Database Users

VoLTE on Nexus 6 on AT&T....

Don't get your expectations high (if VOLTE availability is a concern anyways) but all internal paper for sales for the Google Nexus 6 (branded as Nexus 6 by Motorola) does not appears that a VoLTE capacity will be a sales point with AT&T for the Nexus 6.
To be fair with AT&T, Voice HD is not deployed on all markets and I guess AT&T does not wanna screw up on this but yet again, the device we all know is VoLTE capable but seems AT&T might not provision on rate plan speaking the feature.
Of course this is as of know I have seen all documentation.
Might update when the device gets circulated officially.

You may be able to add the ims settings for att. I have been meaning to try this on my maxx.
Sent from my XT1080 using Tapatalk

The APNs Settings sound plausible, I will preorder mine by midday.
I will try to confirm with the Store's representative if there any update.
***Update****
No one at Store knows if the device will physically have the HD Voice capacity turned on.
So, I hope that via settings or APNs do the trick.

Does anyone have the ims settings for att volte?

I too am interested in getting this working if possible. Does VoLTE work on ATT with the Nexus 6?

Right now HD voice is limited to a select few handsets in a select service area ATT did not go nationwide at once like Verizon. In order to be HD it also has to be a call to another compatible ATT phone also located in the select service area.
Sent from my XT1254 using Tapatalk

AT&T doesn't offer N6 Volte support.
Sent from my Nexus 6 using Tapatalk

713brianp27 said:
AT&T doesn't offer N6 Volte support.
Sent from my Nexus 6 using Tapatalk
Click to expand...
Click to collapse
Can you please tell us why this is so?

jjimenezjj said:
Can you please tell us why this is so?
Click to expand...
Click to collapse
Have to talk to them on why. You might see nexgen in apn thats their volte apn but at&t never enabled it. I haven't seen anything att volte related on shamu, just Verizon. I recall when we (Bliss) added support. I couldn't live without it. Lol had it for 2+ years. So ask att why they won't enable the APN. Get on them.
Official Team Bliss Flo/Deb/v410 Maintainer
Sent from my Nexus 6 using Tapatalk

I just had a live chat with someone from AT&T and he told me if HD Voice is in your area, it should automatically connect and you shouldn't have to enable anything. I'll have to try it out and see if he was right or not.

HD voice may be in "your area" and most likely is. You just can't access it. With a Nexus 6... Put your sim in another nexgen phone and BAM you've got volte. ie gs6, g4, etc, n6-nope.
Sent from my Nexus 6 using Tapatalk
---------- Post added at 01:04 PM ---------- Previous post was at 01:01 PM ----------
They have it, probably large coverage. They just never activated it on N6. Be specific when you call. And ask why do you not enable volte APN on the N6.
Sent from my Nexus 6 using Tapatalk

It's enabled in alot of areas but not for the Nexus 6, put your sim in an iPhone 6 and you will see it works if its active in your area, they just never activated it on the back end for the nexus 6

If any of you are still rocking your N6 and want to give this method a shot to get VOLTE on ATT , look at my post here...
https://forum.xda-developers.com/oneplus-5t/how-to/att-volte-op-5t-possibly-phones-t3717177
I know its a different device, but the principle is the same. I have VOLTE on my OP5t doing just that

apophis9283 said:
If any of you are still rocking your N6 and want to give this method a shot to get VOLTE on ATT , look at my post here...
https://forum.xda-developers.com/oneplus-5t/how-to/att-volte-op-5t-possibly-phones-t3717177
I know its a different device, but the principle is the same. I have VOLTE on my OP5t doing just that
Click to expand...
Click to collapse
Wanted to take a look but the URL is invalid

@EpicKip: The link was working yesterday, however I know why it was deleted: it involves using the IMEI of another device. The moderators likely believed this to be an end run around the site's rules regarding discussions about changing the IMEI, as in this case the IMEI change is done at the carrier rather than on the device.

Strephon Alkhalikoi said:
@EpicKip: The link was working yesterday, however I know why it was deleted: it involves using the IMEI of another device. The moderators likely believed this to be an end run around the site's rules regarding discussions about changing the IMEI, as in this case the IMEI change is done at the carrier rather than on the device.
Click to expand...
Click to collapse
It was left up to me whether I wanted to keep it going. I was allowed to leave it up but considering the conflict amongst mods I let it be. The method however is still working for me.

