Database Users

VZW's 4G is not reliable for real-time application

I do get good 4G coverage from VZW most of the places I go. But the fact that the coverage is not 100% makes it useless for real-time application. This morning I was on a conference call using Skype dialing a regular phone number. In 30 minutes the call dropped twice, both due to I drove through a spot with no 4G coverage. As the phone switched from 4G to 3G the Skype connection was cut momentarily and the call dropped. On my OG Droid X on 3G this rarely happens.
I wish the phone handles switching from 4G to 3G more gracefully. Now I'll have to remember to turn off 4G when I start a Skype call. Quite annoying.
Any idea how to fix/workaround this?

This and failed text messages are the reason I left Verizon. ATT's 4G LTE is much boarder in cities and when you leave LTE areas then you fall back to HSPA+.
Sent from my SAMSUNG-SGH-I747 using xda premium

to each his own...
I have phones on AT&T and Verizon Wireless networks (one for work and one for play). I've consistently had better phone experience in the DFW areas as well as places I've traveled to on both coasts.
Consumer Reports article about AT&T being lowest in customer satisfaction.

Well sprints is great.
Sent from my SPH-L710 using Tapatalk 2

saccityp said:
Well sprints is great.
Sent from my SPH-L710 using Tapatalk 2
Click to expand...
Click to collapse
Except for almost the whole US except for a couple states has 3G.

I have a Blackberry on AT&T for work and the S3 and a Razr Maxx on Verizon.
In Dallas, there is no comparison that Verizon is better- never a dropped call, and data reliability is outstanding compared to AT&T.
I've had AT&T since before they existed as AT&T and their analog, GSM, Edge, 3G have never held up well in either voice or data in my 10-11 year's of experience with them in the DFW market.

luckily I live in an area were I always have 4g
Sent from my SCH-I535 using xda app-developers app

saccityp said:
Well sprints is great.
Sent from my SPH-L710 using Tapatalk 2
Click to expand...
Click to collapse
Sprint's WiMax also unfortunately had this issue. The reason was because when your phone switches from 4G to 3G, your IP address changes thus ending any active connections. This was especially bad for WiMax since it was on 2.4Ghz making it have very spotty coverage.
I'm not sure if it's possible to retain the IP from a switch or if Sprint does this with their LTE network.

In my area, VZW is only LTE and has better signal than any others... guess I don't have any choice...

I love Verizon's Service. LTE is on point here in Orange County CA and I get consistently better service than anyone without it. My only concern is with the phone itself. It keeps freezing on the data side once to twice a day. I just have to turn off and then turn on mobile data to get it to work.

Thanks for all the info about coverage of different carriers. The point of my post/question though, is that when there's not a 100% 4G coverage, the data connection is disrupted when you switch from 4G to 3G, causing trouble in any application that requires a stable data connection.
Seems even if the 4G coverage is not 100%, there should be a better way of handling switching to 3G such that it doesn't drop data completely.

simollie said:
Thanks for all the info about coverage of different carriers. The point of my post/question though, is that when there's not a 100% 4G coverage, the data connection is disrupted when you switch from 4G to 3G, causing trouble in any application that requires a stable data connection.
Seems even if the 4G coverage is not 100%, there should be a better way of handling switching to 3G such that it doesn't drop data completely.
Click to expand...
Click to collapse
There's nothing you can do about it but the carriers can fix it.
The solution would be to keep the same IP address when switching from 3G to 4G. The reason video calls in skype, browser downloads, and other things stop is because the IP address changes when switching. If the same IP address was kept from the switch, that wouldn't happen.
One thing that carriers could do when connecting to 4G is: Have your phone connect to both 3G and 4G at the same time and then request the same IP for 4G that you had on 3G. Then it can switch to 4G and switch off the 3G connection thus retaining the same IP and leading to no interruptions. All of this would happen in probably less than a second. The same thing can be done for switching from 4G to 3G.
I don't see why carriers can't/don't do this. Either they haven't thought to implement it, or there is some other reason that would make this impractical.

using 3G data during a call S4

After checking in to why this would not work I was told that it just isn't supported. You can use 4G and wifi data duringa call but not 3G. It's a little bit ofa draw back for me. I was just wondering what any one else's thoughts where on this?
I do like the phone so far other than this.

