT&T branded phones. Would flashing my pixel 4 XL with an AT&T build carrier lock my device?
I also have a pixel 3 XL and have the same question.
Thanks in advance anyone who can answer.
@bmurf
What they told you is not true. I have always had WiFi calling working on ATT using Google Store phones forever. If you are currently using AT&T as your carrier, you use the "Global" image or AT&T only if one is available, and NO it definitely will not carrier lock your phone. If you are on the November 12.0.0 (SP1A.211105.002, Nov 2021) it will work if your SIM is provisioned for it. If you cannot get Wifi calling working, check phone settings to see if your SIM is provisioned for it. In the dialer type *#*#4636#*#* under phone settings check that the toggle for WI-Fi calling is on. If it is on, that means your SIM is provisioned for it and it will work. If it is off and you cannot toggle it on, your SIM has to be provisioned for it by AT&T. . My family has 4 Pixels and they all have Wi-Fi calling working for years. Starting back with the Nexus phones, but PIxel 2,3,4 all work. You can go to AT&T and request they provision your SIM for free. Don't leave the store until both your phones are working. If you have a really old SIM it may need to be replaced (free also). Disclaimer: I have had a post-paid account for a long time. If you are on a pre-paid plan or AT&T MVNO, your results may be different.