Ok so I came to the conclusion that doing this unless it is an AT&T branded Nexus 6 is not possible. However, for a brief period of about 2 minutes a few weeks ago I was able to get IPv6 working on LTE after yelling at AT&T support for an hour or so and giving them some AT&T IMEI I found from searching on eBay for a galaxy s8. It was giving me an IPv6 ping for a brief period (WiFi was disconnected and disabled on the N6 and I have IPv6 disabled on my router for the home network so I know it was from LTE).
It stopped working after that brief period when it probably recognized I was using a non at&t Nexus 6 and then I gave up.
---------- Post added at 07:22 PM ---------- Previous post was at 07:16 PM ----------
apophis9283 said:
It was left up to me whether I wanted to keep it going. I was allowed to leave it up but considering the conflict amongst mods I let it be. The method however is still working for me.
Click to expand...
Click to collapse
I may try that but I read the thread and just know you aren't the only one the mods like to troll. The developer of the Spotify dogfood mod was troubled with them in the past week too.

t3chwizard said:
Ok so I came to the conclusion that doing this unless it is an AT&T branded Nexus 6 is not possible. However, for a brief period of about 2 minutes a few weeks ago I was able to get IPv6 working on LTE after yelling at AT&T support for an hour or so and giving them some AT&T IMEI I found from searching on eBay for a galaxy s8. It was giving me an IPv6 ping for a brief period (WiFi was disconnected and disabled on the N6 and I have IPv6 disabled on my router for the home network so I know it was from LTE).
It stopped working after that brief period when it probably recognized I was using a non at&t Nexus 6 and then I gave up.
---------- Post added at 07:22 PM ---------- Previous post was at 07:16 PM ----------
I may try that but I read the thread and just know you aren't the only one the mods like to troll. The developer of the Spotify dogfood mod was troubled with them in the past week too.
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Click to collapse
They didnt bother me quite the opposite. They took in under consideration if it violated XDA terms. They actually ruled in my favor. I dont blame them for checking what I was doing thoroughly so it didnt violate XDA rules. However doing it this way should take the branding out of the equation. As my OP5t isnt branded.

apophis9283 said:
They didnt bother me quite the opposite. They took in under consideration if it violated XDA terms. They actually ruled in my favor. I dont blame them for checking what I was doing thoroughly so it didnt violate XDA rules. However doing it this way should take the branding out of the equation. As my OP5t isnt branded.
Click to expand...
Click to collapse
I sent you a PM

@apophis9283 Do you or anyone else know of any ROMs for Nexus 6 that work with VoLTE (maybe for AT&T or have VoLTE at all in the ROM) specifically using the carrier side IMEI workaround? I'm running DU 7.1.2 right now and I cannot get VoLTE to work for the life of me. I see no option to disable the VoLTE icon in the statusbar icons settings either so this makes me think maybe this ROM has no VoLTE support.

Nexus 6P: Do any Carriers Sell With Bloatware?

Bloatware on Nexus 6P
Has anyone with a Nexus 6P on a contract (i.e. bought direct from their carrier) had any bloatware on their phone?
I'm trying to workout if carriers are respecting the Nexus ethos of it being a pure Android/Google phone or whether carriers are adding their own apps. In particular, is anyone on EE, having got their phone direct from them? I've not been able to work this out nor get a clear answer from an EE rep. I would prefer a pure Android phone, but probably wouldn't mind carrier (EE) firmware, or waiting longer for OTAs, if the only thing that was different was the addition of wifi calling.
Thanks.

What carrier?

As far as I know (in the U.S. at least), you cannot purchase the Nexus 6P (or 5X) through a wireless carrier. You must buy direct from Google or Huawei. Thus, the only apps on the phone are Google ones!

Here in Canada we can buy them from the Carrier. I got mine via preorder from my Carrier and it had ZERO bloat on it. It's also the first phone I've gotten from a Carrier where they hadn't opened the box and get the phone to mess around with it.

anglerstock said:
What carrier?
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Click to collapse
I'm in the UK, so I'm especially interested in UK carriers, in particular EE. But, I'm also wondering if the Nexus is being treated like the iPhone by carriers, which as far as I understand, is left alone by carriers.