tman73 said:
After checking in to why this would not work I was told that it just isn't supported. You can use 4G and wifi data duringa call but not 3G. It's a little bit ofa draw back for me. I was just wondering what any one else's thoughts where on this?
I do like the phone so far other than this.
Click to expand...
Click to collapse
I'm taking a chance on sounding silly, but that's just the way it is on CDMA networks. You can only do one or the other on 3G: voice or data. Being able to use voice and data simultaneously is a perk of 4G, LTE or wifi. Of course, if you have no LTE available where you are, or no wifi, it's voice or data. I know it's frustrating. I live in Minneapolis, Uptown area. We never did get very good Wimax at our house, especially indoors.
When the LTE phones came out, I was in no hurry to upgrade, as there was no LTE anywhere in the Twin Cities. No one could hazard a guess as to when it would be rolled out. The Evo LTE has been out for almost a year, and LTE is finally becoming available. It's still pretty spotty, though. The good thing is, even with a weak signal at my house, I still can get nearly 5000kbps down inside my house. That's a lot better than 3G for sure! Sprint is saying we'll have LTE pretty much throughout the city in the next couple of months. I'll believe that when I see it.
I like my S 4 pretty well. It's still strange getting used to Touch Whiz after Sense. I moved to the S 4 after having the original Evo and then the Evo 3D. I'm looking forward to rooting and being able to run custom ROMS on my S 4.

smarcin said:
I'm taking a chance on sounding silly, but that's just the way it is on CDMA networks. You can only do one or the other on 3G: voice or data. Being able to use voice and data simultaneously is a perk of 4G, LTE or wifi. Of course, if you have no LTE available where you are, or no wifi, it's voice or data. I know it's frustrating. I live in Minneapolis, Uptown area. We never did get very good Wimax at our house, especially indoors.
...
Click to expand...
Click to collapse
That's not exactly accurate. Some phones can do simultaneous CDMA voice and data. However, it requires extra complexity in the phone (what's called "multiple paths") and with Sprint going to LTE, they decided to put a separate transmit path in the device just for LTE (and Wi-Fi).

smarcin said:
I'm taking a chance on sounding silly, but that's just the way it is on CDMA networks. You can only do one or the other on 3G: voice or data. Being able to use voice and data simultaneously is a perk of 4G, LTE or wifi. Of course, if you have no LTE available where you are, or no wifi, it's voice or data. I know it's frustrating. I live in Minneapolis, Uptown area. We never did get very good Wimax at our house, especially indoors.
When the LTE phones came out, I was in no hurry to upgrade, as there was no LTE anywhere in the Twin Cities. No one could hazard a guess as to when it would be rolled out. The Evo LTE has been out for almost a year, and LTE is finally becoming available. It's still pretty spotty, though. The good thing is, even with a weak signal at my house, I still can get nearly 5000kbps down inside my house. That's a lot better than 3G for sure! Sprint is saying we'll have LTE pretty much throughout the city in the next couple of months. I'll believe that when I see it.
I like my S 4 pretty well. It's still strange getting used to Touch Whiz after Sense. I moved to the S 4 after having the original Evo and then the Evo 3D. I'm looking forward to rooting and being able to run custom ROMS on my S 4.
Click to expand...
Click to collapse
There's no harm in sounding silly. :silly: We forgive you.
The Sprint S3 and Evo 4G LTE both do it, it's called SVDO, simultaneous voice and EVDO 3G data (and ofcourse simultaneous voice and LTE and or WiFi).
For some reason, Sprint decided to fore-go SVDO on LTE phones after those two (S3 and Evo 4G LTE) and instead focus on SVLTE. To be fair, in all the years i've been with Sprint (13) i never thought i would ever need or use that feature until i got the S3. The first time i unknowingly used it i didn't even realize that while on a call, i was playing WordFeud multiplayer. It's something i do all the time now, and definitely sad to see it gone on the newer phones.
As their LTE network gets more robust and mature, it won't be much of an issue, but as of now 3G is in more places than their LTE network is. So...

