Will flashing pixel 4 XL with AT&T build carrier lock device? - Google Pixel 4 XL Questions & Answers

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.

Related

[Q] HELP! None VZW UICC Present

Hi,
Hopefully someone can help here - I'm assuming its an isolated situation since no one at Verizon (US) or M1 (Singapore) can help me with. I have a HTC One (Verizon) that works perfectly in the states. I am overseas for a few months and confirmed with VZ Global Services that the phone is pre-unlocked so any local carrier will work.
I chose M1...everything on the phone works great, calling / SMS / Internet / Data...etc. However I am given this error anytime I try and turn on the Mobile Hotspot or USB Tethering:
"None VZW UICC present
A Verizon Wireless LTE SIM card is not detected. Mobile Hotspot/Mobile broadband Connect service needs a Verizon SIM card in order to work."
note:: Hotspot works perfectly in the states....
I've spent a lot of time on with VZ Global Services and at the M1 store here. VZ was not helpful, as soon as I admitted to using a SIM that was not theirs, they stopped all support. At M1 store we tried a variety of SIM cards; prepaid, postpaid...etc. None of them fixed the problem. Only suggestion left is to call HTC. So thats why I posted this in the general HTC rather than Verizon specific.
If anyone has any idea how to go about troubleshooting this it would be most appreciated.
Thanks in advance.
I should add - the phone is stock, not Rooted, APN changed to sunsurf (which is what M1 uses).
I am having the exatct same issue right now. I am in India and I have a prepaid SIM card from Idea and when I try and use the mobile hotspot I get the same error.
When activating the Hotspot function the device does an entitlement check against Verizon's server. Without a Verizon Sim it will automatically fail and not allow hotspot usage. Only way around it is rooting and removing the entitlement check or using a custom non-verizon rom.
i belong to India, i have htc one max,and i have also facing same problem,please tell me any solution if possible

Can't Activate Note8, fails on configuration with Sprint & Boom Mobile

Hi Guys, I'm wondering if someone more knowledgeable can help advise. I've spent 12 hours and cant activate my Unlocked Qualcomm Note8 on any of my service providers (SMN-950U1.)
I want to use it on Boom Mobile Red (Verizon MVNO)
I cant get the Network Operator to configure, when I select Verizon it fails on configuration. I'm not referring to APN because I do not even get calls, the Operator is listed as "Emergency Calls Only". The Sim works perfect on my Pixel XL and iPhone 7 Plus. This phone was purchased unlocked form Samsung direct with clean IMEI. I called Samsung and they have no idea, they said the phone is defective, which I believe it is not.
I had an issue activating with Sprint and still have not had Data working, though I was able to get calls. I've given up w/ Sprint and will upgrade that line with a iPhone X.
I inserted my friends Verizon Post Paid Sim from his Moto Mod phone and everything was perfect (calls, TM, LTE calling) and the phone got LTE+. Is it possible the Note8 unlocked will only work with the big 4 carriers, ST and TW? I read a similar issue people from Boost Mobile have when they insert their sims it says invalid Sim. I really have no idea what is going on - Boom doesn't have many customers and their support team has never delt with this issue, they said the phone is defective. Has anyone been able to use a Unlocked Note8 on Boom? I've tried flashing various variants of firmware, including Verizon with no success. I'm puzzled with what is going on.

Restore wi-fi calling - carrier unlocked

Hi. I'm new (and old) so apologies in advance for any faux pas. I couldn't find another thread with a problem like this, so I'm posting a new question.
Here's what happened:
I have been using Ting MVNO SIMs on two Galaxy S8 phones for about 18 months. Preparing for an overseas trip, I asked T-Mo to unlock the phones so I could use foreign SIMs.
T-Mo unlocked the phones, but now I can't get wi-fi calling to work on the Ting SIM. Tried a MintMobile and FreedomPop and the same thing, no option in the tools or phone app to activate wi-fi calling although it is activated at the MVNO and the E911 addresses are correct.
T-Mo says it's impossible that unlocking did that. Well, it happened. Ting doesn't have a clue about how/why it happened or how to fix. Samsung says it's the carrier's problem not theirs.
I factory re-set hoping it would restore the lock, but that didn't do anything. I don't get a signal at my home, so wi-fi calling is necessary. My next step is to buy new phones.
Ideas? Thanks!

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?

Activate Wi-Fi Calling on 4XL via command? I've seen it...

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.

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