BillyTheRatKing said:
As far as I know (in the U.S. at least), you cannot purchase the Nexus 6P (or 5X) through a wireless carrier. You must buy direct from Google or Huawei. Thus, the only apps on the phone are Google ones!
Click to expand...
Click to collapse
Thanks. I didn't know that. I wonder why things are different here in the UK?!

UgoyUgoy said:
Thanks. I didn't know that. I wonder why things are different here in the UK?!
Click to expand...
Click to collapse
Pretty sure it's the same here as the uk. You can get them through Carriers but they don't have any bloat. There are no CSC packages built into the Nexus factory images. As far as I know. Again mine came from a carrier and no bloat. Just stock.

airwa1kin7 said:
Here in Canada we can buy them from the Carrier. I got mine via preorder from my Carrier and it had ZERO bloat on it. It's also the first phone I've gotten from a Carrier where they hadn't opened the box and get the phone to mess around with it.
Click to expand...
Click to collapse
That sounds hopeful! Hope they do the same in the UK.

airwa1kin7 said:
Pretty sure it's the same here as the uk. You can get them through Carriers but they don't have any bloat. There are no CSC packages built into the Nexus factory images. As far as I know. Again mine came from a carrier and no bloat. Just stock.
Click to expand...
Click to collapse
I'll soon order a Nexus 6P. If I get one via a carrier, I'll report back on its ROM and if it comes baked with anything.

Samsung S8 - Unlocked Phone - No Wifi Calling? What Else Am I Missing

I bought an unlocked S8 at Best Buy because it was a good deal.
However, I'm noticing AT&T is restricting Wifi calling. There isn't even an option to turn in on.
Are they preventing this? If so, can I get it turned on by them ? I'm assuming there is a ROM I could flash to get it, but I would hate nothing during flashing bricking my phone.
Any other features I'm missing? Since I have really bad coverage at my desk at work, WIFI calling is important to me. I'm considering returning the phone and going to ATT brand, but there is a $35.00 restocking fee. I feel Best Buy should have told me the downsides of an unlocked.

I didn't get any restocking fee when I returned my ATT S8. Got a full refund, no questions asked. Besides if you're just swapping out to another carrier one, I'm sure they will waive it. I have MintSim (Tmo) and WiFi calling can be enabled and works fine for me on the unlocked firmware on my Vzw S8.

AFAIK, AT&T does not allow wifi calling for non-branded phones.

Can anyone explain to my why this would be? Is there any technical reason that they cannot do this on an non branded phone or are they being difficult?
I know it could be that they are strong armming me into another 2 year agreement, but if I can't use Wifi Calling, I cannot use their service due to poor reception at work. I think it would be in their best interest to let me use this feature.
Everyone I talked to on phone and in store basically act like it should be fine.
PS Running Android 7.0

bdaoust said:
Can anyone explain to my why this would be? Is there any technical reason that they cannot do this on an non branded phone or are they being difficult?
I know it could be that they are strong armming me into another 2 year agreement, but if I can't use Wifi Calling, I cannot use their service due to poor reception at work. I think it would be in their best interest to let me use this feature.
Everyone I talked to on phone and in store basically act like it should be fine.
PS Running Android 7.0
Click to expand...
Click to collapse
I am slightly confident that CSC (country/carrier specific code) patch can fix this issue but you would need to look into the other section for that and I say this because it fixed VoLTE issue for some other guys...

WiFi is not possible on AT&T network with the Unlocked version of S8 phones
This may help others who are considering the Unlocked S8.
Note: As of today, no options available from either AT&T or Samsung to enable WiFi calling.
After multiple trips to AT&T, BestBuy Samsung, chat sessions with Samsung support and now calling Samsung Premium Care, I finally confirmed that the Unlocked S8 model does not have any possible software upgrade to enable WiFi calling. Why did so many not know?
Samsung:
Please revise your website to clearly state the limitation, (WiFi is not possible on AT&T network ), with the Unlocked version of your S8 phones.
What's Next?
I was told that there is nothing that Samsung can do for me but Return the phone for Refund.
Now returning this phone requires me to again pay additional cost for replacing/activating another SIM for my old phone to use during the time I process an order for my next phone. Samsung cost me hours of my time and wasted my money.
bdaoust said:
I bought an unlocked S8 at Best Buy because it was a good deal.
However, I'm noticing AT&T is restricting Wifi calling. There isn't even an option to turn in on.
Are they preventing this? If so, can I get it turned on by them ? I'm assuming there is a ROM I could flash to get it, but I would hate nothing during flashing bricking my phone.
Any other features I'm missing? Since I have really bad coverage at my desk at work, WIFI calling is important to me. I'm considering returning the phone and going to ATT brand, but there is a $35.00 restocking fee. I feel Best Buy should have told me the downsides of an unlocked.
Click to expand...
Click to collapse

dealing with the same thing and entirely frustrated. so much wasted time that a simple disclaimer would've saved me from.