LordLugard said:
There's no harm in sounding silly. :silly: We forgive you.
The Sprint S3 and Evo 4G LTE both do it, it's called SVDO, simultaneous voice and EVDO 3G data (and ofcourse simultaneous voice and LTE and or WiFi).
For some reason, Sprint decided to fore-go SVDO on LTE phones after those two (S3 and Evo 4G LTE) and instead focus on SVLTE. To be fair, in all the years i've been with Sprint (13) i never thought i would ever need or use that feature until i got the S3. The first time i unknowingly used it i didn't even realize that while on a call, i was playing WordFeud multiplayer. It's something i do all the time now, and definitely sad to see it gone on the newer phones.
As their LTE network gets more robust and mature, it won't be much of an issue, but as of now 3G is in more places than their LTE network is. So...
Click to expand...
Click to collapse
Thanks to both you guys for setting me straight. I was parroting what I'd always heard from the OG Evo (which I had) and then the 3D, which I just left. Of course, you couldn't do SVDO on either. On the 3D, though, you could do a call + data if on 4G (Wimax), which was and still is, pretty spotty here in Minneapolis-St Paul. Of course, Sprint has been rolling out LTE for a while now. It appears, then disappears a lot. Unfortunately 3G has been awful for months. I will be so thankful when LTE is finally and fully deployed!

No problem, welcome. We are all here to help and learn from each other along the way. :good:

smarcin said:
Thanks to both you guys for setting me straight. I was parroting what I'd always heard from the OG Evo (which I had) and then the 3D, which I just left. Of course, you couldn't do SVDO on either. On the 3D, though, you could do a call + data if on 4G (Wimax), which was and still is, pretty spotty here in Minneapolis-St Paul. Of course, Sprint has been rolling out LTE for a while now. It appears, then disappears a lot. Unfortunately 3G has been awful for months. I will be so thankful when LTE is finally and fully deployed!
Click to expand...
Click to collapse
Those devices did not support SVDO. I know the S3 and EVO LTE support it, and possible the Nexus LTE (additionally, the newest Optimus maybe?). I really liked this feature when on the phone and being able to quickly check email or pull up traffic info without relying on WiFi.
The S4 does not support simultaneous voice+data, and I believe that anandtech/ars had good articles describing the data paths employed by the HTC One and S4.
What I found interesting is that when the 4G connection drops out and 3G connects, I can just send a text and get 4G back immediately instead of waiting to hop towers. I suspect that a phone call would serve the same purpose.
Also, toggling 4G off and on will get you back the same mobile IP address. This is not the case with 3G, which results in a new IP address being assigned. In order to get a new IP on LTE, you have to toggle airplane mode (which is likely why this is the first step in troubleshooting LTE connectivity).

Thought I'd help you all out to understand it since you all are sooooo new to having LTE on your phones and all (that was a joke, don't get bent out of shape over it....)
The LTE standard only supports packet switching with its all-IP network. Voice calls in GSM, UMTS and CDMA2000 are circuit switched, so with the adoption of LTE, carriers will have to re-engineer their voice call network. Three different approaches sprang up. Most major backers of LTE preferred and promoted VoLTE (Voice over LTE, an implementation of IP Multimedia Subsystem or IMS) from the beginning. The lack of software support in initial LTE devices as well as core network devices however led to a number of carriers promoting VoLGA (Voice over LTE Generic Access) as an interim solution.[13] The idea was to use the same principles as GAN (Generic Access Network, also known as UMA or Unlicensed Mobile Access), which defines the protocols through which a mobile handset can perform voice calls over a customer's private Internet connection, usually over wireless LAN. VoLGA however never gained much support, because VoLTE (IMS) promises much more flexible services, albeit at the cost of having to upgrade the entire voice call infrastructure. While the industry has seemingly standardized on VoLTE for the future, the demand for voice calls today has led LTE carriers to introduce CSFB (Circuit Switched Fallback) as a stopgap measure. When placing or receiving a voice call, LTE handsets will fall back to old 2G or 3G networks for the duration of the call.
Source
Click to expand...
Click to collapse

Just to be a bit more clear, it was not a sprint decision it is based on Qualcomm's chip design. The s4 krait simply supported svdo out the box and the snapdragon 600 doesn't.

themuffinman said:
Just to be a bit more clear, it was not a sprint decision it is based on Qualcomm's chip design. The s4 krait simply supported svdo out the box and the snapdragon 600 doesn't.
Click to expand...
Click to collapse
I am not sure that is correct. First of all, the 600 is the CPU, not the modem - which is a separate component altogether. Secondly, I believe SVDO support is more a factor of the front end RF design being set up to feed multiple transmit paths to the modem, which in the case of the Qualcomm modem, I believe has the necessary additional ports to handle it. However, it would have necessitated a more complex RF design which Sprint and Samsung probably opted to forgo, given that Sprint's is already getting on the LTE bandwagon.