wifi calling is a feature enabled by a carrier, not the phone brand. if you want wifi-calling, flash the relevant firmware for your carrier just like i did for VZW to get wifi-calling to work. and btw, this information was widely known by doing some research previous to purchase. i had no problem finding this out but ordered anyway with the intent to flash the firmware.

knightsfury said:
wifi calling is a feature enabled by a carrier, not the phone brand. if you want wifi-calling, flash the relevant firmware for your carrier just like i did for VZW to get wifi-calling to work. and btw, this information was widely known by doing some research previous to purchase. i had no problem finding this out but ordered anyway with the intent to flash the firmware.
Click to expand...
Click to collapse
i flashed it with straight up ATT, all files from here:
joe3681 said:
AT&T QF7 (latest fw)
Click to expand...
Click to collapse
and wifi calling won't work. just gives me this message:
"Oops!
We can't turn on Wi-Fi Calling for your account. Think this message is a mistake? Ask the person who can make account changes to call us..."
After numerous calls to Samsung and AT&T you absolutely cannot enable wifi calling on the unlocked phone. Only phones purchased as AT&T branded are allowed the full feature set.
If in fact you DID buy an AT&T S8, you can unlock it and keep said features, but not in reverse of that. Which blows.

fremitus said:
i flashed it with straight up ATT, all files from here:
and wifi calling won't work. just gives me this message:
"Oops!
We can't turn on Wi-Fi Calling for your account. Think this message is a mistake? Ask the person who can make account changes to call us..."
After numerous calls to Samsung and AT&T you absolutely cannot enable wifi calling on the unlocked phone. Only phones purchased as AT&T branded are allowed the full feature set.
If in fact you DID buy an AT&T S8, you can unlock it and keep said features, but not in reverse of that. Which blows.
Click to expand...
Click to collapse
That really makes no sense.... (Not that you're lying) but there's specific firmwares for the unlocked S8's depending on carrier. the G950U1 has different CSC's depending on what carrier it's used for. Why do that if it doesn't enable that carriers features?!

joe3681 said:
That really makes no sense.... (Not that you're lying) but there's specific firmwares for the unlocked S8's depending on carrier. the G950U1 has different CSC's depending on what carrier it's used for. Why do that if it doesn't enable that carriers features?!
Click to expand...
Click to collapse
flashing other carriers might work (like Tmobile), but not with ATT as they are using based on the IMEI registered with ATT brand.. so flashing any CSC won't enable it as long as you spoke to their customer care and provide your No and other ATT phone to activate Wifi calling on your number.. this is not 100% working method.. search through teh CSC selection forum there people posted a workaround.

KeithDo said:
This may help others who are considering the Unlocked S8.
Note: As of today, no options available from either AT&T or Samsung to enable WiFi calling.
After multiple trips to AT&T, BestBuy Samsung, chat sessions with Samsung support and now calling Samsung Premium Care, I finally confirmed that the Unlocked S8 model does not have any possible software upgrade to enable WiFi calling. Why did so many not know?
Samsung:
Please revise your website to clearly state the limitation, (WiFi is not possible on AT&T network ), with the Unlocked version of your S8 phones.
What's Next?
I was told that there is nothing that Samsung can do for me but Return the phone for Refund.
Now returning this phone requires me to again pay additional cost for replacing/activating another SIM for my old phone to use during the time I process an order for my next phone. Samsung cost me hours of my time and wasted my money.
Click to expand...
Click to collapse
Time I understand. You will never get that back. The SIM card issue I don't understand. Didn't you keep the old sim card from your old phone. Yes, AT&T will have to reactivate it, but they should do that for free. The only time I've had to pay is when I needed to get a new physical SIM card because the size was wrong for the phone I wanted to use. If you kept the old SIM card, you can simply reactivate it and stick it in your old phone again.

joe3681 said:
That really makes no sense.... (Not that you're lying) but there's specific firmwares for the unlocked S8's depending on carrier. the G950U1 has different CSC's depending on what carrier it's used for. Why do that if it doesn't enable that carriers features?!
Click to expand...
Click to collapse
it's all tied to your IMEI, and that can't be changed. the VoLTE and Wifi Calling are non-existent unless you bought an ATT branded phone.

Guys ... I'm still looking for other options BUT this will work ....
If you have a business account you can just go in to the account and change your billing acct IMEI for your unlocked phone to an IMEI of an AT&T S8 (get one from a friend, go to the store and check out the displays, etc)
If you don't have a business acct call support , eventually you can get a person that knows what to do and they can plug in a working IMEI
This works ... works on my S7 Edge as well

Flashed unlocked phone with ATT FW. Then changed my account's imei with the imei from an ATT branded phone and that got me advanced calling options. Wifi calling will worked for about 10 seconds until ATT reads the phone's actual imei and then they turn off wifi calling. Volte will continue to work.

AT&T OTA Update Coming
All, I have just confirmed with AT&T they have made the request for an OTA update to enable WiFi Calling in the Settings Menu from Samsung. The time frame I was given as of yesterday 10/2/2017 was 14 days. So by 10/16/2017 S8 & S8+ phones should receive an OTA update that enables WiFi Calling feature.

vanornum said:
All, I have just confirmed with AT&T they have made the request for an OTA update to enable WiFi Calling in the Settings Menu from Samsung. The time frame I was given as of yesterday 10/2/2017 was 14 days. So by 10/16/2017 S8 & S8+ phones should receive an OTA update that enables WiFi Calling feature.
Click to expand...
Click to collapse
Very interesting! This would be a life saver. Do you trust their timeframe?
Sent from my Nexus 7 using Tapatalk

Hey. I finally found the Wifi calling settings.
Phone/ Dialer > Context Menu (the three dots on top right corner) > Settings > Wi-Fi calling > And I see my three options there.
I'm on Galaxy S8 G9500U1
Sent from my SM-G950U1 using Tapatalk

aravreddy2231 said:
Hey. I finally found the Wifi calling settings.
Phone/ Dialer > Context Menu (the three dots on top right corner) > Settings > Wi-Fi calling > And I see my three options there.
I'm on Galaxy S8 G9500U1
Sent from my SM-G950U1 using Tapatalk
Click to expand...
Click to collapse
Hmm, I don't see them (yet?)... SM-G955U1 with phone app version 2.3.00.20. What version of the app do you have?
Sent from my SM-G955U1 using Tapatalk

Same
Sent from my SM-G950U1 using Tapatalk

Google Fi Carrier Switching?

I'm curious, I'm VERY new to the android world (My iPhone XS Max is still my primary)
I started with Androids about a year ago out of both boredom and a desire to learn.
So, I picked up a Pixel 2, then an LG V30, then S8, then S9, until I found the OnePlus 6. I was instantly hooked on the OnePlus 6, only replacing it with the 6T for the fingerprint reader in the screen. (I still have the 6 and 6T, all others were sold)
Anyway - Google Fi is intriguing to me, as I end up in areas were T-Mobile simply doesn't work. I would like the carrier switching, but I don't have a desire to switch back to a more expensive Pixel 3 XL, that really ONLY offers me the advantage of the carrier switching. Overall, I found the OnePlus 6/6T running Pie to be the cleanest experience.
So, my question - Does anyone feel that someone may be able to get the OnePlus phones to do the carrier switching? Or is this actually a hardware feature? I know nothing about how Fi works, so please excuse my ignorance.
Thank you in advance for any productive responses.