myphone12345 said:
I am not sure that is correct. First of all, the 600 is the CPU, not the modem - which is a separate component altogether. Secondly, I believe SVDO support is more a factor of the front end RF design being set up to feed multiple paths to the modem, which in the case of the Qualcomm modem, I believe has the necessary additional ports to handle it. However, it would have necessitated a more complex RF design which Sprint and Samsung probably opted to forgo, given that Sprint's is already getting on the LTE bandwagon.
Click to expand...
Click to collapse
You are absolutely correct but wouldn't that be dependent on whether the modem supported that design?

themuffinman said:
You are absolutely correct but wouldn't that be dependent on whether the modem supported that design?
Click to expand...
Click to collapse
My best guess is that the advanced modem in the S4 could handle it, but to add it on top of SVLTE along with the newer MIMO antenna configurations and multi-band transceivers and switches found in the latest LTE capable handsets would require the addition of another RF chain in the device and thus significantly raise the complexity of the design to a degree that doesn't make it worthwhile for Samsung to implement it.

It's not going to happen.... It's a USA cdma limitation it has NOTHING to do with the phone
Sent from my GT-I9505 using xda premium

hyelton said:
It's not going to happen.... It's a USA cdma limitation it has NOTHING to do with the phone
Sent from my GT-I9505 using xda premium
Click to expand...
Click to collapse
Yes, for the most part, cdma devices has never been able to do voice and 3g data simultaneously but there is something called svdo which allows supported devices to do just that. The HTC thunderbolt on verizon was one of the first phones to support svdo(simultaneous voice and data over 3g on a cdma network). Getting it to work has absolutely nothing to do with the network but how the phone is designed. Now I am a sprint customer so I don't know what other devices supported it on verizon since but I do know that both sprint and verizon's gs3 both support svdo as well as sprints evo lte and a few other devices.

hyelton said:
It's not going to happen.... It's a USA cdma limitation it has NOTHING to do with the phone
Sent from my GT-I9505 using xda premium
Click to expand...
Click to collapse
Not true. There have been several devices that could do it.

myphone12345 said:
Not true. There have been several devices that could do it.
Click to expand...
Click to collapse
Oh theres plenty!! of devices that support it!! Its the NETWORK that does not.

hyelton said:
Oh theres plenty!! of devices that support it!! Its the NETWORK that does not.
Click to expand...
Click to collapse
You keep talking like the network is preventing it from being possible, yes there are technical obsticals but obviously there are ways around it. So the botton line is, can you have a phone thats on a cdma network that can do voice and 3g data at the same time? That answer is yes

Seriously, why are we arguing this much about this? Simultaneous voice AND 3G on Sprint, yes, period. S3 and Evo LTE do it, S4 doesn't. Let's move on to other things.

Simultaneous voice and data

Has there been a determination as to whether the v20 has Simultaneous voice and data capability? I still waiting patiently (not) for delivery of my v20.

This is completely carrier dependent in handset firmware configuration

Skripka said:
This is completely carrier dependent in handset firmware configuration
Click to expand...
Click to collapse
I agree, my carrier is Sprint.With my old device a note 3 it has dual antennas making simultaneous voice and data possible on 4g lte. Now with Sprint Spark it not possible with a single antenna device. Do you know by chance if the v20 is a dual antenna device?

Not sure about the single sim version, might work on the dual sim one, at least I can have 4G+3G or 3G+3G simultaneous

Works will AT&T. I know for a fact, just used both Simultaneous an hour ago

Tmo and att have volte for sure

Any GSM carrier will be able to do voice and data at the same time. It's the CDMA carriers that will be up in the air if they will be able to or not.

I can confirm the Verizon V20 does voice & data at the same time due to the voice over LTE. I haven't had that functionality since the HTC Thunderbolt when 4G first came out years ago
I've been running the V20 for 8 days now and LOVE it. Now if only we can find a way to exploit the locked bootloader.

Do you mean VoLTE?
Sent from my LG-H990 using Tapatalk

The Verizon model has video calling so it has data and voice at same time.
Sent from my VS995 using Tapatalk

mrtruckincowboy said:
The Verizon model has video calling so it has data and voice at same time.
Sent from my VS995 using Tapatalk
Click to expand...
Click to collapse
My VZ LG v20 does NOT have voice and data at same time.