Alternatively, maybe I should just sell the 6 and 6T and pickup with 3XL?

intrusdave said:
Alternatively, maybe I should just sell the 6 and 6T and pickup with 3XL?
Click to expand...
Click to collapse
I believe that automatic carrier switching is an integral part of Google Fi
Sent from my crosshatch using XDA Labs
---------- Post added at 12:33 AM ---------- Previous post was at 12:25 AM ----------
Oops wrong. Only for fully supported phones.
Sent from my crosshatch using XDA Labs

Yes, I understand that. But the question was "Does anyone feel that someone may be able to get the OnePlus phones to do the carrier switching? Or is this actually a hardware feature?"
In other words, if the switching software based that may be able to be patched into the 6/6T, or is it a modem hardware feature exclusive to the official Fi devices?

intrusdave said:
Yes, I understand that. But the question was "Does anyone feel that someone may be able to get the OnePlus phones to do the carrier switching? Or is this actually a hardware feature?"
In other words, if the switching software based that may be able to be patched into the 6/6T, or is it a modem hardware feature exclusive to the official Fi devices?
Click to expand...
Click to collapse
I was hopping this would be fully functional as Fi announced support for non Fi devices, but apparently network swapping is not going to work or work so well. See the write up for the explanation.
https://www.xda-developers.com/project-fi-samsung-oneplus-lg-moto-iphones/

looks to me like the one plus 6 is on there, so, the T might work as well.
contact google directly, and ask them, thats the best way to find out

Ugh, is no one actually reading the question?
I'm not asking if the phone will work with Fi, I'm asking if the carrier switching is does in hardware or software, and if it is software do the devs here feel that they may be able to port the carrier switching to the other supported phones?

ok, now I understand..
asking questions here makes people assume you are discussing the 6T, NOT project fi/android in general..
good luck

wase4711 said:
ok, now I understand..
asking questions here makes people assume you are discussing the 6T, NOT project fi/android in general..
good luck
Click to expand...
Click to collapse
Everything I read is that you would only be using T-Mobile. But since the 6t is dual SIM you can have dual service. I plan on getting a one plus 6t and using fi(TMO) for phone calls and texting and Unreal mobile (ATT) for Data. I am not sure if you can use VZW or Sprint for the second SIM but T-Mobile and AT&T is better in most cases than TMO and Sprint (no US Cellular in my area)
---------- Post added at 03:22 AM ---------- Previous post was at 03:20 AM ----------
AsuraDas said:
Everything I read is that you would only be using T-Mobile. But since the 6t is dual SIM you can have dual service. I plan on getting a one plus 6t and using fi(TMO) for phone calls and texting and Unreal mobile (ATT) for Data. I am not sure if you can use VZW or Sprint for the second SIM but T-Mobile and AT&T is better in most cases than TMO and Sprint (no US Cellular in my area)
Click to expand...
Click to collapse
Alternatively you can get a pixel 2 or 3 and project fi esim and an alternate SIM. Although it's only one SIM at a time. That way though you do get essentially 3 carriers to choose from for service

So I found if I could dial a code in my dialer for fi, with the Google Fi app installed and activated, and get "cannot switch carrier", all I had to do was clear data on my app and the dialer switch would work

It's on their site. When you choose the 6t it shows what's supported and what's not. See attached image

To answer your question, yes it appears to be a hardware problem. It is either that we don't have the cdma radios needed for sprint or el goog is playing favorites and only wants certain hardware to work for carrier switching between tmobile and sprint. I am not familiar with the us cellular required radios but it is likely the same el goog restriction in this case as well. My vote is that el goog is trying to get people to buy the officially supported devices for full functionality, they are becoming more and more just like all other carriers now, huh?
Either way I think I am switching back to fi now that the 6t is at least officially compatible for use on tmobile and I am almost certain that wifi calling will work where service is poor. I am on tmobile now and wifi calling works just fine, I made a 30 minute wifi call last night and worked perfectly.

So it's a software problem. Google will not release the software as part of an update included with every android release or they won't work with the manufacturer to update the partition responsible

raiderep said:
To answer your question, yes it appears to be a hardware problem. It is either that we don't have the cdma radios needed for sprint or el goog is playing favorites and only wants certain hardware to work for carrier switching between tmobile and sprint. I am not familiar with the us cellular required radios but it is likely the same el goog restriction in this case as well. My vote is that el goog is trying to get people to buy the officially supported devices for full functionality, they are becoming more and more just like all other carriers now, huh?
Either way I think I am switching back to fi now that the 6t is at least officially compatible for use on tmobile and I am almost certain that wifi calling will work where service is poor. I am on tmobile now and wifi calling works just fine, I made a 30 minute wifi call last night and worked perfectly.
Click to expand...
Click to collapse
OnePlus 6T has full support for T-Mobile, AT&T, Verizon, and US Cellular. For Verizon and US Cellular, it also supports every CDMA Band.
For Sprint, it has every LTE Band and is missing one CDMA Band. Sprint doesn't allow unapproved devices on their network, and activation is tied to the device MEID unlike Verizon. There's no hardware reason why Fi can't allow at least LTE on both T-Mobile and Sprint. Perhaps the issue is that Sprint restricts them in some manner from using Fi on devices not in Sprint's database. Also Band 71 (T-Mobile) oddly doesn't work on Google Fi, so maybe it would lend credence to there being weird LTE Band restrictions for Fi's carrier agreements.