Go into advanced calling and turn that on it'll give it to you then
Sent from my VS995 using Tapatalk

jimzweb1 said:
I agree, my carrier is Sprint.With my old device a note 3 it has dual antennas making simultaneous voice and data possible on 4g lte. Now with Sprint Spark it not possible with a single antenna device. Do you know by chance if the v20 is a dual antenna device?
Click to expand...
Click to collapse
That's the sole reason why I left Sprint
Sent from my VS995 using Tapatalk

All Verizon lg v20 have voice and data at the same time. You can be on a phone call with LTE speeds.
I had sprint years back and hated them because my music streaming would stop and load. Then, another spotty sprint area, my music would stop again and load. Hated that.
Sent from my VS995 using Tapatalk

has anyone with a sprint v20 been able to verify if this does work? my sprint note 4 does not have this, but my previous Sprint S4 did have it. I am hoping the Sprint v20 has it.
Thanks,
JD

Until they introduce VoLTE on Sprint no Sprint phone that has all of the LTE bands in it will be able to do simultaneous voice and data and VoLTE is not a priority for Sprint right now. So you either gotta move back to something like the Note 3 and get less LTE coverage or leave Sprint to get what you want.
Sent from my LG-LS997 using Tapatalk

FJ40dan said:
My VZ LG v20 does NOT have voice and data at same time.
Click to expand...
Click to collapse
Mine does, but only when connected in 4G. And I believe advanced calling needs to be activated for it to work.

To echo above, the simultaneous works fine on the V20, even stock out of the box with no changes, but you have to be in a 4G LTE area to do it. If you drop to 3G, you lose that ability. Pretty sure it was the Thunderbolt that last had the option to do both in a 3G area , as was mentioned earlier. Only thing that I haven't tested, is switching. And by that, I mean, if you're in a 3G area on a call, and enter a 4G LTE coverage, if it'll pick that up while within the call, or if you have to hang up before it will switch over. My S6 wouldn't do it, and I really don't expect the V20 to either. Probably something with how the data is "turned off" in a manner when the call is made, so it probably isn't even actively hunting for a data signal until the call is over. I live in an area where I bounce between nothing, 3G, and 4G on my way to work, so I always had to make sure to toggle airplane mode off and on if I was just coming out of a spot where I was still picking up 3G but knew there was 4G there, so the phone would grab the better signal coming in, and then make my phone call to keep the data. So far, the V20 seems to be a touch quicker than my S6 was in the 3G/4G switchover though.

Pixel has poor network handling, switch to LTE only mode.

I have T-Mobile and I've noticed the Pixel has issues finding the best network to use. For example my school has excellent LTE coverage ("full bars") yet for some reason the Pixel would use HSPA+ or 3g instead which is extremely slow compared to the 12+ MB I get on LTE
So I switched the Pixel to LTE only mode, and I've yet to have any issues with reception, I always have LTE. Where before the Pixel would often switch to 3g when LTE was available.
This is obviously an issue with the Pixel, Google has struggled with this in the past w/ Nexus devices. They love 3G.
I recommend everyone try this little hack, LTE coverage is good enough these days I feel 3G is not needed (in most areas).
To switch the Pixel to LTE only mode enter --
*#*#4636#*#*
-- Into the dialer, then go to "Phone Information", and under "Set Preferred Network Type" select "LTE only".
When I did this my Pixel immediately switched from HSPA+ to "full bars" LTE (ya network handling on this phone is that bad).

This issue may not affect Verizon or CDMA networks, I just know for T-Mobile, it's pretty bad.

Android5ever said:
This issue may not affect Verizon or CDMA networks, I just know for T-Mobile, it's pretty bad.
Click to expand...
Click to collapse
What is

PunishedSnake said:
What is
Click to expand...
Click to collapse
Read the post?

Android5ever said:
Read the post?
Click to expand...
Click to collapse
Read it now asking you

PunishedSnake said:
Read it now asking you
Click to expand...
Click to collapse
The Pixel uses 3g instead of LTE even though there is strong LTE signal available.

Android5ever said:
The Pixel uses 3g instead of LTE even though there is strong LTE signal available.
Click to expand...
Click to collapse
Yup happens to me

Yeah but how good is reception after it switches over to LTE? Same amount of bars or less?

This is great for people who have carriers who support the Pixel on their VOLTE.. Which is only like 3 (ish) carriers worldwide, everyone else wont be able to make or receive phone calls if they do this. Just FYI.

My carrier Jio is 4G LTE + VoLTE only. They do not have any legacy 2G/3G network.
I felt that Pixel is excellent in switching to the 4G band which has strongest singal.

This wouldn't work with the AT&T and Verizon MVNOs I've used, but I'd want my phone to automatically switch for better coverage if I was doing this sort of thing. For example using Tasker you may be able to have the phone switch the radio depending on condition, such as being near a certain cell tower. The following app works on a rooted Pixel to change the network modes, so it's at least possible to change the network mode automatically with a rooted phone.
https://forum.xda-developers.com/android/apps-games/widget-toggle-network-type-5-0-xda-t2945406

sanke1 said:
My carrier Jio is 4G LTE + VoLTE only. They do not have any legacy 2G/3G network.
I felt that Pixel is excellent in switching to the 4G band which has strongest singal.
Click to expand...
Click to collapse
If you go to Settings > More > Cellular network > Preferred network type, what options do you see there? I'm curious because if Jio only has LTE, LTE-only option might be available in that menu.
Personally I'm on Verizon and also use LTE-only mode. It really improves experience in low signal areas where the phone often switches to weak CDMA, which is good for nothing (no data and 50/50 probability for a call to work). In LTE-only mode it stays on weak LTE that is still usable.
The only problem with it is if I open Cellular network settings or restart the phone, it reverts back to LTE/CDMA mode, so I need to change it back to LTE-only again. At least I found an app called 4G LTE Switch that works like a shortcut to the hidden menu, so I don't have to type *#*#4636#*#* every time.

Weird, I have no issues with the Pixel on T-Mobile. It loves to stick on LTE as long as possible. Even if it drops to 3G/2G in weak areas, it switches back to LTE very quickly.

geoff5093 said:
Weird, I have no issues with the Pixel on T-Mobile. It loves to stick on LTE as long as possible. Even if it drops to 3G/2G in weak areas, it switches back to LTE very quickly.
Click to expand...
Click to collapse
Same here. No issues at all with TMobile.
Sent from my Pixel using XDA-Developers Legacy app

I seem to have this problem too. Can't seem to fix it with AT&T.

dynamikd said:
Same here. No issues at all with TMobile.
Sent from my Pixel using XDA-Developers Legacy app
Click to expand...
Click to collapse
A third to the no issues at all on T-Mobile. I've also used my Pixel on att and vzw with no premature fallback issues.
Sent from my Pixel using Tapatalk

HTC U11 AT&T support and collection

this is going to be an AT&T specific collection thread for this carrier specific stuff like VVM and try to make wifi calling work, also users can ask any questions related to AT&T and I will try to answer them and hopefully other users can help to.
HTC lying about AT&T "compatibility"
U11 does not support VoLTE on AT&T
U11 does not support WiFi-Calling on AT&T
U11 does not support Video Call on AT&T
U11 does not support Integrated Visual Voicemail on messages app like it use to on HTC One M7, M8 & M9, you need the stand alone app which is crap...
the phone works for calls data LTE works MMS haven't test yet I don't use them....

Any comment from AT&T on any of this? We know HTC's saying it works.

bassoprofundo said:
Any comment from AT&T on any of this? We know HTC's saying it works.
Click to expand...
Click to collapse
Haha, AT&T never comments on these things.. and it won't work.. I have and unlocked GS8 and it don't work there either.. so no way in #[email protected] it will work on HTC..

Argh... This sucks. I'm in an area where coverage quality has dropped significantly, and I spend a lot of time in a building where almost no signal gets through from any provider. Wifi calling and texting has become a lot more important for me for that reason. I can get by without the extra features, but it's tough now what I've had them (currently using an S7 edge and Note 5).I guess that leaves me with no option but Samsung or LG (and all of the provider bloatware).

https://twitter.com/CrowsnestIT/status/874728832468746240

The results of my time and effort with both AT&T and Verizon and a chat with HTC : View attachment 4181945

Don't activate the U11 on AT&T, once their computer "knows" you have an uncertified device you lose LTE data and are forced onto HSPA+!
Does anyone know an APN setting that will reactivate LTE?