Well I am going back to tmobile, fi doesn't allow wifi calling and tmobile does so for me it is a no brainer. I still think that there is more going on here than just hardware issues but that's just my opinion. I mean, why is wifi calling not allowed on fi(tmobile) but it is on tmobile?

Not sure if you already switched back or if you are open to trying another service again, but i have been using Mint Mobile for a while now and love it. My monthly payment comes out to $24/Month with 5GB of data and an additional $10/1GB or $20/3GB.

Maybe https://play.google.com/store/apps/details?id=com.cheekydevs.fiswitch can help for OP users?

hunterulmes said:
Not sure if you already switched back or if you are open to trying another service again, but i have been using Mint Mobile for a while now and love it. My monthly payment comes out to $24/Month with 5GB of data and an additional $10/1GB or $20/3GB.
Click to expand...
Click to collapse
Does wifi-calling work with Mint Mobile??
Eta: Checked website and wifi calling is included, and 20 buck sale right now for 3 months 8gb a month...not bad for a test drive! I'm back on fi so I can pause it while I give it a go :

raiderep said:
Does wifi-calling work with Mint Mobile??
Eta: Checked website and wifi calling is included, and 20 buck sale right now for 3 months 8gb a month...not bad for a test drive! I'm back on fi so I can pause it while I give it a go :
Click to expand...
Click to collapse
Awesome dude! It is definitely worth it considering you save at least $40 from any other major carrier. Only thing it doesn't have is the visual voicemail but i never use it anyway so it doesnt bother me.
Hope it is as good for you as it has been for me.

hunterulmes said:
Awesome dude! It is definitely worth it considering you save at least $40 from any other major carrier. Only thing it doesn't have is the visual voicemail but i never use it anyway so it doesnt bother me.
Hope it is as good for you as it has been for me.
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Visual voicemail is working for me with pixel experience ROM on project fi which shouldn't work on OnePlus 6T if I remember correctly.
You try that ROM yet with mint mobile?
Sent from my ONEPLUS A6003 using Tapatalk

Dual Sim not enabled in USA?

Read one review that said you can't use Dual SIM in the USA right now? Anyone know if that's true and an ETA/or if It'll eventually come? Can't use my 7Pro with Dual Sim because my work verizon account won't let me switch to "CDMA Less" so when I saw the 8Pro supports CDMA I was excited.........then I read that.
Anyone have any more info?
Mahalo

I'm wondering the same thing. I want to order the unlocked OP8 pro from OP's website tomorrow but if the dual sim is disabled, there's no way to know when they are going to update it to enable dual sim. I want to dual sim out of the box, otherwise it's useless for me. My OP7 currently has two sims in it.

If you buy the carrier versions of this then no you will not have dual SIM, however if you get the unlocked version from OP themselves then you will be able to use dual SIM. Or at least this is how all previous versions have worked. Only caveat I would think is if you are a Verizon customer as I think they need the specific Verizon version.
Sent from my HD1907 using Tapatalk

bkeaver said:
If you buy the carrier versions of this then no you will not have dual SIM, however if you get the unlocked version from OP themselves then you will be able to use dual SIM. Or at least this is how all previous versions have worked. Only caveat I would think is if you are a Verizon customer as I think they need the specific Verizon version.
Sent from my HD1907 using Tapatalk
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I am on Verizon but if I wanted 5G, then I need to get the 5G VZW UWB version, is that right? But the only caveat is that they don't offer the Pro with VWZ 5G and only the standard OP8?