longdongsilver said:
Don't activate the U11 on AT&T, once their computer "knows" you have an uncertified device you lose LTE data and are forced onto HSPA+!
Does anyone know an APN setting that will reactivate LTE?
Click to expand...
Click to collapse
Here

JEANRIVERA said:
Here
Click to expand...
Click to collapse
Here

JEANRIVERA said:
Here
Click to expand...
Click to collapse
Weird. Your icons are not same as mine. Are you 4G (HSPA+) or 4G LTE? My APN settings don't have a field for APN protocol

longdongsilver said:
Weird. Your icons are not same as mine. Are you 4G (HSPA+) or 4G LTE? My APN settings don't have a field for APN protocol
Click to expand...
Click to collapse
I am using a custom rom that's all...

no band 30 guys. http://www.htc.com/us/smartphones/htc-u11/

Not a fair critisim for HTC. Even if the phone is capable like my non-AT&T S8, if the phone does not have the AT&T logo on it they will not allow these features. So complain about AT&T like I do.

I'm on at&t and I'm getting full LTE with zero issues.

Proof

Z51 said:
Proof
Click to expand...
Click to collapse
See if you still have LTE during a call. The LTE icon should go away and if you go into about phone and then network, it'll most likely say HSPA. The problem is we're not getting services like VoLTE and wifi calling. In normal cases, HSPA speeds should be manageable considering the average phone call won't be very long and there's wifi nearly everywhere now. This is just bad for those in areas with poor reception. I've been doing ok with the whole issue since I never really noticed much of a difference with HD voice and I'm usually always somewhere with wifi.
My question is what did they do differently with the U11 than the 10. We never had any of these issues with the 10 being unlocked and not certified and all that bs

GSE20 said:
See if you still have LTE during a call. The LTE icon should go away and if you go into about phone and then network, it'll most likely say HSPA. The problem is we're not getting services like VoLTE and wifi calling. In normal cases, HSPA speeds should be manageable considering the average phone call won't be very long and there's wifi nearly everywhere now. This is just bad for those in areas with poor reception. I've been doing ok with the whole issue since I never really noticed much of a difference with HD voice and I'm usually always somewhere with wifi.
My question is what did they do differently with the U11 than the 10. We never had any of these issues with the 10 being unlocked and not certified and all that bs
Click to expand...
Click to collapse
It lasts about 20 seconds then it changed to 4G only. LTE is gone

Z51 said:
I'm on at&t and I'm getting full LTE with zero issues.
Click to expand...
Click to collapse
Z51 said:
Proof
Click to expand...
Click to collapse
I also get LTE that is not the issue here, the problem is VoLTE.
GSE20 said:
See if you still have LTE during a call. The LTE icon should go away and if you go into about phone and then network, it'll most likely say HSPA. The problem is we're not getting services like VoLTE and wifi calling. In normal cases, HSPA speeds should be manageable considering the average phone call won't be very long and there's wifi nearly everywhere now. This is just bad for those in areas with poor reception. I've been doing ok with the whole issue since I never really noticed much of a difference with HD voice and I'm usually always somewhere with wifi.
My question is what did they do differently with the U11 than the 10. We never had any of these issues with the 10 being unlocked and not certified and all that bs
Click to expand...
Click to collapse
The importance for me & probably for many others on getting VoLTE is that I do technical support on my phone and trouble shooting while on a call takes to much time most of the time, that being said if I don't have the option to make phone calls on VoLTE means internet speeds while on a call is crap.... I really don't care about HD call clarity as far as I can here the other person, but the internet speed while on a call it is important to me the faster I can browse the faster I can provide technical support
Z51 said:
It lasts about 20 seconds then it changed to 4G only. LTE is gone
Click to expand...
Click to collapse

Having a weird issue with my U11 on AT&T. I randomly lose all signal for no reason then takes a good 30 seconds for it to connect again.
It has happened at least a couple times a week mid phone call which is really obnoxious. I have seen it happen a few times when I am just browsing through my phone not on a call so I know its not just a calling issue, and I am sure it has happened multiple times when I am not looking at my phone at all and I don't notice.
Anyone else had this issue? An issue with AT&T and can be fixed by a firmware update? Or am I alone and need to RMA?

I know this thread is old, but can't we use the ATT RUU if you do what you need to do? We used to be able to go back and forth, at least that's what I did with both my M7 and M8. If you really need those features, that's what I would do.