My understanding, and maybe I am mistaken, that the pro also comes in that version for Verizon.
Sent from my HD1907 using Tapatalk

bkeaver said:
My understanding, and maybe I am mistaken, that the pro also comes in that version for Verizon.
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Unfortunately it appears Verizon will only offer the non-pro model in the 12 GB RAM configuration for $799 but in two colors.
https://www.androidinfotech.com/oneplus-8-5g-uw-verizon-wireless/

Hey guys I just got the OP8 Pro version and dual sim is disabled , and obviously I ordered directly through ONE plus

daillcyruz said:
Hey guys I just got the OP8 Pro version and dual sim is disabled , and obviously I ordered directly through ONE plus
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Straight from OnePlus support today:
"as the device is just out and the first software update/OTA is yet to be released, it is recommended to wait for it rather than doing a reset to the device as the system itself says that it will be fixed on the upcoming update and you can change from single to dual."
Already RMA'ing it up and sending back. When/if it's ever enabled I'll give it another shot.
Borderline deceptive advertising IMHO.

vexille said:
Straight from OnePlus support today:
"as the device is just out and the first software update/OTA is yet to be released, it is recommended to wait for it rather than doing a reset to the device as the system itself says that it will be fixed on the upcoming update and you can change from single to dual."
Already RMA'ing it up and sending back. When/if it's ever enabled I'll give it another shot.
Borderline deceptive advertising IMHO.
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Pretty bummed out. I also ordered directly from OP. My T-Mobile (home) sim is in the first slot, and my work (AT&T) is in the second. I thought it must've been a mistake when I first saw the error, as I've used OnePlus phones ever since the OP5T and haven't seen this *not* work one day 1.

Bummed here too. Got mine today and was looking fwd to popping work and personal SIMs in but SIM2 is a no go. DM'd OP support on Twitter and was told it should work out of the box. I directed them to this thread and screenshots from my device. Crickets.....

julesism said:
Bummed here too. Got mine today and was looking fwd to popping work and personal SIMs in but SIM2 is a no go. DM'd OP support on Twitter and was told it should work out of the box. I directed them to this thread and screenshots from my device. Crickets.....
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I'm seeing in other threads that others seem to have it working (UK users, at least). Have you heard anything back from OP yet? I wonder if removing the second sim and putting it back will trigger something

The response I got was that they, "found that there is an issue with the Dual SIM." and "The team said they will roll out an update which would fix this issue." No ETA given and I didn't respond. I ended up listing and selling my OP8P on Swappa.

ARGH, hope they fix this soon so I can pull the trigger and buy one! Course until then my OP7P will work

Only response I've been able to get from OnePlus is:
This is to inform you that as of now we do not any official information regarding this. We request you to stay tuned to our social media channels for future updates.

Flapjack said:
I'm seeing in other threads that others seem to have it working (UK users, at least). Have you heard anything back from OP yet? I wonder if removing the second sim and putting it back will trigger something
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UK always been dual sim. Same for almost all the world except USA. What is with Yr networks over there being weirdos... Can't fathom why OP would block their usa unlocked variants from dual sim tho...

mikey_sk said:
UK always been dual sim. Same for almost all the world except USA. What is with Yr networks over there being weirdos... Can't fathom why OP would block their usa unlocked variants from dual sim tho...
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I really how no idea what you are talking about. All my OP phones, as far back as the OP3 my son has, has been dual sim. I had zero issue on my last four phones... (five, counting the Axon 7 I had), then this one comes along and it doesn't work. The only thing I can think of is something changed with the switch to 5G.

vexille said:
Straight from OnePlus support today:
"as the device is just out and the first software update/OTA is yet to be released, it is recommended to wait for it rather than doing a reset to the device as the system itself says that it will be fixed on the upcoming update and you can change from single to dual."
Already RMA'ing it up and sending back. When/if it's ever enabled I'll give it another shot.
Borderline deceptive advertising IMHO.
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Click to collapse
Deceptive advertising? More like your inability to read. It says on the website that dual sim will be enabled in a future update.

Can we flash an US version with the UK ROM?

Grrrrrrrr. I was really hoping yesterday's update (10.5.6) would've fixed the dual SIM issue, but no. It hasn't. It'll show VoWifi for a sec, then switch back to VoLTE.
At least MMS seems to be working with wifi on. That was broken until this update.

I'm in Germany and I can use dual SIM, but not with 5G enabled. Oneplus is still working on the software on multiple fronts and the US seems to be behind, see screenshot: